Pneumatic Knife Gate Valve, ASTM A351 CF8, DN100, PN10, 4 IN

Product Name: Pneumatic Through Conduit Knife Gate Valve
Body Material: ASTM A351 CF8
Seat Material: PTFE
Size: DN100, 4 Inch
Pressure: PN10, Class 150 LB
End Connection: Wafer
Operation: Pneumatic Actuator

The through-conduit knife gate valve is a bi-directional wafer-type 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 the risk of clogging. Its double-seat design allows it to manage flow in both directions, providing reliable control in various industrial applications.

Technical Specifications

» 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 (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
» Temperature Range: -29°C to 150°C
» Operation Types: Manual, Bevel Gear, Pneumatic, Electric, Hydraulic

Product Features

» Split-Body Design: Machined inner body prevents media adhesion in the body cavity.
» Full Port Design: Minimizes pressure drop and maximizes flow capacity.
» Leak-Proof Packing: Packing at both the top and bottom eliminates leakage to the surrounding.
» Through Gate with O-Port: The gate cuts through the media when closing and returns it when opening, with increased thickness for higher pressure.
» Polished Gate Surface: Both sides are polished for a tight seal and reduced jamming.
» Hard Chrome Coated Gate: Ensures metal sealing for 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 Handling: Seats on both sides allow the valve to handle flow in both directions equally.
» Stem Cover: Ensures a long service life for the stem.
» Minimized Torque: Two thrust bearings reduce operating torque.
» Grease Nipple: Provides lubrication for bearings to enhance performance and longevity.