Viking Pump TSM442: GG-AL 4195-G LP-Gas - Manual (Page 8)

SECTION TSM 442 ISSUE C PAGE 8 OF 10
SUPPLEMENTaRY SECTION
INTRODUCTION
Your Viking Model GG 4195G pump is a high quality pump,
which will give you years of service if properly installed
Correct installation, particularly with regard to the vertical
distance between the bottom of the tank and the pump inlet
port, and the size of suction fittings and the size and length
and the size and length of the suction hose is very important
on any LP-Gas pump Improper installation will result in
reduced service life of your pump
figure 8 illustrates your Viking pump unit with all its features
fIgURE 8
gg4195D-g LP-gaS PUMP UNIT
ELECTRIC MOTOR WITH UL
aPPROVaL fOR LP gaS
SERVICE 1750 RPM, ½ HP
REQUIRED fOR 75 PSI
bY-PaSS VaLVE SETTINg
* When viewing the unit from the motor end, looking toward
the pump, the correct pump rotation is clockwise and the
suction or inlet port is on the right
PORTS:
1” PIPE TaP
0.50” N.P.T. PRESSURE
RELIEf VaLVE CONNECTION
ROTaTION*
SUCTION DISCHaRgE
RETURN-
TO-TaNk
PRESSURE
RELIEf VaLVE
A return-to-tank pressure relief valve (See Figure 9) is
mounted on the head end of the pump (See Figure 8) This
valve has 0 50” NPT connection for the return line (A on
Figure 9) The pump will not operate satisfactorily without
this return line being hooked up
The cap (B on Figure 9) of the pressure relief valve must
always point to the suction or inlet port of the pump If the
rotation of the pump shaft is reversed so that the flow through
the pump is reversed, then the pressure relief valve must be
removed, turned 180º and remounted
Normal setting for the pressure relief valve on the GG4195G
LP-Gas pump is 75 PSI (when a pressure gauge in the
discharge port reads 75 PSI higher than a pressure gauge
in the suction port, all of the liquid will be flowing through the
pressure relief valve back to the tank) Higher-pressure relief
valve settings are not encouraged, since they reduce pump
life, do not significantly speed up the transfer or filling rate
and often require a larger motor
fIgURE 9
RETURN-TO-TaNk PRESSURE RELIEf VaLVE
“gg” , “HJ” aND “HL” SIZE