Gorman-Rupp Pumps 112B60-B 758209 and up - Manual (Page 8)

10 SERIES OM-01828
PAGE B - 1 INSTALLATION
INSTALLATION - SECTION B
Review all SAFETY information in Section A.
Since pump installations are seldom identical, this
section offers only general recommendations and
practices required to inspect, position, and ar­
range the pump and piping.
Most of the information pertains to a standard
static lift application where the pump is positioned
above the free level of liquid to be pumped.
If installed in a flooded suction application where
the liquid is supplied to the pump under pressure,
some of the information such as mounting, line
configuration, and priming must be tailored to the
specific application. Since the pressure supplied
to the pump is critical to performance and safety,
be sure to limit the incoming pressure to 50% of the
maximum permissible operating pressure as
shown on the pump performance curve (see Sec­
tion E, Page 1).
For further assistance, contact your Gorman‐Rupp
distributor or the Gorman‐Rupp Company.
Pump Dimensions
See Figure B-1 for the approximate physical di­
mensions of this pump.
OUTLINE DRAWING
SUCTION:
BOTTOM 1” (25,4mm) DIAMETER SIX HOLES DRILLED THRU. TOP
0.88‐9 UNC‐3 SIX HOLES TAPPED TO DEPTH AS FOLLOWS: TWO
HOLES LOCATED 45
_
FROM CENTER ARE TAPPED 1.94 (49,2mm)
DEEP. REMAINING FOUR HOLES TAPPED THRU. ALL HOLES
LOCATED ON 17” (431,8mm) B.C.
SUCTION LINE NOTE:
FOR SELF PRIMING APPLICATION AVOID HORIZONTAL SUCTION LINES. IF USED, MAXIMUM ACCEPTABLE RUN
IS 6' (1,83m). PREFERRED INSTALLATION WOULD ANGLE SUCTION LINE DOWNWARD WITH 45
_
ELBOW AS
SHOWN. LONG HORIZONTAL SUCTION LINES REDUCE EFFICIENCY BY CREATING INCREASED PRIMING TIME,
INCREASED OPERATIONAL TIME IN PARTIAL PRIME CONDITION, SURGING, AND DECREASED SHAFT AND
BEARING LIFE.
DISCHARGE:
125# ANSI 10” (254mm) FLANGE 16” (406,4mm) O.D. TWELVE
HOLES 1” (24,4mm) DIA. ON 14.25” (362mm) B.C.
Figure B-1. Pump Model 112B60-B
PREINSTALLATION INSPECTION
The pump assembly was inspected and tested be­
fore shipment from the factory. Before installation,
inspect the pump for damage which may have oc­
curred during shipment. Check as follows:
a. Inspect the pump for cracks, dents, damaged
threads, and other obvious damage.
b. Check for and tighten loose attaching hard­
ware. Since gaskets tend to shrink after dry­