276 - Pump Principles Trainer

Product Dimensions
(L x W x H)
81in. x 22in. x 38in. (2000 x 550 x 975 mm)
300 lbs. (136 kg)

Shipping Dimensions
475 lbs. (215 kg)

A working, large-scale, yet economical, fluid process system allowing for hands-on training relating the operating principles, performance, troubleshooting and maintenance of industrial pumps. The basic device allows for the illustration of the performance of centrifugal pumps, under different circumstances, including those that impair performance. Basic pump principles such as NPSH, cavitation, the effect of alternate impeller types, and the application of affinity laws can be demonstrated. An “open architecture” allows for the addition of supplemental components addressing additional topics such as pumps in parallel/series, flow through pipe networks, flow through fittings, and introductory process control. With optional components, studies relating to other pump types can also be performed.

The device includes a industrial-duty water pump, incorporating many operating and maintenance features of common ANSI pumps.

The primary instruments and controls are mounted on an independent, tethered, control module, with 19in. rack mounting system. Additional or alternate instruments can be easily added using the control module provided or supplemental control module assemblies.

Based on the devices design features and the pump chosen, additional training topics, such as shaft alignment, vibration analysis, mechanical seal installation, and general pump maintenance can also be undertaken.
7-Gauge, formed-steel baseplate, 22" x 81", with provision for bench-top mounting or mounting on optional outrigger/caster set or support structure.
Welded and assembled rear panel framework using 1-1/2" square, 14-gauge steel tubing.
Powder-coated surfaces throughout.
Laminate-covered rear panel face.
Independent, 19" x 21" x 26" high control module assembly, with silk-screened and powder-coated primary control panel.
Transparent, schedule 80, PVC piping system, including: pump suction with ball valve, pressure tap, air entrainment valve, and removable pipe spool; pump discharge with throttling ball valve and pressure tap; pipe network with two return headers; multiple removable 24" pipe spools with unions and pressure taps (for alternate flow instruments); pump bypass with ball valve; system drain; system pump-down piping with hose connection and shut-off valve; and provision for addition of pipework for pumps in series/parallel demonstrations. Suction piping 1-1/4" diameter and discharge piping 1" and 3/4" diameter.
Modular pipe spools with unions, allowing for installation of optional orifice plate/flange assembly, optional pitot tube or user-defined optional flow instruments, in pipe network.
Two, supplemental t-slotted mounting pads on baseplate. (allows for mounting of standard and optional pressure gauge assemblies on provided stanchion, as well as control module or optional instrumentation.
Primary reservoir 30-gallon capacity, polyethylene.
Industrial-duty centrifugal pump with back pull-out design, (1-1/4" x 1"x 5"), 1-1/4" shaft diameter, with stainless shaft sleeve, producing a maximum of 35 gallons/min, and a maximum total head of 25 ft. Includes John Crane type 21 mechanical seal, semi-open impeller design, removable suction cover, removable backhead, and elastomeric element coupling. (Complete pump specifications can be provided).
Polycarbonate coupling guard.
Motor, 145T-frame, 2 hp, 3500 rpm, inverter-duty.
T-slotted aluminum pump and motor mounting rails, creating a 5-1/2" high shaft centerline position, and allowing for linear movement, adjusting for alternate coupling types. Four steel motor jacking bars provided allowing for alignment activities.
Control assembly power panel including circuit breaker with provision for lock-out/tag-out, pilot light, instructor key switch, emergency stop button, GFI device, AC-variable frequency drive, digital flow meter, and provision for optional panel-mounted control and instrumentation components. Control assembly tethers to pump assembly using multi-pin connectors.
Venturi tube flowmeter spool, with tubing quick-connect fittings.
Industrial-quality Allen-Bradley® AC drive, with provision for PID control, via voltage or current inputs.
Base-mounted, pressure gauge assembly, including two, 4" diameter pressure gauges with quick-connects.
System quick-disconnect fittings located at pump suction, pump discharge, and at removable spool locations.
Magnetic flow meter/transmitter, with 4-20 mA output, mounted in primary return line. Flow meter also allows for basic PID control, in conjunction with AC-Drive.
Provision for supplemental centrifugal pump, allowing for experiments relating to pumps in series/parallel.
Provision for alternate, optional pump types.
Provision for supplemental flow instruments.
Crating for shipment via motor freight.
#276-001 - Outrigger/Caster Set with four locking heavy-duty casters (4in. height)
#276-002 - Pump Gasket and Seal Maintenance Set
#276-005 - Clear Acrylic Pump Impeller Casing/Inlet (Replaces orignal cast iron casing for cavitation demonstration).
#276-006 - Clear Acrylic Pump Backhead (Replaces original cast iron backhead, allowing inspection of the stuffing box area)
#276-007 - Supplemental Impeller Set, Including (1), 3-1/2in. and (1) 4-1/2in. Diameter Impeller.
#276-008 - Supplemental Pipe Spool Set Allowing Installation of Tank 36in. Below Baseplate (requires #276-012).
#276-009 - Supplemental Pipe Spool Set Allowing For Experiements Relating To Flow Through Pipe, Pipe Fittings and Valves.
#276-010 - Orifice Plate, Pipe Spool With Flanges and Pressure Taps.
#276-011 - Supplemental Centrifugal Pump Kit
#276-020 - Air-operated, positive displacement pump assembly.
#276-021 - Piston-type, positive displacement pump assembly.
#276-022 - Gear-type, positive displacement pump assembly.
#276-024 - Piston (Plunger) Pump Assembly
#276-029 - Supplemental pressure gauge assembly, allowing pressure measurement in two alternate pressure ranges, with dedicated unique quick-disconnects. (For alternate pump types).
#276-500 - Use/Exercise Guide (Additional)
#276-PAC - Pump Principles Trainer, Quick-Start Package (includes: #276, #600-D96, #276-002, #276-005, #276-006, #276-007)
#464-023 - Basic DC/AC/Analog Allen-Bradley MicroLogix PLC Package.- Allen-Bradley, Model MicroLogix 1200 with features as follows: - Model 1200 PLC with 6K memory. - 24 On-board inputs. - 16 On-board outputs. - AC Input card (8 inputs). - AC Relay output card (8 outputs). - Analog Combination card (2 inputs, 2 outputs).
#600-005 - Supplementary, Free-Standing Instrument Rack.
#600-031 - Pitot tube flow assembly.
#600-032 - Venturi tube flow assembly.
#600-051 - Strip chart recorder, 2-pen (Yokogawa, SR 1000) (additional).
#600-055 - Gauge pressure transmitter (Honeywell ST-3000) (additional).
#600-056 - Differential pressure transmitter, supplemental.
#600-060 - Industrial PID controller w/panel (Honeywell UDC-3500,1/4 DIN).
#600-104 - Differential pressure gauge, low range (0-200in. H2O) (Dwyer).
#600-106 - U-tube manometer (-36in. - 0 - 36in. range).
#600-D07 - PLC control interface panel w/frame.
#600-D80 - Pipe spool assortment (supplemental).
#600-D96 - Support frame/caster assembly (30in. height).
•  (100'), 1/4in. Diameter instrument connection tubing
•  (8), Quick-disconnect nipples
•  (4), Tubing tees
•  (4), Tubing unions
•  Tubing cutter
•  Use/Exercise Guide.
200 - 290 VAC, 1-phase, 50/60 Hz
Training Capabilities:

•  Plot pump curves based on varied operating conditions, including impeller speed, total head, motor power input/draw.
•  Illustration and calculation of net positive suction head.
•  Illustration of affinity laws.
•  Illustration of suction losses on performance.
•  Demonstrate cavitation, and related decrease in pump efficiency, through pump suction modification.
•  Demonstrate process/pump control using variable frequency drives and flow.
•  Demonstrate pump “soft start” characteristics, vs instantaneous start.
•  Demonstrate pressure drop in piping systems.
•  Perform coupling/shaft alignment (requires additional tools).
•  Demonstrate mechanical seal installation.
•  Perform pump installation and set impeller clearance.

Training Capabilities With Optional Equipment:

•  Experiments relating to performance of pumps in parallel.
•  Experiments relating to performance of pumps in series.
•  Inspection of pump cavitation vapor formation under different operating conditions.
•  Training in coupling/shaft alignment.
•  Plot pump curves based on impeller diameter.
•  Training in mechanical seal installation and maintenance.
•  Experiments relating to flow control, using PID control and common flow instruments.
•  Experiments relating to the flow of liquid through piping systems and fittings.
•  Demonstration of vibration in rotating equipment.
•  Demonstration of the operating characteristics of air operated diaphragm pumps.
•  Demonstration of the operating characteristics of piston-type positive displacement pumps.
•  Demonstration of the operating characteristics of gear pumps.


This device has been designed for professionals for use under controlled circumstances for training only. DAC assumes no liability for injury resulting from the use or misuse of this product.
In accordance with DAC’s established policy of continuous improvement, these specifications and product descriptions are subject to change without notice. This information is the latest technical information as of the time of viewing or printing.