WCB Wafer Check Valve

Size Range: 2~24"(DN50~DN600)

Pressure: PN10, PN16, Class125

Body Materials: A105,304,316

Seat Materials: EPDM

Disc Materials: Ductile iron /SS304/ SS316

Stem Materials: 2cr13



  • 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.

  • Wide edge seat with reliable sealing performance

    Convenient installation of valve, wide contact surface with flange boss on pipeline, reliable sealing performance.

  • 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.


The wafer flange clamped butterfly check valve is a energy-save product.It is manufactured based the foreign advanced technology and in accordance with relative international standards.This product is featured by excellent retaining per-formance,high safety and reliability and low flow resistance.It is suitable for systems in the industries of petrochemical food processing,medicine,textile,paper-making.Water,supply,drainage,metallurgy,energy,and light industry,etc,used as a check valve in one way.


 Valve main parts and material

No Parts Name Materials
Arm WCB LCB LCC WC6 WC9 CF8      
Bolt B7 L7M L7M B16 B16 B8 B8 B8 B8
Nut 2H 7M 7M 4 4 8 8 8 8
Design&Manufacture API 594 API6D JB/TB937
Face to face API594 DIN3202 JB/T8937
Pressre-Temperature ASME B16.34 DIN2401 GB/T9124
Pipe Flange JB/71-90 JB/T9112-9124                                  
PN Mpa SIZE(mm) L D D3 D2
1.6Mpa 40 60 96 46 41
50 60 109 56 51
65 67 129 73 65
80 73 144 88 80
100 73 164 108 102
125 86 194 132 127
150 98 220 160 152
200 127 275 210 203
250 146 332 266 254
300 181 387 310 305
350 184 447 355 350
400 191 498 405 400
450 203 558 455 450
500 219 618 505 500
600 222 732 605 600
700 305 802 700 695
800 305 912 800 796
900 368 1012 903 898
1000 432 1124 1055 1050
1200 524 1340 1200 1400


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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Bundor quickly dispatched a professional technical team to the customer's engineering site to investigate the problems.

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


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