High-performance PistonPump P8V2R1A9A2A00

SERIES P16 P12 P09 P07 P05
MAXIMUM MOMENT (lb.in.) 14400 10100 8300 6300 5000
WEIGHT - W (pounds) 325 300 220 177 156
DISTANCE - L1 (inches to C/G) 10.4 8.6 8.5 8.0 7.0
DISTANCE - Lp (inches) 18.8 17.2 15.9 14.7 13.4
SERIES P260 P200 P140 P110 P080
MAXIMUM MOMENT (Nm) 1627 1141 938 712 565
WEIGHT - W (Newtons) 1446 1335 981 798 696
DISTANCE - L1 (mm to C/G) 264 218 216 203 178
DISTANCE - Lp (mm) 478 437 404 373 340
VALUES EXCEEDING MAXIMUM MOMENT MUST HE ADDITIONAL SUPPORT ON MOUNTED PUMP(S)
GENERAL
MOUNTING
INPUT SHAFT INFORMATION
CASE PRESSURE/PLUMBING
MAINTENANCE & SERVICE
RECOMMENDED FLUIDS
TEMPERATURE
FLUID CLEANLINESS
The open loop Premier Series pumps are variable displacement piston pumps with emphasis
on superior design with few maintenance requirements. Low inlet velocity requirements allow
the pumps to run faster than competitive models without the added expense of boosting the
inlet. Modified pistons that reduce the amount of trapped fluid volume result in improved efficiency. 
The Premier Series pumps he been designed to operate in a wide range of industries where
variable flow, high pressure and/or high speeds are required; such as: presses, construction
machinery, injection molding, wood, aircraft, drilling, mining, steel and cranes.
This pump is designed to operate in any position. For vertical mounting with shaft upward, it
is recommended that a 5 psi (0,3 bar) check valve be installed in the case drain port and that
the air bleed port (DG on page 36) be connected to the reservoir in order to circulate oil past
the shaft bearing. The mounting hub and four bolt mounting flange are in full conformance
with SAE/ISO standards. The pump shaft must be in alignment with the shaft of the source
driver and should be checked with a dial indicator. The mating pilot bore and coupling must
be concentric. 
Splined: The shafts must be aligned within a max. 0.006" , 0,15 mm TIR relative to pilot
diameter. Angular misalignment at the external and internal spline axis must be less than ±
.002" per inch , .002 mm per mm radius relative to pilot face. The coupling interface must
be lubricated. Denison recommends lithium molydisulfide or similar grease. The internal 
coupling should be hardened to 27-34 Rc. and must conform to SAE J498B (1971) class 1 flat
root side fit, ISO 4156 and DIN 5480.
Keyed: High strength heat treated keys must be used. Replacement keys must be hardened
to 27-34 Rc. The key corners must be chamfered .030" - .040", 075 - 1 mm at 450 to clear
radii that exist in the keyway. If a flexible coupling is not used, the alignment of keyed shafts
must be within tolerances given for splined shafts.
The case drain line should be as large as the drain port on the pump. The return to the 
reservoir must be below the surface of the oil and as far from the suction as possible.
The maximum case pressure is 25 psi (1,7 bar) continuous, 50 psi (3,4 bar) intermittent. Case
pressure must never exceed inlet pressure by more than 25 psi (1,7 bar).
When connecting the case drain line, make certain that the drain plumbing passes above the
highest point of the pump before returning to the reservoir. If not, install a 5 psi, 0,3 bar case
pressure check valve to ensure the case is filled with oil at all times.
All fluid lines, whether pipe, tubing, or hose, must be of adequate size and strength to assure
proper operation. 
Caution: Do not use galvanized pipe. The coating can flake off with continued use.
Make sure the entire hydraulic system is free of dirt, lint, or other foreign material. This pump
is self-lubricating and preventative maintenance is limited to keeping system fluid clean. Do
not operate at pressures and speeds in excess of the recommended limit. 
Denison Service manuals provide customer support in troubleshooting, installation, and
assembly/disassembly and reworking of parts. For additional support, your local Denison
Hydraulics representative is ailable.
See DENISON HYDRAULICS bulletin SPO-AM305 for more information
Maximum temperature is limited by the viscosity characteristics of the fluid used.
Because high temperatures degrade seals, reduce the service life of the fluid, and create hazards, fluid temperatures should not exceed 1800 F, 820 C at the case drain.
Fluid must be cleaned before adding to the system, and continuously during operation
by filters that maintain a cleanliness level of NAS 1638 Class 8. This approximately coresponds to ISO 17/14.