Ductile Iron Wafer Check Valve

Size Range: DN50-DN300

Pressure: PN6/10/16、5/10K、CL150、Table D/E

Body Materials: Ductile Iron

Seat Materials: EPDM/NBR

Disc Materials: DI/SS304

Stem Materials: SS304/SS316



  • Sealing surface smooth

    The sealing surface is smooth and smooth

  • Sealing surface grinding treatment

    Butterfly plate, valve body sealing surface all through grinding, smoothness and flatness are effectively guaranteed.

  • Static pressure zero leakage

    Each valve is pressure tested to ensure that all products can achieve static pressure zero leakage.

  • Rubber does not come off easily

    The rubber inside the valve body adopts advanced vulcanization technology, which can effectively prevent the valve seat from falling off during service.


Applicable medium:Water and neutral liquid
Suitable temperature:- 20 ~ 120 ℃
Application field: Water supply and drainage, water treatment, water conservancy projects, etc.

Product advantages:
1.The sealing surface is smooth and smooth
2.Butterfly plate, valve body sealing surface all through grinding, smoothness and flatness are effectively guaranteed.
3.Static pressure zero leakage
Each valve is pressure tested to ensure that all products can achieve static pressure zero leakage.
4.The rubber inside the valve body is not easy to fall off
The rubber inside the valve body adopts advanced vulcanization technology to ensure the bonding strength between the rubber and the valve body is greater than 1.732mpa, which can effectively avoid the valve seat falling off in the process of use.


Parts 1 2.00 3.00 4 5
Name Body Stem Spring Disc Seat
Material DI SS304 SS304 SS304 EPDM
Size   L ΦA ΦB ΦC
DN NPS(inch)        
50 2" 43 101 60.5 57
65 2 1/2" 46 118 73.5 70
80 3" 64 132 89 86
100 4" 64 162 114.5 106.5
125 5" 70 193 141.5 120
150 6" 76 219 168 156.5
200 8" 89 272 219 210
250 10" 114 328 265 265
300 12" 114 378 310 300


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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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