Quick Details
Place of Origin: Hebei, China (Mainland)
Brand Name: c&n
Model Number: Spiral Wound Gasket
Material: Stainless Steel
Shape: Ring Gasket
Standard or Nonstandard:Standard
RAW MATERIAL: 304/316/316L
FILLING:
THICKNESS: 3-4.5MM
Packaging & Delivery
| Packaging Details: |
plywood case |
| Delivery Detail: |
15-30 days after deposit |
PRODUCT INTRODUCTION
ASME B16.20 Spiral Wound Gasket
Material: Stainless Steel
The Stainless Steel Spiral Wound Gasket adopts high-quality SUS304 or SUS316
("V" or "W"shape) metal strips, other alloy materials
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.
Technology
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 |
| 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 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 |
Application
Spiral Wound Gasket 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.
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