1. Opening and closing function – cutting or communicating the flow of fluid in the pipe;
2, the adjustment function – adjust the flow rate and flow rate inside the pipe;
3, throttling effect – the fluid passes through the forged steel valve to produce a large pressure drop;
4, other functions – a. automatic opening and closing b. maintain a certain pressure c. steam blocking drainage.
Forged steel Y filter
The main parameters:
PN nominal pressure (the maximum pressure that allows fluid to pass);
DN nominal diameter ;
TN temperature range (temperature range allowed for fluid).
The inspection items before use include:
1. Whether there are defects such as blisters and cracks on the inner and outer surfaces of the valve;
2. Whether the valve seat and the valve body are firmly connected, whether the valve core and the valve seat are in agreement, and whether the sealing surface has defects;
3. Whether the connection between the valve stem and the valve core is flexible and reliable, whether the valve stem is bent or not, and whether the thread is damaged or corroded;
4. Whether the filler and gasket are aging and damaged;
5. Whether the forged steel valve is flexible or not.
The types of industrial forged steel valves can be divided into the following categories:
1. According to the purpose: cut off valves, regulating valves, diverter valves, check valves, safety valves;
2, according to the force: his action with forged steel valve, automatic action forged steel valve