Pneumatic Knife-Type Gate Valve

Product Name: Pneumatic Knife-Type Gate Valve

Category: Gate Valve

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Brief Introduction:

Knife-type gate valve is one kind of widely used block valves. The full round design is to guarantee no resistance, no medium stopped. The bottom of the disc is designed into blade shape which can cut off some soft medium material like paper pulp, wood pulp, at the same time, can achieve better opening and closing. And also the blade-shape disc can strike off the adhesive on the disc and clean the waste itself.

Characteristics:

1. it‘s good to save the material and installation space, and also has the efficient supportive pipe length.

2. Guide block on the valve body is to guarantee the right move of the disc, squeeze block is to guarantee the efficient sealing.

3. Its weight is 20%-30% lighter than traditional gate valves, and it is easy to install and repair.

Applications:

Knife-type gate valve is used in the pipeline system to shut off the medium in the industries like coal mining, paper-making, metallurgy, waste-water treatment, minicipal administration, food industry,

Standard:

Design and Fabrication	Face to face	Flange connection	Test and inspect
GB/T12234	GB/T12221	JB79	GB/T13927-2008
API6D	ASME B16.10	ASME B 16.5	API598
DIN EN 3352	DIN3202	DIN2543-2545	DIN3230

Technical Parameters:

Nominal Diameter(DN)	DN50-1200
Nominal Pressure（PN）	Pressure Rating Mpa	1.0	1.6
Test Pressure	Strength Test	1.5	2.4
	Strength Test	1.1	1.76
Applicable Medium	water,waste water, paper pulp,coal pulp,ash, slag-water mixture etc.
Applicable Temperature	≤200℃

 

Material for Main Parts

Parts Name	Material
Valve Body	QT450/WCB/304
Valve Deck	QT450/WCB/304
Nut for stem	QT450/ZCuAl10Fe3
Stem	2Cr13/304
Disc	WCB/304
Sealing ring	PTFE
wheel	HT250/QT450