Page 2 - Parker - Shuttle Valves

Catalog HY15-3502/US
Technical Tips Shuttle Valves

CV
INTRODUCTION:
Shuttle valves accept flow from two different sources and divert the highest pressure to a single outlet port.
Shuttle valves are commonly used in Load Sensing circuits as well as Brake circuits. Parker offers many
Valves
Check
different types of shuttles, including ball type, poppet type, spool type. There are a number of configurations
SH
available such as cartridge type, insert type, and an in-line version.
Ball Type - Cartridge Style (2) (3)
Valves
Shuttle
Outlet Inlet
LM The valve consists of a steel ball that
(1) (3)
can seal against one of two adjacent
(1)
seats, providing a path from the highest Inlet
pressure signal to another function. (2)
Load/Motor
Controls
When one inlet port is pressurized, the
FC
ball or poppet is forced against the opposite seat,
blocking that inlet and providing a flow path to the outlet port.
Controls
Flow
PC
Poppet Type - Insert Style (2) Out
This shuttle performs the same
(1) (3)
function, but allows for higher flow
Pressure
Controls
rates due to poppet design. (1) (3)
In
In
LE
(2)
Elements
Logic
DC
In-Line Type (Out) Outlet
This shuttle variant performs the same
function in a self-contained body. It can
(In) (In)
Directional
Controls
be mounted anywhere on the machine.
MV
Inlet Inlet
Manual
Valves
SV
Spool Type - Centered or Spring Offset
The spool type shuttle allows for higher flow rates. These are 2 position valves.
Solenoid
Valves
PV
(3) (1) (3) (1)

Valves
Proportional
CE
(2) (2)
(2) Out (3) In (2) Out (3) In

Coils &
Electronics
BC (1) (1)
In In

Bodies &
Cavities
TD

Data
Technical
SH1 Parker Hannifin Corporation
Hydraulic Cartridge Systems