Valve handle lock

摘要

A locking collar slideably fits over the control handle of a valve, such as a ball valve, and can be moved to locking and unlocking positions. The collar includes a pair of fork-like tines which are spaced apart to span a stop member on the valve body. One of the tines includes a tab with a threaded aperture for receiving a threaded adjustment screw. When tightened against the stop member, the screw secures the locking collar and, therefore, the valve handle in a fixed position, preventing inadvertent changing of the valve position. An aperture in the handle allows a lock to be inserted through the handle preventing movement of the locking collar to prevent changing of the valve position by unauthorized tampering.

主权项

1. A locking collar for a control handle of a valve with a valve body having stops engaging the control handle at open and closed positions, said collar comprising:
a collar slideably mounted to the handle of the valve; a pair of spaced-apart tines extending from said collar, said tines spaced apart to span a stop member on the valve body when said collar is moved to a position to engage the stop member; and a tab extending from at least one of said tines to align with a stop on the valve body, said tab having a threaded aperture for receiving a threaded adjustment fastener such that, when tightened against the stop member, the fastener secures the collar and valve handle in a fixed position preventing inadvertent changing of the valve position.