Pneumatic Actuated Knife Gate Valves, A351 CF8M, DN50, PN10

Key Specifications / Features

The Pneumatic Actuated Knife Gate Valve features a through-conduit structure with a corrosion-resistant ASTM A351 CF8M stainless steel body and a PTFE seat for excellent sealing performance. Designed for DN50 (2-inch) pipelines with PN10 and Class 150 LB ratings, it ensures efficient flow control in demanding applications. Its wafer-end design allows easy installation, while the pneumatic actuator enables automated operation.

The through-conduit knife gate valve is a bi-directional wafer-style valve designed for handling highly concentrated flow media. Featuring a through-going O-port plate, this valve ensures stable and safe shut-off performance without clogging. Its double-seat design allows it to handle flow in both directions, providing reliable operation in demanding applications.

Technical Specifications

» Structure: Through Conduit Knife Gate Valve
» Nominal Diameter: NPS 2-24 Inch (DN50-DN600)
» Design Pressure: PN10, PN16, Class 150 LB
» Max Working Pressure:
  DN50-DN250: 10 bar
  DN300-DN450: 7 bar
  DN500-DN600: 4 bar
» Body Material: ASTM A216 WCB, A351 CF8, CF8M, Special Alloys, etc.
» Seat Material: PTFE (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 Options: Manual, Bevel Gear, Pneumatic, Electric, Hydraulic
» End Connections: Wafer Type
» Temperature Range: -29°C to 150°C

Product Features

» Split-Body Design: The machined inner body prevents media adhesion in the body cavity.
» Full Port Design: Minimizes pressure drop and maximizes flow capacity.
» Leak-Proof Packing: Seals at both the top and bottom to eliminate leakage to the surrounding environment.
» Through Gate with O-Port: The gate cuts through the media when closing and returns the portion when opening. Gate thickness can be increased to handle higher pressures.
» Polished Gate Surface: Both sides of the gate are well-polished to ensure a tight seal and reduce jamming.
» Hard Chrome Coated Gate: Provides a metal-sealing valve for enhanced durability.
» Replaceable Side-Entry Seat: Reduces maintenance costs by allowing easy seat replacement.
» L-Shape Seat Retainer: Locks the seat into the valve body and covers the seat side to prevent direct flow flushing.
» Bidirectional Flow: With seats on both sides, the valve can handle flow in both directions equally.
» Stem Cover: Available to extend the stem's service life.
» Two Thrust Bearings: Minimize torque for smoother operation.
» Grease Nipple: Allows for easy bearing lubrication.