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Super Purchasing for Centerline Butterfly Valves - Flanged Butterfly Valve – Dongsheng

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Our mission is to become an innovative supplier of high-tech digital and communication devices by providing value added design, world-class manufacturing, and service capabilities for Os&Y Gate Valve, Manual Butterfly Valve, Swing Check Valve Wafer, We are also the appointed OEM factory for several worlds' famous products brands. Welcome to contact us for further negotiation and cooperation.
Super Purchasing for Centerline Butterfly Valves - Flanged Butterfly Valve – Dongsheng Detail:

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The butterfly valve is a valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close or adjust the flow of the medium. The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in installation size, small in driving torque, simple and fast in operation, but also has good flow regulation and closing and sealing characteristics at the same time. It has been developed in the past ten years. The use of butterfly valves is very extensive. The variety and quantity of its use continues to expand, and is developing towards high temperature, high pressure, large diameter, high sealing performance, long life, excellent adjustment characteristics, and one valve with multiple functions. Its reliability and other performance indicators have reached a high level.

Commonly used butterfly valves include wafer type butterfly valves and flange type butterfly valves. Wafer butterfly valves are used to connect the valve between two pipe flanges with stud bolts. Flange butterfly valves are equipped with flanges on the valve. The flanges on both ends of the valve are connected to the pipe flanges with bolts.

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 and so on. In the well-known butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance.

Product parameter

Product parameter2Product parameter1

NO. Part Material
1 Body DI
2 Long bushing PTFE
3 Lining EPDM
4 Stem SS420
5 Disc CF8
6 O-Ring EPDM
7 Short bushing PTFE/Copper
8 Shaft circlip 45#
9 Hole circlip 45#
10 Semicircle key 45#
SIZE L L1 L2 L3 D D1 D2 φA φB FxF N-φE Z-φD k1 k2
DN50 108 66 131.5 13 165 125 52.2 90 70 9 4-φ10 4-19 100 105
DN65 112 86 140 13 185 145 63.9 90 70 9 4-φ10 4-19 100 105
DN80 114 94 154 13 200 160 78.5 90 70 9 4-φ10 8-19 100 105
DN100 127 110 173 17 220 180 104 90 70 11 4-φ10 8-19 150 125
DN125 140 128 189 20 250 210 123.3 90 70 14 4-φ10 8-19 150 125
DN150 140 140.5 199 20 285 240 155.4 90 70 14 4-φ10 8-23 150 125
DN200 152 170 236 20 340 295 202.3 125 102 17 4-φ12 8-23 270 205
DN250 165 205 277 25 395 350 250.3 125 102 22 4-φ12 12-23 270 205
DN300 178 238.5 317 30 445 400 301.3 150 125 22 4-φ14 12-23 270 190
DN350 190 265 360 30 505 460 333.3 150 125 27 4-φ14 16-23 270 190

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FLANGED BUTTERFLY VALVE
Contact: Bella  Email: Bella@lzds.cn  Whatsapp/phone: 0086-18561878609


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Super Purchasing for Centerline Butterfly Valves - Flanged Butterfly Valve – Dongsheng detail pictures

Super Purchasing for Centerline Butterfly Valves - Flanged Butterfly Valve – Dongsheng detail pictures

Super Purchasing for Centerline Butterfly Valves - Flanged Butterfly Valve – Dongsheng detail pictures


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Using a complete scientific top quality management program, great high-quality and fantastic religion, we win great track record and occupied this area for Super Purchasing for Centerline Butterfly Valves - Flanged Butterfly Valve – Dongsheng , The product will supply to all over the world, such as: Serbia, Thailand, Estonia, Our team knows well the market demands in different countries, and is capable of supplying suitable quality products and solutions at the best prices to different markets. Our company has already set up a experienced, creative and responsible team to develop clients with the multi-win principle.
  • Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,
    5 Stars By Victor from Durban - 2017.12.19 11:10
    Hope that the company could stick to the enterprise spirit of "Quality, Efficiency, Innovation and Integrity", it will be better and better in the future.
    5 Stars By Carol from Brunei - 2017.12.31 14:53
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