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Gate Valves Knife gate

Unidirectional Seal Knife Gate Valve, DN50-1000, PN10

Packing-less, fully-enclosed unidirectional-seal knife gate valve for medium-pressure slurry service.

Quick Specifications

Type
Knife gate valve
Series
QYZ73X
Seal Direction
Unidirectional
Configuration
Wafer / Lug, packing-less, fully enclosed
Connection
Wafer / Lug / Flange
Operation
Manual, pneumatic, electric, hydraulic, gear, lever

Product Details

A unidirectional-seal knife gate valve with packing-less, fully-enclosed construction for medium-pressure duty. Available in manual and pneumatic configurations across a wide size range, with wafer, lug and flanged connections.

Specifications

ParameterValue
Model / SeriesQYZ73X
Product FamilyKnife Gate Valve
Catalog NameUnidirectional Seal Knife Gate Valve
Size RangeDN50 - DN1000
Pressure RatingPN10 (measured 0.6 - 2.8 MPa)
Body / Main MaterialWCB, CF8, CF3M (also F55, F53, 2205)
Seat / Seal MaterialEPDM, FKM, NBR, PTFE; Packing PTFE
End ConnectionWafer / Lug / Flange; DIN PN10/PN16, 150LB, JIS 10K, ASME B16.5 (2"-24"), ASME B16.47 (26"-60"), AS2129 Table D/E
ActuationHandwheel, electric, pneumatic, hydraulic, sprocket, electro-hydraulic, gear, lever
Typical ApplicationMunicipal sewage treatment, pharmaceuticals, chemical industry

FAQ

What should be confirmed before ordering?

Confirm the model, DN size, body/gate material, seat material, pressure class, flange standard, medium and actuator option against the selected catalog drawing.

Does one series cover all materials and sizes?

No. Materials, dimensions and pressure limits depend on the exact model suffix and DN size shown in the catalog material and dimension tables.

Can an actuator be supplied?

Manual, pneumatic, electric and other actuation options are catalog-dependent. Confirm the actuator type, control mode and mounting details for the final valve selection.

Which documents should be requested?

Request the current dimensional drawing, material list, inspection requirement and final technical confirmation for the selected model and size.

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