DLSEALS provides full range of hydraulic and pneumatic seals, which are classified as follows.
According to the material: rubber seals, plastic seals, and metal seals.
Rubber: NBR, EPDM, FKM (VITON), SILICONE, HNBR, CR, NR, FFKM, SBR, ACM, etc.
Plastics: PTFE, PEEK, UPE, PA, POM, PCTFE, FEP, PI, etc.
Metals: copper, silver, iron, stainless steel, aluminum, copper-chromium-molybdenum alloy cast iron, and other alloys
According to the application of the equipment, there are: shaft seals, hole seals, shaft and hole seals, dustproof seals, guide series, rotary seals.
According to the application industry: aerospace, military, petroleum, chemical, metallurgy, electric power, automotive, shipbuilding, coal, shield machine, pump and valve, paper, robot, medical, electronic instruments, food processing, energy generation, engineering machinery, hydraulic equipment, etc.
According to the seals type:
Rubber seals: skeleton oil seals, pneumatic seals, rubber Y-rings, O-rings, rubber gaskets, rubber seals, rubber shaped parts, rubber rings, etc.
Plastic seals include: Spring energized seals, Stepseal, Glyd Ring, guide rings, guide tape, gaskets, PTFE seals, leather ring, PU seals, seal repair kits, etc.
Metal seals: bushings, stainless steel oil seals, metal U-rings, C-rings, hollow O-rings, combination gaskets, copper gaskets, aluminum gaskets, silver O-rings, stainless steel O-rings, etc.
O-ring: size standards such as Chinese standard, AS568 American standard, British standard, French standard, German standard, inner diameter range from 0.2MM-4800MM.
Oil seal: crankshaft oil seal, floating oil seal, washing machine oil seal, oil seal cover, skeleton-free oil seal, washing machine oil seal, bucket shaft oil seal, reducer oil seal, wheel hub oil seal, etc.
NBR(nitrile rubber): oil resistance, heat resistance and good wear resistance. Widely used in sealing products, but not suitable for phosphate ester series hydraulic and gear oil containing polar additives. Work at -40～120℃ , used to make O-ring, oil seal, suitable for general hydraulic and pneumatic system.
Hydrogenated nitrile rubber: high strength, oil resistance, wear resistance, heat resistance, aging resistance. Work at -40～150℃ , used for high temperature, high speed reciprocating seal and rotary seal.
Plastic: high modulus of elasticity of the material, high strength, other properties as above. Work at -30～80℃, used to make O-ring, "Y" ring, dust ring, etc., used in engineering machinery and high-pressure hydraulic system sealing.
FKM(Fluorine rubber): heat-resistant, acid and alkali resistant and other chemicals, oil-resistant (including phosphate ester series hydraulic oil), suitable for all lubricants, gasoline, hydraulic oil, synthetic oil. Work at -20～200℃, suitable for sealing of high temperature, chemicals and flame-resistant hydraulic oil, widely used in metallurgy, electric power and other industries.
Polyurethane: excellent wear resistance, high strength, good aging resistance. Work at -20～80℃. Suitable for high pressure and high speed system sealing in construction machinery and metallurgical equipment.
Silicone rubber: Good heat and cold resistance. Small compression permanent deformation, but low mechanical strength, Work at -60～230℃. Suitable for high speed rotary seal and food machinery seal at high and low temperature.
Polyacrylate: better than NBR in heat resistance, can work in various lubricants, hydraulic oil, petroleum-based hydraulic oil containing polar additives, poor water resistance. Work at -20 ~ 150 ℃, can be used in a variety of small car oil seals and a variety of gear boxes, gearboxes, can be resistant to high temperature.
Ethylene propylene rubber(EPDM, EPM): good weather resistance, aging resistance in the air, oil resistance in general, can be resistant to Freon and a variety of refrigerants. Work at -50～150℃, used in refrigerator and refrigeration machinery seal.
Post time: Sep-07-2022