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Home » Blogs » industry news » What are the common failures of WRAS butterfly valve?

What are the common failures of WRAS butterfly valve?

Publish Time: 2022-04-26     Origin: Site

Failures are the most common questions when it comes to issues on WRAS butterfly valves. We know how frustrating when you come across a problem, especially if WRAS butterfly valve is a newly purchased item and you’d expect the best from it. Don’t panic when this is your case, as some WRAS butterfly valve issues can be easily solved due to their simple geometry and design.


What are the common failures of WRAS butterfly valve?

How to maintain WRAS butterfly valve?

How to check WRAS butterfly valve?


What are the common failures of WRAS butterfly valve?

WRAS butterfly valves leaks.

WRAS butterfly valve seat is covered in dirt or the valve stem and disk is rusted.

WRAS butterfly valve seat is scored.

WRAS butterfly valve’s seal is damaged.

There is insufficient actuator movement in the WRAS butterfly valve.

WRAS butterfly valve cannot change direction or change direction slowly. This is generally caused by insufficient lubrication, stuck or damaged springs, and oil or impurities stuck in the sliding parts.

After long-term use of the WRAS butterfly valve, the valve core sealing ring is worn and the valve stem and seat are damaged.

The inlet and exhaust holes of the WRAS butterfly valve are blocked by sludge and other debris. The sealing function of WRAS butterfly valve is not tight. The movable iron core of WRAS butterfly valve is stuck.


How to maintain WRAS butterfly valve?

At first, check whether the lubricator of WRAS butterfly valveis 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 WRAS butterfly valve, and replace the spring.

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

Before checking the working circuit of WRAS butterfly valve for faults, we should first turn the manual knob of the WRAS butterfly valve a few times to see whether the WRAS 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 WRAS 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.


How to check WRAS butterfly valve?

Before you figure out how to maintain a WRAS butterfly valve, you must first analyze the following questions.

Does the set leakage tolerance of the WRAS butterfly valve been exceeded?

WRAS butterfly valves have allowable leakage tolerances, which can differ from application to application. While zero leakage may sound desirable, it is not always the case and many WRAS butterfly valves do leak at some point.

Does WRAS butterfly valve operate at the correct pressure and temperature as stated by the manufacturer?

Ensure that the WRAS butterfly valve you install has the correct size and pressure rating for the application. It should be noted that the pressure rating capability of the valve is determined by the sum of the interference of the disc and seat assembly and the interference of the rubber movement.

Are you using the right type of WRAS butterfly valve?

Make sure that you are using the right type for your application. Some WRAS butterfly valve are meant for silt and sand while others are only suitable for gases.

Is the orientation of the WRAS butterfly valve preferable for that valve?

See if the WRAS butterfly valve orientation is acceptable. You can look at this in the manufacturer’s manual.

Are there strainers available before the WRAS butterfly valve?

A strainer is usually built before the medium passes through the WRAS butterfly valve. This is to filter out large particles that can damage the WRAS butterfly valve components.


Learn more something about WRAS butterfly valve can know the failures of WRAS butterfly valve and how to maintain WRAS 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 WRAS 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.



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