VIPER Wire Rope Lubricator for Unitor™ MINI MK 3 SEAL - CLEANER - SELECTION GUIDE
SEAL SELECTION
SCRAPER SELECTION
Viper seals for Unitor™ are designed to have some interference with the rope, depending on its size and type, with an interference of up to 3mm allowable for standard 6 & 8 strand ropes. For compact, non-rotating or wireline type ropes which do not have valleys, a maximum interference of 1mm is recommended as these ropes do not allow for the same amount of seal deflection within the collar.
Viper recommends that wire ropes be physically measured prior to ordering seals and scrapers as ropes in service may vary in size. Scrapers are supplied slightly larger than the actual wire rope size to allow for rope flexing.
ROPE CLEANER SELECTION Viper Rope Cleaners for Unitor™ enable the removal of contamination or builtup old lubricant from the wire rope prior to lubrication, improving the effectiveness of the lubrication process via the Viper WRL. For certain types of wire ropes where the standard Viper Rope Cleaner is not suitable, the Viper ‘Smooth Bore’ rope cleaner is available. The Smooth Bore Rope Cleaner would typically be used on those ropes with a large number of outer strands, some non-rotational ropes, ROV cables, etc., where the valleys between the strands are minimal and do not readily facilitate a standard Viper Rope Cleaner.
IMPORTANT - BEFORE YOU ORDER
2.
PHYSICALLY MEASURE ROPES It is critical that all ropes be physically measured prior to selecting and ordering the VRC, as ropes size may vary in service.
CORRECT
INCORRECT
DETERMINE LAY OF ROPES
Right Lay Clockwise Rotation
Left Lay Counter Clockwise Rotation
3.
DETERMINE THE STRAND TYPE
6 Strand
8 Strand
Armoured or Multi Strand
The following tables allow for the quick and easy selection of the correct Roper Cleaner to suit your specific requirements.
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Wilhelmsen Ships Service AS Tel: +47 67 58 40 00 | wss.info@wilhelmsen.com | wilhelmsen.com
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