Clarson Polyseal Double Acting Piston Seal SPS

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Designed for use on one piece pistons, the five part assembly comprises of a precision moulded rubber sealing element to which are fitted endless P.T.F.E. anti-extrusion ring son the O.D. The anti extrusion rings are designed to be pre loaded on assembly thus effecting a more positive sealing arrangement. Split Polyacetal anti-extrusion bearing rings are added either side to provide support for the piston head.

Maximum Pressure
Max Speed                     Temp. Range Temp. Range
m/s                          -30°C to 80°C -30°C to 100°C
0.50                              175 Bar

0.15                              250 Bar

110 Bar

160 Bar

NBR Rubber
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
HEPG Polyglycol based NS
HETG Vegetable Oil based 60
HEES Fully synthetic ester based NS

This compact one piece piston seal has proven to be popular and effective over a wide range of applications.

Continuous operating temperature for various Fluids

 

These range perameters are Maximum simultaneous conditions. Optimum service conditions are affected by temperature,

speed, pressure, surface finish and extrusion gaps. 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.

Fit seal onto the piston in the following sequence.

1- Solid Anti Extrusion Ring. 2- Rubber Sealing Element 3- Solid Anti Extrusion Ring. 4- Polyacetal bearing rings.

It is important that care be taken in fitting the seal within its housing. Refer to appendix 3 for check list.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Merk

Claron Polyseals

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