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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Unidirectional Seal Knife Gate Valve, DN50-2000

Industrial Valves & Actuators Gate Valves

Gate Valves

Unidirectional Seal Knife Gate Valve, DN50-2000

Fully-enclosed unidirectional-seal knife gate valve for slurry and solid-media service to DN2000.

Quick Specifications

Type Knife gate valve

Series QYV Series

Seal Direction Unidirectional

Configuration Wafer / Lug, fully enclosed

Connection Wafer / Lug / Flange

Operation Manual, pneumatic, electric, hydraulic, gear, lever

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Product Overview

A fully-enclosed, unidirectional-seal knife gate valve covering DN50 to DN2000 with progressively rated working pressures. Suited to abrasive slurry, mineral slurry and general solids-handling pipelines.