Claron Polyseal Single Acting Piston Seal GPE

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Design:

Claron Style GPE is designed for use as a single acting piston seal. The seal is a precision moulded Nitrile rubber sealing element with a proportional bonded reinforced fabric base, and an acetal back up ring to resist extrusion. The acetal anti- extrusion ring allows larger clearances and higher pressures. Style GPE is designed to provide effective low pressure sealing through distortion of the lips rather than “squeeze”. This gives an improved response to pressure variations and reduces low pressure stiction to ensure a smoother return stroke. The seal is designed with initial radial interferance to effect low pressure sealing. The rubberised fabric header has the advantage of retaining fluid within its surface thus reducing both friction and wear. Style GPE is an effective seal over a wide range of applications.

Operating conditions:

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.

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

Note: Clearance gap F is the maximum permissable. i.e. gap completely on one side, in the temperature range of -30°C to 100°C The use of a suitably selected Claron bearing ring will effectively reduce the clearance gap F max. to a value closer to F/2 thus increasing the pressure capability of the seal.

Housing:

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.

Fitting:

Style GPE is designed to be fitted onto a split piston and may be used with Claron Style PSR retainer. 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.

H10                              js11                            +0.025                     Nominal sec.           Min chamf                   Max

ØD1 Ød1 +0.38

L1

Sec. S Chamf.

C

R1
GPE 125086 32.00 22.00 9.00 5.00 2.50 0.40
GPE 177118/2 45.00 30.00 10.00 7.50 4.00 0.60
GPE 196137 50.00 35.00 11.00 7.50 4.00 0.60
GPE 196157/1 50.00 40.00 10.00 5.00 2.50 0.40
GPE 216157/1 55.00 40.00 10.50 7.50 4.00 0.60
GPE 248188/1 63.00 48.00 9.50 7.50 4.00 0.60
GPE 248196 63.00 50.00 10.00 6.50 4.00 0.60
GPE 275196 70.00 50.00 14.00 10.00 5.00 0.80
GPE 314236 80.00 60.00 14.00 10.00 5.00 0.80
GPE 393314 100.00 80.00 14.00 10.00 5.00 0.80
GPE 413334/3 105.00 85.00 18.00 10.00 5.00 0.80
GPE 433354 110.00 90.00 12.50 10.00 5.00 0.80
ØD1 Ød1 +0.015

L1

Sec S Chamf.

C

R1
 

GPE 112062

 

1.125

 

0.625

 

0.468

 

0.250

 

0.125

 

0.015

GPE 141087 1.417 0.875 0.468 0.271 0.125 0.015
GPE 150100 1.500 1.000 0.375 0.250 0.125 0.015
GPE 162100 1.625 1.000 0.437 0.312 0.156 0.025
GPE 175125 1.750 1.250 0.375 0.250 0.125 0.015
GPE 178116 1.786 1.161 0.468 0.312 0.156 0.025
GPE 187125/2 1.875 1.250 0.500 0.312 0.156 0.025
GPE 200137/1 2.000 1.375 0.375 0.312 0.156 0.025
GPE 212150 2.125 1.500 0.468 0.312 0.156 0.025
GPE 225162 2.250 1.625 0.437 0.312 0.156 0.025
GPE 237175 2.375 1.750 0.437 0.312 0.155 0.025
GPE 250187/1 2.500 1.875 0.375 0.312 0.156 0.025
GPE 262200 2.625 2.000 0.437 0.312 0.156 0.025
GPE 275200 2.750 2.000 0.437 0.375 0.187 0.031
GPE 275200/2 2.750 2.000 0.562 0.375 0.187 0.031
GPE 275212 2.750 2.125 0.468 0.312 0.156 0.025
GPE 300225/1 3.000 2.250 0.500 0.375 0.187 0.031
GPE 325250/1 3.250 2.500 0.562 0.375 0.187 0.031
GPE 325262 3.250 2.625 0.562 0.312 0.156 0.025
GPE 350275 3.500 2.750 0.562 0.375 0.187 0.031
GPE 350300/1 3.500 3.000 0.500 0.250 0.125 0.015
GPE 362287 3.625 2.875 0.562 0.375 0.187 0.031
GPE 362300/1 3.625 3.000 0.437 0.312 0.156 0.025
GPE 400325/1 4.000 3.250 0.562 0.375 0.187 0.031
GPE 425350/1 4.250 3.500 0.562 0.375 0.187 0.031
GPE 450375 4.500 3.750 0.562 0.375 0.187 0.032
GPE 500400 5.000 4.000 0.750 0.500 0.250 0.046
GPE 600500 6.000 5.000 0.750 0.500 0.250 0.046
GPE 700600 7.000 6.000 0.750 0.500 0.250 0.046

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