High Performance DN300 1MPa Handwheel Nodular Cast Iron Flanged Butterfly Valve

Product Usage

Flanged butterfly valve, as a component used to realize on-off and flow control of pipeline system, has been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower, etc.
The valve is easy to operate, tight in sealing performance and long in service life; It can be used to quickly cut off or adjust the flow rate. It is suitable for occasions requiring reliable sealing and good adjustment characteristics.

The use of rubber seat seal makes it suitable for lower temperature and pressure, generally not more than 80℃ and not more than PN10, but also makes it have very excellent sealing performance. Therefore it is most suitable for normal temperature liquid.

Performance Specification

Main Parts And Materials

Valve body:Grey cast iron+NBR,Nodular cast iron+NBR
Butterfly plate:QT450-10
Valve spindle: 45
D-type sealing ring:NBR+EPDM

Selection Table

Characteristics

※ Compared with other valves of the same specification and pressure grade, the flanged butterfly valve has the advantages of short structure length, small size, light weight and simple structure.
※ Quick opening and closing, easy operation, and can be used for quick opening and closing of valves.
※ It has good flow regulating function and closing tightness, long service life, and can be used as regulating valve.
※ It is suitable for large-diameter valves and widely used in large water supply and drainage pipelines.

Storage and Maintenance Cautions

• When not in use, it should be placed in a dry and ventilated room, and both ends should be covered with dust covers to ensure that the inner cavity of the valve is clean.

• When stored outdoors for safekeeping, it should be supported, not in contact with the ground, and covered with plastic film for protection.

• When the valve stored for a long time is reused, check whether the packing fails, and add lubricating oil to each rotating part.

• During use, the valve should be checked regularly to ensure its normal use, including tightening the valve packing gland nut regularly to compensate the valve stem wear.

• The valve must be used and maintained within the specified service period, including replacement of gasket, packing, sealing ring, ball (as required) and other sealing pairs.

• Keeping the working environment of the valve clean can prolong the service life of the valve.

Service Description

1. Contact us, you can get OEM/ODM customization service.

2. You can get all kinds of valves with design and manufacturing standards here, such as ANSI, API, DIN, BS, JIS and GOST.

3. For products with existing molds, 10 tons are available for order. For less than 10 tons, we can combine production with other orders.

4. If you have special requirements and large orders, we can open new molds and produce.

5. Regular products can be shipped directly from stock. Samples can be provided before shipment.

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.