Bundor dn40 ss304 10 wafer or lug bronze gear box for butterfly valve

Product advantages:

1. The product side flanges comply with national, German, Russian, American, British and Japanese standards and other domestic and international standards for multiple pressures, easy connection and wide adaptability, which can reduce the type of purchase and stock.

2. The thickness of valve body meets the requirement of GB 26640, and the thickness and pressure strength are guaranteed.

3. The valve body is made of qt450-10 material and has 3 grades of spheroidization rate, with stronger mechanical properties, tensile strength of 450Mpa and extension rate of more than 10%. Compared with cast iron body, the tensile strength of the same thickness is twice that of cast iron body, and the applicable working pressure is higher.

4. The seat is made of imported rubber material with 50% adhesive content.The valve sealing is reliable, the opening and closing moment is stable, the valve seat has a long service life, and the opening and closing times can reach more than 10000.

5. The seats are all wide side seats, with wider sealing cover width, easier sealing at the end of the valve and more reliable sealing.Wide edge seat facilitates valve installation, wide contact surface with flange boss on pipe, reliable sealing performance.Installation accuracy requirements are lower than narrow side seats.Seat axial with concave table, with o-ring, can realize seat axial secondary seal.

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About us

Q:When the products will be shipped ?
A:Within 7-15 days after receiving the prepayment.

Q:Do you have OEM service ?
A:Yes . A variety of products size , quality and quantity can be cutomized according to your needs. 

Q:Could you offer a free sample ? 
A:Yes , samples can be proveded for free. 

Q:How can I pay for the products ? 
A: We accept a variety of payment methods. Such as T/T , L/C,D/P ,Western Union , Paypal ,Trade Assurance. 

Q: How do you deal with that if there are some quality problems in products?
A: We will be responsible for all the quality problems.

Q:Are you a facrory or trade company ?
A: We are a factory with 26 years experience in valve research and production .