SANDPIPER G20 - Manual (Page 9)

sandpiperpump
.
com Model G20 Metallic •
6
g20mdl1sm-rev0614
Installation And Start-Up
Locate the pump as close to the product being pumped as possible. Keep the suction line length and number of fittings to a minimum. Do not reduce the suction line
diameter.
Gas Supply
Connect the pump gas inlet to an gas supply with sufficient capacity and pressure to achieve desired performance. A pressure regulating valve should be installed to
insure gas supply pressure does not exceed recommended limits.
Gas Valve Lubrication
The gas distribution system is designed to operate WITHOUT lubrication. This is the standard mode of operation. If lubrication is desired, install an gas line lubricator
set to deliver one drop of SAE 10 non-detergent oil for every 20 SCFM (9.4 liters/sec.) of gas the pump consumes. Consult the Performance Curve to determine gas
consumption.
Gas Line Moisture
Water in the compressed gas supply may cause icing or freezing of the exhaust gas, causing the pump to cycle erratically or stop operating. Water in the gas supply
can be reduced by using a point-of-use gas dryer.
Gas Inlet And Priming
To start the pump, slightly open the gas shut-off valve. After the pump primes, the gas valve can be opened to increase gas flow as desired. If opening the valve
increases cycling rate, but does not increase the rate of flow, cavitation has occurred. The valve should be closed slightly to obtain the most efficient gas flow to pump
flow ratio.
Recommended Installation Guide
Top Discharge Ball Valve Pump
CAUTION
The gas exhaust should
be piped to an area
for safe disposition
of the product being
pumped, in the event of
a diaphragm failure.
Natural Gas Exhaust
Natural Gas Inlet
Natural gas
supply conductive
piping must be supported
Gas Shut-Off
Valve
Available from Warren Rupp
2
1
Flexible
Conductive
Connection
Regulator
w/Gauge
Filter
Pipe Connection
(Style Optional)
Gauge
Shut-Off
Valve
SUCTION
Drain Port
Flexible
Connection
The pump must be rigidly mounted in the horizontal position with
fasteners to a conductive base or natural ground.
020.064.000 Filter
VENTING WARNING: This filter is equipped with a stainless steel manual drain. The port is 1/8" NPT. When draining moisture from the filter, first shut off the
natural gas supply.
020.059.000 REGULATOR WITH GAGE
PRESSURE WARNING: This regulator is to be installed at point of use with the pump. The maximum gas supply is 400psi. Full line pressure needs to be
regulated below 400psi prior to the regulator installation position.
VENTING WARNING: This regulator is equipped with a 1/4" NPT vent port. In the event of a diaphragm
rupture, natural gas can be exhausted into the surrounding environment. Connect a conductive hose or
pipe to the vent port to send the escaping natural gas to a safe area for gas reclamation. Make sure to
ground the regulator, hose, and/or pipe.
1
2
SUBMERGED ILLUSTRATION
UNIVERSAL ALL AODD, EXCEPT FLAP
2: INST
AL
& OP