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. Valves can be inline mounted or surface mounted using the two 11/32″ mounting holes provided in the valve body. Mount valves in plain view with the handle oriented for accessibility. Lubrication: For best results and service life, use clean, moisture free, lubricated air. Recommended lubricant: F442 Oil. Plastic handle. Aluminum spool. Carboxylated nitrile Seals. Stainless dteel detent dpring. Magnalube G grease.