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GATIC - Engineered Access Covers and Drainage Gratings

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A challenge in the twenties. Still challenging today.

Gatic’s involvement with gas air-tight inspection covers spans nearly 100 years

In fact, one of the earliest covers produced by the company (then known as Dover Engineering) is still in service at a Shell garage in Malta, where it was first installed in 1928.

Original 1928 cover still in use

When we were asked to design our first gas and air tight cover for Shell, back in the 1920s, it was to a demanding specification. Our success in meeting this specification can be judged by the fact that one of the first covers supplied can still be seen in use at a Shell garage in Malta where it was originally installed.

With a history of installations dating back to 1928, Gatic is without doubt the fully proven International Standard for engineered access covers and drainage gratings.

Continuous development and refinement

Since that first success we have continued to improve and adapt our range of products to suit the ever increasing and diverse demands of travel, industry and commerce, developing ductile iron, machined access covers in a range of surface finishes and load ratings to cope with the harshest and most punishing of environments.

GATIC

GAS AIR TIGHT INSPECTION COVERS

Gatic is part of the AWMS family

Future challenges

Despite this huge variety, technology never stands still for long and we are never allowed to rest on our laurels. These days more and more traffic is using our roads, carrying heavier loads at higher speeds. Huge numbers of containers pass through our ports daily and ever bigger and heavier aircraft are rolling down the taxiways and across the aprons of the airports we serve.

The challenges may be daunting but we are confident that we will continue to rise to the occasion and supply products to meet or exceed our customers demands.

Alumasc (AWMS) is a UK-based supplier of premium building products. The majority of the group’s business is focussed on sustainable building products that enable customers to manage energy and water use in the built environment.

They include: Skyline Architectural Aluminium; Alumasc Rainwater Gutters & Downpipes; Harmer Building Drainage; Wade Building Drainage and Gatic Drainage & Engineered Access Covers.

Introduction

Designed for the most demanding environments

At Gatic, we know that our reputation is only as good as the performance of our products. So we do our very best to ensure that the product you buy is the right product for the job and that it is installed correctly in order to be able to do its job successfully. That is why we make a point of supplying all the help and technical support that we can.

Manufacturing standards

It all starts with the manufacturing process. All the basic components for Gatic covers are cast to exacting specifications, developed over time.

The composition of the ductile iron is Quality controlled to ensure the product’s robustness is achieved against the load rating requirements.

This is because our products will eventually be machined to tight specifications in order to achieve the gas, air-tight and non-rocking fit upon which our reputation is built.

Gatic covers are produced in a wide range of strength ratings to suit any real-life application. When correctly installed, they can be expected to continue to perform as intended for the lifetime of the project, with minimal servicing. Our covers are designed to work effectively in the harshest environments.

Details of the range of load factors to match your requirements can be found on pages 10-11 of this publication. Selecting the appropriate product for your intended application means that you will achieve the service life and performance you need without over specifying, thus ensuring that you get the product you need with the most beneficial ratio of strength to cost. We can help you with this selection process and regard it as a very important part of our service.

Professional advice on your project

Our design engineers are available to discuss the technical aspects of any project involving Gatic covers, whether large or small. The application of a little expert knowledge often means that what appear to be intractable problems can be overcome with relative ease.

You can tap into this expertise either through our website www.gatic.com or by calling Tel: +44 (0)1787 475 151.

You will find most of the information you need to narrow down the choice of covers for your particular project within the pages of this publication. To see in detail how Gatic covers are constructed and fitted on site, we suggest you go to the website, where much more information is available.

Expert advice and assistance

If your project throws up some particularly challenging problem which needs an in-depth understanding, please don’t hesitate to get in touch since, in all probability, we have encountered a similar challenge before and, even if this is not the case, our 90-plus years of experience in dealing with these issues are sure to help you reach a satisfactory resolution.

Once these choices have been made you can relax, safe in the knowledge that your covers will be delivered to site in a timely manner.

Quality & Sustainability

In addition to compliance with environmental legislation, Alumasc is committed to developing its own measures to limit the adverse effects of its activ ities on the environment. To this end, Alumasc operates an environmental policy that fully integrates all aspects of company activities.

Green Economy

The Alumasc Group plc is pleased to be recognised by London Stock Exchange as contributing to the global green economy. The Mark is given to companies and funds that derive more than 50% of revenues from environmental solutions.

The Alumasc Group plc provides high-quality, low carbon, sustainable building products, systems and solutions, which help manage the scarce resources of energy and water in the built environment, and improve quality of life for the owner/occupier.

BSI ISO 9001:2015

This certification provides a structured framework for quality management systems (QMS), enabling us to enhance their overall efficiency and effectiveness. The standard also promotes a customer-centric approach, emphasising the importance of meeting customer requirements and delivering consistent, high-quality products and services.

Quality Assurance

The Gatic Quality Management System has been approved to BS EN ISO 9001 The Gatic Environmental Management System has been approved to ISO 14001

Sustainability

Alumasc actively pursues sustainability in its full range of products, and, with its partners and suppliers, is committed to putting consideration for the built and wider environment at the core of all aspects of current business and future development .

NBS Source

For over 50 years, NBS has helped architects produce their specifications and connect them with manufacturers. NBS Source helps specifiers select products confidently and effciently.

Design Considerations

A few FAQ’s that are worth considering as you look over the brochure. Typically these considerations guide you to selecting the most suitable cover for the project.

Gatic covers are designed both to protect and give easy access to a diverse range of underground services, examples include:

• Manhole/Pump/Valve/Transformer Chambers

• Pipe and Cable Service Trenches

• Cable Draw Pits

• Lighting Pits

• Fuel and Fire Hydrant Pits

• Machinery/Plant Access Chambers

• Combined Sewer/Overflow Chambers

Typical applications can be found in a diverse range of projects including:

• Airports

• Ports/Docks

• Utilities - Gas/Electricity

• Water - Sewerage Treatment Works/ Water Treatment Works/Pumping Stations

• Power Stations/Sub-Stations

• Commercial and Industrial Applications

• Data Centres

• Tunnels

Cover options

Gatic covers are available in a choice of designs to suit different conditions and requirements for appearance.

Recessed for concrete infill

Covers are designed with an arrangement of cross-ribs for infilling with concrete. This provides a very strong and hard wearing surface with an attractive appearance.

Solid top anti-slip surface

High performance covers that are lighter in weight than those incorporating concrete infill. Solid top covers incorporate a non-slip lozenge pattern on the surface. NOTE: Covers are also available for Pavior infill.

Using this brochure

Gatic covers have been created to suit the widest range of applications and to meet different loading requirements, from relatively light loads (eg, pedestrian areas and residential roads) to the most heavy (eg, airports, dockyards, etc).

BS EN 124: classifies covers according to their place of installation as shown below. Where there is any doubt, the stronger class should be selected.

Did you know?

Our products are manufactured from 100 per cent ductile iron, giving high elasticity, which means Gatic covers and frames are highly resistant to physical forces and shock.

Gatic covers comprise ductile iron and structural steel components, all of which are recyclable.

Data from BS EN 124: (Gully tops and manhole tops for vehicular and pedestrian areas. Design requirements, type testing, marking, quality control) The covers in our brochure are organised according to the BS EN 124 classifications. Please refer to the Loading Group Selector Guide on pages 10-11.

Introduction - Range Summary

Gatic offers five main load classes and within each, offers the following cover types.

Single Covers and Frames

Duct Covers and Frames

Continuous Trench Covers and Frames

Multispan Covers and Frames

Gratings and Frames

Loading group selector guide

The Gatic range of loading groups is organised according to BS EN 124: (Gully tops and manhole tops for vehicular and pedestrian areas. Design requirements, type testing, marking, quality control).

Compliance of the product with the respective part of EN 124 series does not replace the responsibility of the user to ensure that the gully top or the manhole top is correctly installed and its elements (frame and grating/cover) have the necessary performance values.

Loading Group 6 F900

35 tonne slow moving wheel load - test load 900kN Areas imposing particularly high wheel loads:

▪ Airfield pavements

▪ Taxiways

▪ Civil airports

▪ Dockyards

▪ Other areas where single slow moving wheel loads up to 35 tonne may be encountered

Loading Group 5 E600

20 tonne slow moving wheel load - test load 600kN

▪ Some airfield pavements

▪ Dockyards

▪ Other areas where single slow moving wheel loads up to 20 tonne may be encountered

Loading Group 4 D400

11.5 tonne wheel load - test load 400kN

▪ Power stations

▪ Carriageways

▪ Hard shoulders

▪ Parking areas for all vehicle types

Loading Group 3 C250

▪ For high density traffic conditions we recommend the use of a vibration resistant locking system

5 tonne wheel load - test load 250kN

▪ Kerbside installation

▪ Pedestrian precincts

▪ Yard

Loading Group 2 B125

3 tonne wheel load - test load 125kN

▪ Footways

▪ Pedestrians areas

▪ Car parks

▪ Driveways

▪ Internal floors

Features and benefits

Cover types

Covers are recessed for concrete infill paviours or solid top according to specifier preference. Assist lift options for both recessed and solid top cover types are available.

Concrete infill recessed covers

Recessed covers are designed for filling with concrete as specified in BS EN 124 - 45 N/mm 2 for a test cube of 150mm, or a 40N/mm2 for a test cylinder 150mm diameter x 300mm high, using a 10mm down coarse aggregate.

Anti-slip surface covers

Concrete infill covers provide a non-slip surface similar to the surrounding areas. Solid top covers incorporate a lozenge pattern on the surface.

Materials

The components of Gatic covers are manufactured from the following materials:

Ductile iron components to BS EN 1563

Structural steel sections (removable beams) to BS EN 10365.

Fine tolerances

The seating faces of Gatic covers and frames are machined to ensure metal-to-metal contact within 0.25mm tolerance.

Non-rocking

Correctly installed, Gatic covers will be non-rocking and sealed against ingress of road dirt and other detritus.

Gas, Air & Watertight

A film of graphite grease between the contact faces of Gatic units provides a gas and air & water tight seal, and a watertight joint under normal rainwater conditions.

Pressure-tight

Standard single units with locking screws and holding-down bolts are available to withstand upward pressure. Consult our technical department for details.

Easy removal/replacement

The machined underside seating face of Gatic covers allows the sliding out of covers for easy removal or replacement

Operator control

Jack screw operating keys locate positively and securely into Gatic covers and are a necessary tool if the inherent cover seal is to be broken effectively and to allow operator maximum control during operation.

Secure and vandal resistant

Covers are designed to prevent tampering and unauthorised removal. Gatic covers cannot be removed without the correct lifting key, so unauthorised removal is virtually impossible. Locking bolts can be fitted to Gatic cover as an additional security feature.

Ventilation

Ventilation can be provided with four 25mm diameter ventilation tubes in recessed covers.

Locking/ventilated

Vibration resistant

For covers in high density traffic conditions, we recommend the use of a factory-fitted vibration-resistant locking system to the recessed covers.

Closed keyways

Gatic cover keyways are closed and fitted with plastic plugs to prevent them from blocking up

Features and benefits

Loadings

All Gatic covers will withstand test load and maximum permanent set criteria specified in BS EN 124 for each loading category. Covers are load tested in their as service condition.

Rigidity

The robust and rigid design of Gatic’s frames, closely toleranced covers and frames creates a rigid composite structure.

Secure support

The clear opening width between supporting frames are at least 10mm greater than the pit/chamber design to allow for minor deviations in pit construction dimensions.

Beam wallbox

Supporting beams in Gatic Multispan units are easily removed with appropriate lifting equipment for access to the total chamber area. Beam wallboxes do not project into the chamber opening.

Finishes

Units are painted with a matt black paint that acts as a temporary protection during transit. Removable supporting steelwork is galvanised to BS EN ISO 1461. For special applications, cover & frame components can be galvanised to BS-EN ISO 1461.

Installation

Consignments of Gatic units are accompanied by comprehensive installation instructions.

Levelling bolts

All frame bars and wallboxes are fitted with bolts to assist in the levelling of the unit during installation.

Security grids

Hinged lift-out galvanised steel security grids (with padlock facility if required) can be incorporated into Gatic units.

Environmental commitment

Responsibility towards the environment is our primary concern. Our customers often now demand products that are made from recycled and recyclable materials, supplied by companies with robust environmental policies to reduce the environmental impact of their projects for future generations.

To meet these requirements we have an integrated Quality (BS EN ISO 9001) and Environmental (BS EN ISO 14001) Management System which encompasses the design, manufacture and management systems within the company and ensures our commitment to continuous environmental improvements regarding the manufacture and design of all our products in the following ways:

Minimise environmental impact

• Commit organisational resources to energy management

Reduce energy costs

Give high priority to energy efficient investments

Consider life cycle energy costs for all new projects

Minimise CO2 emissions year on year

Use energy from sustainable resources wherever possible

To achieve these goals we have put in place the necessary systems and controls to meet demanding environmental targets and to make sure that these are maintained for the future benefit of the environment and our customers alike.

Gatic services

Gatic offers a full support service to specifiers and contractors, including Computer Aided Design. AutoCAD compatible details of all Gatic products are available. Please consult our technical department for assistance.

In view of our commitment to product improvement, we reserve the right to alter designs without notice. Design changes will not adversely affect the performance or loading capability of our products.

Specialist & Bespoke

Customise standard covers, design something totally different. We can offer a wide range of bespoke options to suit your projects needs.

Bespoke Products & Solutions

Your project, our products

Since 1928 Gatic has been providing high quality covers to suit all requirements. We are able to offer a range of bespoke products that include: Hinged security grids, Alternative finish galvanised covers, Hinged hydrant covers, Solid top circular covers, Single gratings and frames, Trench gratings and frames, Plug covers & Bespoke branding and RFID Tags.

Bespoke Products & Solutions

Bespoke branding

Your brand. Your business. Your access covers.

Please speak with your local Gatic Area Sales manager or Gatic technical if your project requires bespoke branding.

RFID / ID Tags

An embedded RFID Tag in Gatic Access Covers allows for the client to improve their asset management and maintenance regimes. By quickly scanning a cover you can identify the asset number and review and record data against a linked database including asset types, location, maintenance and health and safety requirements.

Keeping track of your assets is important for financial tracking, and maintenance schedules.

Please speak with your local Gatic Area Sales manager or speak with Gatic technical if your project requires RFID/ID Tags

Hinged security grids

Gatic covers can be supplied with mild steel galvanised security grids when required. Once the cover is removed, the security grid can be hinged to the vertical position where it will lock safely in place. Security grids can be locked in a closed position by using customer-supplied padlocks.

Hinged security grills can be fitted to all gatic units from single covers to multispan.

Alternative finish galvanised covers and gratings

Gatic covers and gratings are supplied painted with black paint as standard. This acts as temporary protection during transit. Where additional protection is required, Gatic ductile iron covers can be supplied galvanised to BS EN ISO 1461. Refer to Gatic technical department for more information.

Bespoke Products & Solutions

Plug Covers

Loading groups up to C250

Small insert plug covers can be fitted to a wide range of cover sizes. Maximum 300 x 300 plug clear opening. Refer to Gatic technical department for more information.

Holes and cut-outs

Holes and cut-outs can be provided in covers to allow for the positioning of valves, pipes and cables. These can be square or circular, loading suitable for C250.

Upstands can be fitted to prevent the ingress of water around pipes and valves.

Specialist Additions

Special Covers

Gatic has the flexibility to adapt our products to special applications e.g. non-standard length covers can be supplied if there are restrictions in the trench dimensions, covers and frames can be manufactured to suit a radius. If individual access is required to a valve beneath a cover, then, depending on the size and loading, a plug cover may be incorporated into the main cover.

Over Hanging WallBox

Where a rebate is not available in the concrete surround to accommodate a standard beam housing box, an overhanging system is available that hangs from the concrete wall and is bolted to the face of the pit.

Where a concrete rebate is not available for the side frames to support a multi-part unit, a removable kerb beam arrangement is available to provide support to the covers and frames.

Junctions

Where trenches change direction and uninterrupted coverage is required, right angle, tee and special angle junctions can be incorporated into the cover layout. Depending on the span of the trench and the loading, a removable support beam may be included.

Underside of the Access Cover

Gratings

Areas of exceptionally high wheel loads, aircraft hardstandings, taxiways at civil airports, container ports and dockyards, designed for concrete infill

Single Gratings and Frames

Technical diagrams

Continuous Gratings and Frames

Gatic gratings and frames can be manufactured in continuous runs. A layout drawing with enquiries will enable our technical department to design an appropriate layout of gratings.

All Type DRG/100 gratings and frames available in 1000mm lengths except 1000mm c/o span for E600/F900 loadings which are 500mm lengths

Technical diagrams

F900

Areas of exceptionally high wheel loads, aircraft hardstandings, taxiways at civil airports, container ports and dockyards, designed for concrete infill

Loading group F900 introduction

Areas of exceptionally high wheel loads, aircraft hard-standings, taxiways at civil airports, container ports and dockyards, designed for concrete infill.

35 tonne slow moving wheel load, test load 900kN – Suitable for:

Aircraft hard-standings and taxiways at civil airports

Container ports and dockyards where individual wheel loadings of up to 35 tonnes may be encountered

F900 assemblies are available with a choice of cover designs – recessed or solid top.

Solid top

Solid top cover types are lighter in weight than recessed covers, and feature an anti-slip surface. Solid top covers are denoted by the code Type RSF depicted in section on the following pages.

Recessed for concrete infill

Recessed covers are available in a choice of designs designated by a ‘Type’ reference. F900 recessed covers are available as Type DLF, DM, RRF, DM/F. Section drawings of the different recessed cover types are shown on the following pages.

To prevent movement of covers in high traffic conditions, we recommend the use of a factory fitted vibrationresistant locking system. Can be fitted to recessed covers only.

Single Recessed Covers and Frames

Single Solid Covers and Frames

Technical Diagrams

Recessed Duct Covers and Frames

Solid Top Duct Covers and Frames

* Indicates standard sizes not available. The number shown indicates the quantity of cover parts. Other spans of covers are available upon request. Contact gatictech@alumascwms.co.uk for further information.

Technical Diagrams

s p e c o h e a d e q u a c y o h e d e s g n p o v d e d by G A T C s h e D e s g n e s e s p o n b o e n s u e h a h e d a a h a s b e n c o e c y e p e e d G A T C a c c e p n o a b o n a d e q u a e o n a c c u a e d e s g n s b a e d o n m e d o r a s e n o m a o n s u p p e d by h e D e s g n e o m s n e p e a o n o h d a a u p p e d F o r h e a v o d a n c e o d o u b d e s g n s p r o v d d by G A T C p o o a n o d e b e n g p a c e d a e o u s r a e p u p o e s o n a n d h o u d n o b

Continuous Recessed Trench Covers & Frames

Note: Other spans of covers are available upon request. Contact gatictech@alumascwms.co.uk for further information.

Technical Diagrams

Gatic covers can be formed to make continuous trenches or layouts providing total access to services below.

Construction drawings are required so that Gatic cover layout drawings can be prepared.

Continuous Solid Trench Covers & Frames

Standard Solid top covers are supplied in straight runs. Junctions and splays can be achieved by the inclusion of localised recessed covers. Refer to our technical department for more information.

Technical Diagrams

Multispan Covers and Frames

Product Selection

Refer to the table to identify which cover and beam configuration you require against pit clear opening length (L) and pit clear opening span (S). All dimensions are in millimetres. Gatic can achieve sizes beyond the extent of those listed in the table - please speak to the Gatic technical team for further details.

Note: All dimensions shown in red are made up using 700 x 700 solid top covers. Not compatible with other lengths

Multispan Covers and Frames

Beam Size

The required beam size for Multispan covers is dependent on the pit clear opening length and the loading group.

Support beam size chart

Note: Removable support beams are supplied by Gatic. For clear opening lengths longer than

Technical Diagrams

The table shows maximum beam length against beam size. The removable support beams are supplied by Gatic.

The table also indicates dimensions of the beam wallbox and rebate to suit different beam sizes. See also the accompanying section details.

Assist Lift Hinged Covers

Assist lift covers facilitate one person opening of a F900 load rated ductile iron cover either as an individual cover or as part of a multi cover arrangement. The modular nature of the Gatic system of removable covers is designed to provide sealed, uninterrupted access to the services below whether as a single cover, duct or multispan arrangement with removable support beams.

A removable system for virtually any size of pit configuration and loading can be developed. Gatic covers are designed to protect and give access to a diverse range of underground services. Examples include, manhole/pump/valve/transformer chambers, pipe and cable service trenches, cable draw pits, lighting, fuel and fire hydrant pits, machinery/plant access chambers, tunnel shaft access chambers, combined sewer/overflow chambers and storm tie down pits.

Gatic specialise in the design of covers for airports, container ports, dockyards and industrial areas where extreme wheel loadings from aircraft, container carrying equipment and other vehicles may been encountered. Covers are available with solid cast iron tops. Assist lift covers can be incorporated into larger covers for other loading categories upon request.

Gatic stand-alone AssistLift covers are available in a variety of configurations.

Gatic solid top covers and frames with one AssistLift covers at the reverse end of the unit. These can be supplied in standard units as per the sizes shown on the chart below. Longer lengths are available. Number of cover parts are shown in the boxes under the standard pit clear opening length (L)

Support frame between covers is removable to give uninterrupted access to the chamber below

Gatic are usually able to offer assit lift on all load classes and covers within this brochure - installation dependant.

Please speak to Gatic technical for the range of options available for your project.

Technical Diagrams

Two-part solid-top coverType SSA.
Three-part solid-top cover - Type SSA
Single, solid-top AssistLift cover - Type SSA

Assist Lift Hinged Covers

Gatic Type SFA Solid Top end hinged covers give complete access to the chamber opening when used as a single cover. When integrated as part of a duct or multispan arrangement, they provide either one person access to a chamber above a ladder or access to equipment that would need to be inspected/operated on a regularlar basis. Covers are available for 900 span only.

Single AssistLift cover - Type SFA

Two-part solid-top cover - Type RSF with end AssistLift cover - Type SFA

Four-part solid-top cover - Type RSF with end AssistLift cover - Type SFA

Gatic solid top covers and frames with one AssistLift covers at the reverse end of the unit. These can be supplied in standard units as per the sizes show on the chart below. Longer lengths are available.

Number of cover parts are show in the boxes under the standard pit clear opening length (L)

Technical Diagrams

Assist Lift Multispan Covers & Frames

Gatic multispan access covers incorporate removable support beams so that much larger pit openings can be covered. The table shows standard multispan units that can have an AssistLift cover installed at the back end of the unit. In some cases, more than one AssistLift cover can be fitted

These heavy duty covers are specifically designed for airports, container ports and docks where abnormal wheel loadings from heavy vehicles are envisages

Assist Lift covers can also be fitted to the front end of a unit providing it is in a different span to an Assist Lift cover at the back end.

For further assistance specifying your Assist Lift requirement within a multispan arrangement,please contact our technical team

Solid Top Assist Lift Multispan Covers & Frames

Beam Size

The required beam size for Multispan covers is dependent on the pit clear opening length and the loading group.

The table shows maximum beam length against beam size. The removable support beams are supplied by Gatic.

The table also indicates dimensions of the beam wallbox and rebate to suit different beam sizes. See also the accompanying section details.

Technical Diagrams

LFA

Materials

The components of Gatic LFA Assist lift covers are manufactured from the following materials: Ductile iron to BS EN 1563. M-Struts® and other parts in stainless steel grade 304.

Safe Lifting

Gatic LFA Assist lift covers have been designed to be lifted and closed by a single operator. The maximum lifting and closing force will be approximately 25kg.

M-Struts®

M-Struts® are designed for demanding environments and provide a maintenance free alternative to conventional gas struts. M-Struts® are made of grade 304 stainless steel. Unlike gas and pneumatic models, M-Struts® have no internal gases to leak or seals to fail in extreme conditions.

Loadings

Gatic LFA Assist lift covers will withstand the test load, deflection

and maximum deformation criteria specified in BS EN 124 for load category F900. Gatic LFA Assist lift covers are suitable for installation in areas subject to slow moving traffic.

Features

• Automatic engaging mechanism to prevent accidental closure.

• Slam latch.

• Locking feature – single Allen key required for opening.

• Integrated lifting handle.

• For sealed Assist lift options please see page 28 - 35

Solid Top Circular Covers

Suitable up to F900

Diagrams

Hinged Hydrant Covers

Hydrant lids can be supplied as single covers or set into a larger cover. This provides localised access without removing the larger cover.

Hydrants fitted within larger covers are 400 x 300 clear opening, centrally positioned. Can be incorporated into Multi-part Cover Systems.

Single and Double Covers Fitted with 400 x 300 Hinged Hydrant

Hydrant Covers

Technical Diagrams

Double hydrant
Single and double units - including a 400 x 300 hinged hydrant cover centrally positioned in each cover. If only one cover is required as a hydrant, please contact our technical department.

E600

Areas of high wheel loads, some aircraft hardstandings, dockyards and other areas where heavy duty plant and vehicles may be used

Loading Group E600 Introduction

Areas of high wheel loads, some aircraft hard-standings, dockyards and other areas where heavy duty plant and vehicles may be used

20 tonne wheel load, test load 600kN –

Suitable for:

• Some airfield pavements dockyards

• Dockyards

• Other areas where single slow moving wheel loads up to 20 tonne may be encountered

E600 assemblies are available with a choice of cover designs – recessed or solid top.

Product Ranges

Solid top

Solid top cover types are lighter in weight than recessed covers, and feature an anti-slip surface.

Solid top covers are denoted by the code Type RSF depicted in section on the following pages.

Recessed for concrete infill

Recessed covers are available in a choice of designs designated by a ‘Type’ reference. E600 recessed covers are available as Type DLF, DM, DM/F, RRF. Section drawings of the different recessed cover types are shown on the following pages.

To prevent movement of covers in high traffic conditions, we recommend the use of a factory fitted vibrationresistant locking system. Can be fitted to recessed covers only. See page 14.

To prevent movement of covers in high traffic conditions, we recommend the use of a factory fitted vibration-resistant locking system. These can be fitted to recessed covers only.

If you are uncertain as to the adequacy of covers conforming to a particular loading, we recommend specifying covers in a higher loading group. For example, if in doubt about covers in Loading Group E600, we recommend you specify covers in Loading Group F900.

Single covers and frames
Duct covers and frames
Continuous trench covers and frames
covers and frames

Single Recessed Covers and Frames

Technical Diagrams

Single Solid Top Covers and Frames

Technical Diagrams

Duct Recessed Covers and Frames

Technical Diagrams

Duct Solid Top Covers and Frames

Continuous Recessed Covers and Frames

Gatic covers can be formed to make continuous trenches or layouts providing total access to services below.

Construction drawings are required so that Gatic cover layout drawings can be prepared.

For type DM/F refer to our technical department

Technical Diagram

Continuous Solid Top Covers and Frames

Standard Solid top covers are supplied in straight runs. Junctions and splays can be achieved by the inclusion of localised recessed covers. Refer to our technical department for more information.

For high density traffic conditions refer to page 14.

Rebates

Technical Diagrams

Multispan Covers and Frames

Product Selection

Refer to the table to identify which cover and beam configuration you require against pit clear opening length (L) and pit clear opening span (S). All dimensions are in millimetres Gatic can achieve sizes beyond the extent of those listed in the table - please speak to the Gatic technical team for further details..

Note: All dimensions shown in red are made up using 700 x 700 solid top covers only.

Multispan Covers and Frames

Beam Size

The required beam size for Multispan covers is dependent on the pit clear opening length and the loading group.

The table shows maximum beam length against beam size. The removable support beams are supplied by Gatic.

The table also indicates dimensions of the beam wallbox and rebate to suit different beam sizes.

See also the accompanying section details.

Technical Diagrams

Support beam size chart

Solid Top Circular Covers

Suitable for up to F900 loading.

Technical Diagrams

D400

Power stations, Carriageways, hard shoulders, and parking areas for all types of vehicle

Loading Group D400 Introduction

Power stations, Carriageways, Data Centres, and parking areas for all types of vehicle

11.5 tonne wheel load, test load

400kN – Suitable for:

Power stations

Carriageways

Data Centres

Parking areas for all types of vehicles

D400 assemblies are available with a choice of cover designs – recessed or solid top.

Solid top

Solid top cover types are lighter in weight than recessed covers, and feature an anti-slip surface. Solid top covers are denoted by the code Type RSD depicted in section on the following pages.

Recessed for concrete infill

Recessed covers are available in a choice of designs designated by a ‘Type’ reference. D400 recessed covers are available as Type DLF, DM/F, RRD. Section drawings of the different recessed cover types are shown on the following pages.

To prevent movement of covers in high traffic conditions, we recommend the use of a factory fitted vibrationresistant locking system. Can be fitted to recessed covers only. See page 14.

Gatic Pave

Gatic Pave is a comprehensive system of single, duct and multi span access covers and frames for use in paved areas where an aesthetic finish is required in environments up to D400 loading.

Product Ranges

Single covers and frames
Duct covers and frames
Pave
Continuous trench covers and frames
Multispan covers and frames

Single Recessed Covers and Frames

Technical Diagrams

Single Solid Top Covers and Frames

T C a n d a e n o o b e d s c o s e d o a n e d c o p e d o r u s e d o m a n u f a c u n g o t e n d e n g o o r a n y o t

Duct Recessed Covers and Frames

Duct Solid Top Covers and Frames

Continuous Recessed Trench Covers and Frames

Gatic covers can be formed to make continuous trenches or layouts providing total access to services below.

Construction drawings are required so that Gatic cover layout drawings can be prepared.

Technical Diagrams

Continuous Solid Top Trench Covers and Frames

Standard solid top covers are supplied in straight runs. Junctions and splays can be achieved by the inclusion of localised recessed covers. Refer to our technical department for more information.

Rebates to

during

Diagrams

Multispan covers and frames

Product Selection

Refer to the table to identify which cover and beam configuration you require against pit clear opening length (L) and pit clear opening span (S). All dimensions are in millimetres. Gatic can achieve sizes beyond the extent of those listed in the tableplease speak to the Gatic technical team for further details.

Note: For other pit clear opening sizes please refer to our technical department

Multispan Covers and Frames

Beam Size

The required beam size for Multispan covers is dependent on the pit clear opening length and the loading group.

The table shows maximum beam length against beam size. The removable support beams are supplied by Gatic.

The table also indicates dimensions of the beam wallbox and rebate to suit different beam sizes.

See also the accompanying section details.

Technical Diagrams

Solid Top Circular Covers

Each Circular cover is supplied with two locking bolts as standard.

To specify, state

1. Loading group

2. Pit clear opening size

3. Cover type

Suitable for up to F900 loading.

Technical Diagrams

Pave

Gatic Pave is a comprehensive system of single, duct and multi span access covers and frames for use in paved areas where an aesthetic finish is required in environments up to D400 loading.

Environmental commitment:

Responsibility towards the environment is our primary concern. Our customers often now demand products that are made from recycled and recyclable materials, supplied by companies with robust environmental policies to reduce the environmental impact of their projects for future generations.

To meet these requirements we have an integrated Quality (BS EN ISO 9001) and Environmental (BS EN ISO 14001) Management System which encompasses the design, manufacture and management systems within the company and ensures our commitment to continuous environmental improvements regarding the manufacture and design of all our products in the following ways:

• Minimise environmental impact

• Commit organisational resources to energy management

• Reduce energy costs

• Give high priority to energy efficient investments

• Consider life cycle energy costs for all new projects

• Minimise C02 emissions year on year

• Use energy from sustainable resources wherever possible

To achieve these goals we have put in place the necessary systems and controls to meet demanding environmental targets and to make sure that these are maintained for the future benefit of the environment and our customers alike.

Lifting Keys

Gatic recommends that due to their weight with paviour infill, when Pave covers are removed they are lifted using Gatic’s Mechanical lifting keys.

A Mechanical lifting key is inserted into each of the four keyways found on all Gatic

Gatic services:

Gatic offers a full support service to specifiers and contractors, including Computer Aided Design. AutoCAD compatible details of all Gatic products are available. Please consult our technical department for assistance.

In view of our commitment to product improvement, we reserve the right to alter designs without notice. Design changes will not adversely affect the performance or loading capability of our products.

Pave covers which are designed and tested for use wih cranes and other mechanical devices

Full operating and installation instructions are available from Gatic.

Suitable for 11.5 tonne slow moving pneumatic wheel load. Cover test load - 400kN

Pave covers can be supplied to cover ducts or trenches as straight runs.

The number shown indicates the quantity of cover parts. Other cover sizes may be available. Please refer to our technical department.

Technical Diagrams

Refer to the table to identify which cover and beam configuration you require against pit clear opening lenght (L) and pit clear opening span (S). All dimensions are in millimetres.

Note: For other pit clear opening sizes please refer to our technical department

Beam Size

The required beam size for Multispan covers is dependent on the pit clear opening length and the loading group.

Support beam size chart

The table shows maximum beam length against beam size. The removable support beams are supplied by Gatic.

The table also indicates dimensions of the beam wallbox and rebate to suit different beam sizes. See also the accompanying

Gatic Pave

C250

For roads carrying relatively slow-moving traffic e.g. minor residential roads, cul-de-sacs, pedestrian precincts, yards, etc

Loading Group C250 Introduction

For roads carrying relatively slow-moving traffic eg, minor residential roads, cul-de-sacs, pedestrian precincts, yards, etc

5 tonne slow moving wheel load, test load 250kN – Suitable for:

• Minor residential road

• Cul-de-sacs

• Pedestrian precincts

• Yards, etc

Solid top

Solid top cover types are lighter in weight than recessed covers, and feature an anti-slip surface. Solid top covers are denoted by the code Type DLS and RSD depicted in section on the following pages.

Recessed for concrete infill

Recessed covers are available in a choice of designs designated by a ‘Type’ reference. C250 recessed covers are available as Type DLF, DM and DM/F. Section drawings of the different recessed cover types are shown on the following pages.

To prevent movement of covers in high traffic conditions, we recommend the use of a factory fitted vibrationresistant locking system. Can be fitted to recessed covers only.

Product Ranges

For Pave infill options for C250, please navigate to Page 58

Single covers and frames
Duct covers and frames
Pave Infill
Continuous trench covers and frames
Multispan covers and frames

Single Recessed Covers and Frames

Technical Diagrams

Single Solid Top Covers and Frames

Technical Diagrams

Duct Recessed Covers & Frames

Diagrams

Duct Solid Top Covers and Frames

Continuous Recessed Trench Cover and Frames

Gatic covers can be formed to make continuous trenches or layouts providing total access to services below.

Construction drawings are required so that Gatic cover layout drawings can be prepared.

Note:

Technical Diagrams

Continuous Solid Top Trench Cover and Frames

Standard solid top covers are supplied in straight runs. Junctions and splays can be achieved by the inclusion of localised recessed covers. Refer to our technical department for more information.

Multispan Covers & Frames

Product Selection

Refer to the table to identify which cover and beam configuration you require against pit clear opening length (L) and pit clear opening span (S). All dimensions are in millimetres. Gatic can achieve sizes beyond the extent of those listed in the table - please speak to the Gatic technical team for further details.

Multispan Covers & Frames

Beam Size

The required beam size for Multispan covers is dependent on the pit clear opening length and the loading group.

Support beam size chart

Note:

Technical Diagrams

The table shows maximum beam length against beam size. The removable support beams are supplied by Gatic.

The table also indicates dimensions of the beam wallbox and rebate to suit different beam sizes. See also the accompanying section details.

B125

Footways, pedestrian areas, car parks, driveways and internal floors

Introduction

Footways, pedestrian areas, car parks, driveways and internal floors

3 tonne wheel load, test load 125kN –Suitable for:

• Footways

• Pedestrian areas

• Car parks

• Driveways

• Internal floors

B125 assemblies are available with a choice of cover designs – recessed or solid top.

Solid top

Solid top cover types are lighter in weight than recessed covers, and feature an anti-slip surface. Solid top covers are denoted by the code Type DLS and RSD depicted in section on the following pages.

Product Ranges

Recessed for concrete infill

Recessed covers are available in a choice of designs designated by a ‘Type’ reference. B125 recessed covers are available as Type DL, DLF and DM/F. Section drawings of the different recessed cover types are shown on the following pages.

To prevent movement of covers in high traffic conditions, we recommend the use of a factory fitted vibrationresistant locking system. Can be fitted to recessed covers only.

Single covers and frames
Duct covers and frames
Continuous trench covers and frames
Multispan covers and frames

Single Recessed Covers and Frames

Technical Diagrams

Single Solid Top Covers and Frames

Duct Recessed Covers and Frames

Technical Diagrams

Duct Solid Top Covers and Frames

Continuous Recessed Trench Covers and

Technical Diagrams

Continuous Solid Top Trench Covers and Frames

Multispan Covers & Frames

Product Selection

Refer to the table to identify which cover and beam configuration you require against pit clear opening length (L) and pit clear opening span (S). All dimensions are in millimetres. Gatic can achieve sizes beyond the extent of those listed in the table - please speak to the Gatic technical team for further details.

Multispan Covers & Frames

Beam Size

The required beam size for Multispan covers is dependent on the pit clear opening length and the loading group.

The table shows maximum beam length against beam size. The removable support beams are supplied by Gatic.

The table also indicates dimensions of the beam wallbox and rebate to suit different beam sizes. See also the accompanying section details.

Support beam size chart

Lifting keys for covers and frames

Long handled lifting keys - not for use with mechanical or crane lifting

Method of removing Gatic covers using manual lifting keys.

Consult technical department for full details.

Mechanical lifting keys

Mechanical lifting keys are designed and tested for use with crane and other mechanical devices.

Consult technical department for full details.

Installation and Maintenance Guide - How to use Lifting Keys

Please refer to our 'Access Cover Installation and Maintenance Guide' for detailed instructions on how to use lifting keys.

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