昆山弘兴昌科技有限公司

Metal spiral wound gasket model
Spiral wound gasket shape
Metal spiral wound gasket description
Metal spiral wound gasket is made of high-quality shaped or shaped metal strips and other alloy materials with graphite asbestos, polytetrafluoroethylene, and asbestos-free Such soft materials are alternately overlapped and spirally wound, and the metal strips are fixed by spot welding at the beginning and end. Metal spiral wound gaskets are the gaskets with the best resilience among semi-metallic sealing gaskets. The structural density of metal spiral wound gaskets can be produced according to different locking force requirements, and the inner and outer steel rings are used to control the maximum compression degree. The surface accuracy of the flange sealing surface in contact with the gasket is not high. Metal spiral wound gaskets are particularly suitable for situations where the joint force is prone to loosening due to uneven loads, and where there are shocks or vibrations due to periodic changes in temperature and pressure. The spiral wound gasket is an ideal static sealing element for flange connections such as valves, pumps, heat exchangers, towers, manholes, hand holes, etc. The flange joints such as manholes and hand holes in vessel towers are sealed.
Wound-wound gaskets are divided into four forms: basic spiral wound gasket, inner ring spiral wound gasket, outer ring spiral wound gasket, inner and outer ring spiral wound gasket.
Types of metal spiral wound gaskets
Type
Thickness
Basic spiral wound gaskets

Spiral wound gaskets with inner ring

Wound gasket with outer ring

Wound gasket with inner and outer ring

Structural materials of metal spiral gasket
Filling material
Steel strip
Inner ring
Outer ring
Asbestos wrapping

Carbon steel
Carbon steel
Graphite wrapping


PTFE winding





Filling material
Temperature
Maximum operating pressure
Graphite winding
~
Asbestos winding
~
PTFE winding
~
The following table is used for material selection of inner ring and winding metal
Trade name

Hardness
Temperature
Stainless steel

~
~+
Stainless steel

~
~+
Stainless steel

~
~+
The outer ring is usually composed of carbon steel treated with anti-corrosion treatment.
Types of flanges and forms of spiral wound gaskets
Types of flanges
Shapes of spiral wound gaskets
Flat flanges
Only with outer ring spiral wound gaskets
With Inner and outer ring spiral gasket
Raised face flange
With outer ring spiral gasket only
With inner and outer ring spiral wound gasket
Concave and convex flange
Basic spiral spiral gasket< br/> Inner ring spiral wound gasket only
Grooved flange
Basic spiral spiral gasket
Inner ring spiral wound gasket only
Flat and grooved flange
Basic spiral wound gasket
Spiral wound gasket with inner ring only
Spiral wound gasket thickness tolerance
Item
Thickness
Tolerance
Gasket thickness
/>+
Ring Thickness

The table below is the spiral wound gasket diameter tolerance i.e. the nominal pipe diameter used for the flange




Tolerance
Inner ring inner diameter
Gasket inner diameter












Gasket outer diameter





< br/>


Outer ring outer diameter


/









Note In addition, we can also produce according to standards or customer requirements
Main technical parameters of metal spiral wound gaskets
Coefficient of spiral wound gasket
Operating pressure of spiral wound gasket
Operating temperature of spiral wound gasket
℃℃ should not be higher than ℃ in oxidizing medium
Minimum preload pressure of spiral wound gasket
/> Actual application conditions vary. The above parameters are for reference only and do not make any guarantee requirements.
Other related products Semi-metallic gaskets
Non-metallic flat gaskets Graphite gaskets PTFE gaskets PTFE-coated gaskets Asbestos rubber gaskets
Non-asbestos gaskets Rubber gaskets
/>Metal ring gasket Oval metal ring gasket Octagonal metal ring gasket Metal toothed gasket Metal flat gasket
Kunshan Hongxingchang Electronics Co., Ltd. is located on Changjiang South Road, Kunshan. People-oriented technology is the company's consistent policy Business policy and the establishment of the factory. In the past year, we have introduced technology, digested the new product development capabilities of mature foreign process companies, and continuously strengthened materials. New processes have been continuously applied in production. The factory has complete testing equipment
Mainly produces fully covered rings, Double-layer PTFE-coated fluorine ring with an inner core of silicone rubber/fluorine rubber and a double-layer PTFE-coated fluoroplastic ring on the outside, PTFE products, pan-plug seals, rubber radial joints, shock absorbers, rubber seals, various Rubber miscellaneous materials include natural rubber, fluorine rubber, fluorine rubber, silicone rubber, rubber and other products are widely used in automobile trailers, electrical appliances, machine tools, valves, pneumatic industries. The main technical performance characteristics of the products are acid resistance, high and low temperature resistance, non-toxic, oil resistance, etc. < br/> The factory produces a wide variety of products. The product production process strictly follows the international quality system standards from raw material purchase to processing and production. The company has strict control at all levels with the purpose of customer first and quality first. We will wholeheartedly provide you with high-quality products and services.
Main products or services include: coated rings, double-layer PTFE-coated fluorine rings, silicone rings, fluorine rubber rings, nitrile rings, EPDM rings, PTFE rings and plugs Sealing perfluoro B-type rings, etc.
PTFE products PTFE rods, PTFE barrels, PTFE rings, PTFE gaskets, PTFE modification, etc. PTFE products
Rubber products rubber strips Rubber miscellaneous parts and processing according to incoming drawings, shock absorbing pads, soft joints, etc.