I need to find out: what is the difference between Z61H-64 and Z61H-25, and what do these codes mean? ? ?
Thread Content
Solution: What is the difference between the drain valves Z61H-64 and Z61H-25? What do these codes mean? ? ?
The pressure ratings are different; one is PN6.4MPa and the other is PN2.5MPa. The valve type is the same.
Z – Gate valve; 6 – Actuator, pneumatic; 1 – Single gate; H – Material of the valve sealing surface: 13Cr stainless steel. The last two digits represent the pressure code, which is ten times the value in MPa
6 indicates that the connection method is welding; for the model Z661H, the 6 at the beginning represents the pneumatic actuator.
Just take a look at the standard JBT 308-2004 and it will all be clear
They are all welding gate valves; it’s just the pressure that differs. They are all the same type of valve