Spiral Wound Gasket
Spiral wound gasket is Filler materials used are Graphite, Non asbestos material, PTFE..Inner & Outer Rings are also used as per customer specifications.
Spiral Wound Gasket, which is sophistically made by spirally winding a pre-formed metal strip and stuffing on the external periphery of metal winding mandrels. Moreover, our gaskets find extensive application in oil refineries power plants, petro chemical industries and marine fertilizer industries. Further, these spiral wound metallic gaskets are well known for its strength and brilliant performance.
Spiral Wound Gasket is available in different materials in accordance to ASME B 16.20 for use in all industry flanges, including ASME/ANSI B16.5, ASME B16.47, Series A & B. Winding Materials include Stainless Steel, Inconel, Monel, Nickel, Titanium, etc
Product Description:
Spiral wound gaskets are designed for ASME B16.20 and ANSI B16.5 flanges. Spiral wound gaskets are available for classes 150 to 2500. Custom filler, winding strip, guide ring and inner ring materials are available upon request.
Our spiral wound gaskets have 4 types:
1.SW600-R Basic Type
Basic construction type, inner and outer diameters are reinforced with several piles of metal without filler to give greater stability and better compression characteristics. – Suitable for tongue and groove, male and female or grooved to flat face flange assemblies.
2.SW600-IR Inner Ring Type
Solid inner metal ring acts as a compression stopper. To prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion, damages of gasket between flange bore and the inside diameter, the annular space is filled up by solid inner metal ring. – Suitable for male and female pipe flanges.
3.SW600-CG Outer Ring Type
Solid outer ring accurately locates the gasket on the flange face to give the additional radial strength to prevent the gasket blowout and acts as a compression limiter. In case of installing the outer ring, it is very easy to install the gasket to flange face because the end of outer ring will touch at bolts – Suitable for use with flat face and raised face flanges. For class 900 and above an internal ring is recommended.
4.SW600-CGI Inner & Outer Rings Type
A inner ring and outer ring type gasket will give an additional compression limiting stopper for gasket inner and outer side. It will prevent the corrosions on flange face at annular space. – Suitable for use with flat face and raised face flanges and specified for high pressure / temperature service – Class 900 and above or where corrosive or toxic media are present.
- LIMITS OF THE TEMPERATURES OF THE MOST COMMON MATERIALS
| Material | Minimum (Cº) | Maximum (Cº) | Denomination |
|---|---|---|---|
| 304 SS | -195 | 760 | 304 |
| 316L SS | -100 | 760 | 316L |
| 317L SS | -100 | 760 | 317L |
| 321 SS | -195 | 760 | 321 |
| 347 SS | -195 | 925 | 347 |
| Carbon Steel | -40 | 540 | CRS |
| Alloy 20 | -185 | 760 | A-20 |
| HASTELLOY B 2 | -185 | 1090 | HASTC B |
| HASTELLOY C 276 | -185 | 1090 | HAST C |
| INCOLOY 800 | -105 | 870 | IN 800 |
| INCOLOY 825 | -100 | 870 | IN 825 |
| INCONEL 600 | -100 | 1090 | IN 600 |
| INCONEL 625 | -100 | 1090 | IN 625 |
| INCONEL X750 | -100 | 1090 | INX |
| MONEL 400 | -130 | 820 | MON |
| Nickel 200 | -195 | 760 | NI |
| Titanium | -195 | 1090 | TI |
| Ceramic | -2012 | 1090 | CER |
| Flexible Graphite | -212 | 510 | F.G |
| PTFE | -240 | 260 | PTFE |
| Mica | -212 | 590 | MICA |
