Signal Wafer Butterfly Valve Gear Worm Power Fire Protection Valves

Wafer Butterfly Valve Gear Worm Power Fire Protection Valves

Usage :

The valve can be widely used in the clean water system of municipal pipe network, water heating system, construction and other industries. It can not only quickly connect or cut off the medium, but also quickly adjust the medium flow. The valve can be used on the pipeline or equipment of non corrosive medium to intercept, connect and regulate the flow.
When the handle of the valve is rotated by 90 °, the valve shaft also rotates. The valve shaft drives the butterfly plate to rotate to open or close. The dial and the handle meet to adjust the flow

Connect size

Material of main parts

Valve characteristics

1. The structural dimensions shall comply with GB/T12221, with small volume, light weight and easy operation.
2. The structure adopts a half shaft structure, which can be quickly opened when operating at 90 °; The disc plate has high strength, large flow area, small current resistance and energy saving.
3. The medium can flow through both sides of the flange butterfly valve in any direction to achieve the purpose of connection or cut off.

matters needing attention

1. The valve is installed on the pipeline for opening and closing, and can also be used for regulation and throttling.
2. The valve can be installed in any direction.
3. Clean the pipe and valve cavity before installation.
4. The valve shall be free from large external force after installation.
5. The valve is installed on the pipeline that has been closed for a long time, and it should be opened and closed regularly.
6. When the local minimum temperature is lower than 4 ℃, thermal insulation protection shall be carried out; As the end valve, the tracing pipe or jacket shall be used for heating to prevent the pipe wall temperature from being lower than 0 ℃.
7. It is strictly prohibited to install and use it on the pipeline that is subject to vibration or rapid change of medium temperature.
8. The operating conditions shall be consistent with the requirements in the performance specification

Yuanda Valve Group Co., Ltd., founded in 1994, is headquartered in Yincun, Longyao, Hebei, China, the hinterland of Bohai Economic Rim surrounding Beijing and Tianjin. With a registered capital of RMB 200 million, Yuanda currently has 8 subsidiaries, of which 6 are in China and 2 overseas. Among them, the core company, which covers an area of 540,000m2 and has more than 3500 employees, is the largest high,midium and low-pressure valve manufacturing base specializing in valve development, manufacturing, and sales in China.

Yuanda has obtained DNV·GL, ISO9001: 2015、ISO14001:2015、OHSAS18001:2007, API6D（6D-0759）, CE, KS, and EAC certifications. Its""trademark is evaluated as Famous Trademark of China and Famous Brand in Hebei Province, and the product series produced under"" is a trademark registered in Korea and products produced under this trademark enjoy a good reputation in both international and domestic markets. Yuanda has been named “Credit Management AA-Rating Enterprise” by the General Administration of Quality Supervision, Inspection and Quarantine and granted the title of “China Quality Trustworthy Enterprise” by China Entry and Exit Inspection and Quarantine Association. It is also a holder of Manufacture License of Special Equipment Level A and Casting Certificates Grades B, B1, and B2, and a member of China Valve Association council, a corporate member of China Foundry Association, and a provincial enterprise technology center in Hebei. Yuanda has been granted the power to carry out import and export operations on its own and is an approved supplier of PetroChina (CNPC) and Sinopec, Guodian, Huaneng, Huadian, Datang and China Power, and China Aluminum, CCESCC, Shougang, Wuhan Iron and Steel Company, and Hebei Iron and Steel Company.

Yuanda manufactures to standards including GB/JB(china), ANSI, API, AWWA, DIN, BS, JIS, EAC, NF and so on, and uses HT200, HT250, QT400, QT450, WCA, WCB, WCC, CF3, CF8, CF3M, CF8M, 1Cr5Mo, LCB, among others, to produce a great variety of valves including gate valves, globe valves, ball valves, butterfly valves, check valves, diaphragm valves, pressure-relief valves, plug valves, and traps, which are available in 12 main categories, 200 series and 4000 specs, totaling 120,000 tons a year. These products are widely used in all civil sectors covering petroleum, petrochemical, chemical, power generation, metallurgy, water system, pharmaceuticals, urban construction, and water supply and drainage.