Description

Combination packing rings consist of low-sulphur expanded graphite packing rings and die -formed graphite rings. They usually use the high carbon packing rings or nickel graphite rings as end rings and the pure graphite rings or graphite packing rings as middle rings. They can overcome weakness of a single packing ring’s sealing effect.

Application

Extremely suitable for valves handling thermic fluids, boiler feed water, solvents, acids & alkali, superheated & Saturated Steam handling control valves at high pressure. It can also be used in dynamic and static equipment handling organic & inorganic chemicals, in blowers, dryers, autoclaves, mixers & vessels.

Specification

Feature

1. High strength, high hardness

2. Good thermal stability, corrosion resistance and self-lubrication

3. High temperature resistant

4. Good chemical stability, oxidation resistance

5. High density, long service life.