Claron Style PWE double acting Rod wiper is designed to remove potential system contaminants from a reciprocating rod during the negative stroke and to assist sealing by collecting the fluid film on the positive stroke. It is classified as a medium to heavy duty wiper and is precision moulded in Nitrile 90o rubber. The wiper is machine trimmed to provide a precise wiping lip. The wipers ability to assist sealing make it ideal for use where zero leakage is required. Claron Wiper Seals Style PWE should not be utilised in combination with double-acting Rod seals unless the housing design allows for pressure relief between the wiper and the seal.
|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%||55|
|HFA S||Synthetic oil in water. Water content 80-95%||55|
|HFB||Emulsions of water in mineral oil. Water content 40%||60|
|HFC||Aqueous polymer solutions. Water content 35%||60|
|HFD R||Phosphoric acid ester based||NS|
|HFD S||Chlorinated hydrocarbon based||NS|
|HFD T||Mixtures of HFD R and HFD S||NS|
|HETG||Vegetable Oil based||60|
|HEES||Fully synthetic ester based||NS|
Optimum service conditions are affected by temperature, speed and surface finish.
Refer to Appendix 1 for further information.
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 PWE 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.