Valve instruction manual knife gate valve pneumatic knife gate valve installation and use

Valve instruction manual knife gate valve pneumatic knife gate valve installation and use Manual valves Turn the handwheel by hand to make the stem rise and fall, thus driving the upward and downward motion of the gate and closing the valve. Rotate clockwise in the direction of rain, the gate drops and the valve closes. Turn counterclockwise, the gate rises and the valve opens. The triangular bracket saves raw materials and ensures the required mechanical properties. The guide block on the body moves the gate correctly. Extruded block ensures effective seal of gate. The stainless steel stem is durable and the double thread is used to open and close more quickly. 1. Use: This valve is suitable for stopping the flow of slurry, sewage, dust and other media on the pipeline. Ii. Performance specifications Three, structural characteristics: 1. The raised sealing surface of the gate can scrape the adhesive material on the sealing surface and automatically sundries. 2. Stainless steel gate can prevent seal leakage caused by corrosion. 3. The whole stainless steel material can prevent corrosion damage. 4. Short structural length, can save raw materials, installation space, but also effectively support pipeline strength. 5. Scientific sealing packing box design, make the upper seal safe and effective, durable. 6. The triangular bracket saves raw materials and ensures the required mechanical properties. 7. The guide block on the valve body makes the ram move correctly. Extruded block ensures effective seal of gate. 8. Valve body reinforcement design to improve the strength of the valve body. 9. Stainless steel stem durable, double thread use more rapid opening and closing. 10. The basic structure of the valve is shown in Figure 1 Four, the working principle Manual valves Turn the handwheel by hand to make the stem rise and fall, thus driving the upward and downward motion of the gate and closing the valve. Rotate clockwise in the direction of rain, the gate drops and the valve closes. Turn counterclockwise, the gate rises and the valve opens. V. Storage, maintenance, installation and use 5.1 The valve should be stored in a dry and ventilated room, and both ends of the valve channel should be blocked. 5.2 Long-term stored valves should be checked regularly to avoid dirt. Special attention should be paid to the cleaning of the secret cover and the damage of the secret cover. 5.3 Before installation, please carefully check whether the valve mark is consistent with the use requirements. 5.4 Before installation, check the valve cavity and sealing surface. If there is dirt, clean it with a clean cloth. Vi. See Table 1 for possible failures, causes and elimination methods Table 1 Possible failures, causes and elimination methods Installation and use of pneumatic knife gate valve Pneumatic knife gate valve is to use pneumatic actuator to control the valve, so as to realize the valve opening and closing. It can be divided into two parts, the upper part is the pneumatic actuator, the lower part is the valve. Installation and use process: 1. Before installation, check the valve cavity and sealing surface, and no dirt or sand is allowed to attach; This type of valve should generally be installed horizontally in the pipeline. 2. The bolts at each connection part should be tightened evenly; 3. Check the packing parts to press tightly, not only to ensure the sealing of the packing, but also to ensure the flexible opening of the gate; 4. Before installing the valve, the user must check the valve model, connection size and pay attention to the medium flow direction to ensure the consistency with the valve requirements; 5. When installing the valve, the user must reserve the necessary space for the valve drive; 6. The wiring of the driving device shall be carried out according to the circuit diagram; 7. Pneumatic knife gate valve must be maintained regularly, not collision and extrusion, so as not to affect the seal.