Cleveland Controls DFS-221-227 SPDT Fixed Point Air Pressure Sensing Switch (.05inch W.C.)

Pressure Switch

The DFS-221/DSF-221 is a high-accuracy pressure switch that senses differential pressures in the range of 0.5 psig to 100 psig. Designed for use in industrial, transportation, and energy systems. This model also features a rubber diaphragm seal to inhibit leakage and ensure long operating life for many years of trouble-free service.

The DFS-221-227 SPDT Fixed Point Air Pressure Sensing Switch is for sensing a pressure difference that is created where the switch acts as a barrier between the air and some object passing through the axis of the switch. The DFS-221-227 SPDT Fixed Point Air Pressure Sensing Switch measures pressure in Pounds per Square Inch (PSI). The DFS-221-227 SPDT Fixed Point Air Pressure Sensing Switch offers a quick discharge audible alarm that is designed to prevent an air leak and an open circuit indicator light when it senses pressure loss while sensing gases or liquids. It has no

The DFS-221 through 227 air pressure sensing switches are enclosed in a stainless steel 4 x 4 x 2 inch housing, and have an adjustable set point (0.05-1.5 inches W.C.) and an adjustable time delay of 0 to 10 minutes. The switches provide a SPDT output that is energized as soon as pressure exceeds the adjustable set point, and de-energized 10 minutes after the overpressure has been released.

This point air pressure sensing switch features a SPDT stem-style actuator (single pole, dual throw) for standard 3/8" NPT connection maximum preset 5.5 psig available in either 22 or 44 position.

The DFS-221 pressure sensing switch provides a 0.003 in W.C. to 0 to 100 PSI adjustable differential pressure. This spdt pressure sensing switch is constructed of brass with a Buna N seal, a phenolic body and a cadmium plated steel spring and cap. The water content is less than 10ppm. The on-off switch contact is rated at 10 Amps @ 120 Volts AC or 240 Volts AC.

Cleveland Controls DFS-221-227 SPDT Fixed Point Air Pressure Sensing Switch (.05inch W.C.)

The DFS-221-227 is a fixed point pressure sensing switch designed for high and low pressure switches. The pressure switch features stainless steel construction that can withstand harsh environments. This air pressure sensor has NEMA 4X, IP68, and IP69K ratings to protect it from many environmental hazards such as chemicals, dust, large amounts of water, temperature extremes, and shocks. It is made to work in temperatures ranging from –40 degrees Celsius to 75 degrees Celsius.