【Discussion welcome】Is the correct way to install the pressure gauge in the diagram on the left or the right?
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This post was last edited by Xiao Fu fu on 2024-6-21 at 13:49. Is the pressure gauge in the picture installed on the left or the right? Leave your comment!
I think the pressure gauge should be installed on the left side correctly. .
Just to add! Through online searches, it seems that there are no clear guidelines regarding the installation of pressure gauges. Ball valves can be installed at the upper part of the pipeline or at its base; the first image shows that since there is dust and sediment on the pipeline at the pressure measurement point, the valve can be installed at the base (this is to prevent impurities from entering the pipeline, making it easier to remove and clean the upper part of the pipeline later on?) ), and there are also those installed at the top (mostly at the upper part); it still seems necessary to decide on the installation method based on the actual conditions of the manufacturing process! Everyone can share their own opinions for discussion
The left side is more in line with the installation specifications. According to GB 50242-2002 Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering: 13.4.6 The installation of pressure gauges must comply with the following requirements: 1 Pressure gauges must be installed in locations where they can be easily observed and cleaned, protected from high temperatures, freezing, and vibration, and must have adequate lighting. 2 The pressure gauge must be equipped with a trap. When the trap is fabricated from steel pipe, its inner diameter should not be less than 10 mm; when fabricated from copper pipe, the inner diameter should not be less than 6 mm. 3 A three-way stopcock valve should be installed between the pressure gauge and the trap.
This post was last edited by xxkhc on 2024-6-21 at 22:25. The mention of a curved pipe indicates that it is used for measuring steam or high-temperature media. The left-side installation method is the appropriate one, as the valve is exposed to the temperature resulting from the condensation of the medium being measured, which helps to prevent leaks and damage to the valve. The valve on the right is exposed to the high temperature of the medium being tested, causing its packing to dry out and leak. The failure rate of the valve on the right side is definitely higher than that of the one on the left side. In environments with dust and sediment, it is necessary to install filtering, sedimentation, and isolation devices; in such cases, the valves should be installed at the root.
1. The pressure gauge casing is made of carbon steel
1. The pressure gauge casing is made of carbon steel, and it will definitely rust when used outdoors. 2. The root valve and connectors are copper-plated, and they will also rust when used outdoors
Why are all the ones I’ve seen on the right side?