Barksdale Series III-L Valves - Manual (Page 8)

Installation and Operating Instructions Series III-L Valve
For Barksdale Heavy Duty Integrated Actuator Valve
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Barksdale, Inc. 3211 Fruitland Avenue, Los Angeles CA 90058 (800) 835-1060 Bulletin No. 272346 Revision A
6.0 OPERATION
The series III-L valve is a 4-way 2 position valve with an integrated actuator. The actuator may be
driven either by air or hydraulic fluid. Due to different internal construction of actuator between air and
hydraulic model , customer needs to specify “H” for hydraulic and “A” for air in the product part number
when ordering.
Caution: Series III-L valve is designed to work only with oil-based hydraulic fluid. It is not
compatible with water-based hydraulic fluid
Warning : Series III-L valve is normally actuated pneumatically or hydraulically, operator is
cautioned to stay clear of the handle operating zone to avoid potential injury.
Actuated air pressure is recommended to be between 80 psi to 120 psi.
Hydraulic actuated pressure should be between 200 psi to 1,000 psi.
The valve is available with 3 different configurations
a) Closed center (selector) option “C”
b) Open center (tandem center) option “O”
c) Diverter (Bypass) option “D”
CLOSED CENTER (SELECTOR) OPTION
OPEN CENTER (TANDEM CENTER) OPTION