The application of pneumatic valve throttle refrigeration system

manual throttle pneumatic valve, pneumatic valve is the most old-fashioned throttling its appearance is similar to ordinary by the pneumatic valve. It consists of pneumatic valve, pneumatic valve, pneumatic valve stem, gland, upper cover and the handwheel and parts such as bolts.
with the pneumatic valve differs its type pneumatic valve core for needle or a v-notch cone, and pneumatic valve rod with fine thread. So, when rotating the handwheel, can make the pneumatic valve open degree of increase/decrease slowly, to ensure good regulation performance.
the size of the manual throttle pneumatic valve opens, operators need to frequently adjust, to adapt to the change of the load. Usually opening / ~ / circle, generally not more than ring, open to spend is not throttling ( Inflation) The role of.
the throttling pneumatic valve is now most was replaced by the automatic throttle body, only in the ammonia refrigeration system or test device is still in use. In the freon refrigeration system, manual throttle pneumatic valve as the standby pneumatic valve is installed in the bypass line, in order to automatically throttle body maintenance.