The safety valve body has a valve handle – is it necessary to apply a lead seal?
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Help needed. Both the front and rear valves have been installed; there’s also a handle on the main body – is it necessary to add another one?
How about that dike lifting wrench? It is mainly used for periodic opening tests, and secondly for emergency manual discharge; therefore, a lead seal is not required.
Adding this seal is a \"patent\" of the safety supervision department; if they require it to be installed, you have no right to add it on your own if they don’t require it.
This doesn’t belong to the piping system; no addition is needed
This topic is quite interesting. After the safety valve is set, it must be sealed with a lead seal in accordance with the safety technical inspection regulations for safety valves. But what should be done during regular discharge tests?
Personally, I think it mainly depends on what purpose the lead seal is intended for; generally, it is used to check whether there has been any jumping, thereby facilitating identification after such an occurrence. However, after verification, they all have seals applied by the safety supervision department; those without such seals are considered unqualified, right?
After the safety valve is set, in accordance with the safety technical inspection regulations for safety valves, it must be sealed with a seal by the local special equipment inspection agency on the components of the safety valve to prevent unauthorized disassembly; regular discharge tests must be carried out, and the operation handles for emergency manual discharge cannot be sealed.
The valve itself has a handle, to which a lead seal is attached. If a seal is to be used, it’s better to choose one without a handle