water gate valve

Big Size DN1000 Stainless Steel Slurry Knife Gate Valve with Hand Wheel Gear Design Features 1. Liftable sealing surface of wedge can scrape of f the adhered things on the sealing surface and automatically eliminate the impurities. 2. The Stainless steel wedge can prevent sealing leakage due to corrosion. 3. The integral stainless steel materials can prevent corrosion and damage. 4. The scientific back seal packing box design makes the bak seal safe, effective and durable. 5.