Ill. Admin. Code tit. 35, § 725.956 - Standards: Open-Ended Valves or Lines
a) Equipment
1) Each open-ended valve or line must be
equipped with a cap, blind flange, plug, or a second valve.
2) The cap, blind flange, plug, or second
valve must seal the open end at all times except during operations requiring
hazardous wastestream flow through the open-ended valve or line.
b) Each open-ended valve or line
equipped with a second valve must be operated in a manner such that the valve
on the hazardous wastestream 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 must
comply with subsection (a) at all other times.
Notes
Amended at 29 Ill. Reg. 6389, effective April 22, 2005
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