Does every control valve need to be equipped with an air supply ball valve? ? ?
Thread Content
As the title says. I hope experts can explain it.
It’s supposed to be used to cut off the gas supply!
Generally, that’s the case, because when you service the valve, you need to turn off its air supply. If not every valve is equipped with a gas supply ball valve, maintenance will be rather troublesome.
It’s necessary; otherwise, when maintaining one valve, it is required to close the valves upstream on the entire gas supply line, and as a result no gas will reach all the valves, which would force a shutdown of the system. During design, one valve is supposed to have an air supply ball valve, but in practice, many such valves have to be added: lol :lol You’ll understand why once you become the construction design representative
If a valve fails, to cut off the gas supply, simply turn off this gas supply ball valve – it will not affect the other valves!
A gas source ball valve must be installed to facilitate maintenance.
Easy to install and maintain. During my construction work, the design usually calls for only one air source distributor; I have also requested from the client and the supervisor to install an air source ball valve next to the valve on site.
A gas supply ball valve is used to cut off the gas supply in case of a failure in the control valve or for rapid shutdown; each valve should be equipped with its own gas supply ball valve, and it cannot share one with another control valve.
That’s for sure; it’s to make maintenance easier in case there are problems with the control valve
A separate pneumatic ball valve must be installed; it is used to cut off the instrument air supply when dealing with faults in the actuator. When the instrument air supply is insufficient, if one supply line is left open, it will cause the pressure of the other supply lines to drop, which can create unnecessary problems for the process during fault resolution
Of course, once a control valve fails, it’s not possible to shut off the main air supply; therefore, each control valve must be equipped with its own air supply ball valve.
It is necessary to add one; if there are many pneumatic valves in one area, a gas source distribution unit can also be installed