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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Fully-Closed High-Pressure Bi-directional Knife Gate Valve, DN150-600

Industrial Valves & Actuators Gate Valves

Gate Valves

Fully-Closed High-Pressure Bi-directional Knife Gate Valve, DN150-600

Fully-closed, high-pressure, bi-directional wear-resistant knife gate valve for mineral slurry.

Quick Specifications

Type Knife gate valve

Series QWLY Series

Seal Direction Bi-directional

Configuration Flanged, fully-closed, high-pressure

Connection Flanged

Operation Manual, pneumatic, electric, hydraulic, gear

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Product Overview

A fully-closed, high-pressure, bi-directional wear-resistant knife gate valve for mineral slurry including copper, iron and gold ore. Flanged body with selectable carbon/stainless steel grades and resilient or PU seating.

Parameter	Value
Model / Series	QWLYZ43X
Product Family	Knife Gate Valve
Catalog Name	Fully-Closed High-Pressure Bi-directional Wear-resistant Knife Gate Valve
Size Range	DN150 - DN600
Pressure Rating	2.5 MPa (DN150-400) / 1.6 MPa (DN450-600)
Body / Main Material	WCB, GG40, CF8, CF8M, CF3M
Seat / Seal Material	Gate SS304 / SS316L / F53 / F55; Sealing PU / EPDM / NR; Packing PTFE / graphite
End Connection	Flanged; GB/T9124.2-2019, PN16 / PN25; DIN PN10/PN16, 150LB, JIS 10K
Actuation	Handwheel, electric, pneumatic, hydraulic, gear
Typical Application	Mineral slurry (copper, iron, gold ore slurry)

Fully-Closed High-Pressure Bi-directional Knife Gate Valve, DN150-600

Quick Specifications

Product Overview

Q: What should be confirmed before ordering?

Q: Does one series cover all materials and sizes?

Q: Can an actuator be supplied?

Q: Which documents should be requested?

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