Goulds Pumps GSP Series, Installation, Operation And Maintenance Instructions

Page: 9 / 28

9
Engineering Data
Noise level
The noise generated by a pump depends on different factors. Most important are: power,
speed and brand name of the motor, whether there is cavitation or not, operating point
of the pump, and handling of small quantities of air. A guide value for the sound pressure
level measured in dB(A) at a distance of 3 feet from the pump with a 2 pole motor
operating at 60 Hz in ideal circumstances with cold water is 78 dB(A) for pumps up to 5
hp, 83 to 85 dB(A) for pumps with motors ranging from 7.5 to 50 hp. For pumps with 4
or 6 pole motors, the value can be decreased with +/- 8 dB(A).
Maximum Liquid Temperature:
250ºF (120ºC)
Note: Pump and piping should be protected from skin contact if temperature is less
than 10ºC or higher than 40ºC
Maximum Working Pressure (Fluid temperature dependant):
S1 – 125 PSIG (9 Bar); S2 – 150 PSIG (10.5 Bar)
Maximum Suction Pressure:
=125 PSIG/150 PSIG – Pump generated pressure (see performance curve)
Starts per hour:
20 evenly distributed with standard across the line start
Unlimited with soft starter or drive
Connections
The following table shows the discharge and suction sizes in inches for each of the GSP
pumps. The Pump designation is the first three characters of the pump model number.
Pump Designation Fitting Size (discharge x Suction) Nominal Impeller
S1A 1 x 1.5 5
S1B 2 x 2.5 4
S2A 1.5 x 2 7
S2B 2 x 2.5 7
S2C 2.5 x 3 7
S2D 1.5 x 2 8
S2E 2 x 2.5 8
S2F 2 x 2.5 9
S2G 2.5 x 3 9
S2H 2 x 2.5 11
Name Plate
Model #
The various versions of the GSP are identified by a product code number on the pump
label. This number is also the catalog number for the pump. The meaning of each
digit in the product code number is shown in the Appendix. Not all combinations are
possible; consult your Goulds Pumps distributor for specific requirements.
Performance
Performance curves and dimension drawings for your Goulds model GSP may be found
in the selection program available on
www.goulds.com . The correct performance curve
can be determined from the name plate model number as defined above. You will need
to know pump size, impeller trim and operating speed.