Vacuum Exhaust Steam Globe Valve Apply For Power Station - China

Overview

Power plant boiler or industrial boiler is definitely installed with vacuum exhaust steam valve, which is used to exhaust steam and adjust boiler steam temperature within specified range in time of boiler startup.

During normal operation, when the pressure and temperature of boiler increase and boiler safety door is not required to be actuated, vacuum exhaust steam valve can be used to reduce pressure and temperature Thus it can be seen that the operating condition of vacuum exhaust steam valve is quite bad.

Mixture of gas and water is usually exhausted in time of startup while what is exhausted is high temperature and pressure over heat steam under full pressure state in the operating state.

lf all- purpose stop valve is adopted and used frequently under bad condition of large temperature and pressure difference, valve seat and valve core will produce crack or cavitation leakage, greatly shortening the service lifetime of valve.

According to the above instances, we has specially designed and developed DJ961HY type vacuum exhaust steam valve, which is a new king of valve and can endure the high temperature no more than 540 degree centigrade and pressure difference no more than 32MPa .

lt is applied to the occasions like over heat steam.

Characteristic

The structural characteristic of DJ961HY type vacuum exhaust steam valve is the adoption of medium reverse flow( high in low out) , with dual functions of disconnection and non- return.

The connection between valve cover and valve body is self- seal structure.

100% seal can be achieved through self pressure in time of closure.

Valve is designed into two large and small valve cores to solve the problem of difficult startup due to large pressure difference.

Valve seat and valve core are overlay welded with special alloy which has wearing capacity.

The adoption of tapered seal and linear seal surface can ensure non- occurrence of distortion and crack under the condition of large temperature difference.

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Operation principle

Type DJ961HY to the air exhaust valve is the two part of the electric device and the air exhaust valve body to.

The axial force generated by the electric head, drive the movement of the valve rod, the valve fully open or fully closed ( can not be adjusted to Use) , to complete the system operating requirements.

Electric actuator can be according to the needs of users on the system and designated manufacturers to configure.

Company Contact:

• Posted By: zhejiang hisun automation instrument co.,ltd

• Phone: 8657757789961

• Address: He yi Industrial Zone,Oubei Town, Wenzhou , China

• Email:

• Website: http://www.hisunvalve.com

• Business Description: ZheJiang Hisun automation instrument Co., Ltd. is a valve company which integrates Researching, manufacturing, designing, sales and after services as a specialized unit.
  
  This company is located beautifully in the scenery, scenery joy person's China "township of the pump valve" north the Wenzhou cup the pump valve garden area, the transportation is convenient, the industry is centralized.
  
  We produce "HISUN" brand valve , quality reliabled, variety is completed with nothing .
  
  We took the lead among our peers in China in obtaining TS manufacturing license, ISO9001 certification, CE
  
  certification, API certification .
  
  The company according to ISO9001 manufacture standard strict.
  
  We to rely on Science and technology, we are innovated exertion all the time, exploitation various "HISUN" brand valves and we can according standard , material or drive way to design and produce high quality valves.
  
  The products of HISUN is protected for ahead of technique and manage, In accordance with the marketing philosophy of "all for users", we will application new technique , new technics , new materials unceasingly to to open up and develop new products, we will provide better products and serve, there will be more efforts to construct modernization "HISUN".
  
  Established in 2008, As a control valve supplier specialized in designing and manufacturing high-end control valves and serving high-end customers.
  
  In addition, we have various advanced equipment needed for manufacturing control valves
  
  and nationally advanced control valves flow testing systems.
  
  Our products: linear motion control valves, self-operated control valves, ball valves, power station valves, butterfly valves.
  
  pneumatic actuators,
  
  Our goals:
  
  ---creating value for customers
  
  ---creating value for investors
  
  ---creating value for society
  
  ---creating value for personnel