Heat exchanger gaskets · Made to drawing · Mumbai, IndiaMetal Jacketed Gaskets
A soft filler wrapped in a thin metal jacket, built for heat exchangers, vessels and manways. Pass-partition ribs, large diameters and odd shapes made to your exchanger drawing.
A soft core in a metal coat.
The filler gives the gasket resilience. The metal jacket protects it from heat and the process fluid and carries the bolt load. Pass-partition ribs seal between the passes of the exchanger.
3D renderMetal jacket
Copper, soft iron, stainless steel or alloy, formed around the filler in one piece or with welded joints for large sizes.
Soft filler
Graphite, ceramic or non-asbestos filler that fills flange imperfections and keeps the gasket resilient.
Pass partition ribs
Welded into the gasket to match your exchanger channels, in any layout your drawing shows.
Four ways to seal an exchanger.
We make all four heat exchanger gasket types, so we can recommend the right one for your pressure, temperature and flange finish.
Double jacketed
Filler fully enclosed by two overlapping metal shells. The standard heat exchanger gasket.
Heat exchangersSingle jacketed
Filler covered on one face and both edges. For low pressure and narrow flanges.
Low pressureCorrugated metal
Corrugated metal ring, bare or faced with graphite or PTFE. Sizes up to about 4000 mm.
Low bolt loadKammprofile
Serrated solid metal core with graphite or PTFE facings. Tight seal at low stress.
DIN 2697 groovedJacket and filler, matched to the duty.
The jacket must resist the process fluid and be softer than the flange. The filler sets the temperature limit.
Jacket metal
Formed from strip or sheet
Filler
Inside the jacket
Copper is the classic. Soft, easy to seat and good for most exchanger services. Stainless and alloys for corrosive fluids.
Every exchanger is different.
Real heat exchanger gaskets from our works, each one made to a customer drawing.
See all photos in our gasket gallery →
Grids, giants and rush jobs.
The exchanger gaskets a stockist cannot hold.
Complex rib layouts
Multi-pass channels with grid ribs, welded to match your exchanger drawing exactly.
Large diameters
Large jacketed and corrugated gaskets with welded joints for big exchangers and vessels.
Shutdown quantities
Repeat exchanger gaskets made in batches and packed per exchanger for planned shutdowns.
Specifications
- Types
- Double jacketed, single jacketed, corrugated, kammprofile
- Shapes
- Round, oval, oblong, with pass partition ribs, to drawing
- Standards
- ASME B16.20, TEMA, DIN 2697 (kammprofile), or to drawing
- Jacket
- Soft copper, soft iron, SS 304/316/321/347, Monel, Inconel, titanium
- Filler
- Flexible graphite, ceramic, PTFE, non-asbestos
- Facings
- Graphite or PTFE layers on kammprofile and corrugated
- Size
- Small to about 4000 mm; large sizes welded from segments
- Thickness
- Typically 3.2 mm jacketed; to design for others
- Inspection
- Third-party inspection by LR, BV, TÜV, SGS and others
Types of metal jacketed gaskets.
From the JaySeal catalogue. Jacketed gaskets are made to ASME B16.20 (tables 21, 22, 23) or the customer drawing.
Jacketed gasket types and where they are used
| Type | Construction | Typical use |
|---|---|---|
| Single jacketed | Filler covered by a metal jacket on one face | Where flanges are poor or pitted |
| Double jacketed | Filler fully enclosed in a metal jacket | High temperature or corrosive service; heat exchangers |
| Double jacketed corrugated | Corrugated jacket over the filler | Reduced contact area; uneven flanges |
| Single corrugated | Plain corrugated metal, no filler | Mainly valve applications |
Jacket metals: soft iron, all grades of steel, copper, brass, aluminium, Monel, Inconel, titanium, nickel and Incoloy. Fillers: graphite, PTFE, CAF / non-asbestos.
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Jacketed gaskets, answered.
What is a metal jacketed gasket?
A gasket made of a soft filler, such as graphite, wrapped in a thin metal jacket. It is used mainly on heat exchangers, where it can include pass-partition ribs to seal between the passes.
What is the difference between single and double jacketed gaskets?
A double jacketed gasket encloses the filler completely in two overlapping metal shells and suits most heat exchanger duty. A single jacketed gasket covers one face and the edges and suits low pressure, narrow flanges.
When should I use a kammprofile gasket instead?
Kammprofile gaskets seal at lower bolt stress and tolerate flange movement better, so they are a good upgrade where jacketed gaskets leak or flanges are hard to bolt up.
Can you make gaskets with pass partition ribs to our drawing?
Yes. Send the exchanger drawing or channel layout and we make the gasket with ribs welded in place, in the jacket metal and filler you specify.
What do you need to quote heat exchanger gaskets?
The drawing or OD, ID and rib layout, gasket type, jacket metal, filler, thickness and quantity, plus the design pressure and temperature if you want our recommendation.
Send your drawing.
Get a price.
Tell us the gasket type, size or drawing, material, pressure class, standard and quantity. Our engineers reply with price and delivery.
Quick enquiry
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