Must the pre-pump filter be grounded?
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This post was last edited by cjgj008 on 2017-2-21 at 19:43. During a recent safety review of the reservoir area, experts suggested that all pre-pump filters should be equipped with static electricity grounding in accordance with the \"Code for Fire Protection Design of Petrochemical Enterprises\" 2008. My concern is that the filter itself is located very close to the pump, and the pump is grounded. Both the pump and the filter use metal gaskets for their flange connections, there are more than 8 bolts used, and steel plates are also used for bonding purposes. Is it still necessary to provide a separate grounding connection?
Since experts recommend that all pre-pump filters should be equipped with static electricity grounding in accordance with the 2008 Code for Fire Protection Design of Petrochemical Enterprises, then let’s do it – it’s not that difficult anyway.
Our company has also been faced with such demands.
It’s a matter of personal opinion – since the pump itself is grounded, the filter is very close to the pump and in good contact with the piping system, forming a grounding system, is it really necessary to ground it again? And it would be very troublesome to handle all 70 of our pumps as well.
It depends on whether your filter is managed as part of the equipment or as part of the piping system. If it’s managed as part of the equipment, then it must be done; in fact, the experts have already suggested how to do it, so there’s no difficulty at all. You should respect the experts’ opinions. You shouldn’t have acted this way this time; next time, if they ask you to make changes elsewhere, it will be troublesome for you
When liquid passes through a filter, it comes into friction with the filter, generating a large amount of static electricity; this leads to an accumulation of static charge, which can result in dangerous high voltages. According to experts, it is not a bad idea to implement static grounding.
During our company’s safety inspection, the experts expressed the same opinion: it is sufficient to connect the filter screws to the static grounding wire of the pump
We did a good job – all of our pump pre-filters are statically grounded
We’ve taken it over. Is it okay to connect it to the pump’s grounding electrode?
It’s good to do static grounding; I think it’s still necessary to make a bridge connection as well
Is there no requirement regarding the thickness of the ground wire? What gauge should the ground cable be?