Zhenjiang Chunhuan Sealing Materials Co., Ltd.
Zhenjiang Chunhuan Sealing Materials Co., Ltd(Group)
Add to Cart
Factory Price Graphite or PTFE Coated Metal Corrugated Gasket With Good Quality
DESCRIPTION OF PRODUCTS
It belongs to a kind of metal composite gasket, also called corrugated movable pressure gasket, which is first pressed into concentric corrugated shape by metal sheet, which is provided by mechanical support by corrugation, and its resilience is determined by the form adopted, the thickness of metal, the spacing of corrugated and the height of corrugated.
The soft sealing layer material is added according to the need to make the metal corrugated composite gasket have better compressive resilience, because the contact with other sealing surfaces is line contact of multiple concentric circles, so it has labyrinth sealing function. According to the different medium and working conditions, flexible graphite, PTFE, asbestos-free board or some other soft metal can be selected, which can be pasted on the two sides of the gasket, and the sealing property of the soft covering layer and the strength and elasticity of the metal can be used to achieve better sealing effect. In most cases, we recommend graphite as the sealing layer.
APPLICATION
* It can be used for almost any standard industry sealing needs, from standard pipe connections to grate and large container seals (heat exchangers, towers, tanks, tanks).
* Suitable for high temperature and high pressure, flammable, explosive and toxic media fluids.
* In the case of temperature and pressure alternation, metal corrugated composite gaskets can show superior sealing performance.
TYPE,CODE AND THE CLASS OF FLANGE
| Type | Code | Surface of Flange | Thickness(mm) | |
| Sealing Material | Paste layer (single-sided) | |||
| Basic | CH-GMC-A | Tongue and groove surface, concave and convex surface, flat surface and groove surface | 1.5-5.0 | 0.5-1.0
|
| With outer ring | CH-GMC-C | Flat or convex | 1.5-5.0 | 0.5-1.0 |
MAIN PROPERTIES
| Material | Code | TMP ℃ |
Pressure(max) | Applicable conditions | Compression % | Rebound rate % | Stress relaxation rate % |
| E-Graphite | F.G. | -220-+550 | 250 BAR | Corrosive | 18--30 | ≥17 | ≤18 |
| PTFE | PTFE | -100-+200 | 100 BAR | Corrosive | 18--30 | ≥15 | ≤13 |
| E-PTFE | EPTFE | -100-+260 | 200 BAR | Corrosive | 25--35 | ≥25 | ≤13 |
| NON-Asbestos | NA | -100-+350 | 100 BAR | General | 18--30 | ≥19 | ≤28 |
| MICA | MICA | -150-+800 | 100 BAR | EHTMP | 18--30 | ≥19 | / |
| CER | CER | -200-+1090 | 100 BAR | UHTMP | 18--40 | ≥19 | / |
The following table is used to select the material of the metal skeleton of the commonly used metal corrugated composite gasket:
| Material | Code | HB | Extreme temperature (°C) |
| carbon steel | CRS | 120 | -40- +50 |
| 304 | 304 | 130~180 | -195~+760 |
| 304L | 304L | 130~180 | -195~+760 |
| 316L | 316L | 130~180 | -100~+760 |
| 317L - | 317L | / | 100~+760 |
| 321 | 321 | 130~190 | -195~+760 |
| 347 | 347 | / | -185~+760 |
| 20CB-3(ALLOY 20) | A-20 | / | -185~+1090 |
| HASTELLOY-B2 | HAST B | 215 | -185~+1090 |
| HASTELLOY-C276 | HAST C | / | -185~+1090 |
| INCOLOY-800 | IN 800 | / | -100~+870 |
| INCOLOY-825 | IN 825 | / | -100~+870 |
| INCONEL-600 150 | INC 600 | / | -100~+1090 |
| INCONEL-625 | INC 625 | / | -100~+1090 |
| INCONEL-X750 | INX | / | -100~+1090 |
| MONEL-400 | MON | 150 | -130~+820 |
| NICKEL-200 | NI | / | -195~+760 |
| TITANIUM | TI | / | 215 -195~+1090 |
OUR SERVICE
1) Your inquiry will be replied within 2 hours during working time,Within 24hours when rest time.
2) Our working time is 7.30 AM --17:30 PM,Monday to Saturday.
3) General samples time can be arranged within 2--5days.
4) Orders will be produced exactly as request and approved samples.
5) When mass production,we send photos to show the production line.And confirm the estimate time again.
6) At the end of mass production,photos and samples will send to you for approval.You can arrange the inspection.
7) Before shipment,our QC will have inspection to make sure the quality.
8) We always try best to ensure every order to delivery in time.