China Water Flow Switches for Water Control

The operating principle bases on a free-floating magnetic piston, which Responds only to the motion of fluid within the pipeline, not to static or system pressure. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch, thus producing the required signal which can be used to actuate audible or visual alarms as well as relays or other.
Features:
1) Housing material: PBT.
2) Spring material: Stainless steel SUS304 or SUS316.
3) Retaining rings material: Stainless steel SUS304.
4) Operating pressure: 300 PSI max.
5) Temperature range: -40 - 125 degree C
6) Reed switch carry current: 1.5A.
7) Reed switch current: 1.0A max.
8) Reed switch voltage: 300V AC, 250V DC.
9) Reed switch power rating: 70A.
10) Lead wire: AWG 22, to 18, 300mm length, UL1430, or as required.
11) Flow range: 0.75L~2.0L min.
12) Set point accuracy: 10% max.
13) Set point difference: 15%.
15) Repeatability: 2% max.
16) Mounting orientation (horizontal or vertical): As signal of flow direction.

ItemTechnical ParameterCompatibleClean fluidAccuracy±3% of readingRepeatability±0.5% of readingNominal Flow RatesFrom 0.1 to 1.0 or 0.8 to 10 gpmTemperature and Pressure16 bar @ 20ºCRotorPP or client requiredBodyPP or client requiredBearings and ShaftCeramic or SUS304 1/2" 1/4" 3/8" flexible tubingInput Power5 to 24 VDC @ 1.0mA maxOutput SignalOpen collector NPN transistor sinking a maximum of 30mA