ISO9001 Spiral Wound Gasket

Products description:

Flexible Graphite Flange Spiral Wound Gasket Spiral Wound Gasket O-RING Gasket

Standard Specification: According to European Standard EN, American Standard ASME, British Standard BS, German Standard DIN, Commonwealth Standard GOST

Non-standard size: from 15 mm to 3200 mm

Filling materials: expanded graphite, PTFE, ceramics, mica

Filling thickness: from 2.5 mm to 7.2 mm (standard thickness 4.8 mm)

Metal spiral wound gasket

Spiral Wound Gasket (Spiral Wound Gasket) is formed by overlapping and continuous winding of metal tape and non-metal tape. The strengthening ring can be selected according to the requirements of the working conditions. It is also possible to change the material combination of the gasket to solve the chemical corrosion problem of various media on the gasket. And it has the characteristics of excellent sealing ability, high temperature and high pressure resistance, adaptability to ultra-low temperature or vacuum conditions, corrosion resistance, easy installation, and low requirements for the accuracy of the flange surface in contact with the gasket. It is widely used in petrochemical, steel smelting, electric power, water treatment, aviation, shipbuilding, papermaking, pharmaceutical, general machinery supporting industries.
The company can process various standard spiral wound gaskets, such as GB, HG, SH, JB/T, ASME, DIN, API, JPI, JIS, etc. For some non-standard products with special requirements, we will make them according to your requirements. Design and manufacture.

A. Basic type
It is wound by metal belt and filler material, suitable for concave and convex flanges, tongue and groove flanges and groove flanges.

B. Inner ring
On the basis of the basic model, a metal inner ring is added as a pressure baffle, while filling the gap between the flange edge and the inner edge of the seal. This design can prevent solid accumulation, reduce fluid impact, and minimize the erosion of the flange surface .

C. Outer ring type
Using the outer ring, the gasket can be accurately placed in the center of the flange, and additional resistance is provided to prevent the gasket from bursting, becoming a compression stop. Generally applicable to flat and raised face flanges.

D. Inner and outer ring type
On the basis of the outer ring type, an inner ring is added as an internal compression stop point, which at the same time becomes a heat and corrosion resistance body to protect the gasket sealing surface and prevent flange corrosion. Suitable for flat and raised face flanges, especially suitable for high temperature and high pressure working conditions.

*Special-shaped metal spiral wound gasket

Special-shaped metal spiral wound gasket
It is a gasket specially used to seal boiler holes, pores, valve covers and other parts, and the working pressure can reach 2500PSI. The operating temperature can be determined according to the material of the metal belt and the filler. Because there is no inner and outer ring reinforcement, the effect is particularly good when used in L-shaped or U-shaped grooves.