High temperature resistant O-ring is an extruded seal, when sealed grooves, which cross section subjected to compressive stress while contacting elastically deformed. Contact surface have some initial contact pressure Po. Even without the media pressure or low pressure, seals by its own elastic force and can achieve seal; when waterproof o-rings seals, o-rings and oil seals, after filling the cavity of the pressure medium, in the role of media pressure, O-ring is displaced toward the low side, while its elastic deformation further increase, filling and closing the gap δ. At this point, sit for the contact pressure of sealing coupling surface rose to Pm: Pm = Po + Pp where Pp-- passed by the O-ring contact surface of the contact pressure (0.1MPa) Pp = K PK-- pressure? transfer coefficient of rubber o-ring, for rubber O-ring K = 1; P-- sealed fluid pressure (0.1MPa). Thereby greatly increasing the sealing effect. General K≥1, so Pm> P. Thus, as long as the rubber ring, o-rings seal surface is smooth, with initial pressure, it can achieve a leak-free seal. This pressure by the media itself to change the O-ring contact state, to realize their nature seal, called self-appointed role. Theoretically, even zero compression at the oil pressure can be sealed, but after taking into account such factors as the eccentric O-ring seal into the groove, the cross-section is generally subject to 7% -30% compression deformation. Static seal compression ratio value, whichever is greater. Dynamic sealing take a smaller compression ratio values. This is because synthetic rubber at low temperatures to be compressed, so the static sealing of pre-compression should consider compensating its low shrinkage. Second, the company sells good quality imported nitrile rubber O-ring, which has oil, abrasion advantages, in the same oil products in the lowest price, long-term use temperature range is -20 ℃ to 100 ℃, can be special customized temperature is -40 ℃ to 120 ℃. Third, the type of seals: O type ring, star-ring, ED seals, rubber balls, seals, washers, rubber flat washer, USH seals, shaft seals, seal holes, Y type ring ...... Fourth, good quality imported NBR O-ring O-ring representation sizes of representation mainly in diameter, diameter, diameter expressed. Imported NBR O-ring inner diameter is usually ID represents an outer diameter OD is said CS diameter is expressed. Generally marked on the drawing sheet size o-ring inner diameter and the diameter on it. As the diameter is 10mm, diameter is 1.8mm, so the outer diameter o-rings = 10 + 1.8 * 2 = 13.6mm. According to different materials o-ring size is divided into Viton o-ring specification, import NBR O-rings, silicone O-ring specifications, NBR rubber o-ring specifications, EPDM rubber o-ring specifications, HNBRO-ring specifications. Kunshan Hui Yang Sealing Products Co., Ltd. Address: Kunshan City, Jiangsu, China Zhenchuan Road Zip:.. 215300 QQ Contact: 937 002 008 Phone: 86 0512-50131470 Fax: 86 0512-82092220 Contact: Liu Yang Mobile: 15312165301 Website: http : //www.fymfzp.com E-MAIL: fymfzp@163.com