& SERVICE CENTER FOR
25340 Terra Industrial Dr
Chesterfield, MI 48051
Ph (586) 949-6860
Fax (586) 949-0370
3755 Linden S.E.
Grand Rapids, MI 49548
Ph (616) 241-4695
Fax (616) 241-4394
Parker (Gresen) and Cross Manufacturing
Monoblock Control Valve series' offer a great product in a small one-piece body
design. Common uses include agricultural, mobile
and industrial applications, where a solid
performing, basic control valve is required.
Options are available to accommodate cylinder and
hydraulic motor operation, as well as various
spool and shift type configurations.
Monoblock Control Valves (Legacy product)
-up to 20 GPM nominal flow/2000psi
Monoblock body design
Available in parallel (SP &
SPK) or series
Available in 1-, 2-, or 3-spool
(model SSK available in
Adjustable or non-adjustable
relief valve. Optional
differential poppet, main
relief valve available.
Built-in, reverse flow check
one check for
A port circuit and
one for B port circuit in
series SP and SPK (one for
each spool in
Control handles may be mounted in
Numerous spool positioner options
Example P/N'S: SP-4-HP, SSK-4-4-HP
Parker Model SP/SPK/SSK Monoblock type
Directional Control Valves are
manufactured to give outstanding
long-lasting peformance. Spools are
hone-fitted for above average 'load
SP valves are available in 3
way(single acting) or 4 way(double
acting), 4 way free flow(motor) or with
combinations of each. Valves are
available with 1, 2 or 3 spools.
Model SPK valves are available in
1, 2 or 3 spool configurations. The
number 1 spool is always a 4 way 4
position float spool, with the center
core and work ports open to tank. The
remaining spools are standard 3 or 4
way, with center (neutral position)
Model SSK valves are designed for
series circuit operation, whereas
simultaneous operation of two cylinders
or motors is possible by directing the
discharge oil from the cylinder or motor
controlled by the number 1 spool to the
cylinder or motor controlled by the
number 2 spool. the number 1 spool is
always a 4 way 4 position float spool,
the number 2 spool is a 4 way 3 position
spool with spring return to neutral.
Pressure is additive, thus the sum of
both sections cannot exceed the main
relief or pump pressure rating.
Directional Control Valve
to 9 gpm, 3000 psi, ductile iron
unit or multi-function operation
with stackable capabilities
spool metering, low leakage, manual
and float detents available.
AD Directional Control Valve
gpm, 3000 psi, 1 or 2 spool model
with integral relief and loadchecks.
metering, low leakage.
of spool types and actuator options
beyond and closed center available
BA Directional Control Valve
- 1, 2
or 3 spool valve, 30 gpm, 2500 psi.
metering, integral differential
poppet-type relief and load checks.
of spool types and actuator option.
beyond and closed center available.
BC Directional Control Valve
spool, manually adjustable, built-in
pressure compensated priority type
and options similar to BA except
open center only.
- 1 or
2 spools, 30 gpm, built-in relief,
pressure balanced hard chrome spools
are select fit honed.
in 3-way and 4-way configurations,
open or closed center, variety of
Model CA - manual version,
Model CD - automatic pressure
Model CS - solenoid operated
spool standard model, open center
field conversion from 4-way to 3-way
as well as spring centered to manual