Bevel Gear Knife Gate Valve, Ductile Iron GGG40, DN800, PN10

Product Name: Bevel Gear Knife Gate Valve
Type: Bidirectional Knife Gate Valve
Body Material: Ductile Iron GGG40
Size: DN800, 32 Inch
Pressure: PN10, Class 150 LB
End Connection: Wafer
Operation: Bevel Gear

The maintenance-free compact cross seal, featuring a double seal lip profile, ensures a tight shutoff and can be easily adjusted without interrupting the operation. A self-cleaning effect is achieved through flush-out corners in the body and the cutting edge beneath the gate. Solids and fibers are cut by the cutting edge before the seal tightens against the elastic seat. The gate's guidance is interrupted during stroke length, allowing dirt to be ejected. Bidirectional shutoff is provided by the lateral gate surfaces and an elastic seat integrated into the body. The seat is chambered and prestressed for optimal performance. High-quality finishes on the guide and sealing surfaces on both sides ensure long service life and tight shutoff. The lateral guidance of the gate prevents fluttering in either flow direction or during throttling.

Technical Specifications

» Nominal Diameter: NPS 2–16 Inch (DN50–DN400)
» Design Pressure: PN10, PN16, Class 150 LB
» Temperature Range: -29°C to 120°C
» Max Working Pressure:
  DN50–DN250: 10 bar
  DN300–DN450: 7 bar
  DN500–DN600: 4 bar
» Body Material: GGG40, ASTM A351 CF8, CF8M, Special Alloys, etc.
» Disc Material: Stainless Steel, Chrome Plated, 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

Product Features

» Bidirectional
» Split body
» Flat knife edge
» Light torque
» Support yoke
» Epoxy coating – fusion-bonded paint
» Sealing type