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Gate Valves Knife gate

Heavy-duty Bi-directional Through-type Knife Gate Valve, DN50-400

Heavy-duty bi-directional through-type knife gate valve for abrasive granular and slurry media.

Quick Specifications

Type
Knife gate valve
Series
QCB Series
Seal Direction
Bi-directional
Configuration
Wafer, heavy-duty, through-type
Connection
Wafer
Operation
Manual, pneumatic, electric, hydraulic, gear, lever

Product Details

A heavy-duty, bi-directional sealing, through-type knife gate valve for abrasive service such as cement slurry, ore pulp, coal slurry, paper pulp, tailings and dust-laden media. Rated for higher working pressures than the standard through-type series.

Specifications

ParameterValue
Model / SeriesQCBZ73X
Product FamilyKnife Gate Valve
Catalog NameHeavy-duty Bi-directional Through-type Knife Gate Valve
Size RangeDN50 - DN400
Pressure Rating1.8 / 1.6 / 1.2 MPa
Body / Main MaterialF55, F53, 2205, CF3M, CF8M, CF8, WCB
Seat / Seal MaterialNBR, EPDM, PTFE, FKM, Graphite, Metal
End ConnectionWafer; design JB/T8691-2013, flange GB/T9113.1-2010, ASME B16.5/B16.47, AS2129 Table D/E
ActuationHandwheel, electric, pneumatic, hydraulic, sprocket, electro-hydraulic, gear box, lever
Typical ApplicationCoal preparation & slag discharge, mining & power plants, municipal sewage, food, papermaking, pharmaceuticals, petroleum, chemical

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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