Please help with the installation location of the bursting disc.
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According to the specifications, our company installed a bursting disc on the gas pipeline. Since the main pipeline is relatively large, DN1000, a branch pipe with a length of 1m is led vertically upward from the main pipeline. An elbow (horizontal orientation) is installed at the end of the branch pipe. In order to prevent rain, please ask, should the bursting disc be installed on the vertical pipe before the elbow, or should it be installed horizontally at the end of the elbow? The installation position of the bursting disc is relatively high, and the risk of injury during blasting is not considered. It would be better if you can bring pictures of the installation when replying. Thank you.
I think it's on the vertical pipe. First of all, to prevent rain, as the specifications say, a rainproof cap can be added. The rupture disc must be located close to the equipment or pipe it protects to reduce pressure drop - in your case it would be the main gas pipe. This is the second reason.
According to what regulations, gas pipelines need to be equipped with bursting discs?
There are requirements in GB6222 Gas Safety Regulations for Industrial Enterprises, you can check it out
GB6222 Gas Safety Regulations for Industrial Enterprises, there are no requirements
Alas, what can I say to you! GB6222 No. 1 5.1.3.5 , the end of the air main pipe of the gas generator should be equipped with an explosion discharge device ； 5.1.3.10 , the electric tar trap should be equipped with an explosion discharge device ； 5.2.3.3 ； 5.2.3.5 , 5.3.2.4 Electric dust collector... ； 5.3.2.5 Bag dust collector... ； 5.4.3.2 ； 5.5.4.1 ； 5.6.2.5 ； 5.6.2.11 ； 7.1.1 ； 7.7 ；
In what you mentioned, you didn't say that "gas pipelines" need to be equipped with explosion vents.