AC International 8200 Series Useful Formulas, Single Phase Motor Three Phase Motor

Page 35

APPENDIX “C” FIELD TEST REPORT

USEFUL FORMULAS

 

 

1) Head (ft.) =

Pressure (psig.) x 2.31

S.G. = specific gravity;

S.G. of water = 1.0 at 70°F

 

S.G.

 

 

2)TDH (ft.) = Total Dynamic Head (ft.) = (Disch. pressure gauge reading - Suct. pressure gauge reading) + (Discharge velocity head - Suction velocity head) +

(Elevation correction to disch. gauge - Elevation correction to suct. gauge)

3)PUMP INPUT HP (BHP) - calculated:

Single Phase Motor

 

Three Phase Motor

BHP =

Amps x Volts x nm x p.f.

BHP =

Avg. Amps x Volts x 1.732 x nm x p.f.

 

746

 

746

where nm = motor efficiency, p.f. = motor power factor, Avg. Amps = leg1+ leg 2 + leg 3 3

4) Pump Efficiency (np):

np = GPM x TDH 3960 x BHP

5) Affinity Laws for correcting GPM, TDH, and BHP for speed (RPM):

GPM1

 

RPM1

 

 

2

RPM1

GPM2

=

RPM2

or

GPM1 = GPM x

RPM2

TDH1 = ( RPM1 )2

or

TDH1

= TDH2 x ( RPM1 )2

TDH2

 

RPM2

 

 

 

RPM2

BHP1

 

3

 

 

2

3

 

RPM1

 

 

RPM1

BHP2

=( RPM2 )

or

BHP1

= BHP x ( RPM2 )

6)NPSHA DETERMINATION:

NPSHA = Net Positive Suction Head Available

NPSHA = (Atmospheric pressure - Vapor pressure of liquid + Total suction head)

Total Suction Head = (Suction pressure gauge reading + Suction velocity head + Elevation correction to suction gauge)

NOTE: NPSHA must always be greater than NPSHR (NPSHA ≥ NPSHR) for the pump to operate without concern of cavitation.

NPSHR refers to Net Positive Suction Head Required by pump. This is a published value obtained from the Pump Manufacturer’s curve.

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Contents Series Base Mounted Centrifugal Fire Pumps Table of Contents Seal Operating Limits DescriptionOperational Limits Maximum Working PressureSafety Instructions Safety InstructionsMechanical Safety Additional Safety RequirementsElectrical Safety Thermal SafetyReceiving Pump InstallationPump Location Foundation Temporary StorageLocation Alignment Procedure Base Plate Setting Before PipingGrouting Procedure See ANSI/OSHA Coupler Guard REMOVAL/INSTALLATIONRemoval ANSI/OSHA Coupler Guard REMOVAL/INSTALLATIONInstallation Correct Alignment Incorrect AlignmentSuction and Discharge Piping Parallelindicator AlignmentAngulardial DowelingSuction Piping Suction Installations Piping Supports not ShownValves in Discharge Piping Valves in Suction PipingDischarge Piping Stuffing BOX Lubrication Pressure GaugesPump Insulation Controlled Pressure System Starting OperationPRE-START Checks PrimingMaintenance of Pump DUE to Flood Damage MaintenanceField Testing General MaintenancePacking Seal Cleaning Without Dismantling PumpBearing Lubrication Grease Every Month Months Every Year Maintenance Time TableNo Liquid Delivered Trouble ShootingCauses CuresNot Enough Pressure Pump Operates For Short Time, Then Stops Pump Takes Too Much PowerCauses Cures Counterclockwise Rotation Viewed from the Coupling END Changing RotationClockwise Rotation Viewed from the Coupling END Dismantling Pump with Packing Service InstructionsDisassembly and Reassembly Procedures Page Dimension a = Assembly Pump with Packing 350 FT.LBS MIN. Torque Required Page Impeller Design Data Appendix a Engineering DataCasing Data Stuffing BOX DataExploded View 8200 Series Fire Pump Clockwise Rotation Appendix BPart Number Part Name Quantity Replacement Parts ListInstructions for Ordering Parts Appendix C Field Test Report Useful Formulas Single Phase Motor Three Phase MotorFire Pump Canada

8200 Series specifications

The AC International 8200 Series represents a cutting-edge advancement in the realm of commercial and industrial automation. Tailored for efficiency and flexibility, this series is designed to meet the rigorous demands of modern applications across various sectors such as manufacturing, logistics, and energy management.

One of the standout features of the AC International 8200 Series is its robust control system. Equipped with an advanced microprocessor, the system ensures high performance, enabling real-time data processing and decision-making. This feature enhances the capability of users to manage complex operations while maintaining optimal productivity levels.

The 8200 Series integrates seamlessly with the latest communication protocols, such as Ethernet/IP and Modbus, allowing for smooth integration into existing infrastructures. This interoperability ensures that organizations can adopt the new series without incurring significant costs associated with overhauling their current systems.

Energy efficiency is another key characteristic of the 8200 Series. It incorporates a variety of smart technologies, including power monitoring and energy-saving modes, which help organizations reduce their operational costs and environmental footprint. These features are especially beneficial in industries where energy consumption is a significant concern.

In terms of user interface, the AC International 8200 Series offers a customizable touchscreen display that provides operators with real-time insights into their systems. This user-friendly interface facilitates quick troubleshooting and comprehensive monitoring, thereby promoting operational efficiency.

Furthermore, the series boasts enhanced safety features, including emergency stop functions and overload protection mechanisms. These safety characteristics are critical in environments where machinery operates at high capacities, ensuring the well-being of personnel and minimizing risks associated with operational failure.

With its modular design, the 8200 Series allows for easy scalability. This means that businesses can expand their systems according to growth and evolving demands without compromising performance or requiring extensive modifications.

Finally, AC International backs the 8200 Series with unparalleled customer support and comprehensive training resources, ensuring that businesses can fully harness the potential of their investments. As industries continue to evolve and embrace digital transformation, the AC International 8200 Series stands out as an essential solution for those looking to improve efficiency, safety, and sustainability in their operations.
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