This machine is a kind of special equipment for winding during producing the spiral wound gaskets. It adopts certain structural parameter to shape metallic strip and non--metallic filler strip alternately between mould and groove-shape pressing wheel. It can control the diameter force and shearing force effectively by adopting pneumatic and electromagnetic elements so that the technical parameter can be ensured to be invariable and controllable. The machine can complete the winding process automatically by using metallic and nonmetallic long strips and making them feed-in automatically through guide wheel simultaneously, thus it will not be affected by hand operation and the quality is ensured. If this machine is used together with special controller for spiral gaskets, you can set the size of gasket in advance and decreasing the pulling force of the steel strip automatically. The size of the spiral gasket can be controlled automatically and the welding of the gaskets can also be finished automatically (for the diameter of the gasket is larger). In this way, you can improve your efficiency greatly. Main technical parameter: Voltage:380V50 HZ Power:0.8 KW1380rpm Mini winding diameter:DN50 Max winding diameter:DN800 Width of winding sealing plane:50mm Cylinder travel:100mm(60mm is used) Pneumatic pressure:0-0.8Mpa Voltage regulator:0-15V Automatic attenuation voltage:0-3V Dimension 1300 X 2000 X 700mm Weight:300KG.
SPIRAL WOUND GASKET OFFERS HIGH COMPRESSIBILITY AND RECOVERY
Spiral Wound Gasket is composed of a steel outer ring, a spiral wound sealing strip filler and a special steel inner ring. It is created by winding alternating strips of metal and filler material.
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Outer guide ring is fitted to centralise the gasket between the bolts and to act as a compression limiter. Inner ring is fitted to reduce the gap between the inside diameter of the gasket and the bore of the flange.
It is widely used in moderate to critical services in various industries. They are most suitable for the gaskets subject to extreme temperature or pressure cycling, shock or vibration. These gaskets have the best resistance property when compare with other metal and asbestos type gaskets.
TYPES
Centering gasket (Style CG). Utilizes an external ring which accurately centers gasket on flange face. It provide an additional radial strength to prevent the gasket blow-out and acts as a compression stop. A general purpose gasket suitable for both flat face and raised face flanges.
Centering gasket with inner ring (Style CGI). This style is similar to style CG, but it additionally consists of an inner ring. The outer ring is used for centering and the internal ring used as an additional compression limiting stop. The internal ring also serves as a barrier to protect the gasket from heat and corrosion.
Reinforced spiral wound gasket (Style R). It is a basic configuration of spiral wound gasket. The Inner and outer diameters are reinforced with several plies of metal without filler to give greater stability and better compression and sealing characteristics.
Reinforced inner ring spiral wound gasket (Style RIR). This style of the gasket, the solid inner metal ring acts as a compression stop and fills the annular space between flange bore and the inside diameter of the gasket. It is designed to prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion at flange faces.
Three centering gaskets with black inner ring on a white background.
Style CG spiral wound gasket
A centering gasket with inner ring with yellow outer ring on a transparent background.
Style CGI spiral wound gasket
A reinforce spiral wound gasket on a white background.
Style R spiral wound gasket
Aspiral wound gasket with a solid metal ring on a gray background.
Style RIR spiral wound gasket
Spiral wound gaskets are produced in several style and combination of meterials to fit the most stringent application. Spiral wound gaskets are usually of circular shape, however we can produce them in other shapes such as: oval, rectangular, with round corners, etc. Our standard production program comprises a range of spiral wound gaskets with inner diameters of 10mm to 3000mm and non-standard dimensions and shapes, and larger diameters are available on request.
Spiral wound and connected its end and beginning by dot welded. Depend on its excellent compression resilience it is suitable for sealing spots 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 manufactory, power station, metallurgy, shipbuilding, medical and pharmaceutical nuclear power station and navigation, etc.
Other items in : gasket spiral wound gasket
» inner and outer ring of swg
Description:zt-600 spiral-wound gasket is formed of v-shaped metallic stripe and soft non-metallic filler by means of piled, spiral wound and connected its end and beginning by dot welded. Depend on its excellent compression resilience it is suitable for sealing spots 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 manufactory, power station, metallurgy, shipbuilding, medical and pharmaceutical nuclear power station and navigation, etc.
Application:
We can produce according to asme, bs, jis and en(din) standards or client request.
ProductsStyleFlangeFor example
Basic type swgZt-600Tongue and groove304/ptfe
Swg with inner ringZt-600 irMale and female304 304/fg
Swg with outer ringZt-600 crRaised face
Flat face304/asb cs
Swg with inner
& outer ringsZt-600 ic304 304/fg cs
Swg for heat exchangerZt-600 hHeat exchanger304/fg with 1 bar of dj
Special shape swgZt-600 sSpecialOval
Material:
StyleStructureHoop materialFiller materialInner & outer ring materialNormal thickness mm
GasketInner & outer ring
Zt-600Without rings304(l);316(l)
321;317l
31803
Monel,
Ti, ni
Inc
Hast.C/b
Zr702
Etc. Graphite, ptfe,
Asbestos
Non-asb
Mica,
EtcCs,
304(l), 316(l),
321;317l
31803
Ti, ni
Inc
Hast. Monel,
Zr7023.2
4.5
(0.175¡±)
6.42
3
(1/8¡±)
4
Zt-600 irWith inner ring
Zt-600 crWith outer ring
Zt-600 icWith inner & outer rings
Color cord as asme b16.20 on request.
Spiral wound gasket manufactured by wealson is widely uesd for sealing flange joints, manhole and handhole covers, tube covers, boilers, heat exchangers, pressure vessels, pumps, compressors and valves, in industries such as petrochemical, pharmaceutical, shipbuilding, and food processing, in power industries and nuclear power stations. They are ideal for steam, oil, liquids, gases, acids, alkalines, various organic mediums and solvents. It can be manufactured with any material as per customers requirement in accordance with the standard ASME, DIN, BS, api or to customer's specification.
With good compressio elasticity, it is applicable to the sealing parts under the intense alternating temperature and pressure, as the static sealing elements at the flange joints of pipelines, valves, pumps, heat exchangers, towers, manholes, handholes, etc. Ití»s widely used in petrochemical, machinery, electric power, metallurgy, shipbuilding, medicine, atomic energy, aerospace and other fields.
Products Style Flange For example
Basic type SWG ABT-601 Tongue and Groove 304/PTFE
SWG with inner ring ABT-601 IR Male and Female 304 304/FG
SWG with outer ring ABT-601 CR Raised face
Flat face 304/ASB CS
SWG with inner
& outer rings ABT-601 IC 304 304/FG CS
SWG for heat exchanger ABT-601 H Heat exchanger 304/FG with 1 bar of DJ
Special shape SWG ABT-601 S Special Oval
Specification:
Description:WFY SW3100 Spiral-Wound gasket is formed of V-shaped metallic stripe and soft non-metallic filler by means of piled, spiral wound and connected its end and beginning by dot welded. Depend on its excellent compression resilience it is suitable for sealing spots 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 manufactory, power station, metallurgy, shipbuilding, medical and pharmaceutical nuclear power station and navigation, etc.
Application:
We can produce according to ASME, BS, JIS and EN(DIN) standards or client request.
Got-400 spiral wound gasket is accumulated, hovered and wound, and spot welded beginning and end terminal by v-shaped or w-shaped stainless steel and non metal filler, which has good compression elasticity, and is suitable for the sealing parts with temperature and pressure altering violently. It is a static sealing parts used for such flange connecting joints as pipeline, valve, bump, heat exchanger, tower, manhole, and hand hole, etc. It is widely applied in departments as petrochemical, mechanical, electric power, metallurgy, boat building, medical, atomic energy, and aerospace
Got-400 spiral wound gasket is accumulated, hovered and wound, and spot welded beginning and end terminal by v-shaped or w-shaped stainless steel and non metal filler, which has good compression elasticity, and is suitable for the sealing parts with temperature and pressure altering violently. It is a static sealing parts used for such flange connecting joints as pipeline, valve, bump, heat exchanger, tower, manhole, and hand hole, etc. It is widely applied in departments as petrochemical, mechanical, electric power, metallurgy, boat building, medical, atomic energy, and aerospace, etc.
Ansi b 16.20mss sp-44api 605dinjisjpibs 1560jg/tgb/thgsh, etc.
Material: Spairal wound gasket is formed of V-shaped of W-shape stainless steel stripe and soft nonmetallic packing or the material of flexible graphite asbestos, nonasbestos, PTFE etc by means of piled.
The(inner/outer) ring: Carbo steel, SS304, SS316, Monel
Use temperature: -200-870ípC
Use pressure: 30Mpa
Application range: The static sealing element of pipe, valve, pump, thermal exchange, condensing motorcycle, auto vent-pipe, tower, plain hole and hole of flange, etc.
1. Structure
The wound style gasket consists of "v-shape"(or"w-shape")metal tape and nonmetal tape, which are overlapped each other and wound continuously.To fasten the metal tape, both its start point and end point are tack welded.
2.Performance and features
1. Wide range of applicable working condition, high temperature and high pressure resistance, applicable to super low temperature and vacuum condition.Chemical resistant gasket is available under various medium, through change of composition of gasket.
2.Strong stress compensation, stable and reliable sealing performance even under frequent pressure fluctuation condition.
3.Perfect sealing performance.
4.Normal requirement of flange surface finishing which contact with gasket.
5.Easy installation and low pre-tightening stress of gasket.
3.Kinds of gasket
1.A.Wound style gasket consists of four type:basic type, with inner ring, with outer ring, and with inner and outer rings. B.Heat exchanger wound style gasket:basic type and with inner and outer rings.
2. Normally matrial used:
A.Steel tape:08f, 0cr18ni9(304), 0cr18ni9ti, 1cr18ni9ti(321), 0cr17ni12, m02(316), 00cr17ni14m02(316l).
B.(cold roll)steel plate for inner and outer ring:outer ring:mild steel, 0cr13 and 0cr18ni9
Inner ring:same as steel tape, special order is a available through negotiation.
C.Nonmetal tape:flexible graphite, special made asbestos, teflon and non-asbestos paper.
4.Scope of application
1. Working temperature:-196íµ -700íµ(not higher than 600íµ in oxidic medium)
2.Working pressure:ín25mpa
3.Gasket coefficient:m=2.5-4
4.Min.Pre-tightening specific pressure:y-68mpa
5.Max.Machinable size:-2800mm
Spiral wound gasket is the best in the compression resilient in all the half-metal seal gasket, which is made by the metal hoop band and different kinds of packing material. We can make its structure density according to the demand of different locking force, and we use the inner and outer circle to control the maximum compact degree. So it can be well suit the rough flange face, especially suit the situation of unbalance load, loose of joint force, temperature and pressure change periodically , concussion and shock. It is used in flange joint of valve, pump, heat exchanger, tank, and handhole. It is widely used in the fields like petrochemical industry, machine, electric power, metallurgy, ship-building, medicine, atomic energe, space navigation. We made spiral wound gasket conform to different standards, for example, asmi, bs, jis, din and several other criterion used in china.
Spiral wound gasket is the ideal gasket in the semi-metallic category. A narrow strip of v-shap metal hoop is spirally wound under tension with a filler cushion between the lami nation of the metal and is spot-welded at both ends.
This unique construction of a spring-like metal and soft filler provides gasket excel-lent characteristics.
Resistance to high temperature and high pressures.
Great resilience which allows the gasket to adjust automatically to change in operating conditions, such as pressure and thermal shocks, vibrations etc.
Excellent sealability is maintained with comparatively small gasket area.
Good tolerance for flange surface finish irregularities.
Can be designed to any dimensions economically in circular or moderately noncircular shape.
Available in a variety of hoop metals and filler materials to satisfy specific operating conditions.
Spiral wound gasket is the best in the compression resilient in all the half-metal seal gasket, which is made by the metal hoop band and different kinds of packing material. We can make its structure density according to the demand of different locking force, and we use the inner and outer circle to control the maximum compact degree. So it can be well suit the rough flange face, especially suit the situation of unbalance load, loose of joint force, temperature and pressure change periodically , concussion and shock. It is used in flange joint of valve, pump, heat exchanger, tank, and handhole. It is widely used in the fields like petrochemical industry, machine, electric power, metallurgy, ship-building, medicine, atomic energe, space navigation. We made spiral wound gasket conform to different standards, for example, asmi, bs, jis, din and several other criterion used in china.
Spiral wound gasket is the best in the compression resilient in all the half-metal seal gasket, which is made by the metal hoop band and different kinds of packing material. We can make its structure density according to the demand of different locking force, and we use the inner and outer circle to control the maximum compact degree. So it can be well suit the rough flange face, especially suit the situation of unbalance load, loose of joint force, temperature and pressure change periodically , concussion and shock. It is used in flange joint of valve, pump, heat exchanger, tank, and handhole. It is widely used in the fields like petrochemical industry, machine, electric power, metallurgy, ship-building, medicine, atomic energe, space navigation. We made spiral wound gasket conform to different standards, for example, asmi, bs, jis, din and several other criterion used in china.
The Spiral Wound Gaskets can be used to seal fluid pressure up to 250 bar cryogrnices temperature as low as -2000C and up to elevated temperature of 10000C Products are widely used in the oil, gas, petrochemical process and engineering industries.
We can produce according to ANSI B16.5,
MSS SP-44, API605, DIN, JIS, JPI, BS1560
