Pneumatic knife gate valve1Pneumatic knife gate valve1Pneumatic knife gate valve1
Pneumatic knife gate valve1Pneumatic knife gate valve1Pneumatic knife gate valve1

Pneumatic knife gate valve

Size: DN50-900

Pressure: PN10,PN16,150LB

Suitable temperature: -38~+900℃

Seal type: Hard seal, soft seal

Media: Slurry、Powder、Fiber

Connecting flange: ANSI B16.5、GB/T9113、JB/T79、HG、SH、JIS、DIN、NF、BS

Host materials: WCB、ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti、CF8、CF8M、CF3、CF3M

Product Introduction

Pneumatic knife gate valve is a kind of valve that uses pneumatic devices to promote the blade switch. It is usually composed of pneumatic execution mechanisms, air distribution valves, solenoid valves, and manual control devices. It uses compressed air, airflow or air pressure to push the piston and piston rods in the pneumatic execution mechanism, and then drive the driver to rotate or promote the turnover, close, or adjust the traffic.

Why choose us!

  • WESDOM patent products, patent certification

    The product side flanges comply with national, German, Russian, American, British and Japanese standards and other domestic and international standards

    for multiple pressures, easy connection and wide adaptability, which can reduce the type of purchase and stock.

  • The product has an independent identity to ensure traceability

    Each wesdom product has its own unique identification number, to ensure product traceability.

  • Provide material inspection report

    All wesdom products can provide the material inspection report of the main parts.

  • One-stop service

    One-stop service, we not only supply high quality products, also supply solutions and after-sales service.

  • WESDOM has a lot of project experience

    We have a lot of project experience in countries such as Pakistan and the Philippines, WESDOM has always been noticed all over the world, and trust comes from quality.

  • WESDOM has a strict quality control system

    WESDOM has a strict quality control system and before delivery, we test 100% of each product to ensure its quality, promising you a high quality product.


Quality Control Process

quality control process

Standard Test



Factory Tour

WESDOM GROUP consists of 5 factories and 4 overseas branches. The five factories are mainly located in Tianjin, Hebei, Shandong, Lianyungang and Wenzhou. The four foreign branches are located in Tanzania, Zambia, Kenya and Indonesia.

Detailed parameters

Nominal diameter L D D1  D2  Flange hole  Spindle bore
Inch  mm
2″ 50 48 152 120.5 92 4-W5/8 19
2 1/2″ 65 48 178 139.5 105 4-W5/8 19
3″ 80 51 190 152.5 127 4-W5/8 19
4″ 100 51 229 190.5 157 8-W5/8 19
5″ 125 57 254 216.5 186 8-W3/4 22
6″ 150 57 279 241.5 216 8-W3/4 22
8″ 200 70 343 298.5 270 8-W3/4 22
10″ 250 70 406 362 324 12-W7/8 25
12″ 300 76 483 432 384 12-W7/8 25
14″ 350 76 533 476 413 12-W1 29
16″ 400 89 597 539.5 470 16-W1 29
18″ 450 89 635 578 533 16-W11/8 32
20″ 500 114 698 635 584 20-W11/8 32
24″ 600 114 813 749.5 692 20-W11/4 32
28″ 700 117 927 863.6 800 28-W11/4 35
30″ 750 117 984 914.4 857 28-W11/4 35
32″ 800 130 1060 978 914.4 28-W11/2 41
36″ 900 160 1168 1086 1022 32-W11/2 41


wesdom gate valve

Advantages of pneumatic knife gate valve!

  • High reliability

    The execution agency of the pneumatic knife gate valve is pneumatic element. It has the advantages of simple structure, easy operation,and

    high reliability, and there is no electric spark during the opening and closing process of the valve, eliminating the hidden dangers of fire and


  • Good control stability

    Due to pneumatic knife gate valve can monitor the parameters such as flow, pressure, temperature, and control the stability better.

  • Long-distance control

    The pneumatic knife gate valve can be used in conjunction with equipment such as the PLC control system and DCS digital control system to

    achieve long -range automatic control.

  • Good anti-corrosion performance

    The pneumatic knife gate valve can be selected for corrosion-resistant materials such as cast steel, stainless steel, and plastic to meet the

    requirements for various corrosive media.

  • Wider range of applications

    Due to the materials and structure of the pneumatic knife gate valve can be selected according to the characteristics of the medium and the use

    scenarios, it is very suitable for the control of medium such as different treatment, corrosive, high pressure, high temperature, and low

    temperature in some special working environments.




Project Name: Pakistan Cardboard Factory

Main Products: DIN SS316 seamless pipes, DIN SS316 fittings, DIN SS316 flanges, SS knife gate valves, SS316 ball valves

This customer is the owner of a cardboard factory in Pakistan. The factory needs a lot of pipe fittings and valves. He also compared more than a dozen valve companies online, and then was deeply moved by the professional expression and enthusiasm of the business personnel of the WESDOM international department in the final. And they choose to cooperate with WESDOM. Although it is the first time to cooperating with each other, the final customer also gave us a high evaluation, WESDOM is very good!

Project Pictures:




wesdom gate valve




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