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242019-10The function, structure characteristic and performance test of backflow preventer are introduced.
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162019-10The characteristics and applications of all kinds of universal valves and special valves are simply described
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282019-09Valve is the fluid system used most of a control component, can be used for switching or control flow direction and regulation, and from the simplest cut off function, the valve seal in the machine...
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212019-09The most common reason is that the operation manager does not maintain the valve in consideration of relatively expensive maintenance costs, or the lack of scientific valve management and ...
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102019-08Pneumatic valve is a kind of compressed air to drive the operation of the valve actuator, its opening and closing speed is relatively fast, often used for fast two cut off use, can also be used to regulate the flow of use...
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202019-07Check valve is to rely on medium oneself activity and open actively, close valve disc, used to avoid medium backflow valve, also known as backflow valve, one-way valve, countercurrent valve, and ...
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222019-06It is well known that the flow rate and velocity of the valve mainly depends on the size of the valve, but also with the valve structure type of the resistance to the medium...
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032019-06Steam trap plays the role of steam resistance and drainage in the steam heating system. The steam heating equipment can reach the highest working efficiency by selecting the right steam trap...
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112019-05Song Lin, a staff member of the power science research institute of the state grid corporation of qinghai province, adjusts equipment in the high-voltage experimental hall on May 9.
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192019-01First, the power supply voltage is low and the required torque is not obtained, which makes the motor stop turning.
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