Pilot operated valves provide fast
response to regulate pressure. The
rugged design is ideal for systems
with extreme changes in pressure.
SPECIFICATIONS
Mounting
8800 Series, Line Connected;
P8800 Series, Subplate Mounted
(Available in Size 06 only)
Rated Flow
Size 03:
Nominal, U.S. 15 gpm (57 L/min);
Maximum, U.S. 25 gpm (95 L/min)
Size 06:
Nominal, 40 U.S. gpm (151 L/min);
Maximum, 60 U.S. gpm (227 L/min)
Rated Pressure
Standard:
3000 psi (210 bar)
HP Option:
5000 psi (350 bar)
Pressure Adjustment
Standard Pressure Range:
100 to 3000 psi (7 to 210 bar)
HP Option
100 to 5000 psi (7 to 350 bar)
LP Option:
50 to 1000 psi (4 to 70 bar)
Pressure is manually set by turning
the maximum pressure adjustment
(knurled knob or optional handwheel).
Turning clockwise increases pressure.
The setting is held by a locknut.
ELECTRIC VENT OPTION
Electrically operated pressure
controls are available (normallyopen,
EVO; or normally-closed,
EVC). Pressure is automatically
controlled by an integrally mounted
D03 valve.
With this option, relief valves can
control two pressure levels in a
circuit. When the
solenoid valve is
open, system pressure drops to its
lowest level. When the
solenoid valve
is closed, pressure rises to the control
knob setting on the relief valve.
Unloading valves can provide
automatic control, diverting pump
output to tank during idle portions of
the machine cycle.
APPLICATION NOTES
Mounting
Orientation:
Unrestricted for all models.
Subplate Models: Port o-rings are
included. Bolts must be ordered
separately, .625-11 U.N.C. Threaded
x 3.50 inches (88,9 mm). Recommended
torque is 55 lb•ft (75 N•m).
See page 3 for “Subplates and
Mounting Bolt Kits”.
Standard Seals
Fluorocarbon (Viton® or Fluorel®)
Fluid Recommendations
Viscosity:
50 to 1500 SUS (7 to 325 cSt)
Temperature Range:
-20° to +200° F (-29° to +93° C.)
Filtration
Use filtration to provide fluid which
meets ISO cleanliness level 19/17/14
(ISO Code 4406) or cleaner.
Pressure Surges
Consistent with standard practice,
the system should be protected from
pressure surges.
Regulation of internally drained valves
may be affected by surges in a common
tank line serving multiple valves.
A separate line is recommended.
High Pressure Hydraulics DYNEX ENGINEERING
SPECIFICATIONS
8800 Series Poppet Style 40 U.S. gpm (151 L/min) nominal;
Pressure Control Valves Standard 3000 psi (210 bar),
HP Option 5000 psi (350 bar)
Electric Vent Option
(Shown: Line Connected)
8800 Series
Line Connected
8800 Series
Subplate Mounted
03 9 34 35 2,4
25 95 165 11,4
06 27 102 20 1,4
60 227 115 7,9
. Pressure drop is comparable for all pressure
ranges.
Size
U.S. gpm L/min psi bar
Flow Vented ÄP
PRESSURE DROP (ÄP).
