Sandpiper W09 Service And Operating Manual

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 explod-
ed view drawing for your specific model when installing, disassembling or
servicing your pump.
PRINCIPLE OF PUMP OPERATION
This flap swing check 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 simultaneously 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 dis-
charged from the opposite side. The diaphragm operates under a balanced condi-
tion 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 dia-
phragm life.
Alternate pressuring and exhausting of the diaphragm chamber is per-
formed 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 valve spool. This pushes it into position for shifting of the air distribu-
tion valve.
The chambers are manifolded together with a suction and discharge
flap-type 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
suction 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 in-
stalled between pump and piping. This reduces vibration and strain to the piping
system. A surge suppressor is recommended to further reduce pulsation in flow.
This pump was tested at the factory prior to shipment and is ready for opera-
tion. 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 ¾" (19mm) in diameter) between pump and piping to eliminate
strain to pipes.
Warren Rupp, Inc. • A Unit of IDEX Corporation • 800 N. Main St. • Mansfield, OH 44902 USA
PULSAFEEDER ENGINEERED PRODUCTS OPERATION • 2883 Brighton-Henrietta Townline Road • Rochester, NY 14623
Phone: (419) 524-8388 • Fax: (419) 522-7867 • www.warrenrupp.com
Tel: (585) 292-8000 • Fax: (585) 424-5619 • www.pulsa.com
2" Non-Clog Wastewater
Air-Operated Double Diaphragm Pump
CE
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.
miscellaneous equipment must be grounded.
leakage. Follow recommended torques stated in
this manual.
piping, and all other openings and connections.
Be certain the air supply is locked out or made
non-operational, so that it cannot be started while
work is being done on the pump. Be certain that
approved eye protection and protective clothing are
worn all times in the vicinity of the pump. Failure to
follow these recommendations may result in serious
injury or death.
a product which is hazardous or toxic, the air
exhaust must be piped to an appropriate area for
safe disposition.
and must be bled of its pressure.
2" Non-Clog Wastewater Model W09
Model W09
Flap Valve Type 1
IMPORTANT
Read these safety warnings
a n d i n s t r u c t i o n s i n t h i s
manual completely, before
installation and star t-up
o f t h e p u m p . I t i s t h e
WARNING
Ta k e a c t i o n t o p r e v e n t
static sparking. Fire or ex-
plosion can result, especially
when handling flammable
liquids. The pump, piping,
valves, containers or other
CAUTION
Before pump operation, in-
spect all gasketed fasteners
for looseness caused by
gasket creep. Re-torque
loose fasteners to prevent
WARNING
Before d oing any main -
t e n a n c e o n t h e p u m p ,
be certain all pressure is
completely vented from the
pump, suction, discharge,
WARNING
In the event of diaphragm
rupture, pumped material
may enter the air end of the
pump, and be discharged into
the atmosphere. If pumping
WARNING
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
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