Imported resistant to rain O-ring seal manufacturer in Taiwan anti-Wal-top rainwater import EPDM o-ring, o-ring large size waterproof, wear nitrile butadiene rubber o-rings an excellent sealing performance, work? Life high dynamic pressure sealing work life than conventional rubber seal? 5-10 times higher products, up to several times, under certain conditions the seal matrix with life. ? Import O-ring friction resistance? Small force, dynamic and static friction equal to "0" type rubber ring friction 1 / 2-1 / 4, to eliminate low-speed, low pressure movement "crawling" phenomenon. UV O-ring high wear resistance, sealing surface wear and tear with automatic bomb? Compensation function. Taiwan O-ring good self-lubricating properties. Can be used for oil-free seal. Simple rain resistant O-ring structure, easy installation. Solar-O-ring Working pressure: 0-300MPa; Working speed: ≤15m / s; Working temperature: -55-250 degrees. O-ring suitable medium:? Hydraulic oil, gas, water, mud, oil, emulsion, water - glycol acid. Our production of import large-sized O-ring (O-ring) according to specifications mainly divided into: American Standard O-rings, the standard O-ring, European standard O-ring, GB O-ring, AS 568O-ring, JISO ring, PGO-ring, GBO-ring. Divided according to material: NBR nitrile butadiene rubber O-ring, NR natural rubber O-ring, CR neoprene O-rings, EPDM EPDM O-ring, HNBR hydrogenated nitrile butadiene rubber O-rings, SILICOME silicone O Ring, FKM (VITON) Viton O-ring, FLS silicone Viton O-ring, PU polyurethane O-rings. O-ring (O-ring) through the United States NSF / FDA; Germany DVG / KTW; WRAS and other UK Certification. Precision O-ring (O-ring), smooth surface, no needle, no edges, accuracy of +/- 0.03 mm to +/- 0.08 mm. O-ring (O-ring) is high-temperature characteristics, has excellent weather resistance, ozone resistance and chemical resistance, cold resistance is bad. For most of the oil and solvent resistance have, especially acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils. General temperature range of -50 ~ 250 ℃. O-ring (O-ring) for the aerospace, automotive, sensors, medical, pharmaceutical, satellite, valves, pumps, sanitary ware, electronics, bearings, electrical, and other industries. Taiwan Wall top resealed recommended to choose import O-ring hardness of choice is more important. If a power plant turbine pumps hardness of 70 (Shore) seals, often flaking, even transection, after using 85 ~ 90 (Shore) seal, the desired effect. Low hardness, easy to install, but prone to peeling, installation damage, extrusion or pressure explosion. High hardness, inconvenient to install. O-ring hardness is usually 40 ~ 90 IRHD, but in general the use of 70 IRHD is more appropriate for the silicone rubber is the exception, generally use 60 IRHD. Import O-ring design, improper use will accelerate its damage, loss of sealing performance. Experimental results show that as the rational design of each part of the sealing means, simply increasing the pressure, and will not cause damage O-ring. Under high pressure, high temperature operating conditions, mainly due to O-ring damage O-ring material is permanent modifications and O-ring seal is extruded into the gap caused by the gap between bites, O-rings appeared distortions in the movement.