Smooth operation of throttle linkage and throttle body air valve.
节流连杆和节流体空气阀的平稳操作。
Air inlet throttle valve with pneumatic actuator and positioner.
空气进气节流调节阀：带有气动定位和执行机构。
Adding air pressure within the annular space between the housing and sleeve can throttle, or close the valve.
在阀体外壳和套管之间的环形空间内施加气压，即可实现阀门的节流和关闭功能。
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