Application field：fire pipeline, water treatment
1. QT450-10 ductile iron body. Level 3 spheroidal rate. 450Mpa tensile strength. Over 10% extension rate.
2. EPDM seat is made of imported Germany Bayer brand raw materials. 50% rubber content. No leakage after 10,000 times Opening and closing test.
3、One-piece shaft design，easy to install and replace.
4.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;
5. The valve shaft seal adopts the combination structure of oil-free bearing and packing to realize self-sealing;
6. Before leaving the factory, each valve is tested for pressure according to national standards to ensure that it is qualified.