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long shaft butterfly valves

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Signal butterfly valve

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Medium Pressure

Power:Manual

Details: This product is simple structure, good sealing performance, long life, easy maintenance, widely used in many channels...

Laizhou Yuankun Trading Co., Ltd.

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Aeration butterfly valve

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Medium Pressure

Power:Manual

Details: This product is simple structure, good sealing performance, long life, easy maintenance, widely used in many channels...

Laizhou Yuankun Trading Co., Ltd.

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China (Mainland)China (Mainland)

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Intelligent Explosion-Proof Electric Actuator Torque 1200 NM

Model / Specifications:OHQ Series

Type:Actuator

Brand Name:Autorun

Details: Intelligent Explosion-Proof Electric Actuator 1. Summary:Part-turn electric actuator is used for controlling 0°~360° rotation of the valves and ...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Explosion-Proof Electric Actuator, Corrosion Resistance

Model / Specifications:OHQ Series

Type:Actuator

Brand Name:Autorun

Details: Explosion-Proof Electric Actuator, Corrosion Resistance 1. Summary:Part-turn electric actuator is used for controlling 0°~360° rotation of the v...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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United StatesUnited States

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Wafer and Lug type butterfly valve without pin

Details: Wafer and Lug type butterfly valve without pin Characteristics of Product:1.Small in size and light in weight and maintaince. It can be mounted w...

Tianjin Kay Darth Wei Valve Co., Ltd.

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manual wafer wcb butterfly valves

Details: manual wafer wcb butterfly valves Standard: Design & ManufactureAWWA C504, API 609 TYPE B Flange ConnectionAWWA C207, ASME B16.5 ,ASME B 16.4...

Tianjin Kay Darth Wei Valve Co., Ltd.

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Viton seat butterfly valve

Details: Viton seat butterfly valveBrief Introduction:Butterfly valve is mainly consisted of body, stem, disc, seat and driver(lever, gearbox, pneumatic an...

Tianjin Kay Darth Wei Valve Co., Ltd.

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Lever Operated Lug type butterfly valve

Details: Lever Operated Lug type butterfly valve DesignStandard:1:Design standard conform to: MSS SP-67, API609, EN5932:Connection flange conform to: DIN ...

Tianjin Kay Darth Wei Valve Co., Ltd.

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semi lug butterfly valve

Details: semi lug butterfly valve Standard:1.Design standard conform to: MSS SP-67, API609, EN593.2.Connection flange conform to: DIN PN10/16/25, ANSI B16....

Tianjin Kay Darth Wei Valve Co., Ltd.

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butterfly valve made in china

Details: butterfly valve made in china Characteristic of product :1.Short structure size,small volume,light weight,convenience for operation.2.Adopting sem...

Tianjin Kay Darth Wei Valve Co., Ltd.

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Worm -gear Flange hard seal butterfly valve

Details: Worm -gear Flange hard seal butterfly valve Characteristic of product :1. Three eccentric seal structure, seat and disc almost no wear, with the S...

Tianjin Kay Darth Wei Valve Co., Ltd.

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fire fighting grooved end butterfly valve

Details: fire fighting grooved end butterfly valve Product information :Size: DN50 to DN600Body: DIDisc: DI SS Aluminum bronze etc.Stem: SS (One Piece wit...

Tianjin Kay Darth Wei Valve Co., Ltd.

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Flange Motor Operated Butterfly Valve

Details: Flange Motor Operated Butterfly Valve Specifications1)Material:SUS304,316L2)Standard:DIN,SMS,3A3)Size:DN25-150&1"-6"applied to stain...

Tianjin Kay Darth Wei Valve Co., Ltd.

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Cast iron wafer type threaded butterfly valve

Details: Cast iron wafer type threaded butterfly valve Prodcut parameter:Nominal Diameter: DN50-DN150Nominal Pressure PN (MPa):1.0, 1.6, 2.0, 2.5Testing ...

Tianjin Kay Darth Wei Valve Co., Ltd.

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fire fighting butterfly valve

Details: fire fighting butterfly valve Standard: Design & ManufactureFace to FaceFlange ConnectionTest & InspectionTop flangeAPI609MSS SP-67EN593B...

Tianjin Kay Darth Wei Valve Co., Ltd.

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Center Line Aluminum Butterfly Valve

Details: Center Line Aluminum Butterfly valve Technical Datas:1)Norminal Diameter:DN25-DN3002)General Design:JIS10k/CLASS 1503)Mounting Pad:ISO 52114.ace...

Tianjin Kay Darth Wei Valve Co., Ltd.

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electric control butterfly valve

Details: electric control butterfly valve Technical date:Flow media: Cold and hot water, water with max. 50% volume of glycolTemperature of medium: -10°...

Tianjin Kay Darth Wei Valve Co., Ltd.

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High performance bi-directional butterfly valve

Details: High performance bi-directional butterfly valve Specifications:1.size:100-20002.class:PN6--PN403.body:DI/WCB/SS304/SS316Al-bronze4.Disc/C95800/954...

Tianjin Kay Darth Wei Valve Co., Ltd.

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jis 10k flange butterfly valve

Details: jis 10k flange butterfly valveCharacteristics of product :1.Short structure size,small volume,light weight,convenience for operation.2.Adopting se...

Tianjin Kay Darth Wei Valve Co., Ltd.

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cast steel DIN Butterfly Valve

Details: cast steel DIN Butterfly ValveProduct paramter: Size:2"-80" or DN50-DN2000Pressure:150LB-3000LB or PN10-PN64 or 10K-40KMaterial:WCB,WCA,...

Tianjin Kay Darth Wei Valve Co., Ltd.

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PTFE seated wafer center line butterfly valve

Details: PTFE seated wafer center line butterfly valve Dtail product information : Size Range: 2”to 24” Pressure Rating: 800mbar to 16bar Flan...

Tianjin Kay Darth Wei Valve Co., Ltd.

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eccentric metal hard seal butterfly valve

Details: eccentric metal hard seal butterfly valve Standard:1.To DIN3352 or API6092.Face to face per DIN3202/ISO57523.flange ends dimension DIN2501/ANSI B...

Tianjin Kay Darth Wei Valve Co., Ltd.

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pneumatic flange hard sealing butterfly valve

Details: pneumatic flange hard sealing butterfly valveProduct parameter: Size:50-1200mmBody Material:cast iron,cast steel,alloy steel,stainless steel,chrom...

Tianjin Kay Darth Wei Valve Co., Ltd.

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hand wheel operated butterfly valve

Details: hand wheel operated butterfly valve Characteristic of product :1.Short structure size,small volume,light weight,convenience for operation.2.Adopti...

Tianjin Kay Darth Wei Valve Co., Ltd.

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hydraulic actuator butterfly valve dn100

Details: hydraulic actuator butterfly valve dn100Standard:Flange Drilling:Universal flange drilling able to comply with:DIN PN6/10/16,ANSI CLASS 125/150,JI...

Tianjin Kay Darth Wei Valve Co., Ltd.

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China (Mainland)China (Mainland)

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Flange type butterfly valve with extended spindle

Details: Flange type butterfly valve with extended spindle 1. Technical items:Design standard: EN593Face to face length acc.to:ISO5752 series14/DIN3202,F4F...

Tianjin Kay Darth Wei Valve Co., Ltd.

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China (Mainland)China (Mainland)

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two piece teflon butterfly valve

Details: two piece teflon butterfly valve Product parameter:1)Norminal Diameter:DN25-DN3002)General Design:JIS10k/CLASS 1503)Mounting Pad:ISO 52114)Face to...

Tianjin Kay Darth Wei Valve Co., Ltd.

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China (Mainland)China (Mainland)

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Ductile Iron hand wheel butterfly valve

Details: Ductile Iron hand wheel butterfly valve Standad:Face to face length acc.to ISO 5752 series 14(EN558-1 series 14/DIN3202-F4) Flange dimensions and ...

Tianjin Kay Darth Wei Valve Co., Ltd.

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China (Mainland)China (Mainland)

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cast iron teflon seat butterfly valve

Details: cast iron teflon seat butterfly valve Product parameterSizes: DN50 to 600General design: API 60Mounting pad: ISO 5211Face-to-face: API 609 and EN5...

Tianjin Kay Darth Wei Valve Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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High performence hand lever butterfly valve

Details: High performence hand lever butterfly valve Standard:1.Design standard conform to: MSS SP-67, API609, EN5932.Connection flange conform to: DIN PN1...

Tianjin Kay Darth Wei Valve Co., Ltd.

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China (Mainland)China (Mainland)

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Product Summary

Long shaft butterfly valve, is a kind of butterfly valve, which can be used with a long shaft.

Butterfly valves have historically been provided with one of two general types of connections between the actuator shaft and the valve disc. In one type of connection the disc includes a portion of increased thickness running longitudinally down the center of the disc and the actuator shaft is passed completely through the center of the disc and pivoted for rotation at the top and bottom of the valve. While such connections have been generally successful, they suffer from the disadvantage of being relatively expensive due to increased material and machining costs and also suffer from the disadvantage that a somewhat increased restriction to flow is presented when the valve is in the open position. A second general type of actuator shaft connection has been generally called a stub shaft connection. In stub shaft butterfly valves the disc includes portions of increased thickness (hubs) at the top and the bottom of the disc only. The actuator shaft is partially inserted into the hub at the top of the disc and a small shaft is inserted into the bottom hub of the disc.

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