Active Member
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[China]
Address: P.O.Box 19,Yangzhong,Jiangsu,China
Contact name:Alice
Zhenjiang Chunhuan Sealing Materials Co., Ltd. |
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Material 304ss 316ss Metal Ring Gasket Filler PTFE Spiral Wound Gasket Size ASME B 16.20-2011
CHARECTERISTIC
1. The applicable working condition range is wide. Can resist high temperature, high pressure, and adapt to the use condition of ultra-low temperature or vacuum. By changing the material combination of the gasket, the chemical corrosion problem of the various media to the gasket can be solved.
2. The stress compensation ability is strong. The sealing performance is stable and reliable at the station with frequent temperature and pressure fluctuation.
3. The sealing performance is excellent.
4. The surface accuracy requirement for flange sealing contact with the gasket is not high. 5.The installation is convenient, and the pre-tightening pressure of the gasket is low.
STANDARD
·HG20610 /HG20631 / ·ASME B16.20/·DIN / BS 3381-1999
·JIS B2404-1999 JIS TS-1998
·GB/T4622.2 /·JB/T4719 /SH3407 and so on
DESCRIPTION OF PRODUCTS
The metal spiral wound gasket (basic type) is made of high-quality SUS304, SUS316 ("V" or "W" shape) metal bands and other alloy materials and graphite, asbestos, polytetrafluoroethylene, non-asbestos and other soft materials are overlapped and spiral wound At the beginning and end, the metal band is fixed by spot welding.
FILLED MATERIAL AND MAIN PROPERTIES
| Filler | Temperature(℃ ) | Max Pressure | Media | Compression(% ) | Rebound(% ) | Relaxation(%) |
| F.G. | -220--550 | 250 BAR | corrosive | 18--30 | ≥17 | ≤18 |
| ASB | -150--450 | 100 BAR | vulgaris air tightness | 18--30 | ≥19 | ≤28 |
| PTFE | -200-- 250 | 100 BAR | corrosive | 18--30 | ≥15 | ≤13 |
| NAF | -100--350 | 100 BAR | vulgaris air tightness | 18--30 | ≥19 | ≤28 |
| MICA | -150--800 | 100 BAR | H-TEMP | 18--30 | ≥19 | / |
| CER | -200--1090 | 100 BAR | Ultra-TEMP | 18--40 | ≥19 | / |
APPLICATION
* Suitable for uneven load, easy relaxation of joint force, periodic change of temperature and pressure, impact or vibration.
* Is the valve, pump, heat exchanger, tower, manhole, hand hole and other flange connections of the static seal original,
* Widely used in petrochemical, machinery, power, metallurgy, shipbuilding, medicine, atomic energy and aerospace and other departments.
MATERIALS FOR OD AND ID,MAIN PROPERTIES
| Materials | Mark | Hardness(HB) | Temperature(°C) |
| Carbon steel | CS | 120 | -40~+540 |
| SUS 304 | 304 | 130~180 | -195~+550 |
| SUS 316L | 316L | 130~180 | -100~+550 |
| SUS 321 | 321 | 130~190 | -195~+760 |
| HASTELLOR-B2 | HASTB | 215 | -185~+1090 |
| INCONEL-600 | INC600 | 150 | -100~+1090 |
| MONEL-400 | MON | 150 | -130~+820 |
| Ti | T2 | 215 | -195~+1090 |
