الوصف

Standard and Specification
1. Design standard conform to：EN **3
2. Face to face conform to：EN ****1 *4 SERIES（DIN ***2,F4）
3. Connection flange conform to：EN ***2
4. Test conform to：EN******1
Product Size
1. Size：DN***-DN***0（Please contact us for other sizes）
2. Pressure Rating：PN6/PN*0/PN*6/PN*5/PN*0
Product Features
1. Special structure designï¼›optional material selectionï¼›ISO production process; strict anticorrosion measure; various operators, permanent buried service; no leakage; maintenance-free, easy to operate; safe and reliable. 
2. Compact structure，low torque，easy installation，successful tightness，long life span etc. It is an important part of water pipeline, water station, sewage plant pipe network. 
3. Disc sealing ring with low friction when valve opens and closes,which improves the life span of sealing ring and reduces the torque.
4. Shaft does not go through the sealing ring，the sealing ring can be replaced when valve is open.
5. Sealing ring is embeded between disc and clamping ring, no possibility of fallingout, keep sealing at any time. The sealing ring deformation is limited by the clamping ring; self-reinforcing sealing function when valve closed, the medium pressure from different direction will further enhance the sealing effect.
6. Nickel based stainless steel seat is welded on body with superior corrosion resistance and adequate strength, which is the fundamental guarantee for long life. Polished the seat surface; other parts are epoxy coating.