SEMI-METALLIC GASKETS
Spiral Wound Gasket is a sealing element with or without outer guide rings/ inner rings . The sealing element consist of spirally wound strip filled with different types of fillers like Graphite/ PTFE/Ceramic etc., depending upon the nature and type of application_ The picture below illustrates a typical arrangement of a spiral wound gasket. INMARCO manufactures different types of gaskets in different combinations and sites of exotic materials like carbon steel, stainless steel, nickel and alloy steels. These gaskets are manufactured meeting the requirements of international specification such as ASME, DIN, llS etc.
Description:
SPG (G) — Wide choice of material for metal strip and filler (Ceramic / Flexible Graphite / PTFE /Verdicarb (Mica Graphite). Suitable for high pressures and temperatures application. Recommended for flanges with tongue and groove.
SPG (IR) — Consist of Solid metal inner ring. Suitable for high pressures and temperatures. Recommended for male and female flanges.
SPG (OR) — Solid metal outer ring used as a centering device and compression stop. Recommended for Raised faced and flat face flanges.
SPG (10R)— Consist of metal inner and outer rings. Suitable for high pressures and temperatures applications. Prevents turbulence and erosion damage to flange. Prevents damage for gasket bore and inner windings. Acts as a corrosion barrier. Recommended for raised face or flat face flanges.
Semi Metallic Gasket
Material (Inner and Outer Ring) : SS304 /SS316 / SS316L /SS321 etc Size: 1/2″ to 24.0′ Classes: 150# to 2500# larger sites can be produred to order. other Spiral Wound gasket Material & sizes available ipon request
Comprofile Gasket for Flange Joints:
Due to wide seating stress range of the camprofile gasket makes it :
∎ Highly suitable for varying temperature and pressures
∎ less sensitive to assembly faults (inaccurate bolt tensioning).
∎ Suitable for light and heavily constructed flanges.
∎ Depending on layer material camprofile gaskets are resistant to temperatures up to 1000°C.
∎ Resistant to media pressures up to 250 Bar.
Benefits:
∎ When assembled the layer thickness of the waling material is extremely small (0.5mm) thus reducing leaks reject fates and environment pollution.
∎ The gasket will not damage the flange surface and can be easily removed.
∎ Reduces maintenance costs.
∎ Emergency waling of damaged flanges by using I mm thick sealing layers until the flange can be reworked.
∎ Excellent performance on fluctuating temperature. and pressures.
∎ Direct replacement for existing gaskets. No special flange finish is necessary.
∎ Eco friendly.
Heat Exchanger Gasket
Advantages
∎ Available in wide range of materials, since they are all custom made
∎ Metal jacketed heat exchangers
∎ The Metal jacket provides mechanic strength to contain the filler and improves chemical resistance
∎ Unique construction provides stability and ensures trouble-free handling and installation
Gaskets with welded bars have eliminated greatest problems of conventional gaskets, which develop cracks in the radius Metal of alloys are commercially available in sheets or rolls of 1000 mm width
The primary and secondary seals are continuous all around the gasket. The gasket has an excellent salability, reducing leaks to the environment. The bars which seal between the heat exchanger passages are plasma or TIG welded with spot welds at each end. These welds are soft and small to avoid areas of increased resistance to seating.
| MATERIAL FOR METALLIC JACKET | ||
|---|---|---|
|
AISI 316
|
1.4401
|
| Stainless Steel |
AISI321
|
1.4541
|
| Stainless Steel |
AISI 316 Ti
|
1.4571
|
| Monel(NiCu30Fe) |
B172,alloy 400
|
2.4360
|
| Copper |
Copper
|
2.0090
|
| Brass |
Brass Ms 63
|
2.0321
|
| Aluminium |
Aluminium 99.5
|
3.0255
|
| Tatanium |
B348 Gr.1
|
3.7025
|
| Material |
ASTM
|
DIN Materia No.
|
| Low Carbon Steel |
Soft Iron
|
1.1003
|
| Stainless Steel |
AISI 304
|
1.4301
|
Sizes: Gasket Thick — 3.2mm
Gasket Width — 10, 13 and 16mm
Bar Width —8. 10 and 1 3.0mm.
GASKET ORDERING EXAMPLE
Gasket style (Refer to TYPE 1 to 2 5),Shape drawing
Dimensions: OD (Outer Dia.), ID (Inner Dia.),
Materials : Metel or Metal Filler
Gasket thickness
Bar Width
Radius and distance between bars or center line of bars
