Zhejiang, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
OEM/ODM Service

Gasket, Spiral Wound Gasket, Swg manufacturer / supplier in China, offering Asme 16.20 Spiral Wound Gasket, Asbestos Packing, EPDM Sheet (RS-5038) and so on.

Gold Member Since 2007
Audited Supplier

Asme 16.20 Spiral Wound Gasket

Get Latest Price
Min. Order / Reference FOB Price
10 Pieces US $0.1/ Piece
Production Capacity: 500, 000/Month
Transport Package: Wooden Case, Plastic Film, Carton Box
Payment Terms: L/C, T/T
Material: Graphite
Usage: Automobile, Machinery, Doors & Windows
Standard: Standard or as The Customer′s Request
Style: Sealing Strip
Shape (for Gasket): Flat Gasket
Specification: ASME, BS, JIS and EN(DIN) standards and others

You Might Also Like


Basic Info

Model NO.: RS1-CGI
Trademark: Rilson
Origin: China, Zhejiang
HS Code: 84841000

Product Description


sealing under heavy operating conditions
strong stress compensation, stable and reliable sealing performance
easy installation


Available in a full range of styles and materials, our spiral wound gaskets are manufactured in accordance with ASME B16.20 for use in all industry flanges, including ASME/ANSI B16.5, ASME B 16.47, Series A & B. American Seal & Packing assures strict adherence to these specifications as routine inspection procedures are applied throughout the manufacturing process. In addition, we maintain trace ability of all materials used in our gasket construction to provide material certifications as required. 

Normal Pressure: from 150# to 2500#
Normal Diameter: from 1/2'' to 60''

 Flat and raised faced diameter flanges up to and inclusive of Class 2500.

Asme 16.20 Spiral Wound Gasket



Technical Benefits: >Metallic winding suited for cyclic loading 
>Outer ring center gasket 
>Inner/outer ring provides additional blow-out strength 
>Inner/outer ring provides a compression stop 
>Prevents flange erosion 
>Prevents inward buckling 
>Reduces turbulent flow 
>Recommended for high pressure/temperature applications
Applicable Standards: >ASME B16.20 
>Suited for ASME B16.47 series A/B flang

Metallic Strip
The standard thickness of the metallic strip is 0.2 mm. 

Filler is normally used for thickness from 0.5 mm to 0.6 mm. 
- Flexible graphite 98%
- Flexible graphite 99.85%
- Ceramic
- Asbestos

Centering ring
The centering ring does not come into direct contact with contained fluid. It is normally made of carbon steel and electro plated or painted to avoid corrosion. Other materials are available on request. 

Inner ring
Inner ring is used to avoid excessive compression due to high seating stress in high-pressure service and it is also used to reduce turbulence in the flange area. It is normally made of the same material as the gasket metallic srtip. 


Manufaturing sizes

This limitations are general and can vary according to the special customer. 

Asme 16.20 Spiral Wound Gasket

The standard manufacturing thickness for spiral wound gaskets are: 3.2 mm; 4.5 mm; 6.5 mm (measured across metallic strip not including the filler, which protrudes slightly beyond the metal). 

Manufacturing tolerances
The tolerance of the gasket diameters (d1, d2, d3, d4, s, s1) are stipulated by ASME B 16.20 and DIN 2632-2638 standards. The gaskets designed for non-standard flanges meet the recommendations by the ASME B 16.20. 

The dimensions of the standard SWG meet the ASME, BS and EN (DIN) standards. 

Production Flow


Asme 16.20 Spiral Wound Gasket

why choose us? 
1)world class gasket 
2)standard/no standard gasket 
3)genuine products with excellent quality 
4)after sales service and technical assistance: 
Rilson provide after sales service as the customer's requirement and needs. 
5)quick delivery: 
Rilson provides just-in-time delivery with its steamlined supply chain. 
6)less cost of purchase: 
Rilson is a direct importer and agent of manufacturers around global, so there are no intermediary costs involved. 

If you are interested in our products, please contact me! I will reply to you as soon as possible. 

Style Structure Hoop material Filler material Inner & outer ring material Normal thickness mm
Gasket Inner & outer ring
With inner & outer rings
304(L);316(L)  Graphite, PTFE, CS,    
321;317L Asbestos 304(L), 316(L),    
31803 Non-asb 321;317L 4.5 3
Monel, Mica, 31803 0.175" 1/8"
Ti,Ni etc Ti,Ni    
INC   INC    
    Hast.C/B   Hast. Monel,    
    Zr702   Zr702    
         ISO International International Standardization Organization
ASME USA American Society of Mechanical Engineers
ANSI USA American National Standards Institute
ASTM USA American Society for Testing and Materials
BS UK British Standard
JIS JP Japanese Industrial Standards
DIN GER Deutsches Institut für Normung e.V.

Send your message to this supplier

avatar Mr. Glen

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now

People who viewed this also viewed