Lockout valves are installed in pneumatic drop
legs, or individual pneumatic control lines. In accordance with OSHA procedures,
lockout valves are used during maintenance
and service procedures of pneumatically (air)
operated equipment. Prior to servicing, the red
handle is pressed inward, blocking pressure and
relieving all downstream air pressure. A padlock
is installed through the locking hasp, preventing
accidental actuation during the maintenance
procedure. Following maintenance, the padlock
is removed and the red handle is pulled
outward, returning air pressure to the system.
Placement of Lockout Device
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
With a short inward push of the
red handle, the flow of supply air
is blocked from the outlet port.
Downstream air flows from outlet
to exhaust port. The valve must
be padlocked while in this position
during maintenance to prevent it
from being inadvertently pulled
outward and creating the potential
for injury to people or machinery.
When the red handle is pulled out,
supply air flows freely from inlet
to outlet, and flow to the exhaust
port is blocked. A detent keeps the
handle in the open position. The
handle is not designed to be locked
in the open position so that the
valve is always ready for shutoff.
This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users having technical expertise. The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors. To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems.