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2．Standard Materials
Seal ring: filled PTFE
O-Ring: NBR, FKM
3．Application Range
For reciprocated hydraulic system. Possessing excellent performance in high and low pressure and high frequency conditions. Suitable for long and short stroke. Applied to bigger rod diameter in fluids and under high pressure, for example: injection moulding machines, bulldozers, agricultural machinery, compressors and other machine tools, etc. In line with standards of ISO 7425/1, GB/T1542.1-94 and GB/T15242.3-94. Design and apply please referring to Trelleborg’s PG4, Merkel’s OMK-MR, Parker’s OE and AS’s YB series standards.
4．Characteristics
1- allow large extrusion gap according to different application, low cost
2- high static and dynamic sealing effect
3- be able to work in dusty condition
4- low friction, no stick-slip behavior
5- simple groove design, applied in integral pistons
6- available in various of materials, strong adaptability to work conditions
7- be able to work in latest environmental protecting hydraulic oil (biology oil )
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