Description
Wafer Unidirectional Knife Gate Valve
Technical Data
Size: DN 50 to DN 600 (larger diameters on request)
Working pressure:
DN 50 to DN250 10 Bar NPS 2-10 150 psi
DN 300 to DN450 7 Bar NPS 12-18 90 psi
DN 500 to DN600 4 Bar NPS 20-24 60 psi
DN 700 to DN1200 2 Bar NPS 28-52 30 psi
Standard flange connection:
EN1092 GB/T 9113
ASME B16.5 AS 2129/4087
JIS B2220 Others on request
Application:
Pulp and Paper/ Mining /Waste Water Treatment/ Food and Beverage/Chemical Plants/ Power Plants/ Steel Industry/Etc.
Note: Hand wheel nut is available for valve without stem protector. Non-stainless parts are epoxy coated.
BODY:
• Cast-in guide claws at the port bottom for gate fixture, instead of a groove, eliminate
potential valve shutoff clogging while providing a tighter seal.
• Integral body design ensures easy assembly and 0 shell leakage.
• Full port design minimizes pressure drop and maximizes flow capacity.
• PTFE resilient point against gate eliminate metal-metal contact between gate and body.
GATE:
• Beveled knife edge provides strong cutting stress and tight sealing.
• Gate thickness can be increased to meet higher pressure.
• Gate surface is well polished on both sides for a tight seal and less jamming.
• Gate is hard chrome coated for the metal sealing valve.
SEAT:
• Side-entry seat is replaceable, reducing the cost of maintenance.
• Preloaded seat is adjustable to meet different sealing classes and compensate for sea wear.
• L-shape seat retainer locks the seat into the valve body and covers the seat side to prevent direct flow flushing.
Other:
• Stem cover is available to ensure long service life for the stem.
• Two thrust bearings minimize torque for operation.
• Grease nipple is available to ease bearing lubrication.
