Flow Switch Principle Of Operation

As shown in the sectional view of the pressure switch above the inlet pressure is applied to the bottom of the operating piston.

Flow switch principle of operation.

Thermal dispersion flow switch is a precise flow sensing device for liquids. This piston is forced upwards by the inlet pressure against the range spring. Flow switch operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line not to static or system pressures. Cost effective and in stock with same day shipping available.

Thermal dispersion flow switch based on the principle of heat transfer the thermal dispersion flow switch consists of two temperature sensors. 0 03 m s to 3 m s 0 1 to 9 84 ft s as relative value between 0 and 100. Learn more about the technology and operating principles behind gems sensors and controls broad portfolio of sensing products by accessing our operating principles for level pressure flow conductivity relays and barriers and ultrasonic products. The fx series flow switch is the most reliable flow switch available.

Flow switches are mechanical devices used in controlling the flow of air steam or liquid. The induced voltage is carried to the transmitter through the electrode circuit. The thermal dispersion principle of operation features no moving parts and provides an extremely reliable and repeatable switch for the most demanding industrial applications. In the presence of fluid flow controlled movement of the piston actuates an external hermetically sealed reed switch.

The tension of the range spring can be adjusted so that it is compressed at a certain pressure or setpoint. The induced voltage e is directly proportional to the velocity v of the fluid moving through the magnetic field b. Aflow switchoperates by conveying a trip motion relay reed switch paddle to another machine within the system usually a pump. The principle of operation is based on heat transfer.

Measured variable flow velocity of liquid media calorimetric measuring principle temperature rtd optional for two switch outputs or additional analog output measuring range flow.