1: What is the most essential difference between PTFE, EPDM and PFA materials?
PTFE (Polytetrafluoroethylene): Commonly known as the king of plastics, it is a white solid with excellent chemical in...
Globe valves are widely used and have many types. The main types are bellows globe valves, flange globe valves, internal thread globe valves, stainless steel globe valves, DC globe valves, needle g...
How check valve works
The check valve is used in the pipeline system, and its main function is to prevent the backflow of the medium, the reverse rotation of the pump and its driving motor, and the...
Valve foundation
1. The basic parameters of the valve are: nominal pressure PN and nominal diameter DN
2. Basic function of the valve: cut off the connected medium, adjust the flow rate, and change...
The initial stage of the valve industry (1949-1959)
01Organize to serve the recovery of the national economy
The period from 1949 to 1952 was the period of my country’s national economic reco...
When in use when the valve leakage to do? What is the main reason?
First, the closure of the leakage produced by falling off
Reason.
1, poor operation, so that the closure of the parts stuck or mo...
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