Claron Polyseal Double Acting Piston Seal DPW

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Design:

Designed for use on split pistons, the seal is a precision moulded rubber element with rubberised fabric reinforcements. Style DPW is fitted with clip on anti-extrusion bearing rings on the O.D. to allow larger machining clearances between the piston head and cylinder bore, and to permit higher working pressures. The Polyacetal bearing rings also support the piston head under side load conditions thus preventing metal to metal contact. The bearing rings are an integral part of the seal therefore react directly to operating pressures thus closing the extrision gap. The seal is designed with sufficient radial sectional interference that on complete assembly low pressure sealing is effected. The supporting rubberised fabric has the capability of retaining the sealing media thus assisting in reducing friction and wear. Style DPW has proven to be effective 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.

 

operating conditions

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

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.

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.

+0,36           + 0,1

H11                  js11                   js10              js11                   +0,38           -0,0              Nominal       Minimum        Maximum            Maximum

ØD1 Ød1 Ød2 Ød3 L1 L2 S C R1 R2
DPW 098047 25 12 21.45 23.75 12 6.35 6.5 2.5 0.4 0.2
DPW 118066 30 17 26.45 28.95 15 6.35 6.5 2.5 0.4 0.2
DPW 157094 40 24 35.40 38.65 18 6.35 8.0 4.0 0.4 0.2
DPW 177114 45 29 40.40 43.65 18 6.35 8.0 4.0 0.4 0.2
DPW 188125 48 32 43.35 46.65 18 6.35 8.0 4.0 0.4 0.2
DPW 196133 50 34 45.40 48.65 18 6.35 8.0 4.0 0.4 0.2
DPW 216153/1 55 39 50.40 53.65 18 6.35 8.0 4.0 0.4 0.2
DPW 236173/1 60 44 55.40 58.65 18 6.35 8.0 4.0 0.4 0.2
DPW 248185 63 47 58.40 61.65 19 6.35 8.0 4.0 0.4 0.2
DPW 255196 65 50 60.40 63.65 18 6.35 7.5 4.0 0.6 0.2
DPW 275196 70 50 64.15 68.35 22 6.35 10.0 5.0 0.8 0.2
DPW 295216 75 55 69.15 73.35 22 6.35 10.0 5.0 0.8 0.2
DPW 314236 80 60 74.15 78.35 22 6.35 10.0 5.0 0.8 0.2
DPW 334255 85 65 79.15 83.35 22 6.35 10.0 5.0 0.8 0.2
DPW 354275 90 70 84.15 88.35 22 6.35 10.0 5.0 0.8 0.2
DPW 393295 100 75 93.15 98.00 22 6.35 12.5 6.5 1.2 0.4
DPW 393314 100 80 94.15 98.35 25 6.35 10.0 5.0 0.8 0.2
DPW 413314 105 80 98.10 103.35 22 6.35 12.5 6.5 1.2 0.4
DPW 433334 110 85 103.10 108.00 25 6.35 12.5 6.5 1.2 0.4
DPW 433334/1 110 85 103.10 108.00 22 6.35 12.5 6.5 1.2 0.4
DPW 452354 115 90 108.10 113.00 22 6.35 12.5 6.5 1.2 0.4
DPW 472374 120 95 113.10 118.00 22 6.35 12.5 6.5 1.2 0.4
DPW 492393 125 100 118.10 123.00 25 6.35 12.5 6.5 1.2 0.4
DPW 531433 135 110 128.00 133.00 25 6.35 12.5 6.5 1.2 0.4
DPW 543433 138 110 131.00 136.00 25 6.35 14.0 7.5 1.2 0.4
DPW 551472 140 120 134.05 138.35 25 6.35 10.0 5.0 0.8 0.2
DPW 570472 145 120 138.30 143.00 25 6.35 10.0 5.0 0.8 0.2
DPW 590492 150 125 143.00 148.00 25 6.35 12.5 6.5 1.2 0.4
DPW 629511 160 130 153.00 158.00 25 6.35 15.0 7.5 1.2 0.4

 

 

Nominal Dimensions & Machining Tolerances

Claron

H11               js11                 js10               js11             +0.025″         +0.004          Nominal        Minimum       Maximum

+0.015″        -0.000

 

 

 

 

Maximum

ØD1 Ød1 Ød2 Ød3 L1 L2 S C R1 R2
DPW 100062 1.000 0.625 0.883 0.964 0.468 0.250 0.187 0.093 0.008 0.008
DPW 112062 1.125 0.625 0.986 1.083 0.500 0.250 0.250 0.125 0.015 0.008
DPW 125075 1.250 0.750 1.111 1.208 0.625 0.250 0.250 0.125 0.015 0.008
DPW 150100 1.500 1.000 1.360 1.458 0.625 0.250 0.250 0.125 0.015 0.008
DPW 150100/S 1.500 1.000 1.360 1.458 0.625 0.188 0.250 0.125 0.015 0.008
DPW 162112 1.625 1.125 1.485 1.583 0.625 0.250 0.250 0.125 0.015 0.008
DPW 175112 1.750 1.125 1.570 1.698 0.750 0.250 0.312 0.156 0.025 0.008
DPW 200137 2.000 1.375 1.820 1.948 0.750 0.250 0.312 0.156 0.025 0.008
DPW 212150 2.125 1.500 1.944 2.074 0.750 0.250 0.312 0.156 0.025 0.008
DPW 225162 2.250 1.625 2.069 2.197 0.750 0.250 0.312 0.156 0.025 0.008
DPW 237175 2.375 1.750 2.194 2.322 0.750 0.250 0.312 0.156 0.025 0.008
DPW 250187 2.500 1.875 2.319 2.446 0.750 0.250 0.312 0.156 0.025 0.008
DPW 250187/1 2.500 1.875 2.302 2.437 0.937 0.250 0.312 0.156 0.025 0.008
DPW 262200 2.625 2.000 2.443 2.571 0.750 0.250 0.312 0.156 0.025 0.008
DPW 275200 2.750 2.000 2.522 2.685 0.937 0.250 0.375 0.187 0.031 0.008
DPW 300225 3.000 2.250 2.772 2.935 0.937 0.250 0.375 0.187 0.031 0.008
DPW 300225/1 3.000 2.250 2.772 2.935 1.125 0.250 0.375 0.187 0.031 0.008
DPW 312237 3.125 2.375 2.896 3.060 0.937 0.250 0.375 0.187 0.031 0.008
DPW 325250 3.250 2.500 3.021 3.184 0.937 0.250 0.375 0.187 0.031 0.008
DPW 350275 3.500 2.750 3.271 3.434 0.937 0.250 0.375 0.187 0.031 0.008
DPW 375300 3.750 3.000 3.520 3.683 0.937 0.250 0.375 0.187 0.031 0.008
DPW 387312 3.875 3.125 3.646 3.809 0.937 0.250 0.375 0.187 0.031 0.008
DPW 400325 4.000 3.250 3.770 3.933 0.937 0.250 0.375 0.187 0.031 0.008
DPW 425350 4.250 3.500 4.019 4.182 0.937 0.250 0.375 0.187 0.031 0.008
DPW 450350 4.500 3.500 4.229 4.422 1.250 0.250 0.500 0.218 0.046 0.015
DPW 450350/1 4.500 3.500 4.229 4.422 1.500 0.250 0.500 0.218 0.046 0.015
DPW 475375 4.750 3.750 4.478 4.671 1.250 0.250 0.500 0.218 0.046 0.015
DPW 500400 5.000 4.000 4.728 4.921 1.250 0.250 0.500 0.218 0.046 0.015
DPW 525425 5.250 4.250 4.977 5.170 1.250 0.250 0.500 0.218 0.046 0.015
DPW 550450 5.500 4.500 5.227 5.420 1.250 0.250 0.500 0.218 0.046 0.015
DPW 550450/2 5.500 4.500 5.232 5.437 1.500 0.370 0.500 0.218 0.046 0.015
DPW 575475 5.750 4.750 5.475 5.669 1.250 0.250 0.500 0.218 0.046 0.015
DPW 600500 6.000 5.000 5.726 5.919 1.250 0.250 0.500 0.218 0.046 0.015
DPW 650550 6.500 5.500 6.226 6.419 1.250 0.250 0.500 0.218 0.046 0.015
DPW 700600 7.000 6.000 6.724 6.917 1.250 0.250 0.500 0.218 0.046 0.015
DPW 800700 8.000 7.000 7.723 7.915 1.250 0.250 0.500 0.218 0.046 0.015
DPW 950850 9.500 8.500 9.225 9.418 1.250 0.250 0.500 0.218 0.046 0.015
 

 

 

 

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