Asme/ANSI B16.20 Metal Spiral Wound Gaskets, Flange Gaskets, Valve Gaskets
Basic Info
Model No.: ASME/ANSI B16.20 metal spiral wound gaskets
Product Description
Model NO.: ASME/ANSI B16.20 metal spiral wound gaskets Application: Flanges, Valaves Performance: Corrosion Trademark: C&N Material: Metal Rubber Type: Oil Seal Standard: Standard, Nonstandard Origin: China
tructural 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):
tructural 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 Contact us if you need more details on Asme B16.20 Gaskets. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Spiral Wound Gaskets、Metal Spiral Wound Gaskets. 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
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