Spiral Wound Gasket Style CGI

Spiral Wound Gasket Style CGI

Spiral Wound Gasket supplied by Diyak is widely uesd for sealing flange joints, manhole and handhole covers, tube covers, boilers, heat exchangers, pressure vessels, pumps, compressors and valves, in industries such as petrochemical, pharmaceutical, shipbuilding, and food processing, in power industries and nuclear power stations. They are ideal for steam, oil, liquids, gases, acids, alkalines, various organic mediums and solvents. It can be manufactured with any material as per customers requirement in accordance with the standard ASME, DIN, BS, API or to customer’s specification. Spiral wound gaskets are produced in several style and combination of meterials to fit the most stringent application. Spiral wound gaskets are usually of circular shape, however we can produce them in other shapes such as: oval, rectangular, with round corners, etc. Our standard production program comprises a range of spiral wound gaskets with inner diameters of 10mm to 3000mm and non-standard dimensions and shapes, and larger diameters are available on request.
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Description

Spiral Wound Gasket Style CGI

Style CGI spiral wound gaskets are a Style CG gasket fitted with an internal ring which gives an additional compression limiting stop and provides a heat and corrosion barrier protecting gasket windings and preventing flange erosion. Suitable for use with flat face and raised face flanges and specified for high pressure/temperature sevie class 900 and above or where corrosive or toxic media are present.

It is customary to select inner ring material to be the same as the metal winding.

Note on use of Inner Rings

  • ASME B16.20 which covers spiral wound gaskets requires the use of solid metal inner rings
  • Pressure Class 900:nominal pipe sizes 24″ and larger
  • Pressure Class 1500:nominal pipe sizes 12″ and larger
  • Pressure Class 2500:nominal pipe sizes 4″ and larger
  • All PTFE filled gaskets.

Standard of Spiral Wound Gasket

  • GB4622.2-2008
  • HG20610-2009
  • HG20631-2009
  • ASME B16.20
  • BS EN 1514-2
  • BS EN 12560-2
  • JIS B2404
  • EN 1514-1
  • EN 12560-1
  • JB-T 4705

*We can make various shapes of spiral wound gasket as your drawing and your dimensions.

Materials Available for Spiral Wound Gasket

 
METAL WINDING STRIP FILLER MATERIALS GUIDE RING MATERIALS
Stainless Steel 316L Treated Asbestos Fiber Carbon Steel
Stainless Steel 304 Non-Asbestos Fiber Stainless Steel 304
Stainless Steel 309 P.T.F.E Stainless Steel 316L
Stainless Steel 310 Flexible Graphite Stainless Steel 316
Stainless Steel 316 Ceramic Ti Stainless Steel
TiStainless Steel Aluminum 321Stainless Steel
321 Stainless Steel 347 Stainless Steel
347 Monel 4l0 Monel
400 Nickel 400 Nickel
200 Inconel 200 Inconel
600 Inronel 600 Incoloy
625 Inconel 800Inroloy
X750 Incoloy 825 Hastalloy
800 Incoloy B2 Hastalloy
825 Hastalloy C276 Titanium
B2 Hastalloy Alloy 20
C276 Titanium

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