Flange Gasket, Asme B16.20 Spiral Wound Gaskets, Ring Joint Gaskets
Basic Info
Model No.: gasket
Product Description
Model NO.: gasket Application: Valve Performance: High Pressure Standard: Standard, Nonstandard Specification: ANSI B16.20 Material: Metal Rubber Type: Oil Seal Shape: O-Ring Trademark: C&N Origin: China Application scope of spirally-wound gasket:
Sealing of flange connection in pipelines, valves, pressure containers, condensers, heat exchangers, towers, manholes, handholes and so on in such industries as petroleum, chemical engineering, metallurgy, electricity, shipping and machinery.
Structural material of metallic wrapping pad:
The following table lists metallic materials for inner ring and wrapping:
Outer ring is often made from carbon steel subject to anti-corrosive treatment.
Flange type and form of wrapping pad:
Wrapping pad thickness tolerance:
Key technical parameter of metallic wrapping pad:
The following table refers to tolerances for the diameter of wrapping pad (namely the nominal pipe diameters for the use of flange):
Sealing of flange connection in pipelines, valves, pressure containers, condensers, heat exchangers, towers, manholes, handholes and so on in such industries as petroleum, chemical engineering, metallurgy, electricity, shipping and machinery.
Structural material of metallic wrapping pad:
Filling | Steel band | Inner ring | Outer ring |
Asbestos wrapping | SUS 304 | Carbon steel | Carbon steel |
Graphite wrapping | SUS 316 | SUS 304 | SUS 304 |
Teflon wrapping | SUS 316L | SUS 316 | SUS 316 |
| | SUS 316L | SUS 316L |
Filling | Temperature(ºC) | Max operating pressure(kg/cm2) |
Asbestos wrapping | -200~550 | 250 |
Graphite wrapping | -150~450 | 100 |
Teflon wrapping | 240~260 | 100 |
The following table lists metallic materials for inner ring and wrapping:
Product name | AISI | Hardness(HB/HV) | Temperature(°C) |
304 Stainless steel | 304 | 130~180 | -250~+550 |
316 Stainless steel | 316 | 130~180 | -100~+550 |
316L Stainless steel | 316L | 130~190 | -100~+550 |
Outer ring is often made from carbon steel subject to anti-corrosive treatment.
Flange type and form of wrapping pad:
Flange type | Spiral Wound Gasket form |
Flat face flange(F.F) | Wrapping pad with outer ring only |
Wrapping pad with inner and outer rings | |
Raised face flange(R.F) | Wrapping pad with outer ring only |
Wrapping pad with inner and outer rings | |
Male and female flange(M & F) | Basic wrapping pad |
Wrapping pad with inner ring only | |
Tongue and groove flange(T & F) | Basic wrapping pad |
Wrapping pad with inner ring only | |
Flat and groove flange(F & G) | Basic wrapping pad |
Wrapping pad with inner ring only |
Wrapping pad thickness tolerance:
Item | Thickness(mm) | Tolerances(mm) |
Gasket thickness | 4.5, 3.2 | +0.2 -0.1 |
Ring thickness | 3.0 | ±0.24 |
Key technical parameter of metallic wrapping pad:
Wrapping pad coefficient | m=2.5-4 |
Wrapping pad service pressure | ≤25MPa |
Wrapping pad service temperature | -196ºC-700ºC(Oxidizing medium no higher than 600ºC) |
Wrapping pad minimum pretension specific pressure | y=68MPa |
The following table refers to tolerances for the diameter of wrapping pad (namely the nominal pipe diameters for the use of flange):
Note: We also tailor products based on JIS, JPI or customer requirement Ordering information: The following parameters should be specified during ordering for metallic wrapping pad Example: 1. Type of metallic wrapping pad: A B C D 2. Flange standard: ASME B16.20 3. Pipe through diameter, pressure rating: 2"150Lbs 4. Material: inner ring SS316; metallic wrapping belt SS316; packing belt: graphite; outer ring; carbon steel Spiral Wound Gasket is the ideal gasket in the semi-metallic category. A narrow strip of V-shap metal hoop is spirally wound under tension with a filler cushion between the lami nation of the metal and is spot-welded at both ends. This unique construction of a spring-like metal and soft filler provides gasket excel-lent characteristics. Resistance to high temperature and high pressures. Great resilience which allows the gasket to adjust automatically to change in operating conditions, such as pressure and thermal shocks, vibrations etc. Contact us if you need more details on Flange Gasket. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Spiral Wound Gasket、B16.20 Spiral Wound Gasket. If these products fail to match your need, please contact us and we would like to provide relevant information. Product Categories : Spiral Wound Gasket Premium Related Products Other Products
Hot Products ASME Explosive Cladding Steel Plates for Pressure Vessel, Explosion Bonded Clad Plates, Carbon+Duplex Explosion Cladding PlateJIS F 7309 Cast Iron 16k Globe ValveASTM B16.5 A105 Carbon Steel Reducing FlangeUns S32205, Duplex 2205 Stainless Steel Pipe Fitting Elbow Tee ReducerBrass Flanges, Brass Forged Flanges, Brass Forging FlangesS31803 S32750 S32760 Stud Bolts, S31803 S32750 S32760 Hex Bolts, DIN933 Bolts, D934 Nuts, Super Duplex Stainless Steel BoltsTitanium ASTM B363 Gr1, Gr2, Gr3, Gr7, Gr9, Gr11, Gr12 Elbow Pipe Fittings, Titanium Pipe Fitting (Elbow, U bend, Reducer, Tee, Stub End etc.)SABS 1123 Sans 1123 FlangeFlange Gasket, B16.20 Spiral Wound GasketB16.11 Pipe Fitting, Socket Weld Fittings, Thread Pipe Fitting, Scoket ElbowAluminum 6061 T6 Forged Welding Neck Flange, Plate Flange, Aluminum 6061 T6 FlangeJIS B2220 5k 10k 16k Flange, Slip on FlangeSpectacle Blind Flange, Figure 8 Flange, Stainless Steel Spectacle Blind Flange,DIN 2576 Pn10 Plate Flange, DIN2576 Pn10 Slip on FlangeForged Steel FlangeASTM A234 Wpb Elbow Butt Welding Pipe Fitting |