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How to Convert Old GPI M/N's to New M/N's

Use this reference page to define and identify the type, size, material spec
and optional accessories on your older GPI Flow Meter

With the introduction of the new "09" Electronics package in 2003, GPI implemented a new Model Number Matrix for the GM Series Oval Gear Meters, G2 Series Industrial and A1 Commercial Series Liquid Turbine Meters. This page has been created for use as a quick reference guide to convert older GPI Model Numbers to the current Model Numbers. Where possible, hyperlinks to the corresponding current day model(s) have been provided. Use this page to identify the components/options on your existing meter and then go to the sales page for the current version of your flow meter and configure it using the available matching components and options.

(OK... so S/N: 0001 didn't really look like that, but you get the idea.)
Oval Gear Meters	A1 Turbine Meters	A2 Turbine Meters

GM Series Oval Gear Meters

Row 1 - GM1, GM2, GM4 (Pulse)	Row 2 - GM7, GM10, GM40 (Pulse)
Row 3 - GM50 (Pulse), GM4 Mechanical	Row 4 - GM10, GM40, GM50 (Mechanical)

GM1 - Oval Gear Meter
Range: 0.53 - 26.4 GPH
Body Size: 1/4"

GM2 - Oval Gear Meter
Range: 4.0 - 132.0 GPH
Body Size: 1/4"

GM4 - Oval Gear Meter
Range: 0.26 - 7.9 GPM
Body Size: 1/2"

Body Materials
R = PPS
S = Stainless Steel

Body Materials
A = Aluminum
S = Stainless Steel

Rotor Materials
R = PPS
S = Stainless Steel

Pulser/Display
P = Pulse Output Only
G = Standard Display

Pulser/Display
P = Pulse Output Only
E = Deluxe Display
G = Standard Display

Pressure
* = Standard Pressure
H = High Pressure
I = Intermediate Pressure

Port Inlet/Outlet
-1 = BSP Female 1/4" LTR Cal
-2 = NPT Female 1/4" GAL Cal

Port Inlet/Outlet
-1 = BSP Female 1/4" LTR Cal
-2 = NPT Female 1/4" GAL Cal

Port Inlet/Outlet
-1 = BSP Female 1/4" LTR Cal
-2 = NPT Female 1/4" GAL Cal

Sensor Type
* = Reed Switch
E = Hall Effect

Sensor Type
R = Reed Switch
E = Hall Effect

Rotor Options
* = Standard Viscosity
H = High Viscosity (SS)
H = High Viscosity (PPS)

O-Ring
* = Viton
J = EPDM
K = Chemraz

O-Ring
* = Nitrile
J = EPDM
K = Chemraz
V = Viton

Options
C = Hastelloy Shafts
A = 4-20mA - No Display
A = 4-20mA - W/Display
L = Liter Cal

Options
C = Hastelloy Shafts
V = High Viscosity Rotors
A = 4-20mA - No Display
A = 4-20mA - W/Display
L = Liter Cal

Options
A = 4-20mA - No Display
A = 4-20mA - W/Display
L = Liter Cal

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GM7 - Oval Gear Meter
Range: 0.8 - 21.0 GPM
Body Size: 1"

GM10 - Oval Gear Meter
Range: 1.6 - 32.0 GPM
Body Size: 1"

GM40 - Oval Gear Meter
Range: 2.6 - 66.0 GPM
Body Size: 1 1/2"

Body Material
R = PPS

Body Materials
A = Aluminum
S = Stainless Steel
B = Bronze

Rotor Material
R = PPS

Rotor Materials
R = PPS
S = Stainless Steel

Pulser/Display
P = Pulse Output Only
E = Deluxe Display
G = Standard Display

Pulser/Display
P = Pulse Output Only
E = Deluxe Display
G = Standard Display
B = Plug-N-Play

Pulser/Display
P = Pulse Output Only
E = Deluxe Display
G = Standard Display

Port Inlet/Outlet
-1 = BSP Female 1" LTR Cal
-2 = NPT Female 1" GAL Cal

Port Inlet/Outlet
-1 = BSP Female 1" LTR Cal
-2 = NPT Female 1" GAL Cal
-3 = ANSI 150lb - LTR Cal
-4 = ANSI 150lb - Gal Cal
-5 = DIN 16 Flange, LTR Cal
-6 = Tri-Clover Flange, 1" LTR Cal
-7 = Tri-Clover Flange, 1" GAL Cal

Port Inlet/Outlet
-1 = BSP Female 1 1/2" LTR Cal
-2 = NPT Female 1 1/2" GAL Cal
-3 = ANSI 150lb - LTR Cal
-4 = ANSI 150lb - Gal Cal
-5 = DIN 16 Flange, LTR Cal

Sensor Type
* = Reed Switch
E = Hall Effect

Sensor Type
* = Reed Switch
E = Hall Effect
1 = Plug-N-Play 110VAC
2 = Plug-N-Play 240VAC

Sensor Type
* = Reed Switch
E = Hall Effect

Rotor Options
* = Standard Viscosity (<1000cP)
H = High Viscosity (SS)
H = High Viscosity (PPS)

Rotor Options
* = Standard Viscosity
H = High Viscosity (SS)
H = High Viscosity (PPS)
T = High Temp (PPS)

O-Ring
* = Nitrile
J = EPDM
K = Chemraz
V = Viton

Options
C = Hastelloy Shafts
A = 4-20mA - No Display
A = 4-20mA - w/Display (Option G)
L = Liter Display w NPT Threads

Options
A = 4-20mA - No Display
A = 4-20mA - w/Display (Option G)
Y = Heating Jacket
L = Liter Display w/ NPT Threads

Options
A = 4-20mA - No Display
A = 4-20mA - w/Display
Y = Heating Jacket
L = Liter Display w/ NPT Threads

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GM50 -
Oval Gear Meter
Range: 4.0 - 92.5 GPM
Body Size: 2"

GM4 -
Mechanical Oval Gear Meter
Range: 0.26 - 7.9 GPM
Body Size: 1/4"

Body Materials
A = Aluminum
S = Stainless Steel

Rotor Materials
R = PPS
S = Stainless Steel

Rotor Materials
R = PPS

Pulser/Display
P = Pulse Output Only
E = Deluxe Display
G = Standard Display

Pulser/Display
M = Mechanical, Display Only

Port Inlet/Outlet
-3 = ANSI 150lb - LTR Cal
-4 = ANSI 150lb - Gal Cal
-5 = DIN 16 Flange LTR Cal

Port Inlet/Outlet
-1 = BSP Female 1/4" LTR Cal
-2 = NPT Female 1/4" GAL Cal

Sensor Type
* = Reed Switch
E = Hall Effect

Rotor Options
* = Standard Viscosity (<1000cP)
H = High Viscosity (PPS)
T = High Temp (PPS)

Rotor Options
* = Standard Viscosity (<1000cP)
H = High Viscosity (SS)
H = High Viscosity (PPS)
T = High Temp (PPS)

O-Ring
* = Viton
J = EPDM
K = Chemraz

O-Ring
* = Nitrile
J = EPDM
K = Chemraz
V = Viton

Options
S = Solvent Kit
L = Liter Display w/NPT Threads

Options
A = 4-20mA - No Display
A = 4-20mA - W/Display
Y = Heating Jacket
L = Liter Display w/ NPT Threads

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GM10 -
Mechanical Oval Gear Meter
Range: 1.6 - 32.0 GPM
Body Size: 1"

GM40 -
Mechanical Oval Gear Meter
Range: 2.6 - 66.0 GPM
Body Size: 1 1/2"

GM50 -
Mechanical Oval Gear Meter
Range: 4.0 - 92.5 GPM
Body Size: 2"

Body Materials
A = Aluminum
S = Stainless Steel
B = Bronze

Body Materials
A = Aluminum
S = Stainless Steel

Rotor Materials
R = PPS
S = Stainless Steel

Pulser/Display
M = Mechanical, Display Only
FA = Encoder Pulse Output

Port Inlet/Outlet
-1 = BSP Female 1" LTR Cal
-2 = NPT Female 1" GAL Cal
-3 = ANSI 150lb - LTR Cal
-4 = ANSI 150lb - Gal Cal
-5 = DIN 16 Flange LTR Cal

Port Inlet/Outlet
-1 = BSP Female 1 1/2" LTR Cal
-2 = NPT Female 1 1/2" GAL Cal
-3 = ANSI 150lb - LTR Cal
-4 = ANSI 150lb - Gal Cal
-5 = DIN 16 Flange LTR Cal

Port Inlet/Outlet
-3 = ANSI 150lb - LTR Cal
-4 = ANSI 150lb - Gal Cal
-5 = DIN 16 Flange LTR Cal

Rotor Options
* = Standard Viscosity
H = High Viscosity (PPS)
H = High Viscosity (SS)
T = High Temp (PPS)

O-Ring
* = Nitrile
J = EPDM
K = Chemraz
V = Viton

Options
S = Solvent Kit
Y = Heating Jacket
L = Liter Display w/NPT Threads

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A1 Commercial Grade Turbine Flow Meters - Current Model Number Prefix: A1

A1	Commercial Grade Electronic Digital Flow Meter
	Computer Configuration		All of these special configurations were replaced by the "09" Electronics in 2003; When configuring a current day replacement for A1 Commercial Grade Turbine Meter, choose the "09" electronics.
	01	Special, 1 Button
	02	Special, 2 Buttons
	03	2 Totals, 2 Calibrations
	04	2 Totals, 2 Calibrations, Rate of Flow
	05	3 Totals, Bypass, 3 Calibrations
	06	2 Totals, 1 Calibration
	07	3 Totals, Bypass, 3 Calibrations, Rate of Flow
	08	Rate of Flow, 2 Calibrations
	XX	No Computer, Turbine Body Only
	Factory Calibration Units
	GM	Gallons Per Minute	The "09" Electronics package offers both Gallons and Liters per minute on the same unit with the push of a button. Units with NPT or ANSI connections are assigned the GM designator; ISO threads use LM.
	LM	Liters Per Minute
	XX	No Computer, Turbine Body Only
	Turbine Size and Construction - This part of the model number was not changed;
	A025	Aluminum, Low Flow, 1"	Aluminum Flow Meters were/are designed primarily for Petroleum/Fuel applications;
	A100	Aluminum, Standard Flow, 1"
	A200	Aluminum, High Flow, 2"
	N025	Nylon, Low Flow, 1"	Nylon Flow Meters were/are designed primarily as Water Meters;
	N100	Nylon, Standard Flow, 1"
	End Fittings
	N	Female NPT
	I	Female ISO
	B	Female BSP (1" Meters only)
	X	No Turbine, Electronics only
	Packaging - Note: Packaging Codes are for internal factory use only and have no bearing on the form or function of the meter;
	A1	Standard Low Flow and 1 inch
	A2	Standard 2 inch
	B1	Low Flow and 1 inch Turbine Only (No Electronics specified)
	B2	2 inch Turbine Only (No Electronics specified)
	B3	Computer Only (No Body Specified)
	C1	Generic (Private Label) Low Flow and 1 inch
	C2	Generic (Private Label) 2 inch
	C3	Generic (Private Label) Computer Only
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A2 Industrial Series Turbine Flow Meters - Current Model Number Prefix: G2

Industrial Grade Turbine Flow Meter

Electronic Choice

Computer for Turbine Mounting

No Electronics

Flow Computer Configurations

2 Totals, 2 Calibrations

All of these special configurations were replaced by the "09" Electronics in 2003; When configuring a current day replacement for A1 Commercial Grade Turbine Meters, choose the "09" electronics.

2 Totals, 2 Calibrations, Rate of Flow

3 Totals, Bypass, 3 Calibrations

2 Totals, 1 Calibration

3 Totals, Bypass, 3 Calibrations, Rate of Flow

Rate of Flow, 2 Calibrations

No Computer, Turbine Body Only

Factory Calibration Units

Gallons Per Minute

The "09" Electronics package offers both Gallons and Liters per minute on the same unit with the push of a button. Units with NPT or ANSI connections are assigned the GM designator; ISO threads use LM.

Liters Per Minute

No Computer, Turbine Body Only

Turbine Material and Size

316SS		Alum		Brass		PVDF		PVC
S050	1/2"	A050	1/2"	B050	1/2"	P050	1/2"	C050
S075	3/4"	A075	3/4"	B075	3/4"
S100	1.0"	A100	1.0"	B100	1.0"	P100	1.0"	C100
S150	1 1/2"	A150	1 1/2"	B150
S200	2.0"	A200	2.0"	B200

Fitting Type

NPT (Female)

ISO (Female)

No Turbine

Packaging - Note: Packaging Codes are for internal factory use only and have no bearing on the form or function of this meter;

050, 075 or 100 Turbine with Computer

150 or 200 Turbine with Computer

050, 075 or 100 Turbine Only (No Computer)

150 or 200 Turbine (No Computer)

Computer Only (No Turbine)

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Last updated: Wednesday, December 3, 2008

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