Wafer Knife Gate Valve, A351 CF8, 14 Inch, CL150, Bevel Gear

Key Specifications / Features

The Wafer Knife Gate Valve features a through-conduit, full-port design, providing unobstructed flow for efficient fluid handling. Constructed with an ASTM A351 CF8 stainless steel body, this 14-inch, DN350 valve is rated for Class 150 LB and PN20 pressure. It is equipped with a PTFE seat for excellent sealing and durability. With bevel gear operation, this valve allows for precise control in demanding applications.

The through conduit knife gate valve is a bi-directional wafer knife gate valve, specifically designed for handling highly concentrated flow media. Featuring a through-going O-port plate, this valve offers reliable and safe shut-off performance without the risk of clogging. Its double-seat design enables it to manage flow in both directions effectively.

Technical Specifications

» Nominal Diameter: NPS 2–24 Inch (DN50–DN600)
» Design Pressure: PN10, PN16, Class 150 LB
» Temperature Range: -29°C to 150°C
» Max Working Pressure:
  DN50–DN250: 10 bar
  DN300–DN450: 7 bar
  DN500–DN600: 4 bar
» Body Material: WCB, CF8, CF8M, Special Alloys, etc.
» Seat Material: PTFE (up to 150°C)
» Flange Standards: GB/T 9113.1, JB/T 79.1, HG 20592, ASME B16.5, EN 1092-1
» Face to Face: MSS SP-81
» Operation Types: Manual, Bevel Gear, Pneumatic, Electric, Hydraulic

Product Features

» Split-body design with a machined inner body to prevent media adhesion in the body cavity.
» Full-port design minimizes pressure drop and maximizes flow capacity.
» Packing at both the top and bottom ensures leakage prevention to the surrounding environment.
» Gate with O-port cut through a disc of media, which shears and clears the media when closing, and returns it when opening. Gate thickness can be increased to accommodate higher pressure.
» Gate surfaces are polished on both sides for a tight seal and reduced jamming.
» Gate is hard chrome-coated for enhanced metal sealing.
» Side-entry seat is replaceable, reducing maintenance costs.
» L-shaped seat retainer locks the seat into the valve body and covers the seat side to prevent direct flow flushing. With seats on both sides, the valve can handle flow in either direction.
» Stem cover is available to extend the stem’s service life.
» Two thrust bearings reduce torque for smoother operation.
» Grease nipple is provided for easy bearing lubrication.