Industrial STC VHS5000-10 Shut Off Lockout Valve

STC VHS5000-10 is a 1" NPT Relieving Shut-off/Lockout Valve designed for STC’s 5000-10 Series FRL (Filter-Regulator-Lubricator) assemblies. It provides a relieving shut-off function and a lockout feature to safely isolate the air supply for maintenance and prevent unintended re-pressurization. The G port (inlet) is 1" NPT and the vent port (R) is 1/2" NPT, matching the 5000-10 FRL configuration. Catalog entries describe VHS5000-10 specifically as a 1" NPT Relieving Shut-off/Lockout Valve for the 5000-10 Series FRL, a component in STC Valve’s line of air-pressure regulators and lockout devices. Use cases include isolating a regulator or FRL for preventive maintenance, testing, or repair in industrial pneumatic systems, where a secure lockout and controlled venting are required. The part is referenced across STC catalogs as VHS5000-10, confirming its role as the standalone shut-off/lockout valve component within the 5000-10 family.