ASTM A351 CF8M Knife Gate Valve, 2 IN, CL150, Unidirectional

Our ASTM A351 CF8M Stainless Steel Knife Gate Valve is a high-quality unidirectional valve designed for reliable flow control. It features a durable stainless steel body made from ASTM A351 CF8M material, ensuring excellent corrosion resistance and long-lasting performance. The valve has a 2-inch (DN50) diameter and is available in pressure ratings of Class 150 LB (PN10/PN16), making it suitable for a wide range of industrial applications. Equipped with pneumatic actuation, it offers precise and efficient operation.

Product Name: ASTM A351 CF8M Knife Gate Valve
Type: Unidirectional Knife Gate Valve
Body Material: ASTM A351 CF8M
Size: 2 Inch, DN50
Pressure: Class 150 LB, PN10/PN16
End Connection: Wafer
Operation: Pneumatic Actuator
Temperature Range: -29°C to 538°C
Medium: Used for pulp, coal ash, sewage, food, etc

The KU series knife gate is a unidirectional wafer valve designed for on-off operation in industrial pipelines. Its unique structure eliminates potential shutoff clogging when handling flows containing particles. The beveled knife gate design generates high shear force for easy penetration through the flow.

Technical Specification

» Nominal Diameter: NPS 2-24 Inch (DN50-DN600)
» Design Pressure: PN10, PN16, Class 150 LB
» Temperature Range: -29°C to 538°C
» Max Working Pressure:
  DN50-DN250: 10 bar
  DN300-DN450: 7 bar
  DN500-DN600: 4 bar
» Body Material: Carbon Steel, Stainless Steel, Special Alloy, etc.
» Disc Material: Stainless Steel Chrome Plated, Special Alloy, etc.
» Seat Material: Stainless Steel + STL, EPDM (120°C), Viton (200°C), PTFE (200°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
» Medium: Pulp, Coal Ash, Sewage, Food, etc.
» Applications: Pulp & Paper, Water Treatment, Beverage & Food, Fine Chemicals, Power Plants, Steel Industry, etc.

Structural Diagram

Product Features

» Cast-in guide claws at the port bottom, instead of a groove, eliminate potential shutoff clogging while providing a tight seal. These claws push the gate toward the seat for a secure seal in the closed position.
» Integral body design ensures easy assembly and zero shell leakage.
» Full-port design minimizes pressure drop and maximizes flow capacity.
» PTFE resilient points against the gate eliminate metal-to-metal contact between the gate and body.
» Super-thin body design and compact construction allow easy installation.
» Beveled knife edge provides strong cutting force and tight sealing.
» Gate thickness can be increased to withstand higher pressures.
» Side-entry seat is replaceable, reducing maintenance costs.
» L-shaped seat retainer locks the seat into the valve body and shields the seat side from direct flow flushing.
» Stem cover is available to extend stem service life.
» Two thrust bearings minimize operating torque.
» Grease nipple provided for easy bearing lubrication.