Claron Polyseal Single Acting Rod Wiper Seal PMW

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Claron Style PMW metal cased Rod wiper is designed to remove potential system contaminents from a reciprocating rod during the negative stroke. It is classified as a medium to heavy duty rod wiper/scraper. The wiper is precision moulded in 98o Shore Polyurethane with an accurately machined lip. The high modulus (stiffness) of this material allows the wiper to scrape tenatious mud and dirt from the rod. The wiper has a metal case designed to press fit in the housing thus retaining the wiper. The metal case is coated with a corrosion resistant yellow Zinc plating. The press fit design of this wiper allows it to be used in simple ‘open ended’ housing.

Operating conditions:

Optimum service conditions are affected by temperature, speed and surface finish.

Refer to Appendix 1 for further information.

AU Polyurethane
DIN Hydraulic Fluid Description °C
H Mineral oil without additives 100
H-L Mineral Fluid with anti corrosion and anti ageing additives 100
H-LP Mineral oil as HL plus additives reducing wear, raising load 100
H-LPD Mineral oil as H-LP but with detergents and dispersants 100
H-V Mineral oil as H-LP plus improved viscosity temp. 100
HFA E Emulsions of mineral oil in water. Water content 80-95% 40
HFA S Synthetic oil in water. Water content 80-95% 40
HFB Emulsions of water in mineral oil. Water content 40% 40
HFC Aqueous polymer solutions. Water content 35% ns
HFD R Phosphoric acid ester based ns
HFD S Chlorinated hydrocarbon based ns
HFD T Mixtures of HFD R and HFD S ns
HEPG Polyglycol based ns
HETG Vegetable Oil based 60
HEES Fully synthetic ester based 60



For surface finish and recommended lead in chamfers refer to the illustration below. For housing dimensions and machining

tolerances refer to the catalogue page of selected seal. Refer to Appendix 4 for value of tolerance symbols.


Style PMW is designed to press fit into an open ended housing. For the seal to function correctly, it is important that care be taken in fitting the seal within its housing.

For a detailed checklist, refer to Appendix 3.

Part Number Refer Seal                                  H8
+0.020                                   Nominal
Ød1 ØD1 L1 L2
PMW 1000 1,000 1,375 0,218 0,281
PMW 1250 1,250 1,625 0,218 0,281
PMW 1500 1,500 1,875 0,218 0,281


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