QT450-10 ductile iron body. Level 3 spheroidal rate. 450Mpa tensile strength. Over 10% extension rate.
Size Range: DN50-DN200
Pressure: PN16
Body Materials: Ductile iron
Disc Materials: QT450+EPDM
Stem Materials: 2Cr13
QT450-10 ductile iron body. Level 3 spheroidal rate. 450Mpa tensile strength. Over 10% extension rate.
EPDM seat is made of imported Germany Bayer brand raw materials. 50% rubber content. No leakage after 10,000 times Opening and closing test.
One-piece shaft design，easy to install and replace.
There is a circlip groove which fixed on 4.the upper end of shaft,to prevent the valve shaft from blowing out during use and improve safety.
The valve shaft seal adopts the combination structure of oil-free bearing and packing to realize self-sealing.
Before leaving the factory, each valve is tested for pressure according to national standards to ensure that it is qualified.
| Name | Design and manufacture | Pressure Test | End Flange |
| Reference standard | GB 5135.6 | GB 5135.6 | GB 5135.11 |
| Name | 4-Body | 6-Disc | 7-Shaft |
| Material | QT450 | QT450+EPDM | 2Cr13 |
| DN | NPS (Inch) | L | φA | φB | φC |
| 50 | 2'' | 90 | 50 | 57 | 60.3 |
| 65 | 2 1/2'' | 97 | 61 | 69 | 73 |
| 80 | 3'' | 97 | 78 | 85 | 88.9 |
| 100 | 4'' | 116 | 101 | 110 | 114.3 |
| 125 | 5'' | 134 | 127 | 137 | 141.3 |
| 150 | 6'' | 134 | 150 | 164 | 168.3 |
| 200 | 8'' | 148 | 202 | 214.4 | 219.1 |
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Bundor quickly dispatched a professional technical team to the customer's engineering site to investigate the problems.
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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.
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.
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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