SPIRAL WOUND GASKETS/rubber valve cover gaskets
Spiral wound gasket is formed by preloading with corrugated metal and nonmetal with alternating overlapping spiral wound made, and add reinforcement ring according to working conditions. Because it has multi-channel sealing, high temperature, corrosion-resistant, less demanding on the flange sealing surface roughness and other characteristics, so it is widely used in power stations, aviation, petrochemical, valves and other industries.
Medium: steam, hydrogen, natural gas, pyrolysis gas, oil, acid, alkali, salt solutions, etc.
Benefits:
1, spiral wound gasket has good compression rate and resilience.
2, spiral wound gasket with the appropriate plasticity, after pressing the sealing surface can adapt to uneven sealing surface and fill the gap, in order to ensure good sealing performance in case of a system of alternating temperature and pressure.
3, spiral wound gasket has good tensile strength and elongation.
4, spiral wound gasket has excellent corrosion resistance, it will not be destroyed in some extreme medium, does not produce a large expansion and contraction.
5, spiral wound gasket does not soften at high temperatures, do not creep; non-hardening at low temperatures, does not shrink.
6, spiral wound gasket with sufficient strength, under external loading conditions, not to be crushed; under high pressure, not to be blown out.
YDAJ basic mode
Consists of a metal belt and filling material wrapped, applicable to the concave and convex flanges, mortise flange and groove flange.
YDBJ ring
The addition of the metal inner ring on the basic type as the pressure retaining body, also fill the flange and sealing of the inner edge of the air
Gap, the design can prevent the solid accumulation, reduce fluid impact, and make the flange surface erosion to minimize.
YDC type outer ring
Using the outer ring, the gasket can be placed in the center of the flange accurately, well provide additional stress to prevent the gasket burst, into
A compression check point. Generally applicable to the plane and raised face flanges.
YDD type of inner and outer ring
Add in the inner outer ring based on internal compression as a stopping point, also be resistance body heat and corrosion, protection
The pad plate sealing surface of flange, to prevent corrosion. Suitable for the plane and raised face flanges, especially in high temperature and high pressure work conditions.
Metal material temperature table
|
| Material | Min
ºF ºC | Max
ºF ºC | Abbreviation
mark |
| 304SS | -320 | -195 | 1400 | 760 | 304 |
| 306LSS | -150 | -100 | 1400 | 760 | 316L |
| 321SS | -320 | -195 | 1400 | 760 | 321 |
| 347SS | -320 | -195 | 1700 | 925 | 347 |
| WCB | -40 | -40 | 100 | 540 | CRS |
| 20 Cb-3(Alloy) | -300 | -185 | 1400 | 760 | A-20 |
| HASTELLOYB2 | -300 | -195 | 2000 | 1090 | HASTB |
| HASTELLOYC276 | -300 | -185 | 2000 | 1090 | HASTC |
| INCOLOY800 | -150 | -100 | 1600 | 870 | In800 |
| INCONEI600 | -150 | -100 | 2000 | 1090 | INC600 |
Luoyang Shengquan Industrial Co., Ltd. is located in Luoyang offshore industrial park, the company covers an area of 90000 square meters, is the national Twelfth Five Year Plan key support industry.
The company focuses on manufacturing sealing materials and technology development, with 20 professional and technical team, 50 sets of CNC lathes and other advanced production equipment, 28 years of rich experience in manufacturing, exporting 50 million dollars in annual average ranked peer forefront. The company in 2010 passed the ISO9001: 2008 quality system certification, and access to special equipment in the form of experimental certificate, patent certificates of various products. Our main products include: All types of seals, filters, metal-coated pads, all kinds of packing, heat exchanger gaskets, high temperature and high pressure flexible plate gaskets, teflon rods, plates and special models seals. Over the years, the company has always been to science and technology as the primary productive force, adhere to the quality of the first legislature of the plant, adhere to honesty and trustworthiness of the operation, and is committed to improving the quality of the development and application of products and new products, new materials, new technologies, the user has won high reputation. Selling products in petroleum, chemical, steel, electricity, fertilizer and other industries in the world across the country.
