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Turbine bypass valve & Desuperheater
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TBHP/TBLP/TBGT-Series
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(주)비에프에스

밸브 전문업체, 컨트롤밸브, 글러브 밸브, 볼 밸브, 버터플라이 밸브, 와이어 타입 밸브, ARC 밸브 등

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Turbine bypass valve & Desuperheater
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BFS Co., Ltd. Turbine bypass valve & Desuperheater   BFS Co., Ltd. Turbine bypass valve & Desuperheater  1

LP Bypass Valve-Dump tube(Option) 

 The LP-TB valve uses multi-hole cage technology to provide system noise attenuation through frequency shifting is a proven method of noise attenuation recognized by ISA Technical Standard SP 75.07 and by the IEC in Technical Standard 544-8-3.

 In frequency shifting the main flow stream is a separated into hundreds of tiny jets. The size of jets, which are primarily based on hole size, determine the resulting noise frequency-the smaller the size of the jet or multi-hole, the higher the frequency, which in turn produces a lower turns mitted dBA level. Multi-hole cage technology is ideally suited for intermediate pressure combined-cycle and low pressure drum boiler turbine bypass applications.

 Unlike traditional multi-hole cage on the market today, the multi-hole trim uses over one thousand multi-holes spaced a part in a special pattern designed to ensure fill jet separation, structural intergrity, and maximum noise attenuation.


BFS Co., Ltd. Turbine bypass valve & Desuperheater  2  BFS Co., Ltd. Turbine bypass valve & Desuperheater  3

HP Bypass Valve / TBHP series

Steam pressure and flow are controlled by the position of the valve plug within the control cage.

A signal from the pressure control loop to the valve actuator moves the valve plug within the control cage to increase or decrease the amount of free flow area. The control cage has an array of calibrated orifices to provide the control characteristic specified. As the plug is lifted from the seat, steam is permitted to pass in to the center of the control X[iks]-trim cage and out through the seat ring.

The outlet section of the valve has a combination cooler and silencer section. As the steam leaves the seat ring, it enters a diffuser designed to further decrease steam pressure energy in a controlled-velocity expansion. Flow is directed radially through the multiple-path & Multi-turns Disk-Stack (X[iks]-trim) cage or multiple orifice cage diffuser, exiting in to the enlarged outlet pipe section. This section has been sized to accommodate the large change in specific volume associated with the pressure drop of the steam and to keep steam velocities within limits to control noise generation.

The outlet section is outfitted with a water supply manifold. The manifold (Multiple manifolds are also possible) provides cooling water flow to a number of individual spray nozzle installed in the pipe wall of the outlet section. The result is a fine spray mist injected in to the high turbulence of the radial steam flow. The combination of large surface are a contact of the water and high turbulence in the steam make a for very efficient mixing and almost immediate vaporization.


BFS Co., Ltd. Turbine bypass valve & Desuperheater  4  BFS Co., Ltd. Turbine bypass valve & Desuperheater  5

Single-variable Nozzle Steam Desuperheater / SNSD series

The bFS steam desuperheater SNSD consists of a tube shaped body with flange for bolting of the desuperheater to the insertion stud that is welded to the steam pipe. The water inlet is also flanged, at 90deg. angle to the desuperheater, to equipment service access.

The cooling water enters the inner nozzle chamber in the desuperheater through the flange. In the inner nozzle chamber the water is induced to fast rotation around the control plug by the special arrangement of the admission holes. The angle of the nozzle seat is slightly different from the nozzle holder so that the water velocity will accelerate the whole time and reach its maximum as it leaves the nozzle.

In order to maintain a constant pressure inside the injection nozzle, the latter is preloaded by a spring calibrated in function of the water/steam differential pressure. 

Used for desuperheating of steam in small and medium sized pipes and is specially useful when the cooling water temperature is close to saturation.


BFS Co., Ltd. Turbine bypass valve & Desuperheater  6  BFS Co., Ltd. Turbine bypass valve & Desuperheater  7


BFS Co., Ltd. Turbine bypass valve & Desuperheater  8  BFS Co., Ltd. Turbine bypass valve & Desuperheater  9

Multiple-variable Nozzle Steam Desuperheater / MNSD series

The bFS steam desuperheater MNSD used in desuperheater applications where large spray water flows are required for cooling of the steam. 

The MNSD is part of the steam line with a number of water atomizing nozzles, Variable Nozzles. The nozzles are connected to a common spray water pipe connection. 

The spray water flow is controlled by a separate spray water control valve. A liner can be installed in the MNSD to improve the system turn down or protect the steam line. 

The MNSD can easily be adapted for any special requirement, such as incorporation of separate emergency cooling arrangement or split range operation.


BFS Co., Ltd. Turbine bypass valve & Desuperheater  10  BFS Co., Ltd. Turbine bypass valve & Desuperheater  11

Cooling water Control valve Combined Steam Desuperheater / CCSD series

The CCSD series is designed to reduce steam temperature by the introduction of a coolant directly into the hot fluid to achieve contact desuperheating. The coolant is atomized as it passes under pressure through a series of spray nozzles which assists it in evaporating into the vapor and results in an increased quantity of vapor at the specified final temperature.

(주)비에프에스
밸브 전문업체, 컨트롤밸브, 글러브 밸브, 볼 밸브, 버터플라이 밸브, 와이어 타입 밸브, ARC 밸브 등
BFS는 "BEST FLOW SOLUTION"을 제공합니다. 당사는 창업 초기부터 General Control valve 뿐만 아니라 Severe service 에 특화된 Control valve를 연구, 개발 및 제조하였습니다.우리의 기술 연구소는 우수한 설계역량과 많은 경험을 가진 전문가들로 이루어져 있으며, Customize Engineering 기반으로 혁신적이고 내구성이 우수한 제품을 생산하고 있습니다. 주사업 분야로는 Severe Service에 적용되는 Control valve로 Power plant, Oil & Gas(on-shore, offshore), Refinery, Petrochemical, Plup & Paper, Steel mill 등 다양한 설비에 공급하고 있습니다.  BFS는 Plant 설계 수명과 동일한 Control Valve 제조를 목표로 합니다. BFS Control valve는 개발단계부터 설계, 분석 입증시험, 실증 시험을 거쳐 제작 하며, 공급 후에 설치, 운전, 유지보수 등의 방법에 대한 Engineering Consulting Service를 시행하고 있습니다. 설비의 운전 중에도 예방정비차원의 진단서비스를 시행하고 있으며, Valve의 유지보수 작업이 쉽게 이루어질 수 있도록 기술 교육을 실시 합니다.  또한, 고객의 Needs에 빠르게 대응하고, 양질의 서비스를 제공하기 위하여 국내 및 세계 각국에 서비스센터를 설립하고 있습니다.  풍부한 경험과 지식을 겸비한 전문가가 귀사의 안전운전을 위해, 가장 가까운 곳에서 항상 대기하고 있을 것을 약속 드립니다. 
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