What is WRAS butterfly valve?

control fluid flow in a pipe by using a disc attached to a central shaft. This disc of WRAS butterfly valve controls the amount of fluid passing through the valve by creating a variable opening. Majority of WRAS butterfly valves with plastic linings are zero offset. Those that are made of metal and some with rubber lining are either PTFE lined butterfly valve or WRAS butterfly valves.

What is WRAS butterfly valve?

What are the benefits that WRAS butterfly valve brings to us?

How about the development history of WRAS butterfly valve?

What is WRAS butterfly valve?

WRAS butterfly valve is a butterfly valve that has certification which refers to the Water Regulation Advisory Scheme. WRAS is a certification for drinking water safety in the UK. The Water Regulation Advisory Scheme (WRAS) is a certification scheme for the British water industry. The products approved by this scheme show that it meets the requirements of the 1999 Water Supply System (Water Fittings) Regulations and its revised edition.

The main goal of the plan is to avoid water: waste, misuse, abuse, improper consumption, incorrect measurement or pollutants. This certification is a necessary license for the UK market. Although it is not mandatory, it is already a practice. The company must check when providing water is to check whether there is a certification that meets the requirements of the relevant standards. WRAS's recognition is the most Persuasive proof.

The WRAS butterfly valve is simple in structure, small in size and light in weight, which consists of only a few parts. Moreover, WRAS butterfly valve can be opened and closed quickly by rotating 90° with simple operation. At the same time, the WRAS butterfly valve has good fluid control characteristics.

What are the benefits that WRAS butterfly valve brings to us?

WRAS butterfly valve is small in size and light in weight. In comparison with traditional ball valves and gate valves, butterfly valves save at least 70% of space and weight.

WRAS butterfly valve is easy to install and maintain. WRAS butterfly valve can be mounted wherever needed.

WRAS butterfly valve has simple and compact construction, which can on-off quickly at 90 degrees.

Compared to ball valve and gate valve, WRAS butterfly valve is great energy saver with lesser torque operations.

WRAS butterfly valve has stable anti-corrosion performance because of bubble-tight sealing resulting to no leakage under the pressure testing.

WRAS butterfly valve has wide selection of material, such as DI, carbon steel, stainless steel, super duplex, or alloy material. All are applicable to various mediums.

How about the development history of WRAS butterfly valve?

In the 1930s, the United States invented the butterfly valve. Butterfly valve was introduced to Japan in the 1950s, while it was only widely used in Japan in the 1960s. However, butterfly valve was promoted in China after the 1970s.

In the world, gate valves generally above DN300 mm have been replaced by butterfly valves. Compared with the gate valve, the WRAS butterfly valve has the advantages of short opening and closing time, small operation moment, small installation space and light weight. The disadvantage of the WRAS butterfly valve is that when used for throttling, cavitation will occur due to improper use, causing the rubber seat to peel off and damage.

Therefore, metal hard-sealed WRAS butterfly valves have been developed internationally, and the cavitation area has been reduced. In recent years, China has also developed metal hard-sealed WRAS butterfly valves. Japan has also developed a new generation of cavitation-resistant, low-vibration, and low-noise comb-tooth butterfly valve.

Learn more something about WRAS butterfly valve can know the detailed information about WRAS butterfly valve and the advantages of 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.