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fire protection ball valves

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NIBCO valve

Details: We can provide:NIBCO Grooved butterfly valve GD-4765NNIBCO Grooved butterfly valve GD-4765-4N/8NNIBCO Ductile Iron butterfly valve WD-3510NIBCO Du...

A&S Machinery Co.,Ltd.

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Solenoid Valves

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DETT International, Inc.

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Safety Relief Valves

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DETT International, Inc.

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Needle Valves

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Hydraulic Valves

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DETT International, Inc.

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Gate Valves

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DETT International, Inc.

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Deluge-Fire Protection Valves

Structure:Needle

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DETT International, Inc.

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Control Valves

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Details: Control Valves...Structure: Needle

DETT International, Inc.

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Butterfly Valves

Structure:Needle

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DETT International, Inc.

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Pneumatic Valves

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Plug Valves

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DETT International, Inc.

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Check Valves

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M-EC-AL Series Gearbox

Details: Aluminum Gearboxes for Valve Actuation....

MERITECH

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M-EC-AL Series foot valve

Details: M-EC-AL Series quarter-turn gear operators....

Meritechgroup

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hydraulic quick couplings

Model / Specifications:1/4"-1"

Price Range:US $1 - 100 / Piece

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Flexible or Rigid:Rigid

Standard or Nonstandard:Standard

Material:Steel

Details: hydraulic quick couplings material:steel color:yellow,white size:1/4"--1" high quality,competitive price...

Changzhou Xiangshang International Trade Co., Ltd.

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Threaded Ball Valves

Standard or Nonstandard:Standard

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Details: Threaded Ball Valves is designed and manufactured according well to API 6D....

Shanghai Kangquan Valve Co., Ltd.

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Explosion Proof Electric Flange Butterfly Valve with control Module

Model / Specifications:D943H

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Low Pressure

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Details: Explosion proof Electric Flange Butterfly Valve with Control ModuleProduct Detail:Model NO.: D97(4)3HConnection Form: Wafer/FlangeMaterial: WCB, S...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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DN32mm Explosion proof electric high pressure ball valve

Model / Specifications:Q911

Standard or Nonstandard:Standard

Structure:Ball

Pressure:Medium Pressure

Power:Solenoid

Details: Explosion electric high pressure ball valve Product Detail:Model NO.: Q911FDN: 15-400mmPN: 1.0, 1.6, 2.5, 4.0, 6.4MPaConnection Form: ThreadValve ...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Plastic PVC Electric Butterfly Valve

Model / Specifications:D971X

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Low Pressure

Power:Solenoid

Details: Electric Plastic PVC Butterfly ValveElectric Actuator Introduction:ODL Series electric actuator is used for controlling 0°-270° rotation of the ...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Electric Explosion-Proof Type Wcb Ball Valve

Model / Specifications:FBQ941F

Standard or Nonstandard:Standard

Structure:Ball

Pressure:Low Pressure

Power:Solenoid

Details: WCB Electric Explosion-proof Ball ValveWCB Ball Valve Detail:Model NO.: FBQ941FConnection Form: FlangeValve Body Material Available: WCBSeal Mater...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Dn500 Electric Explosion-Proof Ventilation Butterfly Valve

Model / Specifications:D941W, DN50-DN2000

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Low Pressure

Power:Solenoid

Details: Electric Ventilation Butterfly Valve Ventilation Butterfly Valve Detail:Model NO.: D941WConnection Form: FlangeValve Body Material Available: WCB,...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Ventilation Butterfly Valve with Ex Electric Actuator

Model / Specifications:D941W

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Low Pressure

Power:Solenoid

Details: Electric Ventilation Butterfly Valve Product Detail:Model NO.: D941WConnection Form: FlangeValve Body Material Available: WCB, Stainless SteelSeal...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Single/double Flange Ex Electric Ventilation Butterfly Valve

Model / Specifications:D941W

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Low Pressure

Power:Solenoid

Details: Electric Ventilation Butterfly Valve Product Detail:Model NO.: D941WConnection Form: FlangeValve Body Material Available: WCB, Stainless SteelSeal...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Explosion-Proof Electric Ventilation Butterfly Valve DN50, DN100, DN500

Model / Specifications:D941W

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Low Pressure

Power:Solenoid

Details: Electric Ventilation Butterfly Valve Product Detail:Model NO.: D941WConnection Form: FlangeValve Body Material Available: WCB, Stainless SteelSeal...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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DN250 Explosion proof electric flange ball valve

Model / Specifications:Q941F

Standard or Nonstandard:Standard

Structure:Ball

Pressure:Low Pressure

Power:Solenoid

Details: Electric Flange Ball Valve Product Detail:Model NO.: Q941FDN: 15-400mmPN: 1.0, 1.6, 2.5, 4.0, 6.4MPaConnection Form: FlangeValve Body Material Ava...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Explosion proof electric flange butterfly valve

Model / Specifications:D971X

Standard or Nonstandard:Standard

Structure:Butterfly

Pressure:Low Pressure

Power:Solenoid

Details: Electric Flange Ball Valve Product Detail:Model NO.: D971XConnection Form: FlangeValve Body Material Available: Aluminum, Casting Iron, WCB, Stain...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Explosion proof electric flange fixed ball valve

Model / Specifications:Q947F

Standard or Nonstandard:Standard

Structure:Ball

Pressure:Low Pressure

Power:Solenoid

Details: Explosion Proof Electric Flanged Fixed Ball ValveProduct Detail:Model NO.: Q947FDN: 15-400mmPN: 1.0, 1.6, 2.5, 4.0, 6.4MPaConnection Form: FlangeV...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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Supply High Quality Explosion-Proof Electric Actuator

Model / Specifications:OHQ series

Standard or Nonstandard:Standard

Structure:Ball

Pressure:Low Pressure

Power:Solenoid

Details: Basic Information:Model NO.:OHQ Certification:ISO, CEPower Supply:380V/220V/110V AC or 24V/110V DC Power Source:Electric PowerTemperature:Ordinary...

ZHEJIANG ODELO AUTOMATIC CONTROL VALVE CO.,LTD

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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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Product Summary

Fire protection ball valve, is a kind of ball valve, which can be used to protect the fire hazard.

An improved, soft-seated fire protection ball valve is disclosed. The ball valve includes a body having a central passageway, a ball member positioned in the passageway, and a pair of radially inwardly extending shoulders in the passageway disposed circumferentially thereof on opposite sides of the ball member.

The ball member includes a fluid flow opening therethrough and is mounted for selective rotation between valve open and closed positions to control fluid flow through the valve. An improved seat assembly is provided comprising a rigid reinforcing ring, an elastic seat ring supported by the reinforcing ring and configured for fluid sealing engagement to the ball member, and a deformable, heat resistant secondary seat ring interposed between the elastic seat ring and an associated one of the pair of shoulders. Also, a weir ring may be advantageously received in the seat ring. Upon fire damage to the elastic seat ring, the secondary seat ring engages the ball member to seal the valve. The weir ring inhibits extrusion of a substantial portion of the seat ring such that the seat assembly operates to maintain a fluid-tight seal upon partial destruction of the elastic seat ring.

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