GEMS SENSORS Flow Switches
Stainless-steel, brass, bronze, polypropylene and Ryton flow switches designed to control the flow of liquids, gases or steam. Feature a maximum fluid temperature of 300 degrees F, and can withstand a maximum pressure of 2000 psi

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<p>Flow switches detect fluid flow in hydraulic systems and prevent leaks. They are used in pumps in the water treatment, oil & gas and chemical industries.</p>

GEMS SENSORS -

FS-150Series Flow Switch

Style	Model	Flow Rate	Switch Type	Price
A	FS-150 NO 0.5GPM	0.5 gpm	SPST, Normally Open @ No Flow	€232.40
A	FS-150 NC 0.5GPM	0.5 gpm	SPST, Normally Closed @ No Flow	€220.99
A	FS-150 NC 1.0GPM	1 gpm	SPST, Normally Closed @ No Flow	€215.18
A	FS-150 NO 1.0GPM	1 gpm	SPST, Normally Open @ No Flow	€232.40
A	FS-150 NO 2.0GPM	2 gpm	SPST, Normally Open @ No Flow	€220.57
A	FS-150 NO 3.0GPM	3 gpm	SPST, Normally Open @ No Flow	€232.40

GEMS SENSORS -

Air Flow Switch Piston Spdt 20va

Style	Model	Body Material	Material	Price
A	FS-10798 25365	Brass	Brass, SS, Viton, Epoxy	€1,001.20
A	FS-10798 25366	Stainless Steel	SS, Viton, Epoxy	€1,626.92

GEMS SENSORS -

FS-500 Series Flow Switch

Style	Model	Flow Rate	Price
A	FS-500 170232	0.5 gpm	€180.23
A	FS-500 170231	0.25 gpm	€841.81
A	FS-500 170233	1 gpm	€187.44
A	FS-500 175117	2 gpm	€188.50
A	FS-500 170234	2.5 gpm	€186.14
A	FS-500 170235	5 gpm	€179.27

GEMS SENSORS -

FS-927 Series Flow Switch

Style	Model	Flow Rate	Switch Type	Price
A	FS-927 70820	0.1 gpm	SPST, NO	€245.79
A	FS-927 70826	0.1 gpm	SPST, NC	€247.49
A	FS-927 70828	0.5 gpm	SPST, NC	€247.49
A	FS-927 70822	0.5 gpm	SPST, NO	€255.79
A	FS-927 70827	0.25 gpm	SPST, NC	€173.24
A	FS-927 70821	0.25 gpm	SPST, NO	€255.79
A	FS-927 70823	0.75 gpm	SPST, NO	€247.49
A	FS-927 70829	0.75 gpm	SPST, NC	€247.49
A	FS-927 70824	1 gpm	SPST, NO	€250.21
A	FS-927 70830	1 gpm	SPST, NC	€247.49
A	FS-927 70825	1.5 gpm	SPST, NO	€260.81
A	FS-927 70831	1.5 gpm	SPST, NC	€173.24

GEMS SENSORS -

Flow Switch 20 Cm/sec

Style	Model	Connection Size	Price
A	20X872	1 FNPT	€884.73
A	20X876	1-1/2 FNPT	€820.55
A	20X864	1/2 FNPT	€919.97
A	20X868	3/4 FNPT	€876.42

GEMS SENSORS -

Flow Switch 40 Cm/sec

Style	Model	Connection Size	Flow Rate	Price
A	20X871	1 FNPT	5 cm/sec	€876.42
A	20X873	1 FNPT	40 cm/sec	€876.42
A	20X877	1-1/2 FNPT	40 cm/sec	€820.55
A	20X875	1-1/2 FNPT	5 cm/sec	€884.73
A	20X865	1/2 FNPT	40 cm/sec	€876.42
A	20X863	1/2 FNPT	5 cm/sec	€665.43
A	20X869	3/4 FNPT	40 cm/sec	€688.38
A	20X867	3/4 FNPT	5 cm/sec	€884.73

GEMS SENSORS -

Flow Switch 60 Cm/sec

Style	Model	Connection Size	Price
A	20X874	1 FNPT	€876.42
A	20X878	1-1/2 FNPT	€657.42
A	20X866	1/2 FNPT	€876.42
A	20X870	3/4 FNPT	€884.73

GEMS SENSORS -

Liquid Flow Switch

Style	Model	Material	Max. Pressure	Body Material	Max. Ambient Temp.	Max. Fluid Temp.	Connection Size	Type	Voltage	Price
A	RFS 156265	Brass, Ceramic, PPS Composite, Polysulfone, Viton	200 psi	Brass	150 F	212 F	1/4 FNPT	Rotor	24 VDC	€660.03
A	RFS 156268	Brass, Ceramic, PPS Composite, Polysulfone, Viton	200 psi	Brass	150 F	212 F	1/2 FNPT	Rotor	24 VDC	€662.35
A	RFS 180395	Brass, Ceramic, PPS Composite, Polysulfone, Viton	200 psi	Brass	150 F	212 F	3/4 FNPT	Rotor	24 VDC	€683.41
A	RFS 181688	Brass, Ceramic, PPS Composite, Polysulfone, Viton	200 psi	Brass	150 F	212 F	1 FNPT	Rotor	24 VDC	€730.79
B	FS-550 29609	Brass, SS, Ceramic, PTFE	2000 psi	Brass	300 F	300 F	1 MNPT	Paddle	24V-240V AC/DC	€529.27
C	FS-400 26601	Bronze, Delrin, SS, Viton, Ceramic	400 psi	Bronze	180 F	180 F	3/4 FNPT	Shuttle	-	€573.63
C	FS-400 26600	Bronze, Delrin, SS, Viton, Ceramic	400 psi	Bronze	180 F	180 F	3/4 FNPT	Shuttle	-	€537.74
C	FS-400 26602	Bronze, Delrin, SS, Viton, Ceramic	400 psi	Bronze	180 F	180 F	3/4 FNPT	Shuttle	-	€536.72
D	FS-200 26616	Bronze, PTFE, SS, Viton, Ceramic	400 psi	Bronze	200 F	200 F	1 FNPT	Shuttle	-	€567.46
D	FS-200 26615	Bronze, PTFE, SS, Viton, Ceramic	400 psi	Bronze	200 F	200 F	1 FNPT	Shuttle	-	€535.47
D	FS-200 26838	Bronze, PTFE, SS, Viton, Ceramic	400 psi	Bronze	200 F	200 F	1 FNPT	Shuttle	-	€522.05
A	RFS 155485	Polypropylene, Ceramic, PPS Composite, Polysulfone, Buna N	100 psi	Polypropylene	150 F	180 F	1/2 FNPT	Rotor	24 VDC	€534.24
A	RFS 155425	Polypropylene, Ceramic, PPS Composite, Polysulfone, Buna N	100 psi	Polypropylene	150 F	180 F	1/4 FNPT	Rotor	24 VDC	€503.04
E	FS-550 29608	SS, Ceramic, PTFE	2000 psi	Stainless Steel	300 F	300 F	1 MNPT	Paddle	-	€800.52
F	FS-10798 25364	SS, Viton, Epoxy	1000 psi	Stainless Steel	300 F	300 F	1/2 FNPT	Piston	-	€1,806.72

GEMS SENSORS -

FS-380 Series Flow Switch

Style	Model	Body Material	Contact Rating	Flow Rate	Material	Max. Ambient Temp.	Max. Fluid Temp.	Max. Pressure	Price
A	FS-380 178353	Brass	20VA	2 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€295.22
A	FS-380 168432	Brass	20VA	0.25 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€290.52
A	FS-380 168434	Brass	20VA	1 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€284.05
A	FS-380 168435	Brass	20VA	1.5 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€284.05
A	FS-380 168433	Brass	20VA	0.5 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€276.74
A	FS-380 181130	Brass	20VA	0.15 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€277.03
B	FS-380P 197082	Polypropylene	10VA	0.5 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€127.55
B	FS-380P 209876	Polypropylene	10VA	0.15 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€129.03
B	FS-380P 197081	Polypropylene	10VA	0.25 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€129.03
B	FS-380P 197083	Polypropylene	10VA	1 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€134.33
B	FS-380P 197084	Polypropylene	10VA	1.5 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€131.58
B	FS-380P 197085	Polypropylene	10VA	2 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€135.83
C	FS-380 179993	Stainless Steel	20VA	0.5 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€639.08
C	FS-380 179996	Stainless Steel	20VA	2 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€688.54
C	FS-380 179994	Stainless Steel	20VA	1 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€518.68
C	FS-380 179995	Stainless Steel	20VA	1.5 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€453.51
C	FS-380 193482	Stainless Steel	20VA	0.15 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€678.88
C	FS-380 179992	Stainless Steel	20VA	0.25 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€685.09

GEMS SENSORS -

FS-4 Series Flow Switch

Style	Model	Flow Rate	Price
A	FS-4 122352	0.1 gpm	€241.11
A	FS-4 122354	0.5 gpm	€262.49
A	FS-4 122353	0.25 gpm	€255.37
A	FS-4 122355	0.75 gpm	€243.89
A	FS-4 122356	1 gpm	€248.64
A	FS-4 122357	1.5 gpm	€166.97

GEMS SENSORS -

FS-926 Series Flow Switch

Style	Model	Body Material	Flow Rate	Material	Max. Fluid Temp.	Price
A	FS-926 26939	Brass	100 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€588.14
A	FS-926 26941	Brass	150 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€616.01
A	FS-926 26938	Brass	50 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€604.68
A	FS-926 26943	Brass	250 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€443.37
A	FS-926 26942	Brass	200 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€588.14
A	FS-926 26944	Brass	300 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€443.37
A	FS-926 26952	Stainless Steel	100 cc/min	SS, Viton, Epoxy	300 F	€705.06
A	FS-926 26953	Stainless Steel	150 cc/min	SS, Viton, Epoxy	300 F	€710.04
A	FS-926 26956	Stainless Steel	300 cc/min	SS, Viton, Epoxy	300 F	€988.47
A	FS-926 26951	Stainless Steel	50 cc/min	SS, Viton, Epoxy	300 F	€986.30
A	FS-926 26954	Stainless Steel	200 cc/min	SS, Viton, Epoxy	300 F	€710.04
A	FS-926 26955	Stainless Steel	250 cc/min	SS, Viton, Epoxy	300 F	€710.04

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GEMS SENSORS Flow Switches
Stainless-steel, brass, bronze, polypropylene and Ryton flow switches designed to control the flow of liquids, gases or steam. Feature a maximum fluid temperature of 300 degrees F, and can withstand a maximum pressure of 2000 psi

FS-150Series Flow Switch

Air Flow Switch Piston Spdt 20va

FS-500 Series Flow Switch

FS-927 Series Flow Switch

Flow Switch 20 Cm/sec

Flow Switch 40 Cm/sec

Flow Switch 60 Cm/sec

Liquid Flow Switch

FS-380 Series Flow Switch

FS-4 Series Flow Switch

FS-926 Series Flow Switch

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GEMS SENSORS Flow Switches Stainless-steel, brass, bronze, polypropylene and Ryton flow switches designed to control the flow of liquids, gases or steam. Feature a maximum fluid temperature of 300 degrees F, and can withstand a maximum pressure of 2000 psi

Frequently Asked Questions

How does the flow switch work?

What factors should be considered while selecting Gems Sensors flow switch?

Explore More

GEMS SENSORS Flow Switches
Stainless-steel, brass, bronze, polypropylene and Ryton flow switches designed to control the flow of liquids, gases or steam. Feature a maximum fluid temperature of 300 degrees F, and can withstand a maximum pressure of 2000 psi