Flat Gate Valves
DOCN Featured Products-Control Valve
Control valves are Zhejiang dongchen valve’s featured products
DOCN Flat Gate Valve
Flat gate valve is one of the important varieties of control valves in the production process. It has the advantages of full diameter, small flow resistance, good sealing and convenient switching.
DOCN Fixed Soft Seal Ball Valve
The metal sealed ball valves of Dongchen are suitable for high temperature, high pressure, and other services, which can achieve zero leakage of the valve seat and has the characteristics of high erosion resistance, high wear resistance, and long service
Flashing in Control Valve
Flashing occurs when a liquid flows through a control valve and evaporates to retain the vapor.
The Chairman Inspect the Workshop
Mr. Linhua Luo, President of Zhejiang Dongchen Valve Technology Co.,Ltd., went to the workshop to inspect the work.
Pressure Test of Ball Valve
In chemical production, if there is fluid passing through, valves will be used, so the importance of the valve in the chemical industry can not be overstated.
DN700 Triple Offset Butterfly Valve
Zhejiang Dongchen Valve Technology Co., Ltd. has developed a full welded triple offset butterfly valve.
What is the Dead Band of Valves
Deadband is a common phenomenon that refers to the range or width of a controller's output value that cannot cause a change in the measured process variable when the input signal changes direction.
Factors Affecting the Sealing Performance of Valves
Valve leakage is very common in life and production, which may cause waste in light and danger in heavy cases.
Dongchen Control Valve
DONGCHEN control valves are widely used in the petroleum, chemical industry, light industry, pharmacy, paper-making, metallurgy, power generation, and other industries, and play an important role in the process of automatic industrial instrument productio