Company News
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Talk about “running and leaking” of valves
One, the valve leakage, steam leakage prevention measures. 1. All valves must be subjected to hydraulic test of different grades after entering the factory. 2. It is necessary to disassemble and repair the valve must be ground. 3. During the overrepair, check whether the coiling is added an...Read more -
Butterfly check valve
Butterfly check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself, and is used to prevent the medium from flowing back. It is also called check valve, one-way valve, reverse flow valve, and back pressure valve. The check valve is a k...Read more -
Important protective measures when installing valves
When installing the valve, in order to prevent metal, sand and other foreign matter from entering the valve and damaging the sealing surface, a filter and flushing valve must be installed; in order to keep the compressed air clean, an oil-water separator or an air filter must be installed in fron...Read more -
Valves product: Production and inspection process
1. Raw materials of various specifications purchased by the company. 2. Conduct material test on raw materials with spectral analyzer, and print out material test report for backup. 3, With blanking machine for raw material cutting. 4. Inspectors check the cutting diameter and length of raw mater...Read more -
AQUATECH AMSTERDAM Water Treatment Exhibition
In 2019, Dongsheng Valve participated in the AQUATECH AMSTERDAM International Water Treatment Exhibition in the Netherlands, the booth number is 12.716A, which lasted for 3 days, from November 5, 2019 to November 8, 2019. As a veteran exhibitor of the exhibition, we are ...Read more -
Enterprises Management Upgrade Project
In August 2020, Laizhou City launched the enterprises management upgrade project, and selected 20 companies as models. The project takes 36 key contents of the enterprise operation system as the core, and carries out structural governance on the five major sections of th...Read more
