What is a pneumatic knife gate valve?
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.
Advantages of the pneumatic knife gate valve：
1. 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 explosion.
2. Good control stability
Due to pneumatic knife gate valve can monitor the parameters such as flow, pressure, temperature, and control the stability better.
3. 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.
4. 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.
5. 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.
1. 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.
2. The product has an independent identity to ensure traceability
Each wesdom product has its own unique identification number, to ensure product traceability.
3. Provide material inspection report
All wesdom products can provide the material inspection report of the main parts.
4. One-stop service
One-stop service, we not only supply high quality products, also supply solutions and after-sales service.
5. 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.
Quality control process
Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
Special Test: On request, any other test can be carried out according to special instruction by client.