Manufacturer direct sales pneumatic sleeve regulating valve ZJHM-100C pneumatic thin film sleeve regulating valve DN40

Description :

　　1. Purpose and characteristics

　　A、 The purpose and characteristics of pneumatic control valve: It is a right angle rotary structure that can be used in conjunction with a valve positioner to achieve proportional adjustment; The V-shaped valve core is suitable for various regulating occasions, with a large rated flow coefficient, adjustable ratio, good sealing effect, sensitive regulating performance, small volume, and can be installed vertically and horizontally. Suitable for controlling media such as gases, vapors, liquids, etc.

　　B、 Features: It is a right angle rotating structure composed of a V-shaped valve body, pneumatic actuator, locator, and other accessories; There is an inherent flow characteristic that is approximately equal in percentage; Adopting a dual bearing structure, the starting torque is small, and it has good sensitivity and induction speed; Superb cutting ability.

　　C、 The pneumatic piston actuator uses compressed air as the power source, which drives the crank arm to rotate 90 degrees through the movement of the piston, achieving automatic opening and closing of the valve. Its components include: adjusting bolts, actuator housing, crank arm, cylinder block, cylinder shaft, piston, connecting rod, and universal joint.

　　D、 The working principle of pneumatic control valve: Pneumatic control valve consists of an actuator and a regulating mechanism. The actuator is the thrust component of the regulating valve, which generates corresponding thrust according to the magnitude of the control signal pressure, and drives the action of the regulating mechanism. The valve body is the regulating component of a pneumatic control valve, which directly contacts the regulating medium and regulates the flow rate of the fluid.

　　2. Installation principles

　　(1) The installation position of the pneumatic control valve should be at a certain height from the ground, and there should be some space above and below the valve for disassembly, assembly, and repair. For regulating valves equipped with pneumatic valve positioners and handwheels, it is necessary to ensure easy operation, observation, and adjustment.

　　(2) The regulating valve should be installed on a horizontal pipeline and perpendicular to the pipeline, generally supported under the valve to ensure stability and reliability. For special occasions where the regulating valve needs to be installed horizontally on a vertical pipeline, the regulating valve should also be supported (except for small-diameter regulating valves). During installation, avoid adding additional stress to the regulating valve.

　　(3) The working environment temperature of the regulating valve should be within (-30~+60), and the relative humidity should not exceed 95%.

　　(4) There should be a straight pipe section at the front and rear positions of the regulating valve, with a length not less than 10 times the diameter of the pipeline (10D), to avoid the valve's straight pipe section being too short and affecting the flow characteristics.

　　(5) When the diameter of the regulating valve is different from that of the process pipeline, a reducing pipe should be used for connection. When installing small-diameter regulating valves, threaded connections can be used. The fluid direction arrow on the valve body should be consistent with the fluid direction.

　　(6) To set up a bypass pipeline. The purpose is to facilitate switching or manual operation, allowing for maintenance of the regulating valve without stopping the vehicle.

　　(7) Before installation, the regulating valve should be thoroughly cleaned of foreign objects such as dirt, welding slag, etc. in the pipeline.

　　3. Standard technical parameters

　　4. Company actual shooting

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