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Pipeline pneumatic valves can be used in conjunction with valve positioners to achieve proportional control.
Release time:
2026-04-07 15:22
Why is it said that valve positioners can be used in conjunction with pipeline-type pneumatic valves? Pipeline-type pneumatic valves refer to various pneumatic components in a pneumatic system that control the pressure, flow rate, and flow direction of compressed air, thereby ensuring the normal operation of pneumatic actuators or mechanisms. Components that control and regulate compressed-air pressure are called pressure-control valves; those that control and regulate compressed-air flow are called flow-control valves; and those that change and control the flow direction of compressed air are called directional-control valves.
Pneumatic pipeline valves are valves actuated by compressed air. In the current market economy, it is insufficient to simply specify the nominal size, type, and working pressure when procuring pneumatic pipeline valves, as manufacturers, in order to remain competitive, each adopt a unified design approach while introducing their own innovations, thereby developing proprietary enterprise standards and distinctive product characteristics. Therefore, it is essential to articulate detailed technical requirements during procurement, coordinate with the manufacturer to reach mutual agreement, and include such specifications as an annex to the procurement contract for pneumatic pipeline valves.
The pneumatic piston actuator uses compressed air as its power source; the reciprocating motion of the piston drives the crank arm to rotate through 90 degrees, thereby enabling the valve to open and close automatically. Its constituent components include: adjusting bolts, actuator housing, crank arm, cylinder body, cylinder shaft, piston, connecting rod, and universal joint.
The pipeline pneumatic valve features a right-angle rotary actuator and is designed for use with a valve positioner to enable proportional control. The V-notch valve plug is suitable for a wide range of control applications, offering a high rated flow coefficient, a large turndown ratio, excellent sealing performance, responsive control characteristics, a compact footprint, and the flexibility to be installed in both vertical and horizontal orientations. It is ideal for controlling gases, steam, liquids, and other media.
2020-01-19
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