How to install flanged butterfly valve?

The sealing principle and structural characteristics of flanged butterfly valves are the same as those of ordinary centerline butterfly valves. The sealing structure of the flanged butterfly valve adopts PTFE, synthetic rubber and phenolic resin to form a composite valve seat, which makes the valve seat more elastic and stronger. At the same time, the plate of flanged butterfly valve is fully covered with PTFE so that the butterfly plate has strong corrosion resistance.

 

What is wrong with flanged butterfly valve?

How to install flanged butterfly valve?

How to maintain flanged butterfly valve?

 

What is wrong with flanged butterfly valve?

Before installation, confirm whether the performance of flanged butterfly valve and the arrow of the flow direction of the medium are consistent with the working conditions. The inner cavity of the flanged butterfly valve is inserted and cleaned. No matter attached to the sealing ring and butterfly plate is allowed. It must not be closed before cleaning. Butterfly board, so as not to damage the sealing ring.

For the flanged butterfly valve with a large number of opening and closing times, open the worm gear box cover in about two months to check whether the butter is normal. Keep a proper amount of butter.

Check the tightness of each connection part, which not only guarantees the sealing nature of the packing, but also ensures the flexible rotation of the flanged butterfly valve stem.

The metal-sealed flanged butterfly valve is not suitable for installation at the end of the pipeline. If it must be installed at the end of the pipeline, an outlet flange must be installed to prevent backlog and over-position of the sealing ring.

 

How to install flanged butterfly valve?

Flanged butterfly valves have the advantage that the distance between the pipes at both ends is short. The "flanged" here refers to the valve connecting the pipe flanges at both ends with a gold hoop. The flanged type butterfly valve is a butterfly valve that is distinguished according to the connection method. The butterfly valve is connected by a flange type butterfly valve or a welded butterfly valve. Some small-diameter butterfly valves have flanges and some are not, which is determined by the design of each manufacturer. However, the large-diameter butterfly valve generally has a flanged.

When the flanged type butterfly valve and the pipe are installed, the flanges of the two sides are respectively installed with bolts. The sealing surfaces of the flanged butterfly valve body and the valve body are not squeezed by the bolts, which is beneficial to the sealing life.

 

How to maintain flanged butterfly valve?

At first, check whether the lubricator of flanged butterfly valve is working properly and whether the viscosity of the lubricating oil is appropriate. If necessary, you can choose to replace the lubricating oil, clean the sliding part of the flanged butterfly valve, and replace the spring.

Then we need to replace the sealing ring, valve stem and valve seat of flanged butterfly valve in time.

Before checking the working circuit of flanged butterfly valve for faults, we should first turn the manual knob of the flanged butterfly valve a few times to see whether the flanged butterfly valve can achieve normal reversing under the rated air pressure. If it can change normally, the problem is that the circuit is faulty. During the inspection, the voltage of the electromagnetic coil can be measured with instrument technology to see if flanged butterfly valve has reached the basic rated output voltage. If the voltage level is not too low, the power supply and the associated travel switch design circuit in the risk control module circuit should be further improved.

 

Learn more something about flanged butterfly valve can know the faults of flanged butterfly valve and how to install flanged butterfly valve. In the process of butterfly valve development, a number of very powerful companies have emerged, such as Tianjin Worlds Valve Co., Ltd. Our company knows how to innovate while developing, and will also go out in the process of introducing flanged butterfly valve. Whether from quality or price, or delivery time, we can help customers to open up a further and larger market, it is wise to choose us as your business partner.