The following items should be noted for the installation and maintenance of the shut-off valve:
1. The handwheel and handle operated shut-off valve can be installed at any position of the pipeline.
2. Handwheel, handle and micro-motion mechanism are not allowed to be used for lifting.
3. The flow direction of the medium should be consistent with the direction of the arrow shown in the valve body.
The main criteria for the globe valve:
1. GB/T 12233-2006 "Universal Valve Iron Globe Valve and Lifting Check Valve"
2, GB/T 12235-2007 "Universal valve flange connection steel shut-off valve and lift check valve"
3, JB/T53174-94 "cut-off valve product quality classification"
4. JB/T53165-92 "High Pressure Balance Globe Valve"
5, GB/T 587-2008 "Marine flanged valve for marine flanges"
6, GB/T 590-2008 "Marine flanged cast iron globe valve"
7, GB/T 8464-2008 "iron and copper threaded connection valve"
8, GB8465.2-87 "internal thread connection gate valve, globe valve, ball valve, check valve basic size iron shut-off valve"
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