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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Gems Sensors flow switches monitor the flow rate and pressure of liquids, air or other gaseous media through a duct, system or loop.

GEMS SENSORS -

Liquid Flow Switch

Style	Model	Body Material	Connection Size	Contact Rating	Flow Rate	Material	Max. Ambient Temp.	Max. Fluid Temp.	Max. Pressure	Price (ex. VAT)
A	FS-550 29609	Brass	1 MNPT	20VA	15 to 48 gpm	Brass, SS, Ceramic, PTFE	300 F	300 F	2000 psi	€433.94
B	RFS 156265	Brass	1/4 FNPT	35mA/95mA	0.1 to 5 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	150 F	212 F	200 psi	€553.25
B	RFS 156268	Brass	1/2 FNPT	35mA/95mA	1.5 to 20 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	150 F	212 F	200 psi	€538.40
B	RFS 180395	Brass	3/4 FNPT	35mA/95mA	5 to 30 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	150 F	212 F	200 psi	€523.15
B	RFS 181688	Brass	1 FNPT	35mA/95mA	8 to 60 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	150 F	212 F	200 psi	€559.42
C	FS-400 26600	Bronze	3/4 FNPT	20VA	0.75 to 4 gpm	Bronze, Delrin, SS, Viton, Ceramic	180 F	180 F	400 psi	€411.33
C	FS-400 26601	Bronze	3/4 FNPT	20VA	2 to 8 gpm	Bronze, Delrin, SS, Viton, Ceramic	180 F	180 F	400 psi	€425.69
C	FS-400 26602	Bronze	3/4 FNPT	20VA	7 to 14 gpm	Bronze, Delrin, SS, Viton, Ceramic	180 F	180 F	400 psi	€404.04
D	FS-200 26615	Bronze	1 FNPT	20VA	1 to 6 gpm	Bronze, PTFE, SS, Viton, Ceramic	200 F	200 F	400 psi	€415.71
D	FS-200 26616	Bronze	1 FNPT	20VA	5 to 15 gpm	Bronze, PTFE, SS, Viton, Ceramic	200 F	200 F	400 psi	€437.98
D	FS-200 26838	Bronze	1 FNPT	20VA	2 to 8 gpm	Bronze, PTFE, SS, Viton, Ceramic	200 F	200 F	400 psi	€415.71
B	RFS 155425	Polypropylene	1/4 FNPT	35mA/95mA	0.1 to 5 gpm	Polypropylene, Ceramic, PPS Composite, Polysulfone, Buna N	150 F	180 F	100 psi	€407.91
B	RFS 155485	Polypropylene	1/2 FNPT	35mA/95mA	1.5 to 20 gpm	Polypropylene, Ceramic, PPS Composite, Polysulfone, Buna N	150 F	180 F	100 psi	€408.96
E	FS-550 29608	Stainless Steel	1 MNPT	20VA	15 to 48 gpm	SS, Ceramic, PTFE	300 F	300 F	2000 psi	€664.14
F	FS-10798 25364	Stainless Steel	1/2 FNPT	20VA	0.5 to 20 gpm	SS, Viton, Epoxy	300 F	300 F	1000 psi	€1,303.53

GEMS SENSORS -

Air Flow Switch Piston Spdt 20va

Style	Model	Body Material	Material	Price (ex. VAT)
A	FS-10798 25365	Brass	Brass, SS, Viton, Epoxy	€808.23
A	FS-10798 25366	Stainless Steel	SS, Viton, Epoxy	€1,299.07

GEMS SENSORS -

Flow Switch 20 Cm/sec

Style	Model	Connection Size	Price (ex. VAT)
A	230500-3-20	1 FNPT	€666.01
A	230500-4-20	1-1/2 FNPT	€666.01
A	230500-1-20	1/2 FNPT	€647.01
A	230500-2-20	3/4 FNPT	€666.01

GEMS SENSORS -

Flow Switch 40 Cm/sec

Style	Model	Connection Size	Flow Rate	Price (ex. VAT)
A	230500-3-5	1 FNPT	5 cm/sec	€697.97
A	230500-3-40	1 FNPT	40 cm/sec	€666.01
A	230500-4-5	1-1/2 FNPT	5 cm/sec	€697.97
A	230500-4-40	1-1/2 FNPT	40 cm/sec	€765.85
A	230500-1-40	1/2 FNPT	40 cm/sec	-	RFQ
A	230500-2-5	3/4 FNPT	5 cm/sec	€666.01
A	230500-2-40	3/4 FNPT	40 cm/sec	€634.56

GEMS SENSORS -

Flow Switch 60 Cm/sec

Style	Model	Connection Size	Price (ex. VAT)
A	230500-3-60	1 FNPT	€666.01
A	230500-1-60	1/2 FNPT	€666.01
A	230500-2-60	3/4 FNPT	€697.97

GEMS SENSORS -

FS-150Series Flow Switch

Style	Model	Flow Rate	Switch Type	Price (ex. VAT)
A	FS-150 NO 0.5GPM	0.5 gpm	SPST, Normally Open @ No Flow	€183.34
A	FS-150 NC 0.5GPM	0.5 gpm	SPST, Normally Closed @ No Flow	€183.34
A	FS-150 NO 1.0GPM	1 gpm	SPST, Normally Open @ No Flow	€176.86
A	FS-150 NC 1.0GPM	1 gpm	SPST, Normally Closed @ No Flow	€169.76
A	FS-150 NO 2.0GPM	2 gpm	SPST, Normally Open @ No Flow	€174.02
A	FS-150 NO 3.0GPM	3 gpm	SPST, Normally Open @ No Flow	€183.34

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 (ex. VAT)
A	FS-380 168433	Brass	20VA	0.5 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€206.62
A	FS-380 168432	Brass	20VA	0.25 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€209.62
A	FS-380 178353	Brass	20VA	2 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€224.12
A	FS-380 168435	Brass	20VA	1.5 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€224.12
A	FS-380 168434	Brass	20VA	1 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€212.25
A	FS-380 181130	Brass	20VA	0.15 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	€224.12
B	FS-380P 197081	Polypropylene	10VA	0.25 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€104.47
B	FS-380P 209876	Polypropylene	10VA	0.15 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€104.47
B	FS-380P 197085	Polypropylene	10VA	2 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€111.08
B	FS-380P 197084	Polypropylene	10VA	1.5 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€104.47
B	FS-380P 197083	Polypropylene	10VA	1 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€111.08
B	FS-380P 197082	Polypropylene	10VA	0.5 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	€104.47
C	FS-380 193482	Stainless Steel	20VA	0.15 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€548.70
C	FS-380 179992	Stainless Steel	20VA	0.25 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€568.37
C	FS-380 179993	Stainless Steel	20VA	0.5 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€489.22
C	FS-380 179995	Stainless Steel	20VA	1.5 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€518.32
C	FS-380 179996	Stainless Steel	20VA	2 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	€543.21

GEMS SENSORS -

FS-4 Series Flow Switch

Style	Model	Flow Rate	Price (ex. VAT)
A	FS-4 122352	0.1 gpm	€196.17
A	FS-4 122354	0.5 gpm	€202.14
A	FS-4 122353	0.25 gpm	€211.87
A	FS-4 122355	0.75 gpm	€180.21
A	FS-4 122356	1 gpm	€188.07

GEMS SENSORS -

FS-500 Series Flow Switch

Style	Model	Flow Rate	Price (ex. VAT)
A	FS-500 170232	0.5 gpm	€148.73
A	FS-500 170231	0.25 gpm	€664.14
A	FS-500 170233	1 gpm	€146.05
A	FS-500 175117	2 gpm	€146.19
A	FS-500 170234	2.5 gpm	€148.73
A	FS-500 170235	5 gpm	€148.73

GEMS SENSORS -

FS-926 Series Flow Switch

Style	Model	Body Material	Flow Rate	Material	Max. Fluid Temp.	Price (ex. VAT)
A	FS-926 26938	Brass	50 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€488.94
A	FS-926 26939	Brass	100 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€464.03
A	FS-926 26941	Brass	150 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€488.94
A	FS-926 26942	Brass	200 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	€464.03
A	FS-926 26951	Stainless Steel	50 cc/min	SS, Viton, Epoxy	300 F	€794.65
A	FS-926 26952	Stainless Steel	100 cc/min	SS, Viton, Epoxy	300 F	€794.65
A	FS-926 26956	Stainless Steel	300 cc/min	SS, Viton, Epoxy	300 F	€758.25

GEMS SENSORS -

FS-927 Series Flow Switch

Style	Model	Flow Rate	Switch Type	Price (ex. VAT)
A	FS-927 70820	0.1 gpm	SPST, NO	€195.26
A	FS-927 70826	0.1 gpm	SPST, NC	€187.28
A	FS-927 70822	0.5 gpm	SPST, NO	€205.76
A	FS-927 70828	0.5 gpm	SPST, NC	€165.97
A	FS-927 70821	0.25 gpm	SPST, NO	€196.40
A	FS-927 70827	0.25 gpm	SPST, NC	€186.31
A	FS-927 70823	0.75 gpm	SPST, NO	€179.46
A	FS-927 70829	0.75 gpm	SPST, NC	€186.31
A	FS-927 70830	1 gpm	SPST, NC	€195.26
A	FS-927 70825	1.5 gpm	SPST, NO	€196.40
A	FS-927 70831	1.5 gpm	SPST, NC	€158.37

Features

Gems Sensors SPDT 20VA air flow switches feature brass / stainless steel construction for structural rigidity and resisting corrosion on exposed surfaces. These Gems flow switches can be operated at fluid temperatures ranging from -20 to 300 degrees F. They have an SPDT switch for three-way switching and have operating pressures up to 1000 psi.
The brand's flow switches feature 303 / 316 stainless steel construction for structural rigidity and resisting corrosion on exposed surfaces. These Gems flow switches can be operated at temperatures up to -14 to 140 degrees F. They are compatible with liquid or gases and have a flow rate of 5 / 40 cm/sec.

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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

Liquid Flow Switch

Air Flow Switch Piston Spdt 20va

Flow Switch 20 Cm/sec

Flow Switch 40 Cm/sec

Flow Switch 60 Cm/sec

FS-150Series Flow Switch

FS-380 Series Flow Switch

FS-4 Series Flow Switch

FS-500 Series Flow Switch

FS-926 Series Flow Switch

FS-927 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

Features

Frequently Asked Questions

How does the flow switch work?

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

We are here to help!

Looking for a part not listed here?

Popular Search Queries

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