Jacketed Gasket
Description
The Jacketed Gasket is a composite gasket composed of a non-metallic material as a core material and a metal sheet of 0.25-0.5 mm coated with a specific cold working process. And corrugated type coating, is the most traditional kind of sealing gasket, metal sheet can be selected according to the elastoplasticity, heat resistance and corrosion resistance of the material. Mainly brass, aluminum, soft iron, stainless steel, Mongolia Nail alloy, titanium, etc., non-asbestos core materials generally include asbestos rubber sheets, non-asbestos sheets, PTFE sheets, graphite composite sheets, ceramic fiber sheets, and the like. According to different materials, it can be combined into 304 stainless steel asbestos coated gaskets, stainless steel coated graphite coated gaskets and other forms.
Features
1. It has the same corrosion resistance and similar heat resistance as the coated metal.
2. Non-metallic flexible filling material enables the gasket to achieve a better sealing effect at a lower pressing force.
3. Can be made into various forms of shaped gaskets, such as oval, square ribbed or more complex shapes to meet the needs of various heat exchanger tubes and non-circular pressure vessel seals.
4. Compared with non-metallic soft gaskets, Jacketed gaskets are not easily damaged, non-stick, or corroded on flange sealing surfaces under frequent disassembly conditions, and have high strength.
Main Parameter
Material |
Temperature ℃ |
Max. Working Pressure |
Applicable conditions |
Compression ratio % |
Rebound rate % |
Stress relaxation rate% |
Expanded graphite |
-220--550 |
250 BAR |
Corrosive medium |
|
≥17 |
≤18 |
PTFE |
-100-- 200 |
100 BAR |
Corrosive medium |
18--30 |
≥15 |
≤13 |
Expanded PTFE |
-100--260 |
200 BAR |
Corrosive medium |
25--35 |
≥25 |
≤13 |
Non-asbestos material |
-100--350 |
100 BAR |
General air tightness |
18--30 |
≥19 |
≤28 |
Cloud mother |
-150--800 |
100 BAR |
Special high temperature |
18--30 |
≥19 |
|
Ceramic fiber |
-200--1090 |
100 BAR |
Special high temperature |
18--40 |
≥19 |
|