Claron Polyseal Double Acting Piston Seal SPW

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Design:

Designed for use on one piece pistons, the seal assembly consists of a filled PTFE high performance outer sleeve, pre loaded and pressure energised by a precision moulded NBR element. These two components are protected from extrusion at either side by the fitting of two low friction plastic anti-extrusion rings making the seal highly resistant to shock loads as found in heavy duty mobile equipment. The housing dimensions are those used in standard metric J.I.S. cylinders.

Maximum Pressure
Max Speed Temp. Range Temp. Range
m/s -30°C to 80°C -30°C to 100°C
4 350 Bar 280 Bar
2 500 Bar 400 Bar

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:

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.

Part Number +0,00 +0,20 Nominal
  H9

ØD1

-0.20
Ød1
-0.00
L1
C
SPW 050 50 36 9,0 4,0
SPW 060 60 46 9,0 4,0
SPW 065 65 50 11,0 5,0
SPW 070 70 55 11,0 5,0
SPW 075 75 60 11,0 5,0
SPW 080 80 65 11,0 5,0
SPW 085 85 70 11,0 5,0
SPW 090 90 75 11,0 5,0
SPW 095 95 80 11,0 5,0
SPW 100 100 85 12,5 5,0
SPW 105 105 90 12,5 5,0
SPW 108 108 93 12,5 5,0
SPW 110 110 95 12,5 5,0
SPW 115 115 100 12,5 6,5
SPW 120 120 105 12,5 6,5
SPW 125 125 102 16,0 6,5
SPW 130 130 107 16,0 6,5
SPW 135 135 112 16,0 6,5
SPW 140 140 117 16,0 6,5
SPW 145 145 122 16,0 6,5
SPW 150 150 127 16,0 6,5
SPW 160 160 137 16,0 6,5
SPW 165 165 142 16,0 6,5
SPW 170 170 147 16,0 6,5
SPW 180 180 157 16,0 6,5
SPW 185 185 162 16,0 6,5
SPW 190 190 167 16,0 6,5
SPW 200 200 177 16,0 6,5
SPW 210 210 187 16,0 6,5
SPW 220 220 197 16,0 6,5
SPW 225 225 202 16,0 6,5
SPW 250 250 222 17,5 7,5

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Claron Polyseals

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