Metal Body Color Size 500mm Nitric Acid Corrosive Medium Flanged Butterfly Valve

Metal Seal Triple Eccentric Stainless Steel Flanged Butterfly Valve

Product introduction

The valve is electric drive or worm drive, flange connection, implementation of JB/T 8527 standard, three eccentric butterfly valve is the butterfly plate rotation axis (valve stem axis) and the butterfly plate sealing surface of a deviation, the valve seat rotation axis and the valve body flow path axis formed an Angle. The valve is composed of valve body, butterfly plate, valve stem, butterfly plate seal ring, butterfly plate pressure ring, support, end cover and other parts

Electric or cochLEAR OPERATION to turn the STEM 90° and drive the disc 90° to open or close.

Because THE product is three eccentric structure, can produce a CAM effect in the opening and closing process, reduce the valve switching torque, reduce the wear between the seat and the butterfly plate, prolong the service life of the valve

Connection size

Technical parameters

Main part material

The valve features

1. The valve adopts three eccentric structure, with the tighter sealing function, the sealing performance is reliable.

2. Butterfly plate sealing ring adopts multi-layer plate combination of flexible graphite and stainless steel plate, medium corrosion resistance, erosion, maintenance free, long service life.

3. The sealing surface of the valve body is the body processing technology, resistant to medium corrosion and erosion, maintenance free, long service life.

4. High strength of butterfly plate, large flow area, small flow resistance.

5, the valve shaft is sealed with flexible graphite packing, the higher the medium pressure, the better the sealing. Wear of the packing can be compensated by continuing to compress the packing gland.

Precautions in storage, installation and use

1. This product should be stored in a dry warehouse and is strictly prohibited to be stored in the open air.

2. The medium flow direction should be consistent with the arrow direction on the valve body when the valve is installed.

3. The pressure test should be carried out before installation, and it can be installed after passing the test.

4. The pipe and valve cavity should be cleaned before installation.

5. The product shall not be subject to large external force after installation.

6. The operating conditions shall meet the technical requirements in the performance specifications.

7. Set the valve bracket if necessary.

8. Long-term storage, regular maintenance.

9. Generally, it is not allowed to open the electrical box cover, motor and other sealed parts outdoors on rainy days. When opening the electrical box cover, the power supply must be cut off first

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.