发布时间：2021-03-06 18:14:06 发布人：
The clearance seal of gas-liquid booster cylinder is based on the small clearance between the relative moving parts, which is often used in the cylindrical mating pair of plunger, piston or valve. The clearance seal is usually realized by opening several equal distance pressure equalizing grooves on the outer surface of the valve core.
Its main function is to make the radial claw force evenly distributed. It also has a certain effect on reducing liquid leakage. The width of the equalizing groove is generally 0.3 ~ 0.5mm, and the depth is 0.5 ~ 1.0mm. To prevent the cylindrical surface with clearance clamping, at the same time to make the spool in the hole to the neutral. To reduce the gap to reduce leakage. At the same time, the resistance formed by the groove is related to the size of the clearance. For the valve core and valve hole, it is generally 0.005 ~ 0.017mm.
This kind of seal has the advantage of low friction, but it can't compensate automatically after wear. It is mainly used for the matching between the cylinder surface with small diameter, such as the plunger and cylinder body in the hydraulic pump, the spool of the slide valve and the valve hole.
Jiurong seals are imported from Japan and UK, oil seal and gas seal adopt unique devices, which ensure zero leakage of the product. The product promises 2-year free warranty to the customer, and the product is rarely repaired.