Performance and use:
Constructed of a wear-resistant, filled PTFE ring and O-ring. The O-ring provides a pre-tightening force to compensate for the wear of PTFE square rings. Suitable for hydraulic cylinder piston seal, two-way seal. General and supporting the use of guide ring. Pore size less than 40 specifications, should be used split groove.
Material: PTFE + NBR, under special circumstances using rubber fluorine rubber FKM.
Working conditions:
Working pressure: 0-40MPa;
Reciprocation speed: ≤5m / s;
Operating temperature: O-ring for the glue NBR: -30 ~ +120 ºC, fluorine rubber FKM: -20 ~ +200 ºC;
Working medium: hydraulic oil, gas, water (in the phosphate ester hydraulic oil use fluoride rubber).
design standards:
This series conforms to the ISO 7425/1 standard, complies with GB / T15242.1-94 and GB / T15242.3-94 standards, reference to Trelleborg GS55044 series, Merkel OMK-MR series and Parker OE series.
PTFE+copper powder gasket:
Glyd ring: composite by the high wear-resistant PTFE rectangular ring and O shaped rubber sealing ring. O ring to provide sufficient sealing force, the role of the rectangular ring wear compensation. The ring is matched with a guide support, less than 40 of the specifications should be bore with split groove. Suitable for hydraulic cylinder piston seal, can be two-way sealing.
Working pressure: 0-40MPa maximum 60MPa
Reciprocating speed: less than 5m/s
Swing or rotation: less than 3m/s
The use of temperature: -+200 degrees C -40 C (by the material of O ring of the set)
Applicable price: hydraulic oil, steam, water, emulsion, etc..
According to the actual environment of the customer needs to produce a variety of physical properties and specifications of the wear ring.
Corrosion resistance: the ability to bear in addition to the molten alkali metals, fluoride medium and more than 300 DEG C sodium hydroxide outside all acid (aqua regia), strong oxidizing agent, reducing agent and organic solvent.
Insulation: not affected by the environment and frequency, the volume resistance of up to 1018 ohm cm, dielectric loss of small, high breakdown voltage.
High and low temperature resistance: on the influence of the temperature change is not big, wide temperature range, can use the temperature of -190~260 DEG C. Self lubrication: with the smallest coefficient of friction in the plastic, is an ideal non oil lubricating material. The surface is not sticky: solid materials are known to be unable to adhere to the surface, is a surface can be the smallest solid material.
Atmospheric aging resistance, radiation resistance and low permeability: the long-term exposure to the atmosphere, the surface and the performance remains unchanged.
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