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Hot Selling Expanded PTFE Gasket
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| Model No. : | MK-1711 |
|---|
Hangzhou St. Michael Seals & Packing Co., Ltd.
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Product description
Expanded PTFE gaskets can be used to seal fluid pressure up to 250 bar cryprinices temperature as low as -200°C and up tp elevated temperature of 2000°C. Products are widely used in the oil,gas,petrochemical process and engineering industries.
1. Type of Spiral wound gaskets.
1) Basis form
2) With inner ring
3) With outer ring
4) With inner & outer ring
2. Structure type
Filler material Hoop Inner ring Outer ring
PTFE SUS316L SUS316 SUS316
Graphite SUS316 SUS304 SUS304
Asbestos SUS304 Carbon steel Carbon steel
3. The material of inner ring and winding metal.
Trade name AISI Hardness(HB/HV) Temperature
304 Stainless steel 304 130 ~ 180 -250~550
316 Stainless steel 316 130 ~ 180 -100~550
316L Stainless steel 316L 130 ~ 190 -100~550
4. The outer ring is generally manufactured from carbon steel with an anti-corronsion treatment. The table below can be used for determining the correct filler.
Filler material Temperature(°C) Max operating pressure(kg/cm²)
Graphite -200~550 250
Asbestos -150~450 100
PTFE -240~260 100
5. Tolerances of thickness
Item Thickness(mm) Tolerances(mm)
Gasket thickness 4.5, 3.2 +0.2-0.1
Ring thickness 3.0 ±0.24
Other products
1. Type of Spiral wound gaskets.
1) Basis form
2) With inner ring
3) With outer ring
4) With inner & outer ring
2. Structure type
Filler material Hoop Inner ring Outer ring
PTFE SUS316L SUS316 SUS316
Graphite SUS316 SUS304 SUS304
Asbestos SUS304 Carbon steel Carbon steel
3. The material of inner ring and winding metal.
Trade name AISI Hardness(HB/HV) Temperature
304 Stainless steel 304 130 ~ 180 -250~550
316 Stainless steel 316 130 ~ 180 -100~550
316L Stainless steel 316L 130 ~ 190 -100~550
4. The outer ring is generally manufactured from carbon steel with an anti-corronsion treatment. The table below can be used for determining the correct filler.
Filler material Temperature(°C) Max operating pressure(kg/cm²)
Graphite -200~550 250
Asbestos -150~450 100
PTFE -240~260 100
5. Tolerances of thickness
Item Thickness(mm) Tolerances(mm)
Gasket thickness 4.5, 3.2 +0.2-0.1
Ring thickness 3.0 ±0.24
Other products
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