Flow Switches

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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.

GEMS SENSORS -

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

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

Style	Model	Contact Rating	Max. Ambient Temp.	Max. HP	Switch Type	Price (inc. GST)
A	IFSWSBF-1	10A at 125/250	151 Degrees	1/3	SPDT	SGD 522.46
B	IFSWSBR-1	10A at 125/250 VAC	151 Degrees	1/3	SPDT	SGD 593.70
C	IFSW2BR-1	15A at 125/250 VAC	176 Degrees	1/8 to 1/4	(2) SPDT	SGD 610.16
D	IFS01BF-1	15A at 125/250 VAC	176 Degrees	1/8 to 1/4	SPDT	SGD 416.22
E	IFS02BF-1	15A at 125/250 VAC	176 Degrees	1/8 to 1/4	(2) SPDT	SGD 704.58
F	IFSW2BF-1	15A at 125/250 VAC	176 Degrees	1/8 to 1/4	(2) SPDT	SGD 802.53
G	IFS01BR-1	15A at 125/250 VAC	176 Degrees	1/8 to 1/4	SPDT	SGD 576.73
H	IFSH1BR-1	22A at 125/250 VAC	176 Degrees	1/2 to 1	SPDT	SGD 525.81
I	IFSH1BF-1	22A at 125/250 VAC	176 Degrees	1/2 to 1	SPDT	SGD 487.32
J	IFSH2BF-1	22A at 125/250 VAC	176 Degrees	1/2 to 1	(2) SPDT	SGD 574.63

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

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

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

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

Series FS6 Switch Liquid Flow
McDonnell & Miller FS6 liquid flow switches are designed to monitor the flow of liquids, such as water or oil, in pipes and systems. These liquid flow switches are highly sensitive and used in cooling systems, booster pumps, water treatment systems and compressors. They have a sealed compartment that protects the switch from liquids and a sensitivity adjustment screw to prevent false tripping of the flow switch. These liquid flow switches serve as a crucial safeguard, preventing damage and potential hazards caused by insufficient or excess liquid flow. They can be operated at temperatures ranging from 32 to 225 degrees F and can withstand pressures up to 100 psi. These liquid flow switches are integrated with an SPDT switch for monitoring the direction of liquid flow.

Style	Model	Connection Size	Type	Wetted Materials	Price (inc. GST)
A	FS6-1	1 FNPT	7.4 Amps, High Sensitivity Switch	Brass, S/S, Buna N, Viton, PTFE	SGD 1472.04
B	FS6-W-1	1 FNPT	High Sensitivity Switch	Brass, S/S, Buna N, Viton, PTFE	SGD 1685.63
C	FS6	1" / 3/4" NPT	1/3 HP, General Purpose, Electrically Operated	Brass, EPDM	-	RFQ
A	FS6-3/4	3/4 FNPT	Heavy-duty, High Sensitivity Switch	Brass, S/S, Buna N, Viton, PTFE	SGD 1488.38
A	FS6-W-3/4	3/4 FNPT	High Sensitivity Switch	Brass, S/S, Buna N, Viton, PTFE	SGD 1681.01

MCDONNELL & MILLER -

Style	Model	Max. Ambient Temp.	Price (inc. GST)
A	AF3	275 F	SGD 701.52	RFQ
A	AFE-1	275 F	SGD 3571.45	RFQ
A	AF2	300 F	-	RFQ

Style	Model	Connection Size	Item	Max. Fluid Temp.	Type	Price (inc. GST)
A	FS5-1	1 FNPT	Flow Switch	250 F	1/3 HP, General Purpose, Electrically Operated	SGD 977.40
B	FS5	1" NPT	-	225 F	1/3 HP, General Purpose, Electrically Operated	-	RFQ
A	FS5-3/4	3/4 FNPT	Liquid Flow Switch	250 F	General Purpose Switch	SGD 905.00

Series FS25 General Purpose Flow Switch

Style	Model	Price (inc. GST)
A	FS251	SGD 566.79
B	FS254	SGD 829.56

MCDONNELL & MILLER -

Style	Model	Item	Max. Pressure	Type	Wetted Materials	Price (inc. GST)
A	FS7-4S	Dual Head Drench Hose	1000 psi	Industrial/Heavy-duty	S/S, PTFE	SGD 2593.32
B	FS7-4W	Flow Switch	300 psi	Industrial/Heavy-duty Switch	Brass, S/S, Bronze, PTFE	SGD 1884.18
C	FS7-4SW	Flow Switch	1000 psi	Industrial/Heavy-duty Switch	S/S, PTFE	SGD 3121.56
D	FS7-4E	Flow Switch	300 psi	Industrial/Heavy-duty Switch	Brass, S/S, Bronze, PTFE	SGD 2276.33

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

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

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

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

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

JOHNSON CONTROLS -

Style	Model	Type	Connection Size	Contact Rating	Voltage	Flow Rate	Max. Ambient Temp.	Max. Fluid Temp.	Max. HP	Price (inc. GST)
A	F261KEH-V01C	Low Flow	1/2 FNPT x 1/2 FNPT	16A @ 120 VAC - Full Load	24V-230V	0.6 gpm to 17 gpm	140	250	1	SGD 551.69
B	F261KFH-V01C	Low Flow	3/4 FNPT x 3/4 FNPT	16A @ 120 VAC - Full Load	24V-230V	0.6 gpm to 17 gpm	140	250	1	SGD 548.66
A	F261KFH-V02C	Low Flow	3/4 FNPT x 3/4 FNPT	16A @ 120 VAC - Full Load	24V-230V	0.6 gpm to 17 gpm	140	250	1	SGD 567.58
A	F261MEH-V01C	Low Flow	1/2 FNPT x 1/2 FNPT	16A @ 120 VAC - Full Load	24V-230V	0.6 gpm to 17 gpm	140	250	1	SGD 766.82
A	F261MFH-V01C	Low Flow	3/4 FNPT x 3/4 FNPT	16A @ 120 VAC - Full Load	24V-230V	0.6 gpm to 17 gpm	140	250	1	SGD 847.79
C	F261MAH-V01C	Standard Flow	1 MNPT	16A @ 120 VAC - Full Load	24V-230V	2.5 gpm to 760 gpm	140	250	1	SGD 655.45
A	F261KAH-V01C	Standard Flow	1 MNPT	16A @ 120 VAC - Full Load	24V-230V	2.5 gpm to 760 gpm	140 Degrees	250 Degrees	1	SGD 515.38
A	F261MAL-V01C	Standard Flow	1"	10A @ 120V AC/360VA @ 120V AC Pilot Duty	4-120V	2.5 gpm to 760 gpm	140° F	250° F	1 hp	SGD 776.12

Style	Model	Price (inc. GST)
A	FS4-3DS	SGD 2308.35	RFQ
A	FS4-3S	SGD 1608.76	RFQ
B	FS4-3RP-T	SGD 826.06	RFQ
C	FS4-3T3-3/4	SGD 1041.90	RFQ
D	FS5-D-3/4	SGD 1337.45	RFQ
E	FS4-3D	SGD 993.44	RFQ
F	FS7-4SE	SGD 3436.46	RFQ
G	FS7-4D	SGD 1898.84	RFQ
H	FS4-3T1-3/4	SGD 1128.66	RFQ
I	FS8-WJ	SGD 742.75	RFQ
J	FS4-3T3-1	SGD 1227.60	RFQ

Style	Model	Tee Connection Size	Body Material	Conduit Connection Type	Tee Material	Temp. Range	Wetted Materials	Connection Size	Grade	Price (inc. GST)
A	V4-2-D-U	-	Brass	-	-	-4° to 275° F	-	1 1/2"	-	SGD 1457.52	RFQ
A	V4-SS-2-U	-	Stainless Steel	-	-	-4° to 275° F	-	1 1/2"	Grade 316	SGD 1856.61	RFQ
B	V7-WBS-30N	-	Brass, Die Cast Aluminum	NPSM	-	-40° to 250° F	Stainless Steel, Brass, Ceramic	1"	Grade 301, 302	SGD 302.94	RFQ
C	V8-WP	-	-	MNPT	-	-	Polyphenylene Sulfide, Stainless Steel, Ceramic	1"	-	SGD 376.91	RFQ
D	V8	-	-	MNPT	-	-	Polyphenylene Sulfide, Stainless Steel, Ceramic	1"	-	SGD 275.97	RFQ
A	V4-SS-2-D-U	-	Stainless Steel	-	-	-4° to 275° F	-	1 1/2"	Grade 316	SGD 2030.13	RFQ
E	V10SS	-	Stainless Steel	-	-	-	-	1/2"	-	SGD 323.08	RFQ
A	V4-2-U	-	Brass	-	-	-4° to 275° F	-	1 1/2"	-	SGD 1274.85	RFQ
F	V6EPB-B-S-5-MI	1 1/2"	Brass	-	Iron	-	-	-	-	SGD 1015.07	RFQ
F	V6EPS-S-D-5-S	1 1/2"	Stainless Steel	-	Stainless Steel	-	-	-	-	SGD 2004.09	RFQ
F	V6EPB-B-D-5-B	1 1/2"	Brass	-	Brass	-	-	-	-	SGD 1124.11	RFQ
F	V6EPS-S-S-5-S	1 1/2"	Stainless Steel	-	Stainless Steel	-	-	-	-	SGD 1789.80	RFQ
F	V6EPB-B-S-5-B	1 1/2"	Brass	-	Brass	-	-	-	-	SGD 979.68	RFQ
F	V6EPB-B-D-5-MI	1 1/2"	Brass	-	Iron	-	-	-	-	SGD 1164.72	RFQ
F	V6EPB-B-S-4-MI	1 1/4"	Brass	-	Iron	-	-	-	-	SGD 865.39	RFQ
F	V6EPS-S-S-4-S	1 1/4"	Stainless Steel	-	Stainless Steel	-	-	-	-	SGD 1491.98	RFQ
F	V6EPS-S-D-4-S	1 1/4"	Stainless Steel	-	Stainless Steel	-	-	-	-	SGD 1782.85	RFQ
F	V6EPB-B-D-4-B	1 1/4"	Brass	-	Brass	-	-	-	-	SGD 995.31	RFQ
F	V6EPB-B-D-4-MI	1 1/4"	Brass	-	Iron	-	-	-	-	SGD 1015.07	RFQ
F	V6EPB-B-S-4-B	1 1/4"	Brass	-	Brass	-	-	-	-	SGD 848.56	RFQ
F	V6EPB-B-S-3-B	1"	Brass	-	Brass	-	-	-	-	SGD 752.87	RFQ
F	V6EPS-S-D-3-S	1"	Stainless Steel	-	Stainless Steel	-	-	-	-	SGD 1379.44	RFQ
F	V6EPB-B-D-3-B	1"	Brass	-	Brass	-	-	-	-	SGD 879.21	RFQ
F	V6EPB-B-S-3-MI	1"	Brass	-	Iron	-	-	-	-	SGD 824.53	RFQ
F	V6EPB-B-D-3-MI	1"	Brass	-	Iron	-	-	-	-	SGD 910.96	RFQ

Style	Model	Price (inc. GST)
A	FSD1-AP-26H	SGD 512.18
B	FSD75-AP-6H	SGD 424.94

Flow Switches

Flow switches are primarily designed to monitor the air, steam or liquid flow and send signals to the pump for automatic ON / OFF switching with the rise and fall of water level; ideal for regulating water cooling equipment and water treatment or hydronic heating systems. Raptor Supplies offers a wide range of these liquid flow switches from brands like Bradley, Dwyer Instruments, Mcdonnell & Miller, Dayton, Johnson Controls, Gems Sensors and Taco. Gems Sensors flow switches uses 100-micron filtration technology and are less susceptible to clogging than other high-pressure inline flow switches. These units come equipped with one-piece magnetic composite piston which actuates the sealed reed switch when displaced by the pressure difference in fluid flow, thereby activating remote alarms or indicators. They are available in brass, polypropylene and stainless steel construction with a maximum pressure rating and flow rate of 1500 psi and 2 GPM, respectively. Taco industrial flow switches feature flow sensitivity adjustment mechanism for setting a wide adjustment range to start or stop an electronically operated device when flow / no-flow condition occurs. These low-flow switches come with a highly malleable EPDM seal providing anti-hardening, cracking and leakage properties and improving the performance in high-pressure applications such as chillers, boilers, heating systems and water systems. They are available in NEMA 1 and NEMA 4 rated enclosures providing protection against the ingress of foreign contaminants and are ideal for use with 1 - 8 inch (outer diameter) pipe sizes.

Working Mechanism

The flow switch contains a sensor element positioned within the fluid's flow route.
When fluid flows through the sensor element, it exerts a force or causes a pressure differential.
The flow switch has an adjustable actuation threshold, which is the predetermined flow rate or pressure level that must be exceeded for the switch to activate.
The force or pressure on the sensor element causes a mechanical or electrical response within the flow switch when the fluid flow reaches or exceeds the actuation threshold.
When a flow switch is activated, it produces an output signal that can be used to initiate control functions, such as activating an alarm, opening or closing valves or commencing a shutdown sequence.

Categories

Brands

Flow Switches

FS-500 Series Flow Switch

FS-926 Series Flow Switch

Flow Switch 3.5 - 600 Spdt

FS-927 Series Flow Switch

FS-150Series Flow Switch

FS-380 Series Flow Switch

FS-4 Series Flow Switch

Series AF Air Flow Switch

Series FS5 Switch Liquid Flow

Series FS25 General Purpose Flow Switch

Series FS7 Switch Liquid Flow

Flow Switch 20 Cm/sec

Flow Switch 40 Cm/sec

Flow Switch 60 Cm/sec

Liquid Flow Switch

Air Flow Switch Piston Spdt 20va

Flow Switches

Flow Switches

Liquid Flow Switches

FSD Series Flow Switches

Flow Switches

Working Mechanism

Frequently Asked Questions

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Categories

Brands

Flow Switches

Flow Switches

Working Mechanism

Frequently Asked Questions

How can I maintain the accuracy of my flow switch over time?

What is the difference between a flow switch and a pressure switch?

How do I select the right flow switch for my application?

Do these flow switches require regular maintenance?

Can I use these flow switches for both liquids and gases?

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