spiral wound gasket

GOT-400 Spiral Wound Gasket is accumulated, hovered and wound, and spot welded beginning and end terminal by V-shaped or W-shaped stainless steel and non metal filler, which has good compression elasticity, and is suitable for the sealing parts with temperature and pressure altering violently. It is a static sealing parts used for such flange connecting joints as pipeline, valve, bump, heat exchanger, tower, manhole, and hand hole, etc. It is widely applied in departments as petrochemical, mechanical, electric power, metallurgy, boat building, medical, atomic energy, and aerospace, etc. Product standard: We can produce according to standards as ANSI B 16.20，MSS SP-44，API 605，DIN，JIS，JPI，BS 1560，JG/T，GB/T，HG，SH, etc. Or the demands can be designated in detail by clients. E.g. the gasket used for heat exchanger and with ribs, please provide the detailed drawings. Gasket type: Product name Code Suitable for Expression example Basic type metal spiral wound gasket 400 A Tenon slot surface 304/PTFE Metal spiral wound gasket with inner ring 400 B Male-and-female face 304 304/FG Metal spiral wound gasket with outer ring 400 C Convex surface 304/ASB CS Metal spiral wound gasket with inner and outer ring 400 D 304 304/FG CS Metal spiral wound gasket with heat exchanger 400 T Heat exchanger 304/FG with one rib Special-shaped metal spiral wound gasket 400 S Special-shaped Elliptic If the gasket is used for heat exchanger, generally we recommend the one with φ3.2mm stainless steel inner ring. The narrow-band form is divided into sticking type and covering type Selectable material: Steel belt and the inner and outer ring profile Filler General thickness mm Name Code Name Code Appropriate Temperature ℃ V-shape Gasket / Ring W-shape Gasket / Ring Carbon steel CS Asbestos ASB 500 3.2/2.0 4.5/3.0 4.8/3.0 5.5/4.0 7.5/5.0 Stainless steel 304(L),316(L) Graphite FG 650 MONEL Mon PTFE PTFE 250 Ni, Ti Ni，Ti Mica MICA 950 Inconel INC Ceramic CER 1000 Hastelloy, Zr HAST，ZIRC Non-asbestos NAF 300 Generally the material of the inner ring is steel belt, to satisfy the medium and the working condition demands, The outer ring material is the same as the pipe and the related equipment shell, the carbon steel outer ring is relatively economic. The detailed order should indicate the detailed material, the used standard, the inside exhaust pipe nominal diameter DN, the pressure grade PN, or indicate the detailed size: D1：inner diameter of the inner ring；D2: outer diameter of the inner ring； D3：inner diameter of the outer ring；D4: outer diameter of the outer ring Writing methods：D1×D2×D3×D4 The default thickness of the gasket is 4.5mm，and the ring 3mm

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