Page 5 - Parker - Logic Elements

Catalog HY15-3502/US
Technical Tips Logic Elements

CV
DIRECTIONAL CONTROL EXAMPLES

2-position, 2-way Pilot 2-position, 2-way Pilot Check Valves
normally open example. Directional normally open example. Directional
Valve
Valve
Switched by 2-position, Pilot Switched by external SH
Pressure
Fixed
3-way pilot valve and Source pilot pressure and Restrictor
Pilot
external pilot pressure. vented through Pressure
2-position, 2-way Source Shuttle Valves
pilot valve.
**SLC2A/R0*E3
Logic Element
**SLC2A/R0*E3 LM
Load/Motor Controls
Logic Element
Direction of Flow Direction of Flow FC

2-position, 2-way Pilot 2-position, 2-way Pilot Flow Controls
normally open example. Directional normally open example. Directional
Valve
Valve
Internal pilot generation. Internal pilot generation. PC
Pressure Controls

**SLC2B/R0*F3 LE
Logic Element **SLC1B
Logic Element
Logic Elements

Direction of Flow DC
Direction of Flow
Directional Controls
2-position, 2-way Pilot 2-position, 2-way Pilot
normally open example. Directional normally open example. Directional MV
Valve
Valve
Internal pilot generation. Switched by 2-position,
3-way pilot valve and
Manual Valves
external pilot.
**SLC1C
Logic Element SV
Solenoid Valves
**SLC1A
Logic Element

PV
Direction of Flow Direction of Flow
Proportional Valves
**SLC1A logic element. Pilot **SLC1A logic element. Pilot
With shuttle-selected Directional Valve External pilot supply and Directional CE
Valve
pilot supply. 2-position, 2-way pilot
directional valve. Fixed
Restrictor Electronics
Pilot Coils &
Source
BC
**SLC1A
Logic Element
**SLC1A
Logic Element Bodies & Cavities

Pilot Shuttle Valve TD
Technical Data
Direction of Flow Direction of Flow

LE4 Parker Hannifin Corporation
Hydraulic Cartridge Systems