hdb15dl6sm-REV0208
Models HDB1½-A, HDB40-A Page 1
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
drawing for your specific model when installing, disasembling or servicing
your pump.
PRINCIPLE OF PUMP OPERATION
This ball type check valve pump is powered by compressed air and is a 1:1 pres-
sure 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 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. Do not install on suction head in excess of 10 feet of liquid (3.048 meters).
Consult factory if conditions exceed this recommendation.
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. Tighten all gaskets prior to start-up.
This pump was tested at the factory prior to shipment and is ready for operation.
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, INC. A Unit of IDEX Corporation P.O. Box 1568 Mansfield, Ohio 44901-1568 USA (419) 524-8388 Fax (419) 522-7867
SERVICE AND OPERATING MANUAL
Model HDB1½-A
Type 6
Model HDB40-A
Type 6
WARNING
HAZARD WARNING -POSSIBLE
EXPLOSION HAZARD can result if
1,1,1-Trichloroethane, Methylene
Chloride or other Halogenated
Hydrocarbon solvents are used in
pressurized fluid systems having
Aluminum or Galvanized wetted parts.
Death, serious bodily injury and/or
property damage could result. Consult
with the factory if you have questions
concerning Halogenated Hydrocarbon
solvents.
I M2 c T5
II 2GD T5
CE
Summary of Contents for HDB1
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