Electric Knife Gate Valve, Ductile Iron GGG40, PN10, PU Lined

Product Name: Slurry Knife Gate Valve, Bidirectional
Size: Customized
Pressure: PN10, Class 150 LB
Body Material: Ductile Iron GGG40
Lined Material: Polyurethane (PU)
End Connection: Wafer
Operation: Electric Actuator

Polyurethane's Wear Resistance and Properties: Polyurethane is highly recognized for its exceptional wear resistance. It is 8 times more wear-resistant than carbide, 7 times more than vulcanized rubber, and 3 times more than ultra-high molecular weight polyethylene (UHMWPE). This remarkable wear resistance is largely due to its elasticity and mechanical properties, which allow it to absorb the impact of solid particles and minimize wear and tear.

Polyurethane in Valve Design: The integration of polyurethane in valve design has led to significant advancements in valve life expectancy. By incorporating polyurethane into valve components, the lifespan of the valve is extended several times. The use of polyurethane in valve design offers enhanced durability and performance, particularly in applications exposed to abrasive materials.

Full PU Lined Slurry Knife Gate Valve: The Full PU Lined Slurry Knife Gate Valve is specifically designed for bi-directional tight on-off service in abrasive slurry applications. This valve utilizes full polyurethane lining, which is injected with the whole mold, providing comprehensive wear-resistant protection. All media flowing through the valve are fully enclosed by the polyurethane lining, ensuring 100% positive shutoff of abrasive slurries. This innovative design results in extended wear life, making it ideal for harsh conditions commonly found in mining and other abrasive slurry environments.
 

Technical Specification

» Normal Size Range: NPS 2-24 Inch (DN50-DN600)
» Normal Pressure Rating: PN6-PN16, Class 150 LB
» Connection Type: Wafer type
» Seat and Lining Material: Polyurethane (PU)
» Body Material: GGG40, ASTM A216 WCB, A351 CF8, CF8M, Special Alloy, etc.
» Pressure Test Standards: GB/T 13927, MSS SP-81
» Face-to-Face Dimensions: GB/T 12221, MSS SP-81
» Operation Methods: Handwheel, Lever, Bevel Gear, Chain Wheel, Pneumatic, Electric
» Service Temperature: -20°C to 80°C

Product Features

» Bi-directional Flow: Achieves zero leakage and shut-off, allowing valves to be installed in either direction.
» Integral Flange Seals: The polyurethane lining includes integral flange seals, eliminating the need for separate flange gaskets during installation.
» Replaceable Resilient Seats: Easily replaceable after removing the valve from the line.
» Full-Round Port: Ensures high flow capacity with minimal pressure drop.
» Wear-Resistant Valve Plate: Utilizes a wear-resistant stainless steel plate with various types of wear-resistant surface treatments.