Which type of flow meters are most precise?

Coriolis mass flow meters are precise for most liquids but are usually expensive. They have the benefit of not requiring any knowledge about the fluid being carried.

What is the expected life of a flow meter?

In applications like subsea oil / gas production, flow meters usually have a life expectancy of 25 years. Whereas in other applications, a simple disposable device with a one to two year lifespan is acceptable.

What are the points to be considered before choosing any flow meter?

The media being measured is one of the most important criteria while choosing a flow meter. Conductivity, temperature, pressure, and viscosity can affect certain flow meters. How clean or dirty the water is may also impact the type and style of the meter.

Electronic Flowmeters

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Electronic flowmeters measure the volume or mass of liquid, gas or vapour passing through food processing equipment or plumbing lines. These compact and lightweight flowmeters display...Read more

GPI -

01A Series, Digital Fuel Meters

Style	Model	Connection Type	Display Type	Display Units	Flow Range	Housing Material	Max. Pressure	Power Requirement	Type	Price (inc. VAT)
A	01A52LM	BSP Female	LCD	Liter	10 to 100 lpm	Aluminum	300 psi	2 AAA Alkaline Batteries	-	-	RFQ
A	01A12LM	BSPT Female	LCD	Liter	10 to 100 lpm	Aluminum	300 psi	2 AAA Alkaline Batteries	-	-	RFQ
B	01A31LM	FNPT	Standard LCD	Liter	10 to 100 lpm	Aluminum	300 psi	2 AAA Batteries	Turbine	£220.42
C	01A31GM-U	FNPT	-	Liter	3 to 30 gpm	Nylon	150 psi	-	Electronic	£254.53
D	01A31GM	FNPT	Standard LCD	gal.	3 to 30 gpm	Aluminum	300 psi	2 AAA Batteries	Turbine	£216.48

GPI -

OM Series, Medium Capacity Oval Gear Flow Meters

Style	Model	Accuracy	Connection Size	Display Type	Display Units	Flow Range	Housing Material	Price (inc. VAT)
A	OM015A001-826R7G	+/- 0.5%	1/2"	LCD	cu. m, gal., kg, Liter, lb.	1 To 40 lpm	Aluminum	-	RFQ
B	OM015A001-822R5G	+/- 0.5%	1/2"	LCD	gal.	1 To 40 lpm	Aluminum	-	RFQ
C	OM015A511-222	+/- 0.5%	1/2"	-	-	1 To 40 lpm	Aluminum	-	RFQ
D	OM040S003-822R5G	+/- 0.5%	1.5"	LCD	gal.	15 To 250 lpm	316 SS	-	RFQ
E	OM025A001-820M4	+/- 1%	1"	Mechanical	-	2.6 to 40 gpm	Aluminum	-	RFQ

GPI -

OM Series, Small Capacity Oval Gear Flow Meters

Style	Model	Connection Size	Flow Range	Price (inc. VAT)
A	OM006S513-222	1/4"	0.033 To 1.67 lpm	-	RFQ
A	OM004S513-222	1/8"	0.008 To 0.6 lpm	-	RFQ
A	OM008S513-222	3/8"	0.25 To 9.17 lpm	-	RFQ

GPI -

03A Series, Fuel Meters

Style	Model	Flow Range	Connection Size	Connection Type	Flow Material	Fluid Temp. Range	Price (inc. VAT)
A	03A30GM	1 To 11 lpm	1"	FNPT	Fuels, Lubricants, Petroleum Products	14 To 140° F	£611.52
B	03A31GM	11 To 190 lpm	1"	FNPT	Fuels, Lubricants, Petroleum Products	14 To 140° F	-	RFQ

ALEMITE -

Electronic Flowmeter, Flexible Extension

Style	Model	Price (inc. VAT)
A	3645-C3	£1,100.73
A	3641-3	£1,077.46

ALEMITE -

Electronic Flowmeter, Rigid Extension

Style	Model	Price (inc. VAT)
A	3643-3	£1,128.65
A	3644-C3	£1,113.17
A	3640-3	£1,079.76

FLOMEC -

QSE Series Electromagnetic Meters

Style	Model	Output Type	Flow Range	Connection Size	Connection Type	Display Units	Price (inc. VAT)
A	QSE05NPT42XXXA	4 To 20 mA Scaled Pulse	0.63 To 38 lpm	1/2"	MNPT	gal.	-	RFQ
A	QSE20NPT42XXXD	4 To 20 mA Scaled Pulse	9.47 To 568 lpm	2"	MNPT	gal.	-	RFQ
A	QSE15NPT42XXXD	4 To 20 mA Scaled Pulse	5.05 To 303 lpm	1.5"	MNPT	gal.	-	RFQ
B	QSE07NPT42XXXA	4 To 20 mA Scaled Pulse	1.27 To 76 lpm	3/4"	MNPT	gal.	-	RFQ
C	QSE30FAP42XXXB	4 To 20 mA Scaled Pulse	19 To 1136 lpm	3"	Flanged	gal.	-	RFQ
A	QSE10NPT42XXXA	4 To 20 mA Scaled Pulse	2.52 To 151 lpm	1"	MNPT	gal.	-	RFQ
D	QSE15NPTQ9XXXA	Scaled pulse	5.05 To 303 lpm	1.5"	MNPT	gal.	£2,024.73	RFQ
D	QSE07NPTQ9XXXA	Scaled pulse	1.27 To 76 lpm	3/4"	MNPT	gal.	£2,024.73	RFQ
B	QSE05NPTQ9XXXA	Scaled pulse	0.63 To 38 lpm	1/2"	MNPT	gal.	£2,024.73	RFQ
D	QSE10NPTQ9XXXA	Scaled pulse	2.52 To 151 lpm	1"	MNPT	gal.	£2,024.73	RFQ
D	QSE20NPTQ9XXXA	Scaled pulse	9.47 To 568 lpm	2"	MNPT	gal.	£2,024.73	RFQ
C	QSE40FAPQ9XXXC	Scaled pulse	38 To 2271 lpm	4"	Flanged	gal.	-	RFQ

FLOMEC -

G2 Series, Turbine Type Flowmeters

Style	Model	Max. Pressure	Connection Size	Flow Range	Accuracy	Housing Material	Price (inc. VAT)
A	G2P10NQ9GMA	100 psi	1"	5 to 50 gpm	+/- 1%	PVDF	£1,492.58
B	G2A05NQ9GMA	300 psi	1/2"	3.8 To 38 lpm	+/- 1.5%	Aluminum	£1,129.75
C	G2A15NQ9GMB	300 psi	1.5"	10 to 100 gpm	+/-0.75%	Aluminum	£1,545.22
B	G2A10NQ9GMA	300 psi	1"	19 To 190 lpm	+/- 1%	Aluminum	£1,169.59
C	G2A20NQ9GMB	300 psi	2"	76 To 760 lpm	+/-0.75%	Aluminum	£1,926.55
B	G2A07NQ9GMA	300 psi	3/4"	2 to 20 gpm	+/- 1%	Aluminum	£1,153.94
D	G2S20NQ9GMB	1500 psi	2"	76 To 760 lpm	+/-0.75%	316 SS	£2,367.63
D	G2S15NQ9GMB	1500 psi	1.5"	38 To 380 lpm	+/-0.75%	316 SS	£1,826.95
C	G2S10NQ9GMA	1500 psi	1"	19 To 190 lpm	+/- 1%	316 SS	£1,373.06
B	G2S05NQ9GMA	1500 psi	1/2"	3.8 To 38 lpm	+/- 1.5%	316 SS	£1,321.83
B	G2S07NQ9GMA	1500 psi	3/4"	7.6 To 76 lpm	+/- 1%	316 SS	£1,348.87

FLOMEC -

TM Series, Turbine Type Water Meters

Style	Model	Flow Range	Connection Type	Connection Size	Max. Pressure	Fluid Temp. Range	Price (inc. VAT)
A	TM05SQ9GMA	1 to 10 gpm	Spigot	1/2"	225 PSIG	32 to 140° F	£499.42
B	TM05NQ9GMA	1 to 10 gpm	FNPT	1/2"	225 PSIG	32 to 140° F	£412.80
B	TM10NQ9GMA	5 to 50 gpm	FNPT	1"	225 PSIG	32 to 140° F	£554.83
A	TM10SQ9GMA	5 to 50 gpm	Spigot	1"	225 PSIG	32 to 140° F	£638.86
B	TM07NQ9GMA	7.6 To 76 lpm	FNPT	3/4"	225 PSIG	32 to 140° F	£481.50
A	TM07SQ9GMA	7.6 To 76 lpm	Spigot	3/4"	225 PSIG	32 to 140° F	£552.07
B	TM15SQ9GMB	38 To 380 lpm	Spigot	1.5"	225 PSIG	32 to 140° F	£715.70
B	TM15NQ9GMB	38 To 380 lpm	FNPT	1.5"	225 PSIG	32 to 140° F	£643.74
C	TM40SQ9GMD	60 to 600 gpm	Spigot	4"	225 PSIG	32 to 140° F	£1,067.14
B	TM20NQ9GMB	76 To 760 lpm	FNPT	2"	225 PSIG	32 to 140° F	£682.14
B	TM20SQ9GMB	76 To 760 lpm	Spigot	2"	225 PSIG	32 to 140° F	£775.46
D	TM30NQ9GMD	151 To 1514 lpm	FNPT	3"	225 PSIG	32 to 140° F	£1,698.63	RFQ
E	TM30FQ9GME	151 To 1514 lpm	Flanged	3"	225 PSIG	32 to 140° F	£1,698.63	RFQ
E	TM40FQ9GME	227 To 2271 lpm	Flanged	4"	225 PSIG	32 to 140° F	£1,425.50
D	TM40NQ9GME	227 To 2271 lpm	FNPT	4"	225 PSIG	32 to 140° F	£1,329.90

GPI -

01N Series, Water Meters

Style	Model	Flow Range	Connection Type	Display Units	Display Type	Connection Size	Price (inc. VAT)
A	01N31GM	3 to 30 gpm	FNPT	gal.	Standard LCD	1"	£264.19
B	01N31LM	10 to 100 lpm	FNPT	Liter	Standard LCD	1"	£327.26
C	01N12LM	10 to 100 lpm	BSPT Female	Liter	LCD	1"	-	RFQ

GPI -

TM Series, Turbine Type Water Meters
GPI TM Series water meters measure the volume of water that passes through heavy flow water pipes for irrigation, waste water treatment and water supply applications. These water meters are also suitable for measuring water passing through OEM water treatment equipment and feature lightweight yet durable PVC construction for easily connecting to water supply lines. Selected GPI TM Series water meters feature integrated seven segment display for monitoring & displaying various parameters including flow rate and batch & cumulative totals. These water meters can display water flow in liters, gallons and cubic feet. These GPI TM Series water meters have a built in lithium battery that offers up to 5 years of hassle-free usage in industrial environments. These water meters further feature NPT / spigot style fittings for ensuring easy installation depending upon the application requirement. GPI TM Series water meters are available with display & without display options on Raptor Supplies.

Style	Model	Flow Range	Connection Type	Connection Size	Max. Pressure	Fluid Temp. Range	Price (inc. VAT)
A	TM05NP9GMC	3.8 To 38 lpm	FNPT	1/2"	225 psi	32 To 140° F	£1,200.63
B	TM05NPOXXC	3.8 To 38 lpm	FNPT	1/2"	225 psi	32 To 140° F	-	RFQ
C	TM05SP9GMC	3.8 To 38 lpm	Spigot	1/2"	225 psi	32 To 140° F	£1,157.17
B	TM05SPOXXC	3.8 To 38 lpm	Spigot/Slip	1/2"	225 psi	32 To 140° F	-	RFQ
A	TM07NP9GMC	7.6 To 76 lpm	FNPT	3/4"	225 psi	32 To 140° F	£862.09
A	TM07SP9GMC	7.6 To 76 lpm	Spigot	3/4"	225 psi	32 To 140° F	£834.43
B	TM07SPOXXC	7.6 To 76 lpm	Spigot/Slip	3/4"	225 psi	32 To 140° F	-	RFQ
A	TM07NPOXXC	7.6 To 76 lpm	FNPT	3/4"	225 psi	32 To 140° F	£561.69
A	TM10NP9GMC	19 To 190 lpm	FNPT	1"	225 psi	32 To 140° F	£931.81
A	TM10NPOXXC	19 To 190 lpm	FNPT	1"	225 psi	32 To 140° F	-	RFQ
A	TM10SP9GMC	19 To 190 lpm	Spigot	1"	225 psi	32 To 140° F	£901.93
B	TM10SPOXXC	19 To 190 lpm	Spigot/Slip	1"	225 psi	32 To 140° F	-	RFQ
A	TM15NP9GMC	38 To 380 lpm	FNPT	1.5"	225 psi	32 To 140° F	£1,040.45
A	TM15SP9GMC	38 To 380 lpm	Spigot	1.5"	225 psi	32 To 140° F	£961.69
B	TM15NQ9GMC	38 To 380 lpm	Spigot/Slip	1.5"	225 psi	32 To 140° F	-	RFQ
B	TM30NPOXXD	40 to 400 gpm	FNPT	3"	225 psi	32 To 140° F	-	RFQ
D	TM40SPOXXD	60 to 600 gpm	Spigot	4"	225 psi	32 To 140° F	-	RFQ
A	TM20SP9GMC	76 To 760 lpm	Spigot	2"	225 psi	32 To 140° F	£1,468.65
A	TM20NP9GMC	76 To 760 lpm	FNPT	2"	225 psi	32 To 140° F	£1,533.84
B	TM20NPOXXC	76 To 760 lpm	FNPT	2"	225 psi	32 To 140° F	-	RFQ
B	TM20SPOXXC	76 To 760 lpm	Spigot/Slip	2"	225 psi	32 To 140° F	-	RFQ
E	TM30FPOXXE	151 To 1514 lpm	Swivel Flange	3"	225 psi	32 To 140° F	-	RFQ
B	TM30SPOXXD	151 To 1514 lpm	Spigot/Slip	3"	225 psi	32 To 140° F	-	RFQ
E	TM40FPOXXE	227 To 2217 lpm	Swivel Flange	4"	225 psi	32 To 140° F	-	RFQ
A	TM40NPOXXE	227 To 2217 lpm	FNPT	4"	225 psi	32 To 140° F	-	RFQ

GPI -

A1 Series, Commercial Grade Meters

Style	Model	Flow Range	Connection Size	Connection Type	Flow Material	Max. Pressure	Fluid Temp. Range	Price (inc. VAT)
A	A1Q9GMN025NA1	1 To 11 lpm	1"	FNPT	Water, Water Based Non Corrosive Fluids, Water Like Liquids	300 psi	0 To 129° F	£597.60
A	A1Q9GMA100NA1	11 To 190 lpm	1"	FNPT	Fuels	300 psi	0 To 129° F	£571.99
A	A1Q9GMN100NA1	11 To 190 lpm	1"	FNPT	Water, Water Based Non Corrosive Fluids, Water Like Liquids	300 psi	0 To 129° F	£929.13
B	A1Q9GMA200NA2	114 To 1135 lpm	2"	FNPT	Fuels	300 psi	0 To 129° F	£1,751.10

GPI -

FM-300 Series, Chemical Meters

Style	Model	Display Units	Connection Size	Flow Range	Connection Type	Max. Pressure	Fluid Temp. Range	Price (inc. VAT)
A	FM300H/R	gal.	1"	7 To 75 lpm	FNPT x MNPT	50 psi	15 To 130° F	£613.25
A	FM300HL/R	Liter	1"	7 To 75 lpm	FNPT x MNPT	50 psi	15 To 130° F	£613.25

FLOMEC -

OM Series, Medium Capacity Oval Gear Flow Meters

Style	Model	Connection Size	Flow Range	Height	Housing Material	Length	Max. Pressure	O Ring Material	Output Type	Price (inc. VAT)
A	OM025S003-822R5G	1"	2.6 to 40 gpm	6.5"	316 SS	6 9/10"	990 PSI	PTFE Encasulated FKM	4-20 ma, Scaled pulse	£3,229.99
B	OM025A001-822R5G	1"	10 To 150 lpm	6 3/5"	Aluminum	5 2/5"	990 PSI	FKM	4 To 20 mA Scaled Pulse	£2,135.80
B	OM025A513-822R5G	1"	10 To 150 lpm	6 3/5"	Aluminum	5 2/5"	990 PSI	PTFE Encasulated FKM	4 To 20 mA Scaled Pulse	£2,443.53
B	OM040A001-822R5G	1.5"	15 To 250 lpm	7 9/10"	Aluminum	7 2/5"	435 psi	FKM	4 To 20 mA Scaled Pulse	£3,020.46
A	OM015S513-822R5G	1/2"	1 To 40 lpm	5 4/5"	316 SS	4 3/10"	990 PSI	PTFE Encasulated FKM	4 To 20 mA Scaled Pulse	£3,061.62
A	OM015S003-822R5G	1/2"	1 To 40 lpm	5 4/5"	316 SS	4 3/10"	990 PSI	PTFE Encasulated FKM	4-20 ma, Scaled pulse	£2,694.90
B	OM050A001-842R5G	2"	30 To 500 lpm	8 3/5"	Aluminum	8 3/10"	285 psi	FKM	4 To 20 mA Scaled Pulse	£4,444.26
C	OM050S003-842R5G	2"	30 To 500 lpm	8 3/5"	316 SS	8 3/10"	550 psi	PTFE Encasulated FKM	4 To 20 mA Scaled Pulse	£7,365.61

FLOMEC -

OM Series, Small Capacity Oval Gear Flow Meters

Style	Model	Connection Size	Flow Range	Height	Housing Material	Max. Pressure	O Ring Material	Output Type	Power Requirement	Price (inc. VAT)
A	OM006S513-822R5G	1/4"	0.0333 To 1.6667 lpm	4 4/5"	316 SS	495 PSI	PTFE Encasulated FKM	4-20 ma, Scaled pulse	8V to 24V DC	£2,110.01
A	OM006A511-822R5G	1/4"	0.0333 To 1.6667 lpm	4 4/5"	Aluminum	220 psi	FKM	4 To 20 mA Scaled Pulse	8 To 24V DC	£1,708.18
A	OM004A511-822R5G	1/8"	0.0167 To 0.6 lpm	4 4/5"	Aluminum	220 psi	FKM	4 To 20 mA Scaled Pulse	8 To 24V DC	£1,669.76
A	OM004S513-822R5G	1/8"	0.0167 To 0.6 lpm	4 4/5"	316 SS	495 PSI	PTFE Encasulated FKM	4 To 20 mA Scaled Pulse	8 To 24V DC	£1,910.81
A	OM008S513-822R5G	3/8"	0.25 To 9.167 lpm	5"	316 SS	495 PSI	PTFE Encasulated FKM	4-20 ma, Scaled pulse	8V to 24V DC	£1,989.94

DAYTON -

Flowmeters w/ Digital LCD
Dayton flowmeters are designed to accurately measure flow rate of viscous liquids, water, oil and chemicals. They are installed between two fluid pipelines, serving both as a connector and measuring device. These meters have a turbine which is rotated by the upcoming flow and a digital display for accurately displaying the flow rate in unit, such as litre, gallon, quarts, pints, ounces and decilitres. Choose from a wide range of flowmeters, available in nylon and aluminium housing options on Raptor Supplies.

Style	Model	Accuracy	Ambient Temp. Range	Display Units	Fitting Size	Flow Range	Housing Material	Max. Viscosity	Power Requirement	Price (inc. VAT)
A	32ZN65	+/-0.5 %	7 Degrees to 131 Degrees F	Liters/Gallons/Quarts/Pints/Ounces/Deciliters	1/2"	0.3 to 8 gpm	Aluminum	2000 cps	3V Lithium Ion Battery	£371.03
B	32ZN69	+/-1.0 %	14 Degrees to 122 Degrees F	Liters/Quarts/Pints/Gallons	1"	1.3 to 32 gpm	Nylon	5.35 cps	(2) AAA 1.5V Batteries	£477.69

GPI -

G2 Series, Turbine Type Flowmeters

Style	Model	Max. Pressure	Connection Size	Flow Range	Accuracy	Housing Material	Price (inc. VAT)
A	G2P05NQ9GMA	100 psi	1/2"	3.8 To 38 lpm	+/- 1.5%	PVDF	-	RFQ
B	G2H10NQ9GMV	3000 psi	1"	19 To 190 lpm	+/- 1%	316 SS	-	RFQ
C	G2H07NQ9GMV	3000 psi	3/4"	7.6 To 76 lpm	+/- 1%	316 SS	-	RFQ

FLOMEC -

Electronic Flowmeter, Oval Gear, 0.25 To 8 gpm Flow Range, 1/2 FNPT

Model	Item	Price (inc. VAT)
LM51DN	CG6EBG	£544.95

FLOMEC -

Electronic Flowmeter, Oval Gear, 2.6 To 40 gpm Flow Range, 1 FNPT

Model	Item	Price (inc. VAT)
OM025P003-822R5G	CG6ECT	£2,008.49

FLOMEC -

Electronic Flowmeter, Turbine, 30 To 300 gpm Flow Range, 2 FNPT

Model	Item	Price (inc. VAT)
03A32GM	CG6EBV	-	RFQ

GPI -

Electronic Flowmeter, Turbine, 5 to 50 gpm Flow Range, 1 Inch Flange

Model	Item	Price (inc. VAT)
G2S10FQ9GMD	CH6HHC	-	RFQ

Electronic Flowmeters

Electronic flowmeters are used to measure the volume or mass of liquid, gas or vapour passing through food processing equipment or plumbing lines. Raptor Supplies offers a wide range of these electronic flowmeters from brands like Dayton, Fill-rite, Flomec and GPI. GPI flowmeters feature a turbine capable of delivering flow rates within the range of 3 – 30 GPM (10 – 100 LPM) and facilitate direct mounting on the nozzle for easy reading. These compact and lightweight flowmeters have an aluminium housing for withstanding impact loads and further come equipped with a nylon rotor, ceramic bearings, a tungsten carbide shaft and a 4-digit LCD screen.
The Flomec flowmeters have a positive displacement design that allows direct volumetric measurement and remains unaffected by changes in temperature, pressure or viscosity – factors which can cause measurement errors in other flowmeter technologies. Raptor Supplies offers a wide range of these flowmeters available in pressure rating options of 50 PSI, 150 PSI, 285 PSI, 580 PSI and 1500 PSI.

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Electronic Flowmeters

01A Series, Digital Fuel Meters

OM Series, Medium Capacity Oval Gear Flow Meters

OM Series, Small Capacity Oval Gear Flow Meters

03A Series, Fuel Meters

Electronic Flowmeter, Flexible Extension

Electronic Flowmeter, Rigid Extension

QSE Series Electromagnetic Meters

G2 Series, Turbine Type Flowmeters

TM Series, Turbine Type Water Meters

01N Series, Water Meters

A1 Series, Commercial Grade Meters

FM-300 Series, Chemical Meters

OM Series, Medium Capacity Oval Gear Flow Meters

OM Series, Small Capacity Oval Gear Flow Meters

G2 Series, Turbine Type Flowmeters

Electronic Flowmeter, Oval Gear, 0.25 To 8 gpm Flow Range, 1/2 FNPT

Electronic Flowmeter, Oval Gear, 2.6 To 40 gpm Flow Range, 1 FNPT

Electronic Flowmeter, Turbine, 30 To 300 gpm Flow Range, 2 FNPT

Electronic Flowmeter, Turbine, 5 to 50 gpm Flow Range, 1 Inch Flange

Electronic Flowmeters

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Electronic Flowmeters

Electronic Flowmeter, Oval Gear, 0.25 To 8 gpm Flow Range, 1/2 FNPT

Electronic Flowmeter, Oval Gear, 2.6 To 40 gpm Flow Range, 1 FNPT

Electronic Flowmeter, Turbine, 30 To 300 gpm Flow Range, 2 FNPT

Electronic Flowmeter, Turbine, 5 to 50 gpm Flow Range, 1 Inch Flange

Electronic Flowmeters

Frequently Asked Questions

Which type of flow meters are most precise?

What is the expected life of a flow meter?

What are the points to be considered before choosing any flow meter?

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