How to Install Soft Seal Wafer Butterfly Valve？
A wafer butterfly valve is one of the most common types of valves in industrial pipelines. The wafer butterfly valve itself has a relatively small structure. You only need to put the wafer butterfly valve in the middle of the flanges at both ends of the pipeline and use stud bolts to pass through the pipeline flange and the opposite The clip-type butterfly valve is locked to control the fluid medium in the pipeline. Wafer butterfly valves are especially suitable for places with narrow spaces or short distances between pipes. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small. Small, so it has better flow control characteristics.
Instructions before installation of a wafer butterfly valve
1. Before installation and operation, use air spray to remove foreign objects on the piping, and clean the inner surface of the piping with clean water.
2. Carefully check whether the use of the valve is consistent with its performance specification; (temperature, pressure)
3. Check whether there is debris in the valve channel and sealing surface, and remove it in time;
4. After opening the box, the valve should be installed in time, and please do not loosen any fastening screws or nuts on the valve at will;
5. Wafer butterfly valves must use special butterfly valve flanges.
6. The electric butterfly valve can be installed on the pipeline at any angle. For the convenience of maintenance, it is recommended not to install it upside down.
7. When installing the butterfly valve flange, it must be ensured that the flange surface and the sealing rubber are centered, the screws are tightened evenly, and the sealing surface must fit completely; The butterfly plate causes leakage at the valve stem.
Installation steps of the wafer butterfly valve
The correct installation of the wafer butterfly valve is related to the sealing degree of the butterfly valve and whether it will leak, including the safety of the working conditions. The user should understand the installation process.
1. As shown, place the valve between the two pre-installed flanges, and pay attention to the neat alignment of the bolt holes.
2. Gently insert four pairs of bolts and nuts into the flange holes, and tighten the nuts slightly to correct the flatness of the flange surface;
3. Fix the flange on the pipeline by spot welding;
4. Remove the valve;
5. Completely weld the flange on the pipeline;
6. Install the valve after the welding joint is cooled. Ensure that the valve has enough space in the flange to prevent the valve from being damaged, and ensure that the valve plate has a certain opening;
7. Correct the valve position and tighten the four pairs of bolts (be careful not to overtighten)
8. Open the valve to ensure that the valve plate can open and close freely, and then slightly open the valve plate;
9. Tighten all the nuts with cross balance;
10. Confirm again that the valve can open and close freely. Note: Make sure that the valve plate does not touch the pipe.
Summary of Installation Instructions and Steps for Wafer Type Soft Seal Butterfly Valve
The installation of clip-on butterfly valve must first be placed flat before installation. Remember not to bump it at will. After it is drawn to the length of installation during installation, it is not allowed in the design of the on-site pipeline without special permission. Disassemble the wafer butterfly valve at will, this is what we need to know before installation. At the same time, everyone should know that the wafer butterfly valve can be installed in any position, but after the wafer butterfly valve is installed, it is necessary to lay the butterfly valve along the line and make a bracket for the wafer butterfly valve. It is strictly forbidden to remove the bracket at this time.
