Section T-3 MTH PUMPS T31 Series

1 GALLONS PER MINUTE02468101112 HEAD IN FEET050100150200250300T31 Series (60 Hz ODP Service Factor Motor Horsepower Selections*)3450 RPMA B C D E F G HOPEN DRIP PROOF MOTORS ONLY13579 Section T-3* Horsepower data is valid for specific gravity fluids only Capacities to 10 GPM Heads to 300 Feet Low NPSH Requirements Horizontal Close Coupled Flex CoupledMTH PUMPST31 SeriesT31 SERIES1/31/21/31/3 Composite CurvesT31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008T31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company.

2 January 2008 Page T-4 Composite Curves* Horsepower data is valid for specific gravity fluids GALLONS PER MINUTE010 HEAD IN FEET0501001502002503009T31 Series (50 Hz Service Factor Motor Horsepower Selections*)2880 RPMA B C D E F G HALL MOTOR GALLONS PER MINUTE02468101112 HEAD IN FEET050100150200250300T31 Series (60 Hz Service Factor Motor Horsepower Selections*)3450 RPMA B C D E F G HALL MOTOR ENCLOSURES135791/31/31/31/21/21/23/41/31 /31/31/21/31/21/31/31/31/31/21/21/21/3T3 1 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008 Page T-5 Performance Curves Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids GALLONS PER IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 BHP* GALLONS PER IN RPMHead-CapacityBHP*% EfficiencyNPSH 4.

3 7 BHP* 40%T31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008 Page T-6 Performance GALLONS PER IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 BHP* GALLONS PER IN $ 0 RPMHead-CapacityBHP*% EfficiencyNPSH 4 BHP* 40% Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids onlyT31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008 Page GALLONS PER IN RPMBHP*% EfficiencyNPSH 4 7 BHP* GALLONS PER IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 BHP*EFF Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids onlyT31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company.

4 January 2008 Page T-8 Performance GALLONS PER IN RPMBHP*% EfficiencyNPSH 4 7 10 BHP* GALLONS PER IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 BHP* Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids onlyT31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008 Page T-9 Performance GALLONS PER MINUTE0123456 HEAD IN RPMHead-Capacity% EfficiencyNPSH 4 7 10 BHP*EFFBHP* GALLONS PER IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 BHP* Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids onlyT31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company.

5 January 2008 Page T-10 Performance GALLONS PER MINUTE0123456 HEAD IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 BHP* GALLONS PER MINUTE026 HEAD IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 10 BHP* Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids onlyT31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008 Page T-11 Performance GALLONS PER MINUTE010 HEAD IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 10 BHP* GALLONS PER MINUTE026 HEAD IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 BHP* Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids onlyT31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company.

6 January 2008 Page GALLONS PER MINUTE010 HEAD IN * 0 RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 BHP* 40%Performance GALLONS PER MINUTE02358101112 HEAD IN RPMHead-CapacityBHP*% EfficiencyNPSH 4 7 10 BHP* Indicates altered performance at NPSH Available* Horsepower data is valid for specific gravity fluids onlyT31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008 Page T-13 DimensionsHorizontal Close CoupledNOTESAll dimensions in inches. May vary for construction purposes unless certified.

7 *See motor dimension ( Section Motors) for C-AH dimension (varies depending on motor enclosure).C-AH*2F1 5/16BA1 3/163/4 NPT Inlet3/4 NPT DischargeL21/41 1/2 DHD4-H12HS7/8ET31 Series THREE PHASE HORIZONTAL CLOSE COUPLEDHPFRAMEENCLDEHBA2 FHSHDL1/3 to 171 TEF2 13/162 3/161/4-205 3/83 9/166 1/167 1/8181 1/280 TEF3 1/82 7/163/8-165 1/23 15/166 3/87 7/1618 EROTATIONIN2513 Standard 360 PositionROTATIONIN2513 Optional 90 PositionROTATIONIN2513 Optional 270 PositionROTATIONIN2513 Optional 180 PositionC-AH*2F1-5/16BA1-3/163/4 NPT Inlet3/4 NPT DischargeL21/41 1/2 DHDE4-H TAPS1E12111HS7/8T31 Series SINGLE PHASE HORIZONTAL CLOSE

8 COUPLEDHPFRAMEENCLADEHBA2 FHSHDL1/3 ~ 148 ODP6 1/432 1/85/16-186 5/162 3/46 1/47 5/16181 1/256 ODP6 1/43 1/22 1/85/16-186 3/82 3/46 3/47 13/1618 Optional Steel Base (Not included in standard price)EEAO ptional Steel Base (Not included in standard price)T31 SERIEST31 Series PUMPS Copyright 2008 MTH Tool Company, January 2008 Page T-144-H TapsEE112-3/8-16 Taps2 7/162 7/1612114-17/32 Dia. Foundation HolesP2 Bearing Frame ROTATIONIN2513 Standard 360 PositionROTATIONIN2513 Optional 90 PositionROTATIONIN2513 Optional 270 PositionROTATIONIN2513 Optional 180 PositionT31 Series WITH P2 BEARING FRAMEFRAMEDUBA+N+W2 FEHKHSHDLM563 1/25/84 5/832 7/165/16-185/86 3/47 3/4243/16HD3/4 NPT Discharge1/43/4 NPT InletHSD1 1/22 3/83/8K3/4 KeyU KeyLC-AH*BA+N-W2F36 1/217/8 NOTESAll dimensions in inches.

9 May vary for construction purposes unless certified.*See motor dimension ( Section Motors) for C-AH dimension (varies depending on motor enclosure).Optional Steel Base (Not included in standard price)