• Top Entry Design for In-Line Maintenance & Repair
• Enormous Savings in Labor, Materials & Downtime
Camseal® Metal-Seated, CartridgeStyle, Top Entry, Zero Leakage Ball
Valves save significant time and money on installation, maintenance, replacement and downtime.
DESIGN FEATURES
Conval Camseal Ball Valve Provides Zero Leakage
ZeroBodyLeakage: The body/bonnet bolting for the top entry design is not susceptible to pipeline stresses – precluding the potential for leakage.
ZeroSeatLeakage: Conval’s Camseal has been type-tested using high pressure Nitrogen gas, achieving zero bubbles in four minutes. The result is industry leading performance with every valve and the longest in-service life compared to competitive brands.
ZeroStemSealLeakage: Conval’s exclusive Integral Gland Wrench concentrically loads the stem packing without tools, eliminating stem leaks and extending packing life. Live loading is available as an option.
Cartridge-style Top Entry
With top entry access, maintenance and replacement of the cartridge internals are very convenient, with no effect on existing piping and welds.
STANDARD SIZES
1/2” through 4” Top Entry
SW, BW, FNPT and a variety of ends
TDP-1-2013 compliant and full port valves available
PRESSURE RATING
ASME Class up to 4500
STANDARD MATERIALS
Carbon Steel SA-105
Stainless Steel SA-182-F316/F316L
Alloy SA-182-F22 CI.3, SA-182-F91
Other materials available upon request
STANDARD ACCESSORIES
ISO-5211 Integral Mounting Pad
Actuators - Electric, Pneumatic or Hydraulic, Gear Operator
Robust Stem-Ball Engagement
Reliable, accurate ball alignment is achieved due to the robust engagement between the one-piece stem and the ball.
Superior Bearing Support
Superior bearing support of the blowout-proof stem ensures proper axial alignment and Zero Seat Leakage even on actuated valves.
Stem-Ball Alignment
The easy to read Position Indicator Disc (patent pending) increases the visibility and accuracy of stem and ball alignment into the valve seat. This is especially important when adding an actuator to a valve or resetting valve actuation. It is also critical in severe applications such as steam where positive, sustainable shutoff is critical and even slight misalignments will compromise the ball/seat sealing band. This indicator eliminates the need for costly and multiple manufacturing features that have traditionally been used with less accuracy.
The indicator is self-securing to the stem; no set screws are required.
In-line Servicing
In-line renewability can be accomplished in 30 minutes and restores Zero Leakage performance.
Integral Mounting Pad
An ISO-5211 integral mounting pad facilitates error-free, air, motor and gear operator actuation due to superior rigidity, precise alignment and a fully-guided stem bearing system. Lockout capability is standard.
Two-Year Warranty
Conval is committed to unsurpassed quality. We are so confident of the quality of our product, that we offer a two-year warranty.
Plant managers, engineers and maintenance personnel appreciate these practical Camseal benefits.
+ Single forged body: The top entry, single forged body design effectively eliminates the potential for leakage as a function of pipe line stresses, unlike two-piece, end-entry or side-entry designs.
+ Patented cartridge design: The cartridge design allows for in-line welding and stress relieving without concern for seat distortion and eventual leakage.
+ Top entry design: The top entry design allows for rebuilding the valve to as-new condition without any welding or stress relieving, typically within 30 minutes.
+ 5-ring chevron style packing set: The robust 5-ring packing set allows for trouble-free performance, longer packing life, and zero emissions.
+ Integral gland wrench (IGW): The IGW allows for easy packing adjustments and locking the packing in place, so system vibration cannot loosen the packing gland (concentric 360 degree packing load). Live-loaded packing option is also available.
+ Stem-ball alignment: The increased visibility of an easy-to-read stem and ball alignment indicator is an additional benefit to the end user that ensures accurate instrumentation adjustment during automation.
+ Proprietary coating and finishing: The advanced coating and finishing methods allow for longer, more reliable performance through thermal cycles, operational cycles and erosive system fluids.
+ ISO-5211 configuration and bearing guided stem: The ISO-5211 mounting configuration and bearing-guided stem assure precise actuation alignment and minimize side loading of the stem, leading to extended packing life and superior repeatability. VisitConval.comtoviewourvideotoday!
Add it all up, and you’ve got a superior ball valve for the world’s most demanding high-pressure, high-temperature applications.
249−711− 586−− 261−748− 621−− 274−786− 655−− 287−823− 689−− 299−859− 724−− 312−897− 758−− 325−934− 793−− 338−972− These are approximations.
0.5
0.75
CAMSEAL® BALL VALVE Cv VALUES
SCH80/XS 0.546 5E 38
SCH160 0.464 5E 28
XXS 0.252 5E 16
XXS 0.252 7E 16
SCH80/XS 0.742 5E 29
SCH80/XS 0.742 5F 61
SCH160 0.612 5E 42
SCH160 0.612 5F 52
XXS 0.434 5E 28
XXS 0.434 5F 37
XXS 0.434 7E 28
1 SCH80/XS 0.957 5E 23
SCH80/XS 0.957 5F 23
SCH160 0.815 5E 32
SCH160 0.815 5F 48
XXS 0.599 5E 41
XXS 0.599 5F 51
XXS 0.599 7E 41
1.25
SCH80/XS 1.218 5E 14
SCH80/XS 1.218 5F 20
SCH160 1.160 5E 17
SCH160 1.160 5F 20
XXS 0.896 5E 26
XXS 0.896 5F 30 XXS 0.896 7E 26
1.5 SCH80/XS 1.500 5E 12
SCH80/XS 1.500 5F 18
SCH160 1.338 5E 14
SCH160 1.338 5F 19 XXS 1.100 5E 18
1.100 5F 21
1.100 7E 18
1.100 9H 97
1.771 7H
3.438 9J
3.438
CAMSEAL® BALL VALVES
DESIGN VALIDATION AND COMPARISON TESTING
The Camseal Ball Valve has been subjected to computer-aided analysis, laboratory and field testing during its development. Not only were benchmarks established against which performance was measured, but evaluation valves manufactured by competitors were also tested alongside the Camseal Ball Valve. A summary of the design validation and comparison testing is given below.
• Finite Element Analysis was used to evaluate all strains and stresses associated with the Camseal Ball Valve. Though the design meets ASME B16.34, Conval’s approach verified pressure boundary integrity, including all body and bonnet sections that are not directly defined by the code.
• Thermal Modeling facilitated the design process by pictorially displaying thermal parameters and heat transfer to the ISO-5211 Mounting Pad. Subsequent lab and field testing validated the design and the model.
• Computational Fluid Dynamics flow modeling software was used to streamline internal waterway sections and maximize Cv and flow efficiency.
• Sophisticated coating and finishing techniques were proven through nitrogen leak testing. Zero bubble leak performance was subsequently verified during numerous positive and negative thermal gradients and at elevated temperatures above 1100°F and again at 70°F.
• Competitive valves subjected to the same thermal cycling leaked badly and continued to leak badly once back at room temperature.
• In addition to in-house lab and field testing, steam blow-down tests at a high-pressure steam laboratory were performed. In total, over 100 thermal cycles, 100 blow-down cycles and several hundred operational cycles were logged with minimal degradation to the original Zero-Leakage integrity.
Every valve undergoes pressure testing per ASME B16.34, in addition to special nitrogen gas leak testing of the cartridge assembly.
All valves are manufactured under a sophisticated Quality Management System covered by the latest versions of: ISO-9000, 10CFR50, Appendix B nuclear, ASME N- and NPT-Stamp nuclear, CE marking per the European Pressure Equipment Directive (PED), and Canadian Registration Number.
1.Belleville Spring Washer
2.Thrust Washer
3.Cams
4.Cartridge Housing
5.Upstream Belleville
6.Upstream Seat
7.Ball
8.Downstream Seat
9.Downstream Seal
Fire-safe Camseal valves are available for CNG, LNG, refining and chemical applications where fire safety is a major concern.
Camseal ball valves are certified for fire-safe service in ½” through 4” sizes, to both API 607 and 6FA; for all pressure classes 2500# and lower; for low-alloy steel body materials such as A105 and F22, and austenitic body materials such as 316 stainless steel.
The Conval Story
In 1962, Mr. Chester Siver completed designs for a revolutionary line of high-pressure, forged steel valves. Hamilton Standard (now UTC Aerospace Systems), a division of United Technologies Corporation, was asked to use their then-new Electron Beam Welding technology for joining of parts into valves for subassemblies. Hamilton Standard became intrigued with the valve as an ideal application of the Electron Beam Welding technique, and negotiated a contract for the rights to manufacture and sell the valve. Mr. Siver served as manager of the valve project.
The first CLAMPSEAL® valves were introduced to the market by Hamilton Standard in 1964. However, in the mid-1960’s, growing demand for the firm’s popular aerospace products forced Hamilton Standard to make the decision to abandon its industrial products. The rights to the CLAMPSEAL valve reverted back to Mr. Siver. Since CLAMPSEAL valves were born in Connecticut, Mr. Siver founded “Conval” (short for Connecticut Valve) in 1967. Today, the valves are still manufactured in Connecticut, a state with a longstanding reputation for technological innovation and manufacturing excellence.
Conval is a leader in valves for the world’s most demanding applications. Our global team of experts can help to meet your most challenging needs. We invite you to contact us today.
High-pressure, high-temperature ball, bellows seal, check, gate, globe, throttling, and urea service valves for the world’s most demanding applications.
