Utah Admin. Code R315-264-1056 - Standards: Open-Ended Valves or Lines
(a)
(1)
Each open-ended valve or line shall be equipped with a cap, blind flange, plug,
or a second valve.
(2) The cap,
blind flange, plug, or second valve shall seal the open end at all times except
during operations requiring hazardous waste stream flow through the open-ended
valve or line.
(b) Each
open-ended valve or line equipped with a second valve shall be operated in a
manner such that the valve on the hazardous waste stream end is closed before
the second valve is closed.
(c)
When a double block and bleed system is being used, the bleed valve or line may
remain open during operations that require venting the line between the block
valves but shall comply with Subsection R315-264-1056(a) at all other times.
Notes
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