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GP7136
User Manual
12 pgs572.13 Kb0

Giant GP7132, GP7136 User Manual

Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual
Model GP7132 & GP7136
Contents:
Warranty Information: back page
INSTALLATION INSTRUCTIONS
Installation of the Giant Industries, Inc., pump is not a complicated procedure, but there are some basic steps common to all pumps. The following information is to be considered as a general outline for installation. If you have unique requirements, please contact Giant Industries, Inc. or your local distributor for assistance.
1. The pump should be installed flat on a base to a maximum of a 15 degree angle of inclination to ensure optimum lubrication.
2. The inlet to the pump should be sized for the flow rate of the pump with no unnecessary restrictions that can cause cavitation. Teflon tape should be used to seal all joints. If pumps are to be operated at temperatures in excess of 140 insure a positive head to the pump to prevent cavita­tion.
3. The discharge plumbing from the pump should be properly sized to the flow rate to prevent line pres­sure loss to the work area. It is essential to provide a safety bypass valve between the pump and the work area to protect the pump from pressure spikes in the event of a blockage or the use of a shut-off gun.
4. Use of a dampener is necessary to minimize pulsation at drive elements, plumbing, connections, and other system areas. The use of a dampener with Giant Industries, Inc. pumps is optional, although recommended by Giant Industries, Inc. to further
0
F, it is important to
°
reduce system pulsation. Dampeners can also reduce the severity of pressure spikes that occur in systems using a shut-off gun. A dampener must be positioned downstream from the un­loader.
5. Crankshaft rotation on Giant Industries, Inc. pumps should be made in the direction desig­nated by the arrows on the pump crankcase. Reverse rotation may be safely achieved by following a few guidelines available upon request from Giant Industries, Inc. Required horsepower for system operation can be obtained from the chart on pages 3 & 6.
6. Before beginning operation of your pumping system, remember: Check that the crankcase and seal areas have been properly lubricated per recommended schedules. Do not run the pump dry for extended periods of time. Cavitation will result in severe damage. Always remember to check that all plumbing valves are open and that pumped media can flow freely to the inlet of the pump.
Finally, remember that high pressure operation in a pump system has many advantages. But, if it is used carelessly and without regard to its potential hazard, it can cause serious injury.
IMPORTANT OPERATING CONDITIONS
Failure to comply with any of these conditions invalidates the warranty
1. Prior to initial operation, add oil to crankcase so that the oil level is between the two lines on the oil dipstick. DO NOT OVERFILL. SAE 80 Indus- trial Gear oil may be used. Crankcase oil should be changed after the first 50 hours of operation, then at regular intervals of 500 hours or less de­pending on operating conditions.
2. Pump operation must not exceed rated pressure, volume, or RPM. device must be installed in the discharge of the system.
3. Acids, alkalines, or abrasive fluids cannot be pumped unless approval in writing is obtained before operation from Giant Industries, Inc.
4. Run the pump dry approximately 10 seconds to drain the water before exposure to freezing temperatures.
A pressure relief
2
0 1500 3000 4500
PSI
95
90
85
80
75
70
LP [dB(A)]
n-500 (1/min)
n-300 (1/min)
n-750 (1/min)
3000 PSI
4350 PSI
Specifications
Model GP7132
Volume ........................................................................................................ Up to 23.4 GPM
Discharge Pressure .................................................................................... Up to 4350 PSI
Speed .......................................................................................................... Up to 750 RPM
Inlet Pressure .............................................................................................. Up to 90 PSI
Plunger Diameter ........................................................................................ 32mm
Plunger Stroke ............................................................................................ 52mm
Crankshaft Diameter .................................................................................. 48mm
Key Width ................................................................................................... 14mm
Crankshaft Mounting .................................................................................. Either side
Shaft Rotation ................................................................................ Top of pulley towards manifold
Temperature of Pumped Fluids................................................................... Up to 140
Inlet Ports ................................................................................................... (2) 1 1/4" NPT
Discharge Ports .......................................................................................... (2) 3/4" NPT
Weight......................................................................................................... 374 lbs.
Crankcase Oil Capacity .............................................................................. 1.6 Gal.
Fluid End Material....................................................................................... Stainless Steel
Volumetric Efficiency @ 700 RPM ............................................................ 94%
Mechanical Efficiency @ 700 RPM .......................................................... 83%
Consult the factory for special requirements that must be met if the pump is to operate beyond one or more of the limits specified above.
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F
NPSHR Chart Decible Chart
26.2
23.0
19.7
16.4
13.1
9.8
6.6
3.3
NPSHR(FT-HEAD) Viscosity = 1 Centipoise
0 500 600 700 800
GP7132 HORSEPOW ER REQUIRMENTS
RPM GPM 1000 PSI 1400 PSI 2000 PSI 2500 PSI
300 9.4 6.7 9.4 13.4 16.7 20.1 29.1 400 12.5 8.9 12.5 17.8 22.3 26.7 38.8 550 17.2 1 2.3 17.2 24.5 30.6 36. 8 53.3 600 18.7 1 3.4 18.7 26.7 33.4 40. 1 58.2 650 20.3 1 4.5 20.3 29.0 36.2 43. 5 63.0 700 21.8 1 5.6 21.8 31.2 39.0 46. 8 67.9 750 23.4 1 6.7 23.4 33.4 41.8 50. 1 72.7
HORSEPOWER RATINGS:
The rating shown are the power requirements for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.
We recommend a 1.1 service factor be specified when selecting an electric motor as the power source. To compute specific pump horsepower requirements, use the following formula:
GPM X PSI
1400
3
Exploded View - GP7132 and GP7136 Pumps
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