Industry News
Floating Ball Valve and Fixed Ball Valve
2022-09-26
The ball valve can be divided into floating ball valve and fixed ball valve according to different working modes of the ball valve. What are the main differences between floating ball valve and fixed ball valve?
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Floating Ball Valve and Fixed Ball Valve
Dongchen Single-Seated Control Valve
2022-11-05
Dongchen DC1621 cage-guided single-seated control valve internals have an easy disassembly design. It is much easier to do on-site maintenance and can endure bigger pressure differentials if the guide cage is replaced with a porous structure.
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Dongchen Single-Seated Control Valve
What is the Dead Band of Valves
2022-07-28
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.
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What is the Dead Band of Valves
Exhibition Invitation | 7th Procurement Conference for China Petroleum and Chemical Industry
2023-05-10
DOCN invites you to attend the 7th Procurement Conference for China Petroleum and Chemical Industry.
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Exhibition Invitation | 7th Procurement Conference for China Petroleum and Chemical Industry
Working Principle of Globe Valves
2022-09-28
In brief, the principle of globe valve, made by Chinese Globe Valve Manufacturer DOCN, is to use the stem torque to give a downward pressure to the sealing surface.
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Working Principle of Globe Valves
DN700 Triple Offset Butterfly Valve
2022-07-01
Zhejiang Dongchen Valve Technology Co., Ltd. has developed a full welded triple offset butterfly valve.
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DN700  Triple Offset Butterfly Valve
Dongchen Self-Operated Pressure Control Valve - DOCN Valve
2022-11-07
DOCN Dongchen Self-operated pressure control valve is the executive product that depends on the medium's own energy to autonomously control the valve.
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Dongchen Self-Operated Pressure Control Valve - DOCN Valve
What is Blowdown Valve? - Introduction, Application
2022-09-01
Blowdown valve is widely used for continuous throttling control or intermittent discharge of boiler water under high differential pressure.
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What is Blowdown Valve? - Introduction, Application
Welcome the leadership of Xizi Clean Energy to Visit DOCN
2023-05-11
In the afternoon of May 8, 2023, leaders from Xizi Clean Energy Equipment Manufacturing Co., Ltd. visited Dongchen Intelligent Technology Co., Ltd. for inspection and exchange.
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Welcome the leadership of Xizi Clean Energy to Visit DOCN
Difference Between Internal and External Leakage of Valves
2022-09-30
Valve leakage is one of the most common of the many failures. Even valves labeled as “zero leakage”, or “bubble tight”, are not necessarily completely leakage-free. The leakages of valves generally are internal and external leakage.
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Difference Between Internal and External Leakage of Valves
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