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 -

FS-500 Series Flow Switch

Style	Model	Flow Rate	Price (inc. GST)
A	FS-500 170232	0.5 gpm	SGD 264.09
A	FS-500 170231	0.25 gpm	SGD 1296.17
A	FS-500 170233	1 gpm	SGD 274.64
A	FS-500 175117	2 gpm	SGD 276.86
A	FS-500 170234	2.5 gpm	SGD 272.08
A	FS-500 170235	5 gpm	SGD 262.22

GEMS SENSORS -

FS-926 Series Flow Switch

Style	Model	Body Material	Flow Rate	Material	Max. Fluid Temp.	Price (inc. GST)
A	FS-926 26938	Brass	50 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	SGD 864.81
A	FS-926 26939	Brass	100 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	SGD 827.92
A	FS-926 26941	Brass	150 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	SGD 900.68
A	FS-926 26942	Brass	200 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	SGD 853.53
A	FS-926 26943	Brass	250 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	SGD 653.57
A	FS-926 26944	Brass	300 cc/min	Brass, Polysulfone, SS, Viton, Epoxy	225 F	SGD 653.57
A	FS-926 26955	Stainless Steel	250 cc/min	SS, Viton, Epoxy	300 F	SGD 1046.67
A	FS-926 26956	Stainless Steel	300 cc/min	SS, Viton, Epoxy	300 F	SGD 1364.19
A	FS-926 26951	Stainless Steel	50 cc/min	SS, Viton, Epoxy	300 F	SGD 1410.61
A	FS-926 26952	Stainless Steel	100 cc/min	SS, Viton, Epoxy	300 F	SGD 1406.25
A	FS-926 26953	Stainless Steel	150 cc/min	SS, Viton, Epoxy	300 F	SGD 1046.67
A	FS-926 26954	Stainless Steel	200 cc/min	SS, Viton, Epoxy	300 F	SGD 1046.67

GEMS SENSORS -

FS-927 Series Flow Switch

Style	Model	Flow Rate	Switch Type	Price (inc. GST)
A	FS-927 70820	0.1 gpm	SPST, NO	SGD 354.62
A	FS-927 70826	0.1 gpm	SPST, NC	SGD 364.31
A	FS-927 70822	0.5 gpm	SPST, NO	SGD 372.46
A	FS-927 70828	0.5 gpm	SPST, NC	SGD 364.31
A	FS-927 70821	0.25 gpm	SPST, NO	SGD 369.50
A	FS-927 70827	0.25 gpm	SPST, NC	SGD 367.78
A	FS-927 70823	0.75 gpm	SPST, NO	SGD 367.56
A	FS-927 70829	0.75 gpm	SPST, NC	SGD 369.58
A	FS-927 70824	1 gpm	SPST, NO	SGD 368.83
A	FS-927 70830	1 gpm	SPST, NC	SGD 366.27
A	FS-927 70825	1.5 gpm	SPST, NO	SGD 383.89
A	FS-927 70831	1.5 gpm	SPST, NC	SGD 369.25

GEMS SENSORS -

FS-150Series Flow Switch

Style	Model	Flow Rate	Switch Type	Price (inc. GST)
A	FS-150 NO 0.5GPM	0.5 gpm	SPST, Normally Open @ No Flow	SGD 334.91
A	FS-150 NC 0.5GPM	0.5 gpm	SPST, Normally Closed @ No Flow	SGD 330.26
A	FS-150 NO 1.0GPM	1 gpm	SPST, Normally Open @ No Flow	SGD 343.94
A	FS-150 NC 1.0GPM	1 gpm	SPST, Normally Closed @ No Flow	SGD 318.46
A	FS-150 NO 2.0GPM	2 gpm	SPST, Normally Open @ No Flow	SGD 320.28
A	FS-150 NO 3.0GPM	3 gpm	SPST, Normally Open @ No Flow	SGD 340.15

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 (inc. GST)
A	FS-380 168433	Brass	20VA	0.5 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	SGD 397.98
A	FS-380 168435	Brass	20VA	1.5 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	SGD 418.23
A	FS-380 178353	Brass	20VA	2 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	SGD 441.01
A	FS-380 168434	Brass	20VA	1 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	SGD 413.96
A	FS-380 168432	Brass	20VA	0.25 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	SGD 423.87
A	FS-380 181130	Brass	20VA	0.15 gpm	Brass, PPS Composite, Epoxy, SS, Fluorocarbon	275 F	275 F	1500 psi	SGD 401.38
B	FS-380P 197081	Polypropylene	10VA	0.25 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	SGD 192.04
B	FS-380P 197085	Polypropylene	10VA	2 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	SGD 199.07
B	FS-380P 197084	Polypropylene	10VA	1.5 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	SGD 192.04
B	FS-380P 197083	Polypropylene	10VA	1 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	SGD 199.34
B	FS-380P 197082	Polypropylene	10VA	0.5 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	SGD 187.84
B	FS-380P 209876	Polypropylene	10VA	0.15 gpm	Polypropylene, PPS Composite, SS, Fluorocarbon	212 F	212 F	125 psi	SGD 188.70
C	FS-380 179995	Stainless Steel	20VA	1.5 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	SGD 1025.63
C	FS-380 179993	Stainless Steel	20VA	0.5 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	SGD 772.50
C	FS-380 193482	Stainless Steel	20VA	0.15 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	SGD 970.92
C	FS-380 179992	Stainless Steel	20VA	0.25 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	SGD 970.92
C	FS-380 179994	Stainless Steel	20VA	1 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	SGD 764.58
C	FS-380 179996	Stainless Steel	20VA	2 gpm	SS, PPS Composite, Epoxy, Fluorocarbon	275 F	275 F	1500 psi	SGD 958.49

GEMS SENSORS -

FS-4 Series Flow Switch

Style	Model	Flow Rate	Price (inc. GST)
A	FS-4 122352	0.1 gpm	SGD 344.83
A	FS-4 122354	0.5 gpm	SGD 362.26
A	FS-4 122353	0.25 gpm	SGD 358.18
A	FS-4 122355	0.75 gpm	SGD 336.59
A	FS-4 122356	1 gpm	SGD 370.89
A	FS-4 122357	1.5 gpm	SGD 246.13

GEMS SENSORS -

Flow Switch 20 Cm/sec

Style	Model	Connection Size	Price (inc. GST)
A	20X872	1 FNPT	SGD 1246.91
A	20X876	1-1/2 FNPT	SGD 1209.57
A	20X864	1/2 FNPT	SGD 1269.66
A	20X868	3/4 FNPT	SGD 1209.57

GEMS SENSORS -

Flow Switch 40 Cm/sec

Style	Model	Connection Size	Flow Rate	Price (inc. GST)
A	20X871	1 FNPT	5 cm/sec	SGD 1209.57
A	20X873	1 FNPT	40 cm/sec	SGD 1209.57
A	20X875	1-1/2 FNPT	5 cm/sec	SGD 1246.91
A	20X877	1-1/2 FNPT	40 cm/sec	SGD 1209.57
A	20X863	1/2 FNPT	5 cm/sec	SGD 980.91
A	20X865	1/2 FNPT	40 cm/sec	SGD 1209.57
A	20X867	3/4 FNPT	5 cm/sec	SGD 1246.91
A	20X869	3/4 FNPT	40 cm/sec	SGD 1127.49

GEMS SENSORS -

Flow Switch 60 Cm/sec

Style	Model	Connection Size	Price (inc. GST)
A	20X874	1 FNPT	SGD 1209.57
A	20X878	1-1/2 FNPT	SGD 969.09
A	20X866	1/2 FNPT	SGD 1209.57
A	20X870	3/4 FNPT	SGD 1246.91

GEMS SENSORS -

Liquid Flow Switch

Style	Model	Max. Pressure	Body Material	Connection Size	Type	Voltage	Contact Rating	Flow Rate	Material	Price (inc. GST)
A	RFS 155485	100 psi	Polypropylene	1/2 FNPT	Rotor	24 VDC	35mA/95mA	1.5 to 20 gpm	Polypropylene, Ceramic, PPS Composite, Polysulfone, Buna N	SGD 793.44
A	RFS 155425	100 psi	Polypropylene	1/4 FNPT	Rotor	24 VDC	35mA/95mA	0.1 to 5 gpm	Polypropylene, Ceramic, PPS Composite, Polysulfone, Buna N	SGD 772.43
A	RFS 156265	200 psi	Brass	1/4 FNPT	Rotor	24 VDC	35mA/95mA	0.1 to 5 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	SGD 961.94
A	RFS 180395	200 psi	Brass	3/4 FNPT	Rotor	24 VDC	35mA/95mA	5 to 30 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	SGD 981.29
A	RFS 156268	200 psi	Brass	1/2 FNPT	Rotor	24 VDC	35mA/95mA	1.5 to 20 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	SGD 973.49
A	RFS 181688	200 psi	Brass	1 FNPT	Rotor	24 VDC	35mA/95mA	8 to 60 gpm	Brass, Ceramic, PPS Composite, Polysulfone, Viton	SGD 1097.25
B	FS-400 26600	400 psi	Bronze	3/4 FNPT	Shuttle	-	20VA	0.75 to 4 gpm	Bronze, Delrin, SS, Viton, Ceramic	SGD 726.36
B	FS-400 26601	400 psi	Bronze	3/4 FNPT	Shuttle	-	20VA	2 to 8 gpm	Bronze, Delrin, SS, Viton, Ceramic	SGD 800.08
B	FS-400 26602	400 psi	Bronze	3/4 FNPT	Shuttle	-	20VA	7 to 14 gpm	Bronze, Delrin, SS, Viton, Ceramic	SGD 783.96
C	FS-200 26615	400 psi	Bronze	1 FNPT	Shuttle	-	20VA	1 to 6 gpm	Bronze, PTFE, SS, Viton, Ceramic	SGD 770.30
C	FS-200 26838	400 psi	Bronze	1 FNPT	Shuttle	-	20VA	2 to 8 gpm	Bronze, PTFE, SS, Viton, Ceramic	SGD 746.62
C	FS-200 26616	400 psi	Bronze	1 FNPT	Shuttle	-	20VA	5 to 15 gpm	Bronze, PTFE, SS, Viton, Ceramic	SGD 814.43
D	FS-10798 25364	1000 psi	Stainless Steel	1/2 FNPT	Piston	-	20VA	0.5 to 20 gpm	SS, Viton, Epoxy	SGD 2583.96
E	FS-550 29609	2000 psi	Brass	1 MNPT	Paddle	24V-240V AC/DC	20VA	15 to 48 gpm	Brass, SS, Ceramic, PTFE	SGD 761.87
F	FS-550 29608	2000 psi	Stainless Steel	1 MNPT	Paddle	-	20VA	15 to 48 gpm	SS, Ceramic, PTFE	SGD 1137.09

GEMS SENSORS -

Air Flow Switch Piston Spdt 20va

Style	Model	Body Material	Material	Price (inc. GST)
A	FS-10798 25365	Brass	Brass, SS, Viton, Epoxy	SGD 1436.86
A	FS-10798 25366	Stainless Steel	SS, Viton, Epoxy	SGD 2245.34

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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Brands

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-500 Series Flow Switch

FS-926 Series Flow Switch

FS-927 Series Flow Switch

FS-150Series Flow Switch

FS-380 Series Flow Switch

FS-4 Series Flow Switch

Flow Switch 20 Cm/sec

Flow Switch 40 Cm/sec

Flow Switch 60 Cm/sec

Liquid Flow Switch

Air Flow Switch Piston Spdt 20va

Features

Frequently Asked Questions

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Categories

Brands

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?

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