GB50160 – Issues related to the grounding of pipeline pumps in the context of static electricity grounding
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According to Article 9.3.3 of the \"Design Fire Protection Standards for Petrochemical Enterprises (2018 Edition)\", pipelines carrying combustible gases, liquefied hydrocarbons, combustible liquids, and combustible solids shall be equipped with static grounding facilities at the following locations: 3. Pipeline pumps and permanent filters, buffers, etc. at the pump inlet. In actual operations, the following issues exist: 1. Most of the pumps and compressors used in our company’s facilities are process flow pumps, and experts have suggested that the inlet filters for these pumps should also be grounded – is this appropriate? 2. Pipeline pumps should be considered a minor subset of industrial centrifugal pumps of the OH type; according to the literal meaning of the standards, process flow pumps and compressors do not require grounding.
According to the standards, all metal equipment must be grounded. In fact, the grounding scheme is a matter of cost consideration. If the filter is large enough, it can be grounded. In fact, all metal pipe components in the process system need to be bonded to ground.
An official response has finally been provided regarding whether pipeline pump filters require electrostatic grounding facilities. https://bbs.hcbbs.com/thread-3251324-1-1.html (Source: Haichuan Chemical Industry Forum)
This is a filter valve; for floor-mounted filtering equipment, it needs to be grounded. For a DN100 Y-type filter, simply make a bridge connection