Introduction to daily use and maintenance of butterfly valve

Precautions for butterfly valve installation
Installation environment: butterfly valves can be used indoors and outdoors, but in corrosive media and places prone to rust, corresponding material combinations shall be used. Consult Zhongzhi valve for special working conditions.
Installation site: it must be installed in a place that can be operated safely and easy to maintain, inspect and repair.
Surrounding environment: temperature - 20 ℃ ~ + 70 ℃, humidity below 90% RH. Before installation, check whether the valve meets the operating conditions and requirements according to the nameplate on the valve. Note: the butterfly valve does not have the ability to resist high pressure difference. Do not let the butterfly valve open or flow continuously under high pressure difference.
Before installation, please remove dirt, scale and other sundries in the pipeline. During installation, please note that the medium flow direction shall be consistent with the flow direction arrow marked on the valve body.
Align the front and rear piping centers, make the flange interfaces parallel, and lock the screws evenly. Note that the pneumatic butterfly valve cannot have excessive piping stress on the cylinder control valve. According to the size and weight of the cylinder control valve, properly support and fix the pipe or the body.
Maintenance precautions
Daily inspection: check for leakage, abnormal noise, vibration, etc.
Regular inspection: regularly check whether the valve and other system components have leakage, corrosion, jamming and other phenomena, and maintain, clean, remove dust, remove residues, etc.
Disassembly inspection: the valve shall be disassembled and overhauled regularly. During disassembly and overhauling, the parts shall be flushed again, foreign matters, stains and rust spots shall be removed, damaged or seriously worn gaskets and fillers shall be replaced, and the sealing surface shall be corrected. After overhaul, the valve shall be subject to hydrostatic test again and can be reused only after passing the test.
If fluid leakage is found during the inspection of pneumatic butterfly valve, do not touch or approach the cylinder control valve by hand until the safety is confirmed.