Pump Control Valve - China

Basic information This water pump control valve is installed at the outlet of the water pump.

It can prevent the backflow of the medium, linked with the water pump, and can effectively prevent the water hammer phenomenon.

Features 1 - Slow closing effectively prevents water hammer.

2 - Stop pump stable and save energy

3 - Full port, small fluid resistance

4 - Completely Automatic Operation

Principle When the pump is started, the solenoid pilot valve is fully opened after electrification, and adjust the needle valve to the appropriate opening degree, upstream water enters the main valve control room through the pipe and flows out through the solenoid pilot valve, at this point, the pressure of the main valve control room keeps the main valve open and at the appropriate opening degree to keep the normal water supply downstream.

When the water pump stops working, the solenoid pilot valve closed after power is cut off, the main valve control room stops to drain, the pressure of the control room rise, the main valve begins to close.

When close to 90% position, the upper routing switch of the main valve outputs the stop signal and the pump stops running.

At this point, the downstream backwater enters the main valve control room through the pilot pipe, the pressure of the control room increases to close the main valve.

Installation and Commissioning The pump control valve shall be installed at the outlet of the pump and shall be installed on the pipeline of the one-way flow of the medium.

It does not need other devices and energy except using solenoid pilot valve control.

For specific use, please consult ZhengFeng Valve Group.

Product scope, Standards & Materials Size Range: 2"~24"

Pressure Rating: 10bar ~ 25bar

Face to Face Dimensions: AMSE B16.10, EN558-1

Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2

Coating: Fusion Bonded Epoxy Coating Inspection and Test: ISO 5208 / EN 12226-2 Part Material Standard Body Ductile Iron EN 1563/DIN 1693 Bonnet Ductile Iron EN 1563/DIN 1693 Trim Stainless Steel 431 EN10088-1/ASTM A959 Seat Stainless Steel 431 EN10088-1/ASTM A959 Diaphragm EPDM / NBR ISO 4633 Pilot Valve CuZn39Pb1 / C37000 EN12167/ASTM B135 For the materials options not listed, consult factory.

ZhengFeng manufactures valves in more than 50 different alloys.

Company Contact:

• Posted By: ZhengFeng Valve Group

• Phone: 13816296699

• Address: Caoan Road 3999#, JiaDing District, Shanghai, China , jiading , shanghai , China

• Email:

• Website: https://www.zhengfengvalve.com

• Business Description: ZhengFeng Valve Group, founded in 1991 with focus on manufacturing Water valves, including control valves, balancing valves,gate valves, butterfly valves, check valves, and air valves.
  
  Valve sizing 1/2” to 88”, rating BS 10bar through BS 25bar, served covering buildings & construction，waterworks ，fire protection and many other fields.
  
  Zhengfeng has excellent product quality and sound managing system.
  
  We have certificates of ISO9001, ISO14001,ISO18001,WRAS， FM，API 6D, CE, TS, and Sanitary Certificate for Drinking Water Equipment.
  
  Meanwhile, our products are insured by PICC.
  
  Besides, we are member of China Valve Industry Association, China Fire-proof Association and Water Supply and Sewage Engineering Division of China Construction Metal Structure Association, and having long-term cooperation with China National Chemical Equipment Corporation (CNCE) and China Petroleum & Chemical Engineering Survey and Design Association（CPCESDA）.
  
  After development of 26 years, today the company supplies products to more than 30 countries and regions in the world and becomes one of the leading suppliers of water valves in China.