Imported star ring profile
1 (star) (X-ring) is also a kind of standard parts, is the section for the X seal ring. Applicable to machinery, valves, cylinders, pumps, etc.. The main specifications to American Standard AS568 as the standard, the diameter of 1.78, 2.62, 3.53, 5.33, 6.99; the spot mainly use NBR and fluorine rubber and other non-standard specifications can also be customized mold. The star ring is a sealing ring with four lips. The same as it o ring has the advantages of convenience, economy and wide application field etc.. Compared with O-Ring, it improves the distortion, extrusion and other issues. The utility model can be used in the sealing system of reciprocating motion, rotary motion and spiral motion. It and AS 568A standard series O-Ring groove has good interchangeability. The utility model can be used for sealing the gas and the liquid in the dynamic or static state, and is suitable for reciprocating piston, piston rod and plunger, and can also be applied to the shaft and the shaft in the swing screw and the rotating condition.
2 (X) sealing ring working pressure: when the static ring, up to 5MPA; when there is a ring, up to 40MPA.
Dynamic, reciprocating motion without ring, up to 5MPA; the reciprocating motion of a retaining ring, up to 30MPA; rotational motion with a retainer ring, up to 15MPA;
3) movement speed: reciprocating motion, up to 0.5M/S; rotary motion up to 2M/S.
4 temperature: general and the choice of material, Ding Qing rubber NBR limit temperature of -40~120 DEG C; fluorine rubber VITON limit temperature of -40~240 C.
5) star shaped features:
A, anti distortion and anti extrusion is good; B, double lip seal; C, no rolling phenomenon; D, small friction resistance;
E, dynamic sealing performance is excellent.
Two, imported star ring material introduction
O type of imported materials in the wear resistance of the commonly used materials are NBR, three ethylene propylene rubber, fluorine rubber. These three kinds of rubber materials have their own advantages and disadvantages. The O type rubber ring is usually used in hydraulic cylinder, and it is not exposed to high temperature and corrosive medium. Three ethylene propylene diene rubber O ring price slightly higher than the price of some of the advantages of high temperature corrosion resistance can be slightly higher, the disadvantage is not oily. Fluorine rubber O ring can also be understood as NBR and EPDM rubber a little combination of three, with high temperature, wear resistance, corrosion resistance and many other advantages, but the disadvantage is that the price is higher.
Imported O type can be roughly divided into two types, one is the O ring is now imported from abroad finished products directly, and the other imported rubber materials in the domestic production of O ring. In the first case, the quality can be guaranteed, but the disadvantage is that the delivery cycle is long and the price is high. The second situation is cheap and short delivery cycle, the disadvantage is that the quality can not be guaranteed. The company combines the advantages of the title of the two cases, the use of advanced production technology, factory in Wuxi using imported compound to produce a O cheap seal, delivery also greatly improve the efficiency and quality of your products to do a strong guarantee