Ductile Iron Double Eccentric Butterfly Valve

Size Range: DN100-DN3000

Pressure: PN10/16

Body Materials: Ductile Iron/WCB

Seat Materials: NBR

Disc Materials: QT450-10

Stem Materials: 2Cr13

INTRODUTCTION

ADVANTAGES

  • Material reports can be provided

    The body material is QT450 or WCB, and the chemical composition and mechanical properties meet the requirements of national standards. Material reports can be provided.

  • High precision

    The valve body and inner parts are processed by CNC precision machine with high precision.

  • Two-way sealing

    Adopt body sealing structure, which is different from the conventional plate sealing structure in the market, and can realize two-way sealing.

  • Soft seals and hard seals available

    There are rubber soft seals and stainless steel hard seals available. The valve plate and other parts can also be selected according to the working conditions.

  • Seat is more wear-resistant

    The valve seat is welded with stainless steel, which is more wear-resistant and has a longer service life.

  • Low friction and low torque

    The valve shaft is supported by self-lubricating sleeve bearings, which can reduce the friction produced during valve shaft transmission and reduce torque.

  • Aksu epoxy resin spraying is used

    The world-famous brand Aksu epoxy resin spraying is used, and the spraying thickness is 250um.

  • Tested with national standards

    Each valve must be tested in accordance with national standards when leaving the factory, and unqualified products will never leave the factory.

FEATURES

Double eccentric butterfly valve is mainly used for drainage of water plants, power plants, steel smelting, chemical industry, water source engineering, environmental facility construction, etc., especially suitable for water pipelines, as regulating and intercepting equipment. Compared with the centerline butterfly valve, the double eccentric butterfly valve is more resistant to high pressure, has a longer life and good stability. Compared with other valves, the larger the caliber, the lighter the material, and the lower the cost.
The structural feature of the double eccentric butterfly valve is that the shaft center of the valve stem deviates from the center of the butterfly plate and the center of the body. The double eccentric effect enables the butterfly plate to be released from the valve seat immediately after the valve is opened, which greatly eliminates unnecessary excessive extrusion and scratching of the butterfly plate and the valve seat, reduces the opening resistance, reduces wear and improves The life of the valve seat is improved. The scraping is greatly reduced, and at the same time, the double eccentric butterfly valve can also use a metal seat, which improves the application of the butterfly valve in the high temperature field.

Applicable medium:Water, gas, oil, etc.
Suitable temperature:0℃~80℃
Application field:Water treatment, municipal construction, drainage, power plants, etc.

PARAMETERS

Name Design and manufacture Face to face Length End  Flange Pressure Test
Reference Standard GB/T 12238 GB/T 12221 GB/T 17241.6 GB/T 13927
 
Name 5-Body 7-Disc 6-Stem 10-Disc Sealing 11-Body Sealing
Material QT450-10 QT450-10 2Cr13 NBR 304
 
Size   PN10 PN16
DN NPT L D2 n-d D2 n-d
100 4" 127 180 8-φ19 180 8-φ19
125 5" 140 210 8-φ19 210 8-φ19
150 6'' 140 240 8-φ22 240 8-φ22
200 8'' 152 295 8-φ22 295 12-φ22
250 10'' 165 350 12-φ22 355 12-φ28
300 12'' 178 400 12-φ22 410 12-φ28
350 14'' 190 460 16-φ22 470 16-φ28
400 16'' 216 515 16-φ28 525 16-φ31
450 18'' 222 565 20-φ28 585 20-φ31
500 20'' 229 620 20-φ28 650 20-φ24
600 24'' 267 725 20-φ31 770 20-φ37
700 28'' 292 840 24-φ31 840 24-φ37
800 32'' 318 950 24-φ34 950 24-φ40
900 36'' 330 1050 28-φ34 1050 28-φ40
1000 40'' 410 1160 28-φ37 1170 28-φ43
1200 48'' 470 1380 32-φ40 1390 32-φ49
1400 56'' 530 1590 36-φ43 1590 36-φ49
1600 64'' 600 1820 40-φ49 1820 40-φ56
1800 72'' 670 2020 44-φ49 2020 44-φ56
2000 80'' 760 2230 48-φ49 2230 48-φ62
2200 88'' 800     /
2400 96'' 850
2600 104'' 900
2800 112'' 950
3000 120'' 1000

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Contact us now if you have any questions about our company and products.We will retain your information completely private.

FAQ

Who should we contact if there is after-sale problem?

You can send mail to info@bundorvalve.com or call us directly to Ms.Shirley. Business scopes spreads to middle China,West China,East China,South China and 76 countries &areas all over the world. We are familiar with all types of enterprises development strategy. Through reliable products and perfect services, the brand of Bundor has won extensive praise from customers.

What certificated does the factory have?

Bundor has 117 products patents and passes CE, CU-TR, API, WRAS, ISO9007, ISO18001, ISO14001, AAA credit grade certificate. Strictly in accordance with ISO, API, JIS, DIN and other standards for valve production, the factory has a perfect enterprise standardization system, has more than 80 sets of high-precision mechanical equipment and quality testing equipment. Can provide more than 10000 kinds of valve models, with a perfect computer system, with independent product research and development capabilities.

Which port is the nearest port from factory?

Bundor valve is located in jinan area, tianjin city, is a collection of scientific research, design, production, sales and after-sales service as one of the professional valve manufacturers, its main export port is tianjin port. Tianjin port is an important comprehensive port and foreign trade port in north China. After the order is confirmed, production can be arranged in 24 hours to ensure the delivery time. Bundor valve always adhere to science and technology and quality peers, dare to innovate, the pursuit of excellence.

What’s the payment terms?

T/T, L/C, D/P D/A, PayPal, Western Union, Cash, Escrow are all allowed. Bundor valve has a set of perfect international trade system. From international trade marketing promotion to international trade negotiations, the group's international trade market of Bundor has been developing steadily in developing countries and regions such as Asia, Africa and Latin America, and has successfully opened markets in developed countries and regions such as Europe and America.

Founded in 1990s, Bundor is an experienced manufacturing and trading combo specialized in the research & development, production and sales of Butterfly valve, gate valve, check valve, globe valve and other valves. 26 years adhering to the principle of manufacturing process of competent valve fittings,the control of valve manufacturing throughout all the production processes, correctly understand customer requirements, and commit to provide products that ensure customer satisfaction.Our team