Warren rupp SANDPIPER HDB3-A Service And Operating Manual

PLEASE NOTE!
The photos shown in this manual are for general instruction only. YOUR SPECIFIC
MODEL MAY NOT BE SHOWN. Always refer to the parts list and exploded view draw-
ing for your specific model when installing, disasembling or servicing your pump.
PRINCIPLE OF PUMP OPERATION
This ball valve pump is powered by compressed air and is a 1:1 pressure ratio
design. It alternately pressurizes the inner side of one diaphragm chamber, while si-
multaneously exhausting the other inner chamber. This causes the diaphragms, which
are connected by a common rod, to move endwise. Air pressure is applied over the
entire surface of the diaphragm, while liquid is discharged from the opposite side. The
diaphragm operates under a balanced condition during the discharge stroke, which
allows the unit to be operated at discharge heads over 200 feet (61 meters) of water
head.
Since the diaphragms are connected by a common rod, secured by plates to the
center of the diaphragms, one diaphragm performs the discharge stroke, while the
other is pulled to perform the suction stroke in the opposite chamber.
For maximum diaphragm life, keep the pump as close to the liquid being pumped
as possible. Positive suction head in excess of 10 feet of liquid (3.048 meters) may
require a back pressure regulating device. This will maximize diaphragm life.
Alternate pressuring and exhausting of the diaphragm chamber is performed by
means of an externally mounted, pilot operated, four-way spool type air distribution
valve. When the spool shifts to one end of the valve body, inlet air pressure is applied
to one diaphragm chamber and the other diaphragm chamber exhausts. When the
spool shifts to the opposite end of the valve body, the porting of chambers is reversed.
The air distribution valve spool is moved by an internal pilot valve which alternately
pressurizes one side of the air distribution valve spool, while exhausting the other
side. The pilot valve is shifted at each end of the diaphragm stroke by the diaphragm
plate coming in contact with the end of the pilot spool. This pushes it into position for
shifting of the air distribution valve.
The chambers are manifolded together with a suction and discharge check valve
for each chamber, maintaining flow in one direction through the pump.
INSTALLATION & START-UP
Locate the pump as close to the product being pumped as possible, keeping suc-
tion line length and number of fittings to a minimum. Do not reduce line size.
For installations of rigid piping, short flexible sections of hose should be installed
between pump and piping. This reduces vibration and strain to the piping system. A
Warren Rupp Tranquilizer surge suppressor is recommended to further reduce pulsa-
®
tion in flow.
This pump was tested at the factory prior to shipment and is ready for operation.
It is completely self-priming from a dry start for suction lifts of 20 feet (6.096 meters)
or less. For suction lifts exceeding 20 feet of liquid, fill the chambers with liquid prior
to priming.
AIR SUPPLY
Air supply pressures cannot exceed 125 psi (8.61 bar). Connect the pump air inlet
to an air supply of sufficient capacity and pressure required for desired performance.
When the air line is solid piping, use a short length of flexible hose [not less than
3/4" (19mm) in diameter] between pump and piping to eliminate strain to pipes.
Warren Rupp®, and SANDPIPER® are registered tradenames of Warren Rupp, Inc.
WARREN RUPP, INC. A Unit of IDEX Corporation P.O. Box 1568 Mansfield, Ohio 44901-1568 USA (419) 524-8388 Fax (419) 522-7867 www.warrenrupp.com
2/06
SERVICE AND OPERATING MANUAL
Models HDB3-A/HDB4-A
CE
I M2 c T5
II 2GD T5
IMPORTANT
Read these safety
w a r n i n g s
instructions in this
manual completely,
before installation and start-up of the pump.
It is the responsibility of the purchaser to
retain this manual for reference. Failure to
comply with the recommendations stated
in this manual will damage the pump, and
void factory warranty.
B e f o r e
operation, inspect all
gasketed fasteners
for looseness caused
by gasket creep. Re-
torque loose fasteners to prevent leakage.
Follow recommended torques stated in
this manual.
Before maintenance
or repair, shut off the
com-pressed air line,
bleed the pressure,
and disconnect the
air line from the pump.
The discharge line may be pressurized
and must be bled of its pressure.
I n t h e e v e n t o f
diaphragm rupture,
pumped material may
enter the air end of
the pump, and be
discharged into the atmosphere. The air
exhaust must be piped to an appropriate
area for safe disposition.
Take action to prevent
static sparking. Fire
o r e x p l o s i o n c a n
r e s u l t , e s p e c i a l ly
w h e n
flammable liquids.
T h e p u m p , p i p i n g ,
containers or other miscellaneous
e q u i p m e n t m u s t b e g r o u n d e d .
Models HDB3-A/HDB4-A Page 1 Rev B
Type 3
a n d
CAUTION
p u m p
WARNING
WARNING
WARNING
h a n d l i n g
v a l v e s ,