Gorman-Rupp Pumps 3D-E1.5 1P 883504 and up - Manual (Page 7)

D SERIES OM-03604
PAGE A - 2 SAFETY
Do not install and operate a non‐explo­
sion proof motor in an explosive atmo­
sphere. Install, connect, and operate
the motor in accordance with The Na­
tional Electric Code and all local codes.
If there is a conflict between the instruc­
tions in the manual accompanying the
unit and The National Electric Code or
the applicable local code, The National
or local code shall take precedence.
Never install a positive shut‐off valve in the
discharge line; discharge restrictions will
cause excessive friction loss resulting in
overloading and destruction of pump and
drive components. It is strongly recom­
mended that unless absolutely necessary,
no positive shut‐off valve be installed in the
suction line; excessive restriction will
cause incomplete filling of the diaphragm
chamber and result in shortened dia­
phragm life.