August 17, 1998 Design News
FEATURED PRODUCT
Piston pump offers higher speed operation
Charles J. Murray, Senior Regional
Editor
Mobile equipment applications, such as excavators and
refuse trucks, typically call for hydraulic components
capable of high speed operation.
To meet that need, Denison Hydraulics recently introduced
the P07 (P110 metric) pump to its line of "Premier
Series" piston pumps. The P07, like its predecessors
in the Premier Series, employs angled inlet and outlet
ports. By angling the ports, instead of orienting them
in standard-axial fashion, Denison engineers were able
to reduce the bore circle diameter of the pump. That,
in turn, enables higher speed operation. "When
you reduce that diameter, it brings the pump's pistons
closer together," notes Bill Johanson, a product
marketing manager for Denison. "And when you bring
those pistons closer together, the fluid travels less
distance, so you have less pressure loss. As a result,
it increases the filling capacity, which controls the
pump's maximum speed."
The P07 has a displacement of 6.7 cubic inches (109
cc/rev), a continuous operating pressure rating of 6,000
psi (415 bar), maximum intermittent pressure rating
of 7,250 psi (500 bar), and a maximum rating of 368
hp. Pump weight is 177 lbs.
With its higher speed capabilities, the P07 is ideal
for mobile applications. But it can also be used in
situations calling for high cycles and 24-hour-a-day
operation, such as steel mills and injection molding
machines.
Tweet This
0 
