Valves are fundamental control devices widely used in engineering systems to regulate, control, and isolate the flow of fluids (liquids, gases, or steam). Tianjin Water-Seal Valve Co., Ltd. provide...
(1) The valve does not operate.
The fault phenomenon and its causes are as follows:
1. No source of gas.① The air source is not open, ② due to the water content of the air source ice in winter, res...
Working Principle of Backflow Preventer
TWS backflow preventer is a mechanical device designed to prevent the reverse flow of contaminated water or other media into a potable water supply system or...
In the 30s, the butterfly valve was invented in United States, introduced to the Japan in the 50s, and was widely used in Japan in the 60s, and it was promoted in China after the 70s. At present, b...
PCVExpo 2017
16th International Exhibition for Pumps, Compressors, Valves, Actuators and Engines
Date: 10/24/2017 – 10/26/2017
Venue: Crocus Expo Exhibition Center, Moscow, Russia
Internatio...
Advantages and uses of electric butterfly valves
Electric butterfly valve is a very common device for pipeline flow regulation, which has a wide range of uses and involves many fields, such ...
Valve Painting Standard Related Videos From Youtube