How Is The Wafer Valve Installed?

The installation of Wafer valve installation follows the core process of positioning → assembling → debugging. Key is to make sure the valve body is coaxial with the pipe and that the seal is intact. Depending on the type of valve (e.g. manual or pneumatic), pay attention to installing the gas source or operation component correctly.
Before installing, make sure the wafer valve's specifications (e.g., nominal diameter, rated pressure) match the piping and have tools such as sealing gaskets, bolts and wrenches ready.
1.Preparation before installation: Avoid basic Mistakess.
Check valve: Ensure the wafer valve body is not damaged, the inner core (rubber sleeve) is not aged or cracked, and the sealing gasket (usually made of rubber or PTFE) is intact and not deformed.
Clean pipe connections: Pipeline end grinding to remove burrs, solder slag and debris to prevent sealing scratches and leaks after installation.
Check installation direction: Some wafer valves have flow direction requirements (body indicated by arrows). Make sure the flow of media is consistent with the arrow. For valves without flow requirements, easy access to operating components, such as manual handles and pneumatic interface, should be ensured.
2.Core Installation Steps: Ensure Seal and Coaxial Degree
The wafer valve is clamped and fixed by two pipe flanges. The specific steps are as follows:
valve body positioning: Place the wafer valve between the two pipe flanges. Adjust the position of the valve to ensure that valve body flange hole is fully aligned with the pipe flange holes and that valve body coaxial with the pipe. (Excessive deviation results in seal failure or valve seizure.)
Install the sealing gasket: Install gasket on each side where the valve body is connected to the pipe flange, ensuring that the gasket covers the entire sealing surface and does not clog the flange holes (prevent bolts from inserting).
Installation and tightening of the Bolts: insert bolts into the pipe flange and valve body flange holes in turn. After inserting the nut, prefasten manually to ensure that all bolts are applied evenly. Then tighten them diagonally with a spanner (for example, first the top left corner, then the bottom right corner, and so on). This can prevent local excessive force, resulting in valve body deformation. Special Supplement: additional ladder Pneumatic Wafer Valves
For pneumatic wafer valves, in addition to the above steps, additional gas source connection steps are required to ensure the normal operation of the pneumatic components:
Connected gas source: Position pneumatic port on valve body (usually threaded ports, such as G1/4 or G1/2). Connect with qualified air pipe or fittings. Ensure the port is sealed with PTFE tape or sealant to prevent air leaks.
Test the Pneumatic Components: Before detonation, check that the pneumatic solenoid valve and cylinder are functioning properly. Once started, operate the valve to ensure smooth valve core movement without any viscosity or delay.
4.Post-Installation Commissioning: Verify Sealing and Functionality
Valves should be tested immediately after installation to eliminate potential problems:
Tightness Test: Pass media (or compressed air) through the pipe and maintain pressure at rated pressure for 5-10 minutes. Observe leakage of valve body, flange interface and pneumatic port (check bubbles with soapy water). Functional test: Repeat operation of valve (manual or pneumatic operation) to ensure that valve is fully open and closed without interference or abnormal noise and that media flow is effectively turned off when closed.
If you need to install a special purpose wafer valve (such as an industrial pipe or water treatment system), do you need me to develop a flowchart for the installation of wafer valves? This includes bolt-fastening torque references for valves of different diameters and common troubleshooting steps to help you install more efficiently.