Hebei Hankai metal oil seal

3. Pressure and Temperature Ratings These oil seals are engineered to endure a range of pressures and temperatures, making them suitable for both high-pressure hydraulic systems and standard mechanical applications. The capability of withstanding extreme conditions allows for versatility across different sectors.

2. Inspect Components Before installation, inspect all components for damage or wear. Any damaged parts should be replaced to prevent premature failure.

Understanding Hydraulic Ram Seal Kits A Comprehensive Guide

In this kind of seal, wider tolerances are possible between the OD of the seal and the seal housing. Irregularities of the housing surface can be taken up by the resilient rubber layer on the outside of the seal. However, the rubber covered seal can be blown out under high pressure in a reciprocating application whereas, with a metal case, there is no such danger.

Nitrile (also known as Buna N) 

As can be seen from the seal cross-section shown in Fig. 14.2, shaft seals are complex shapes that require advanced mold design and molding techniques (see Section 7.3 for discussion of fluoroelastomer molding). For some time, most shaft seals were made in the United States by compression molding. Injection molding of shaft seals is prevalent in Europe, and is being used increasingly in the United States. An advantage of compression molding is that preforms (usually rings cut from extruded tubing) are used that closely approximate the amount of stock required for the final parts, so compound waste is minimized. For injection molding, the amount of cured stock in the central sprue and runner (actually a thin sheet leading to the seal lip) is often large compared to the stock required for the final part, so the waste of high-cost fluoroelastomer may be high. Such waste is reduced in modern injection molding designs.