Design:
Claron Style EGS rod seal is a 2 piece assembly consisting of a Nitrile Rubber sealing element complete with rubberised fabric reinforcement which is backed up by a tough Thermoplastic elastomer header. The complete assembly forms a robust sealing unit for use in high pressure applications where shock loads and pressure spikes are present. This seal is widely used in telescopic cylinder applications.
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 |
Housing:
Fitting:
| 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 |
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 EGS is designed to be fitted into a split gland as shown in the illustration below. The seal can be supplied split to ease fitting if required. 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.
| ±0.001 H9 | ±0.003 | +0,015 | Max. | Max. | Max. | |||
| +0,025 | ||||||||
| Ød1 ØG | ØD1 | L1 | F | R1 | R2 | |||
| EGS 275 | 2,750 | 3,200 | 0,750 | 0,010 | 0,020 | 0,030 | ||
| EGS 350 | 3,500 | 4,013 | 0,750 | 0,010 | 0,020 | 0,030 | ||
| EGS 437 | 4,365 | 4,888 | 0,750 | 0,010 | 0,020 | 0,030 | ||
| EGS 525 | 5,249 | 5,888 | 0,775 | 0,010 | 0,020 | 0,030 | ||
| EGS 631 | 6,312 | 6,889 | 0,750 | 0,010 | 0,020 | 0,030 | ||
| EGS 731 | 7,312 | 7,954 | 0,750 | 0,010 | 0,020 | 0,030 | ||
| EGS 837 | 8,375 | 9,000 | 0,750 | 0,010 | 0,020 | 0,030 | ||
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