FSD SERIES DIFFERENTIAL PRESSURE CONTROLS

FSD series differential pressure controls (oil pressure control) protect the refrigeration compressor and other machineries. In refrigeration system, lubrication system must be kept in a certain oil pressure in order to get suitable lubrication for every part. If the oil pressure is too low, compressors will have "Cylinder sticking" for losing oil in normal running or starting, even destroy the bearing pad of the compressor. The differential pressure control receives the signal of discharge pressure from lubricating oil pump and suction pressure
from compressor. And it maintains the two pressures in a certain differential range. When the differential is lower than the setting one, the switch automatically cuts the compressor circuit off to stop running.

FSD series differential pressure controllers can be used not only in refrigeration systems using Freon refrigerants but also in R717 refrigeration systems.

Complies with the People's Republic of China Mechanical Industry Standard JB/T 7961-95 'Pressure and Differential
Pressure Controllers for Refrigeration.'"
Approvals: CE、Rohs and other certifications.