Product Name: High Pressure Knife Gate Valve
Size Range: DN80–DN900, 3-36 Inch
Temperature: Standard sleeve rated up to 75°C; up to 160°C with suitable elastomer selection
Pressure Range: Maximum working pressure up to 51 bar
Sleeve Material: Natural rubber (standard)
Available Options
Gate Materials:
Stainless Steel SS 316
Stainless Steel SS 316L
Duplex 2205
Super Duplex 2507
Product Features
High-Pressure Design: KGV-H withstands up to 51 bar, ideal for the most demanding applications
100% Bubble-Tight Shutoff: Ensures absolute zero downstream leakage
Dual-Seal Design: Enables bidirectional flow and isolation
Field-Replaceable Elastomer Sleeves
Self-Adjusting Secondary Seal
Unobstructed Flow: Eliminates turbulence and minimizes valve pressure drop
No Seat Cavities: Prevents accumulation of solids and ensures complete valve closure
No Metal Contact with Slurry
Packing-Free Design: Eliminates stem/gate packing leakage and maintenance
Adaptable Design: Equipped with a top-entry stem nut, easily retrofitted with pneumatic actuator or bevel gear
Application Area: Mining, Power, Pulp and Paper Industry, Aluminum Oxide, Chemical Industry, Cement

Source: https://www.magpievalves.com/high-pressure-knife-gate-valve-dn80-dn900-rubber-sleeved.html