Pneumatic Slurry Knife Gate Valve, DI GGG40, 6 Inch, CL150

The Ductile Iron Slurry Knife Gate Valve, featuring a GGG40 body, is designed for reliable operation in slurry and challenging media applications. With a 6-inch (DN150) size, Class 150 LB (PN16) pressure rating, and flanged ends, this valve offers strong, secure connections. Equipped with a pneumatic actuator for precise control, it ensures efficient operation in automated systems.

Product Name: Pneumatic Slurry Knife Gate Valve
Body Material: Ductile Iron GGG40
Size: 6 Inch, DN150
Pressure: Class 150 LB, PN16
End Connection: Flanged
Operation: Pneumatic Actuator

The integral slurry valve is a full-bore type, with the valve body’s flow channel entirely wrapped in wear-resistant polyurethane. This design prevents the flushing medium from coming into contact with the metal valve body, significantly extending its anti-wear lifespan. The full-diameter flow channel matches the pipeline's inner diameter, preventing eddy currents and reducing erosion. When fully opened, the valve plate lifts into the valve chamber without direct contact with the medium, further enhancing the service life of the disc.

Technical Specifications

» Nominal Diameter: NPS 2–24 Inch DN50–DN600)
» Design Pressure: PN10, PN16, Class 150 LB
» Working Pressure: 10.3 bar (150 PSI)
» Operating Pressure: 6.2 bar (90 PSI)
» Body Material: GGG40, ASTM A351 CF8, CF8M, Special Alloys, etc.
» Seat Material: EPDM (120°C), NBR (80°C)
» Flange Standard: GB/T 9113.1, JB/T 79.1, HG 20592, ASME B16.5, EN 1092-1
» Face-to-Face: MSS SP-81
» Operation: Manual, Pneumatic, Electric, Hydraulic
» Temperature Range: -29°C to 120°C

Product Features

» Self-Cleaning Function of Disc – Equipped with a self-cleaning valve plate scraper inside the sleeve, the valve plate cleans itself as it moves, preventing clumping, reducing switch torque, and avoiding blockages.
» Integrated Elastomeric Filler – The wear-resistant, high-rebound rubber body is tightly sealed with the stuffing box and polyurethane valve liner, providing enhanced sealing, longer lifespan, and easier replacement.
» Self-Flushing Structure of Valve Seat – Prevents sedimentation of bottom slurry, ensuring 100% zero leakage every time the valve is closed.
» Easy to Replace Seat – The removable valve seat and upper sealing structure allow for on-site replacement of worn components, restoring the valve’s service life at just 15-20% of the replacement cost for the entire valve.