In the utility systems, I see labels such as APP, WLS, BRS, WLR, WCS, and BRR on the pipes – what materials are these? .
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In the utility systems, what do the labels APP, WLS, WLR, WCS, BRS, and BRR on the pipes mean?
APP: It is made of polypropylene and is often used as a waterproof material; the markings seen on pipes refer to this waterproof material. WLS should be a single water supply cycle, WLT should be a single water return cycle. Is WCS a cyclic water supply cycle? In our process pipelines, BRS refers to the recycled material water pipeline or the dilute material pipeline, while in our company, BRR denotes the material water pipeline. The material codes for those that don’t work either differ; those starting with BR usually refer to salt water pipelines. I’m not entirely sure either; I’ll give the original poster some hints to see if that works. This is also related to the design habits of the design institute.
The one on the first floor is correct; it’s generally not marked in this way
You need to check the legend explanation for the PID chart
Generally, those who undertake such tasks are highly professional people. Generally, behind it, the pipe diameter, elevation, and other details are indicated
BRS: Frozen brine supply; BB: Frozen brine return. This post was last edited by Ge Xuxing on 2009-3-8 at 18:57
WCS is not circulating water supply, while CWS is circulating water supply.
Please refer to the post below, which contains many English abbreviations for pipe materials: http://bbs.hcbbs.com/thread-139171-1-1.html This post was last edited by zsfbukell on 2009-3-13 09:28.]
Does that person who has the VMGSIM software have it available to share, or can they provide a download link?
RPP refers to polypropylene; as for APP, I’m not sure. CWS or WCS is used to denote recycled water, and I’ve seen this term in the design specifications
:L: handshake
Different design institutes have different regulations regarding pipeline naming. Do these abbreviations appear in different parts of the pipeline numbers? In that case, it’s impossible to determine whether they refer to medium codes or materials. It’s best to write down all the names clearly.
Piping codes generally follow standard codes, but there are slight variations among different design institutes or organizations; this should be specified on the first page of the PID
These all have unified standards: process gases, process liquids, GL, PP, PGL: materials for gas-liquid two-phase flow processes; SG: syngas; PA: process air; AW: ammonia water; AI: liquid ammonia; CG: conversion gas; TG: exhaust gas; YW: process water; AG: gaseous ammonia; CO2: carbon dioxide; IA: instrument air; PA: compressed air in the plant; MS: medium-pressure steam; LS: low-pressure steam; SC: steam condensate; BD: boiler blowdown; RW: primary water, fresh water; BW: boiler feed water; CWS: circulating cooling water supply; DW: desalinated water; EW: potable water; CWR: circulating cooling water return; LO: lubricating oil; FO: fuel oil; SO: sealing oil, and so on
Check the legend of the PID diagram for instructions
Each unit is different. However, the piping specification document for the project will contain code descriptions for all fluids; you can check that. Basically, the last letter ‘s’ stands for supply, while ‘r’ stands for return. Here, BR likely refers to chilled brine, and WL is presumed to be cooling water; however, it is usually denoted as CW (cooling water)
Generally, you will be provided with a description of the utility systems, which details the codes for various media
There should be legends to explain it; many use the initial letters of English words, and some represent the conventions of different departments.