Pneumatic Slurry Knife Gate Valve

Pneumatic slurry knife gate valve with rubber hard seal, DN50-500mm, zero leakage, flat plate design for coal slurry, pulp, mud and abrasive media handling.

Size

DN50~DN500

Body Material

Grey Cast-Iron, Carbon Steel, Stainless Steel 2520

Ambient Temperature

-15~+100℃

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Product Overview

The clamp type valve body does not limit the installation direction, has a light volume, short structure, and can be installed on various liquid pipelines. The valve plate adopts a flat plate type, which is used in the mining, refining, processing, and pipeline transportation systems of oil, natural gas, coal, and ore; In the production of chemical products, pharmaceuticals, and food; In the power production systems of hydropower, thermal power, and nuclear power; In the water supply and drainage, heating, and gas supply systems of cities and industrial enterprises; In the irrigation and drainage system of farmland; Widely used in metallurgical production systems. It is an important mechanical product closely related to production construction, national defense construction, and people's lives.

Specifications

Technical Parameters

Nominal diameter DN (mm)		50-500
Nominal pressure (MPa)		1.0-1.6
Main components	Valve body	Grey cast iron, carbon steel, stainless steel 2520
	Seal ring	Rubber hard seal
	Filler	Flexible Stone Quantity
Applicable working conditions	Applicable medium	Coal slurry, grain slurry, pulp, mud, live water mortar, slag, alkali solution and other media
Applicable working conditions	Applicable temperature	-15~+100℃
Actuator	Single-acting	Equipped with a reset cylindrical spring and automatic reset function upon gas loss
Actuator	Double-acting	It has greater thrust than a single-acting cylinder of the same diameter, but does not have an automatic reset function
Optional Accessories		Electromagnetic valve, limit switch, filter pressure reducing valve, manual mechanism

Main dimensions and connection dimensions (mm)

Nominal diameter DN	Main Connection Dimension
Nominal diameter DN	L1	H	L0	D1	D2	N-Φd
50	185	335	48	125	100	4-Φ16
65	185	363	48	145	120	4-Φ16
80	232	395	50	160	135	4-Φ16
100	232	465	50	180	155	8-Φ16
125	232	530	50	210	185	8-Φ16
150	283	630	60	240	210	8-Φ20
200	283	750	60	295	265	8-Φ20
250	283	900	70	355	320	12-Φ20
300	283	1120	80	410	375	12-Φ20
350	283	1260	80	460	430	16-Φ20
400	335	1450	90	515	482	16-Φ22
450	363	1600	120	565	532	20-Φ22
500	395	1800	130	620	585	20-Φ22

Downloads

Fluid Control 2026

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Application & Case

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