Spiral wound gasket is formed of V-shaped metallic strip and connected its end & beginning by dot welded. Depending on its excellent compression resilience, it is suitable for sealing spots where the alteration of temperature and pressure are frequent. It can be used as the static sealing element of pipe, valve, pump, thermal excahnger, condensing tower, plain hole and man hole of flange, etc. Please offer the detailed drawing, while the gasket is used in thermal exchange if with some ribs.
Construction
| Profile | Products | Style | Flange | Example |
 | Basic type SWG | RS1-R | Tongue/Groove | 304+F.G |
 | SWG with inner ring | RS1-RIR | Male and Female | 304/304+F.G |
 | SWG with outer ring | RS1-CG | Raised face / Flat face | 304+ABS/CS |
 | SWG with inner&outer rings | RS1-CGI | Raised face / Flat face | 304/304+F.G/CS |
 | SWG for heat exchanger | RS1-H | Heat exchanger | 304/304+F.G with 1 bar of DJ 304/F.G |
 | Special shape SWG | RS1-S | Special | Track, Oval, Diamond, Square |
Material
| Style | Structure | Hoop material | Filler | Inner & outer ring material |
| SWG | With inner & outer rings | 304(L),316(L),321,317(L),31803,Monel,Ti,Ni,INC, Hast. C/B Zr702,Etc. | Graphite,PTFE,Asbestos,Non-asbestos, Mics,Monel,etc. | CS,304(L),316(L),321,317(L),31803,Monel,Ti,Ni,INC, Hast.C/B Zr702,Etc. |
ABOUT PTFE
PTFE is principally used as a gasket material because of it's capability to remain unaffected by the majority of chemicals used in industry. It is also classified, in most cases, as a food grade material, making it acceptable to both medical and food production industries. There are three basic types of PTFE gasketmaterials. Virgin PTFE , filled PTFE and expanded PTFE .
Virgin PTFE is by far the least expensive of the three varieties, and is used in most general applications. Filled PTFE is a gasket material with a virgin PTFE base to which a substance is added during manufacture to improve the sealing characteristics of PTFE . This "filler" usually is glass or graphite particles although ceramics has sometimes been used. The resulting gasket material is strong, yet highly compressible with very good, though not universal, chemical resistance
Expanded PTFE is virgin PTFE to which a stress resistance has been added by means of molecular rearrangement during manufacture. This process ensures that the molecular chains from which the PTFE is constructed, do not arrange themselves into set patterns. This means that expanded PTFE possesses no structural weakness (grain) and expands and contracts equally in all directions. Because no additives are required, expanded PTFE also possesses the unique chemical resistance of virgin PTFE .
Standard Thickness: 2.5 mm/3.2mm/4.5mm/6.4mm/7.3mm
Largest non-standard gasket manufactured up to 3000 mm diameter
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
>BS, JIS,DIN
>Suited for ASME B16.47 series A/B flanges
Production Flow
Shearing==>Punching==>Lathing==>Drilling==>Assembling==>Packaging
Work Shop
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 feel free to contact me in Email and I will reply to you as soon as possible.
My target of service is to satisfy your requirements.
My Email: sales02 at rilson.com.cn
