Q:In the HG/T20570.2 "safety valve settings and selection" mentioned in these kinds of safety valve, but did not give a clear definition, meaning clear, want to find a more formal definition. Which standard is better if it is inside?.

The selection of safety valve is generally based on displacement, set pressure and other related parameters, calculation of throat diameter level and other parameters, API standard formula, or directly to the safety valve manufacturer selection software, it is better.

Q:Spring type safety valve bonnet failure can be used?

If from the inspection of supervision institutions, but it is recommended as soon as possible with a new valve cap, and indeed the valve cap damaged or hidden.

Q:Causes and solutions of valve cap leakage in Joyoung rice cooker

If there is still any doubt, please contact the local Joyoung after-sales service department, once again thank you for your support for Joyoung, wish you happy every day! Thank you

Q:The pressure cooker cap is falling. Is that ok?

if the state is deflated, never open cover, or it will be dangerous.

Q:GREE cool, Wang II new machine outside the machine, the use of water on the bonnet is normal phenomenon?

I also bought a cool yesterday, the king has not installed, how can your air-conditioning refrigeration effect?

Q:GREE air conditioner copper valve cap can not be installed, okay?

Air conditioning copper valve cap can not be installed, it will not affect the work, but the role of air conditioning copper valve cap is to prevent water, gas, mud, debris and other pollution, and let you next to use when it may be twisted, can not open. I suggest you buy one and put it on!

Q:Air conditioner, high and low pressure valve, bonnet with copper? Never seem to have seen, the valve cap did not tighten, it will leakAir conditioner, high and low pressure valve, bonnet with copper? Never seem to have seen, the valve cap is not tightened, will it leak?

No, tighten it! Some machines use too long, they will leak refrigerant!

Q:Will the automatic bleed valve cap bleed automatically when it is not tightened?

When the pressure reaches a certain value, it will open the valve cap when the exhaust pressure decreases, inch, bonnet and fall!

Q:Which are the handwheel and bonnet?

Small (DN = 25, and the valve pressure is not too large) valve bonnet is recommended, convenient switch.

Q:Heating valve cap how to take?

Hello Open the label on the top of the valve cap, you can see the screw inside, loosen the screw can be taken down.