Designed for use on split pistons, the seal is a precision moulded Nitrile rubber element with bonded rubberised fabric reinforcements. The seal is designed with initial radial interference such that when fitted low pressure sealing is effected. Rubberised fabric has the advantage of retaining the sealing media within its surface, thus reducing friction and wear.
Style DP has proven to be effective over a wide range of applications.
Maximum Pressure |
Max Speed Temp. Range |
m/s -30°C to 100°C |
0.50 250 Bar
0.15 400 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 |
Continuous operating temperature for various fluids
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.
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.
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.
Claron Nominal Dimensions & Machining Tolerances
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