Utah Admin. Code R315-265-1056 - Air Emission Standards for Equipment Leaks - 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 always seal the open end 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 so that the valve on
the hazardous waste stream end is closed before the second valve is
closed.
(c) If 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 R315-265-1056(a) at any other time.
Notes
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