出口退税84841000金属缠绕垫片
Code: SUNWELL SW-600Range
Spiral wound gasket is formed of V-shaped metallic strip and soft non-metallic filler by means of piled, spiral wound gasket and connected its end and beginning by dot welded. Depend on its excellent compression resilience, it is suitable for sealing sports where the alteration of temperature and pressure are frequent.
It can be used as the static sealing element of pipe, valve, pump, thermal exchange, condensing tower, plain hole and man hole of flange, etc. It has been widely applied in the fields of petrochemical, mechanical factory, power station, metallurgy, shipbuilding, medical and pharmaceutical unclear power station and navigation, etc.
Note: Please offer the detailed drawing, while the gasket is used in thermal exchanger with some ribs.
Types of Spiral Wound Gaskets:
SUNWELL SW600-R Basic Style Spiral Wound Gasket
Basic construction style, inner and outer diameters are reinforced with several plies of metal without filler to give greater stability and better compression characteristics.
Suitable for tongue and groove or male and female or grooved to flat face flange assemblies.
SUNWELL SW600-RIR Spiral Wound Gasket with Inner Ring
Solid inner metal ring acts as a compression stop and fills the annular space between flange bore and the inside diameter. Designed to prevent accumulation of solids, reduce turbulent flow of process fluids and minimise erosion of flange faces.
Suitable for male and female flanges.
SUNWELL SW600-CG Spiral Wound Gasket with Outer Ring
It’s an external ring which accurately center gasket on flange face, provides additional radial strength to prevent gasket blow-out and acts as a compression stop.
A general purpose gasket suitable for use with flat face and raised face flanges, class 900 and above an internal ring is recommended.
SUNWELL SW600-CGI Spiral Wound Gasket with Inner & Outer Rings
A style CG gasket fitted with internal ring which gives an additional compression limiting stop and provides heat and corrosion barrier protecting gasket windings and preventing flange erosion.
Suitable for use with flat face flanges and specified for high pressure & temperature service, class 900 and above or where corrosive or toxic media are present.
Other styles available upon request.
Materials:
Ring & Strip Materials |
|||||||
|
Minimum |
Maximum |
|
Guide Ring Color Code |
|||
Material |
F |
C |
F |
C |
Abberviation |
||
SS304 |
-320 |
-195 |
1400 |
760 |
304 |
Yellow |
|
SS316L |
-150 |
-100 |
1400 |
760 |
316L |
Green |
|
SS347L |
-150 |
-100 |
1400 |
760 |
317L |
Maroon |
|
SS321 |
-320 |
-195 |
1400 |
760 |
321 |
Turquoise |
|
SS347 |
-320 |
-195 |
1700 |
925 |
347 |
Blue |
|
Carbon Steel |
-40 |
-40 |
1000 |
540 |
CRS |
Silver |
|
Alloy 20 |
-300 |
-185 |
1400 |
760 |
A-20 |
Black |
|
Hastelloy B3 |
-300 |
-185 |
2000 |
1090 |
HAST B |
Brown |
|
Hastelloy C276 |
-300 |
-185 |
2000 |
1090 |
HAST C |
Beige |
|
Incoloy 800 |
-150 |
-100 |
1600 |
870 |
IN 800 |
White |
|
Incoloy 825 |
-150 |
-100 |
1600 |
870 |
IN 825 |
White |
|
Inconel 600 |
-150 |
-100 |
2000 |
1090 |
INC 600 |
Gold |
|
Inconel 625 |
-150 |
-100 |
2000 |
1090 |
INCO 625 |
Gold |
|
Inconel X750 |
-150 |
-100 |
2000 |
1090 |
INX |
No Color |
|
Monel 400 |
-200 |
-130 |
1500 |
820 |
MON |
Orange |
|
Nickel 200 |
-320 |
-195 |
1400 |
760 |
NI |
Red |
|
Titanium |
-320 |
-195 |
2000 |
1090 |
TI |
Purple |
|
Filler Materials |
|||||||
|
Minimum |
Maximum COT |
|
Stripe Color Code |
|||
Material |
F |
C |
F |
C |
Abbreviation |
||
Flexible Graphite |
-350 |
-212 |
950 |
510 |
F.G. |
Gray |
|
PTFE |
-400 |
-240 |
500 |
260 |
PTFE |
White |
|
Ceramic |
-350 |
-212 |
2000 |
1090 |
CER |
Light Green |
|
Mica Graphite |
-350 |
-212 |
1100 |
590 |
MICA-GRA |
Pink |
* According to ASME B 16.20 Standard
Standard:
SUNWELL can produce according to ASME, BS, JIS and EN (DIN) standards or client request.
The winding thickness of Spiral wound gasket is 4.45mm,the thickness of inner ring and outer ring are 2.97mm-3.33mm
Dimensions for Spiral wound gasket per ASME B16.20 to suit ASME B16.5 flanges.
> The winding thickness: ±0.005’’(0.13mm) measured across the metallic portion of the winding not including the filler;
> The winding outside diameter
1. NPS 1/2’’ through NPS 8’’ is ±1/32’’ (±0.8mm)
2. NPS 10’’ through NPS 24’’ is +1/16’’ ~ -1/32’’ (+1.5mm ~ -0.8mm
> The winding inside diameter
1. NPS 1/2’’ through NPS 8’’ is ±1/64’’ (±0.4mm)
2. NPS 10’’ through NPS 24’’ is ±1/32’’ (±0.8mm)
> The guide ring outside diameter: ±1/32 (±0.8mm)
> The guide ring and inner ring thickness shall be from 0.117’’ (2.97mm) to 0.131’’ (3.33mm)
> The inner ring inside diameter:
1. NPS 1/2’’ through 3’’ is ±1/32’’ (±0.8mm)
2. NPS 4’’ through 24’’ is ±1/16’’ (±1.5mm)
Dimensions for spiral wound gaskets to suit flange facing per EN1514-2
SUNWELL Style CG and CGI gasket centering rings are zinc electric plated or electrostatic spray providing superior corrosion resistance. It is also facilitates easier identification of the gasket as the plating does not fill in the identification marking as is prone to powder coatings.
SUNWELL Spiral wound gaskets are packaged with the utmost care to prevent damage during shipping to the job site.