Pneumatic Wafer Butterfly Valve

Size Range: 2~32"(DN50~DN800)

Pressure: PN10, PN16, Class125

Body Materials: Cast Iron, Ductile Iron

Seat Materials: NBR, EPDM, VITON, PTFE

Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958

Stem Materials: SS416, SS304, SS316



  • Bundor patented valve products

    Valve side flange conform to a variety of domestic and foreign standards of multiple pressures, easy connection, wide adaptability.

  • Strong pressure bearing capacity of valve body wall

    Valve body wall thickness to meet the requirements of GB 26640, thick thickness, pressure strength is guaranteed.

  • Spherification rate 3, suitable for higher working pressure

    Valve body is qt450-10 material, mechanical properties are stronger, the same thickness of tensile strength is twice the iron body.

  • The seat has a long service life

    Valve seat is made of imported rubber, with 50% rubber content, long service life and more than 10000 opening and closing times.

  • Solid valve body, more stable

    Valve body is solid body, same caliber weight is heavier than other manufacturers.

  • Valve shaft support is strong, axial sealing is reliable

    Valve shaft and valve body with 4 oil-free bearings, 3 O sealing, valve shaft support more powerful, more reliable axial sealing.


Pneumatic butterfly valve:
Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211


Parts 1 2 3 4
Name Body Seat Disc Stem
Material DI EPDM SS304 SS410
SIZE A B L ANSI 150B DIN PN 10   DIN PN 16 JIS 10K ISO 5211 Top
mm in øK N-ød øK N-ød øK N-ød øK N-ød øD øD1 N-øG
40 1.5" 67 141 33 98.5 4-Φ16 110 4-Φ18 110 4-Φ18 105 4-Φ19 65 50 4-Φ8 F05
50 2" 67 141 43 120.6 4-Φ19 125 4-Φ18 125 4-Φ18 120 4-Φ19 65 50 4-Φ8 F05
65 2.5" 75 151 46 139.7 4-Φ19 145 4-Φ18 145 4-Φ18 140 4-Φ19 65 50 4-Φ8 F05
80 3" 95 160 46 152.4 4-Φ19 160 8-Φ18 160 8-Φ18 150 8-Φ19 65 50 4-Φ8 F05
100 4" 111 180 52 190.5 8-Φ19 180 8-Φ18 180 8-Φ18 175 8-Φ19 90 70 4-Φ10 F07
125 5" 129 193 56 215.9 8-Φ22.4 210 8-Φ18 210 8-Φ18 210 8-Φ23 90 70 4-Φ10 F07
150 6" 142 207 56 241.3 8-Φ22.4 240 8-Φ22 240 8-Φ22 240 8-Φ23 90 70 4-Φ10 F07
200 8" 170 240 60 298.4 8-Φ22.4 295 8-Φ22 295 12-Φ22 290 12-Φ23 125 102 4-Φ12 F10
250 10" 206 270 68 361.9 12-Φ25.4 350 12-Φ22 355 12-Φ26 355 12-Φ25 125 102 4-Φ12 F10
300 12" 238 316 78 431.8 12-Φ25.4 400 12-Φ22 410 12-Φ26 400 16-Φ25 125 102 4-Φ12 F10
350 14" 267 368 78 476.2 12-Φ28.4 460 16-Φ22 470 16-Φ26 445 16-Φ25 125 102 4-Φ12 F10
400 16" 298 400 86 539.7 16-Φ28.4 515 12-Φ26 525 16-Φ30 510 16-Φ27 175 140 4-Φ18 F14
450 18" 318 422 105 577.8 16-Φ31.8 565 20-Φ26 585 20-Φ30 565 20-Φ27 175 140 4-Φ18 F14
500 20" 349 479 130 635 20-Φ31.8 620 20-Φ26 650 20-Φ33 620 20-Φ27 175 140 4-Φ18 F14
600 24" 410 562 152 749.3 20-Φ35.1 725 20-Φ30 770 20-Φ36 730 24-Φ33 210 165 4-Φ22 F16


Check valves, globe valves, ball valves, filters, rubber joints, etc. are commonly used pipe accessories in fluid pipelines, with functions such as cut-off, regulation, diversion, prevention of backflow, pressure regulation, diversion, or pressure relief. It is commonly used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media.


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¿A quién debemos contactar si hay un problema de postventa?

Podría enviar el correo a o llamarnos directamente a Ms.Shirley. Los ámbitos comerciales se extienden a China central, China occidental, China oriental, sur de China y 66 países y áreas de todo el mundo. Estamos familiarizados con todo tipo de estrategia de desarrollo empresarial. Los ámbitos comerciales se extienden a China central, China occidental, China oriental, sur de China y 66 países y áreas de todo el mundo. A través de productos confiables y servicios perfectos, la marca de Bundor ha ganado muchos elogios de los clientes.

¿Qué certificados tiene la fábrica?

Bundor has 117 products patents and passes 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.

¿Qué puerto está más cerca de la fábrica?

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.

¿Cuál es la condición de pago?

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.

Fundada en la década de 1990, Bundor es una empresa experimentado de fabricación y comercio especializado en investigación y desarrollo, producción y venta a válvula de mariposa, válvula de compuerta, válvula de retención, válvula de globo y otras válvulas. 25 años insistemos al principio del proceso de fabricación de accesorio de válvula competente, el control de la fabricación de válvulas en todos los procesos de producción, de modo que "Bundor" se ha convertido en el proveedor líder mundial de válvulas para sistemas de agua.Nuestro Equipo