Hidden Stem Knife Gate Valve
Model: PZ73, PZ673, PZ973
Actuation: Handwheel, Chain Wheel, Bevel Gear, Electric, Pneumatic, Electro-hydraulic
Connection Type: Flanged, Wafer (Double Flange)
Structure Type: Hidden Stem
Sealing Type: Hard Seal, Soft Seal, Single-Sided Seal, Double-Sided Seal
Pressure Rating: PN10, PN16, 150LB
Nominal Diameter: DN50–DN1200
Materials: Cast Iron, WCB, Stainless Steel, Duplex Stainless Steel
Electric Actuator Specifications:
Power Supply: AC380V, 50Hz
Standard Type: Dustproof and rainproof housing, Protection Class IP65, suitable for outdoor use
Waterproof Type: Protection Class IP67, dustproof and immersion-resistant
Explosion-Proof Type (EX): DⅡ BT4 / DⅡ CT4
Operating Temperature: -20℃ ~ 40℃
Optional: Can be equipped with electrical control units
Key Features:
Integrated Design: Streamlined body reduces fluid resistance, ensures flexible and smooth operation.
Smooth Operation: Hand-operated screw transmission features dual-plane bearings, reducing friction for easier opening and closing.
Reliable Sealing: Movable sealing seat with O-ring preloading ensures tight contact with the gate, reducing leakage. Automatic compensation for wear enhances service life.
Guided Gate: Fixed guide pawl with no grooves prevents media accumulation or jamming.
Customizable Sealing:
Metal Hard Seal: Gate plated with chrome or ion-nitrided for wear resistance.
Soft Seal: Options include PTFE, reinforced PTFE, EPDM, or NBR for corrosion resistance and reliable sealing.
Versatile Applications: Suitable for a wide range of media; easy to operate manually, electrically, or pneumatically with high sealing performance and practical economy.
