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Free sample pipe flange gasket metal ring type graphite subsea Sealing insulation gasket kit spiral wound gasket
Spiral Wound Gaskets are winding by "V" shaped metallic strip and soft non-metallic filler.
According to the requestment, the gaskets can be within inner and outer rings for improving the gaskets handling, fitting and versatility.
Depend on its excellent compresion resilience, it's suitable for sealing spots where the alteration of temperature and pressure are frequenty.
Basic Type:
Basic type gasket: 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 famale or grooved to flat face flange essemblies.
Inner Ring Type:
Solid inner metal ring acts as a compression stopper. To prevent accumulation of solids, reduce trubulent 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.
Outer Ring Type:
Solid outer accurately locates the gasket on the flange face to give the additional radial strength to prevent 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.
Inner & Outer Ring Type:
An 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 and temperature service, Class 900 and above or where corrosive or toxic media are present.
Spiral Wound Gaskets Materials:
| Metal Winding & Inner Ring | Filler Materials | Outer Ring Materials |
| As Standard | Flexible graphite | As Standard |
| SS304(L) | PTFE | Carbon Steel |
| Mica | others | |
| Others | Ceramic | 304(L) |
| Stainless Steel | Non-asbestos | 316(L) |
| 309 | 317 | |
| 310 | 310 | |
| 317L | 321 | |
| 321 | 347 | |
| 347 | 410 | |
| Alloy 20 | Alloy 20 | |
| Monel 400 | Monel 400 | |
| Titanium 1,2,7 | Titanium 1,2,7 | |
| Nickel 200 | Nickel 200 | |
| Inconel 600,635 | Inconel 600,635 | |
| Incoloy 800,825 | Incoloy 800,825 | |
| Hastelloy B2 | Hastelloy B2 | |
| C276 | C276 | |
| Duplex 31803 | Duplex 31803 | |
| Copper | ||
| Inner ring: Carbon steel also abailable |
Marking and Stamping:
| Spiral Wound Specifications Temperature Limit And Color Coding | ||||
| terial | Min Temp ºC | Max Temp ºC | Abreviation | Color Coding |
| 304L Stainless Steel | -195 | 650 | 304 | Yellow |
| 316L Stainless Steel | -100 | 800 | 316L | Green |
| 321L Stainless Steel | -195 | 870 | 321 | Turquoise |
| 347L Stainless Steel | -195 | 870 | 347 | Blue |
| Carbon Steel | -40 | 500 | CS | Silver |
| Alloy 20 | 185 | 600 | A-20 | Black |
| Hastelloy B2/B3 | -185 | 700 | Hast B | Brown |
| Hastelloy C276 | -185 | 700 | Hast C | Beige |
| Incoloy 800 | -100 | 850 | InCo800 | N/A |
| Incoloy 825 | -100 | 850 | InCo825 | N/A |
| Inconel 600 | -100 | 1000 | InCo600 | Gold |
| Inconel 625 | -100 | 1000 | InCo625 | Gold |
| Inconel X750 | -100 | 1000 | InCo750 | N/A |
| Monel 400 | -200 | 800 | Mon400 | Orange |
| Nickel 200 | -320 | 600 | NI200 | Red |
| Titanium | -320 | 1090 | TI | Purple |
| *Color Coding following ASME B16-20 | ||||
| Material | Min Temp ºC | Max Temp ºC | Abreviation | Color Coding |
| Graphite | -212 | 550 | Graph | Grey Stripe |
| PTFE | -240 | 260 | PTFE | White Sripe |
| Mica | -212 | 1000 | MICA | Light Green |
| *Stripe Coding following ASME B16-20 | ||||
Q1:Are you a Manufacture Factory?
A1:Yes,we are factory,we have our own production lines.
Q2:Does your company accept customization?
A2:We accept OEM service.
Q3: Do you provide free samples?
A3 : Yes, free samples are available, generlly speaking, the buyer shall bear all the delivery cost.
Q4: I am interested in the products but I don't have experience?
A4: Tell us your budget and target market and we will give you professional advice of exact kinds and quantity.
Q5:I have other questions.
A5:Okay, you can contact us directly online or offline, and we will be patient to answer for you.
