Spring type safety valve bonnet failure can be used?
Need to be equipped with a bonnet, if not, cannot 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.
I think, the role of the bonnet is to make the 12- adjustment screw will not be adjusted at random, in order to ensure that the valve has been adjusted to the fixed pressure will not change. In fact, the valve itself is not pressure, and its damage will not affect the performance of the safety valve, so as long as the adjustment screw is not adjusted, the normal use of the safety valve, no problem. My advice is only from the simple level of use.
