Claron Polyseal Single Acting Rod Wiper Seal UPWM

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Claron Style UPWM 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 wiper and is precision moulded in 92° Shore A Polyurethane. The wiper is machine trimmed to provide a precise wiping lip

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 UPWM may be deformed and fitted into a closed groove housing as shown below. 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.

Ød1          Ød1            Ød2           L1             L2

UPWM 30 30.00 38.60 33.00 5.30 7.00
UPWM 40 40.00 50.00 45.00 7.10 12.00
UPWM 50 50.00 60.00 55.00 7.10 12.00
UPWM 60 60.00 70.00 65.00 7.10 12.00
UPWM 65 65.00 75.00 70.00 7.10 12.00


Claron Polyseals


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