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| Gasket |
Spiral Wound Gasket |
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DBP Spiral Wound Gasket (SWG) consists of a thin metallic strip and soft non-metallic filler that are simultaneously wound on a rotating mandrel. The metal hoop is pre-formed with a V or W shaped profile, which allows the gasket to act as a spring between the flanges. Further, the hoop provides the basic structural element for the gasket while the non-metal filler material seals small imperfections on the flange surfaces. Depend on its excellent compression resilient, it’s suitable for sealing spots |
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| where the alteration of temperature and pressure are frequent, such as pipes, valves, pumps etc. They are available in all standard the flanges of sizes, e.g. ANSI, API, DIN, JIS, JPI, BS etc. (Pressure≤25Mpa) |
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Recommendation:
Adopt a stainless steel wire inner (φ3.2mm) for exchanger SWG.
Style of narrow tape:
A: Metal double jacket
B: Metal rib bonded with both faces.
Color cord, on request. |
| Style |
Structure |
Flange |
Hoop material |
Filler |
Inner &Outer material |
Size(mm) |
Thickness(mm) |
| Material |
Code |
V- |
W- |
| 6000 |
Basic type |
Groove |
304，304L,316,316L,321, Ta Mon400 Inconel etc. |
Asbestos |
ASB |
Carbon Steel 304(L), 321(L),
316(L), Ta Mon400, Inconel. |
φ16~3000 |
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| 6000 IR |
With inner ring |
Male and Female |
Graphite |
FG |
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4.8 |
| 6000 OR |
With outer ring |
Raised face
Flat face |
PTFE |
PTEE |
3.2 |
5.5 |
| 6000 IOR |
With inner, outer ring |
Mica |
MICA |
4.5 |
4.5 |
| 6000 H |
For heat exchanger |
Heat exchanger |
Ceramic |
CER |
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Metal Jacketed Gasket |
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DBP Metal Jacketed Gasket (MJG) is made from graphite, ceramic, non-asbestos etc. Filler covered with thin metal jacket, such as stainless steel, carbon steel, copper etc., special used in sealing spots of heat exchanger, pressure vessel etc. This gasket highly resistances against blow-out, suitable for high assembly stress. |
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| Filler material |
Jacket material |
Temperature（℃） |
Pressure（Mpa） |
Graphite, Asbestos, Non-asbestos,
Ceramic, PTFE |
Carbon steel |
300 |
≤6.4 |
| Copper |
400 |
≤6.4 |
| 304, 316L etc |
530 |
≤6.4 |
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Metal Eyeleted Flat Gasket |
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IE---Reinforced Gasket with inner eyelet
IO-Reinforced Gasket with inner & outer Eyelets
DBP Metal Eyelet Gasket (MEG) make better than pure cut gaskets, it remains properties of cut gasket, the metal eyelet can offer special protection against blowout and chemical attack, also improve seal-ability due to local higher stress under eyelet. The metal eyelet material is normally SS304 or 316, pressure 6.4~10Mpa.
Style of cut gasket: G+ code of gasket sheet
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G 4004 IO—Tanged metal reinforced graphite gasket with inner & outer eyelets
G 4002 IE----Metal foil reinforced graphite gasket with inner eyelet |
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