Shaanxi Flourish Industrial Co., Ltd.
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The metal ring gasket is a solid metal gasket with an octagonal or elliptical cross-sectional shape processed from metal materials, which has a radial self-tightening sealing effect. Therefore, the metal ring gasket is in contact with the inner and outer sides (mainly the outer side) of the trapezoidal groove of the flange by the gasket, and the seal is formed by pressing. Metal ring gasket is used in pipe flanges, valves, pressure vessels, submarine, high-speed joint surface, high temperature and high pressure valve cover and other pressure joint.
Types:
Ring-joint gaskets shall be either octagonal or ovalin cross section.
Size:
Ring-joint gaskets shall be identifed by an R,RX,or BX number that relates to fange size (NPS),pressureclass,and the appropriate fange standards(ASMEB16.5,ASME B16.47,or API Specification 6A).
| MAXIMUM HARDNESS FOR RING GASKETS | ||
| Ring Gasket Material | Maximum Hardness | |
| Brinell | Rockwell "B"Scale | |
| Soft iron | 90 | 56 |
| Low-carbon steel | 120 | 68 |
| 4-6 chrome 1/2Mo | 130 | 72 |
| Type 410 | 170 | 86 |
| Type 304 | 160 | 83 |
| Type 316 | 160 | 83 |
| Type 347 | 160 | 83 |
1)There are a variety of materials and patterns to suit different design and operation requirements,
2)The new flat bottomed grooved flanges are interchangeable and can be supplied within the shortest possible time.
3)Note: the quality of the metal rings should be lower than the flange 15~20 HB, and the old products are not recommended to be reused.
