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Spiral wound gaskets have proven themselves to be the most reliable sealing element for use in difficult, critical and arduous duties. Spiral wound gaskets are used in Refinery, Petrochemical, Chemical, Steam lines and Process Industries, where they have many advantages over older types of gaskets.

These gaskets are manufactured to International specifications such as BS, API, ASME, DIN, or to customer's specification.

CROSS SECTION AND CONSTRUCTION
1. Without Guide Ring
Spiral wound gasket without centering ring.
2. With Outer Guide Ring
Spiral Wound Gasket with centering device.
3. With Outer & Inner Guide Rings
Spiral Wound Gasket with inner and outer rings. (Rings are made of Carbon steel Stainless steel and other metals).
4. With Inner Guide Rings
Spiral Wound Metallic Gasket with inner rings. (Rings generally of Stainless steel).
5. W - Type
Spiral Wound Metallic Gasket 'W' type.
6. Inverted - W
Spiral Wound Metallic Gasket 'Inverted W' type.

Without
Guide Ring
With Inner
Guide Ring
With Outer
Guide Ring
With Inner &
Outer Guide Ring
 
FLANGE STANDARDS
FLANGE STANDARDS for the above spiral wound gaskets can be manufactured in accordance with all relevant gasket standards and specifications to suit the following flange designations:
1. ASME / ANSI  B16.5 4. MSS SP44 (ASME B16.47 SERIES A) (AWWA)
2. BS 1560, BS10, BS4504 5. DIN FLANGES, JIS FLANGES
3. API 605 (ASME B16.47 SERIES B) 6. FRENCH NF STANDARD
 

COMMON FILLERS USED ARE

  FILLERS MATERIALS   MAX. WORKING TEMPERATURE
  Graphite Mica   350 F (Temperature)
  Graphite 99.8% purity   1200 C
  Non asbestos   550 C
  PTFE   250 C
  Ceramic  1000 C
 

INNER AND OUTER RING
Carbon Steel, Stainless Steel 304,304L, 316,316L,316Ti,321,347, MONEL 400,Inconel 600,625,800, 800, 825, Nickel 200, Titanium, Copper

SPIRAL WOUND GASKET SIZES
Size & Shape as per Prevailing International standards or Customer need can be produced.

 

GASKET COMPRESSION & CHOICE OF THICKNESS
  Nom. Thickness   Compressed Thickness
  2.5 mm(.098 in)   1.9/2.1mm(.075/.085 in)
  3.2 mm(.125 in)   2.4/2.6mm(.095/.105 in)
  4.5 mm(.175 in)   3.2/3.45mm(.125/.135 in)
  6.4 mm(.250 in)   4.6/4.8mm(.180/.190 in)
  7.3 mm(.285 in)   4.7/4.9mm(.185/.195 in)
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