DBB Valves
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...valve also called DBB valve, generally say, it is make up by two ball valve and one needle valve or two ball valve and a globe valve. Double Block and Bleed valves (DBB Valves) have evolved to replace and add the process of bolting together individual valves to make the valves in one body. Double block & bleed valves (DBB Ball Valves......
Hebei Lufeng Piping Equipment Co., Ltd.
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150lb Twin Ball DBB Valve For Petrochemical Industry
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... points in the system and realize fast discharging and closing. The DBB ball valve saves the installation space to the utmost extent,simplifies installation procedures,reduces pressure in the pipes system,facilitates instrument cleaning and maintenance and...
COOSAI valve group
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Two Balls DBB Floating Type Ball Valve / Stainless Steel Ball Float Valve
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...one or two needle valves,the two ball valves can opend and closed the medium and two needle valves can discharge pressure of the valves,the ball valve is designed to replace the complex form of the connection of multiple valves in traditional pipes,so as...
Kelite Group Co., Ltd
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ISO5211 Mounting Pipeline Ball Valve DBB Flanged Simplified Installation
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...DBB Flanged Ball Valve Usage Pipeline Ball Valve Product Description The double block and bleed valves are also known by the short name “DBB valve”. Two ball valves could be integrated into a single body with a needle valve as a bleed between valves of this design is called a double block and bleed valve (DBB......
ZIGONG WEITE VALVE MFG CO., LTD
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DN50 DBB Forging Carbon Steel Ball Valve High Pressure Double Block Double Bleed Ball Valve DBB Double Ball Valve 2"
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...double block and bleed valve , DBB ball valve,double block & bleed valve INTRODUCTION Ephood's response to the demand for reduction in leakage paths has been the combination of primary and secondary valves into one compact unit. The combining of piping and...
ZHEJIANG VERVO VALVE CO.,LTD
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API 6D DBB Ball Valve Double Block & Bleed, Bubble Tight Seal, Flanged
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... Fire Safe to API 607 Antistatic Design Anti-blowout Stem Gear Operation or Actuator Available Applicable Standards of DBB Ball Valve: a) Design & Manufacture: API 6D, BS 5351, API 607 b...
Shanghai Kolink Valve Co., Ltd.
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Duplex Stainless Steel DBB Ball Valve , API 6D Trunnion Type Ball Valve
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...Valve , API 6D Trunnion Ball Valves , Duplex Stainless Steel PRODUCT INTRODUCTION 1. Product Description : Forged Double Block and Bleed (DBB) Valves Machined from a single piece of 'grain flow controlled' forging, our Forged Double Block and Bleed (DBB) Valves feature two inline ball pattern primary and secondary isolating valves and a heavy duty needle vent valve......
Zhejiang TongJiang Holdings Company
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Anti Static Trunnion Ball Valve DBB Compact Manifold Double Block And Bleed Valve
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...,reduce leakage points in the system, realize emission and shutdown quickly.The valve cavity is isolated by double seats. Even when there is pressure inside the pipeline, pressure can be discharged safely. This kind of operation can serve as a means to...
Foowell Industrial Wenzhou Co., Ltd.
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Double / Bleed Floating Ball Valve Stainless Steel DBB FLG AISI 316 PTFE
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... VALVE: W.N.R.F. Flanged Ball Valves, Full bore, lever operated, ANSI Class 150/300. Dimensions API 6D and, tests to API with following parameters: ......
Shanghai kangquan Valve Co. Ltd.
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Forged Stainless Steel DBB Ball Valve With Customized Design BV-DBB-02F
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Ball valve features a spherical disc to open and close the flow of the fluid. They are the industry standard for pipeline shut-off applications, as their design guarantees very tight and leak-free sealing even after years of operation. The two key types......
SHIJIAZHUANG DEYE PIPING INDUSTRY CO., LTD（Pipefittings Department)
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