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Ningbo Famedo Sealing Products Co., Ltd.

Spiral Wound Gaskets, Metal Flanges, Cylinder Gaskets manufacturer / supplier in China, offering ASME B16.20 Ss316 Spiral Wound Gaskets, High Quality FKM/Ffkm/FPM/Aflas/Viton Rubber O Ring&High Temperature Flourrubber Gaskets, Professional Automobile Rubber Parts &Bumper&Mounting Rack&Rubber Washers and so on.

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Supplier Homepage Product spiral wound gaskets ASME B16.20 Ss316 Spiral Wound Gaskets

ASME B16.20 Ss316 Spiral Wound Gaskets

FOB Price: Get Latest Price
Min. Order: 1,000 Pieces
Production Capacity: 1000000PCS/Month
Transport Package: Wooden Case
Payment Terms: L/C, T/T, Western Union, Money Gram

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Basic Info
  • Model NO.: FMD005-1
  • Function: Fixed Sealing, Hole Sealing, Shaft Sealing
  • Shape (For Gasket): Flat Gasket
  • Standard: Standard
  • Origin: Ningbo, China
  • Style: ANSI B16.5,API605,JIS,Jpi
  • Application: Auxiliary Seal, Junction Surface Seal, Flange Seal, Hydroseal, Pump Seal
  • Material: Metal
  • Specification: customised
  • HS Code: 8484100000
Product Description
The metal spirally-wound gasket adopts high-quality SUS304 or SUS316 ("V" or "W"shape) metal strips, other alloy materials and some flexible materials like graphite, asbestos, PTE and non-asbestos, which are overlapped and wound spirally with each other. The metal strips are fixed on the initial and terminal ends by means of spot welding. The metal spirally-wound gasket has the best resilien ce among the semi-metal hermetic gaskets. Its structural density can be made subject to different locking forces. Also the internal and external steel rings can be used to control its maximum compaction. It's not demanding for the surface precision of the flange sealing surface contacting the spirally-wound gasket. It's especially applicable for such occasions as uneven load, slack joint, periodical changes of temperature and pressure, impact or vibration. It's an ideal static seal element for flange connection in valves, pumps, heat exchangers, towers, manholes,handholes and so on.
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.
ASME B16.20 Ss316 Spiral Wound Gaskets

Structural material of metallic wrapping pad:
FillingSteel bandInner ringOuter ring
Asbestos wrappingSUS 304Carbon steelCarbon steel
Graphite wrappingSUS 316SUS 304SUS 304
Teflon wrappingSUS 316LSUS 316SUS 316
  SUS 316LSUS 316L
FillingTemperature(ºC)Max operating pressure(kg/cm2)
Asbestos wrapping-200~550250
Graphite wrapping-150~450100
Teflon wrapping240~260100

The following table lists metallic materials for inner ring and wrapping:
Product nameAISIHardness(HB/HV)Temperature(°C)
304 Stainless steel     304     130~180     -250~+550
316 Stainless steel316130~180-100~+550
316L Stainless steel316L130~190-100~+550

Flange type and form of wrapping pad:
Flange typeSpiral 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

Key technical parameter of metallic wrapping pad:
Wrapping pad coefficientm=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 pressurey=68MPa
ASME B16.20 Ss316 Spiral Wound Gaskets 
ASME B16.20 Ss316 Spiral Wound Gaskets
ASME B16.20 Ss316 Spiral Wound Gaskets
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