Danfoss Pressure Switch No39
Danfoss model KP 36 pressure switch. Range adjustable 2 to 14 bar cut out pressure. Differential pressure 0.5 to 4 bar.
It can be used on any compressor motor, single or three phase, provided you use a direct on line starter, or star delta starter and the pressure switch only switch the coil of the starter.
It has normally open and normally closed contacts.
It has no mechanical off loader and it must be used with a solenoid dump valve if dumping of the access air is required.
What is a compressor pressure switch?
A compressor pressure switch is a safety device that monitors the operation of an air compressor. It is designed to protect the compressor from overheating and damaging itself in case it malfunctions. The sensor on this device is what tells the indoor blower motor when to turn off and on based upon monitoring changes in pressure; if the pressure rises too high, or drops too low, then the sensor sends a signal to cut power to the motor.
Refrigerated air dryers from 750 liters/min up to 6500 liter/min ex-stock. Larger ex overseas. Dew point 4°C under pressure. Automatic drain pre and manual drain after filters.
Screw compressors have no valves or other mechanical forces to cause imbalances unlike piston compressors.
Airpower keeps universal spare parts for compressors. Pressure switches, non return valves and safety valves are universal to all compressors. Bottom entry filters/ regulators, electric motors and starters can be used for many makes of compressors.