ML17037C785

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Table 7.2-1 (Cont'D) 4 of 6
ML17037C785
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 02/06/2017
From:
Niagara Mohawk Power Corp
To:
Office of Nuclear Reactor Regulation
References
Download: ML17037C785 (1)


Text

NMPNS-2 TABLE 7.2-1 (CONTtD)

Valve Location Number Approximate Valves Relative to Valve and/or Line Isolated of Lines Pipe Size, In.

Per Line ~Grou ~ttPrimary t

Operator

~xpe~6 Power

~en to tj>6)

Power

~ci to Isolation

~SS 1 Closing Normal

~T'e 7 11,12) Status(9,IO) emarks Instrument sensing line As required B Outside Flow check Spring Excess flow (not part of protection B Outside Hand Hand, Open) Typical of Class B Hand RM Open) instrument lines which system)

) do not form part of

) protection system Service air to drywell Inside Check Process Reverse flow Open Outside AO Air/A-c Spring RM Standard Open Instrument air to Later Inside Check Process Reverse flow Open drywell Outside AO Air/A-c Spring RM Standard Open Reactor Bldg. closed Outside MO A-c A-c Standard Open loop cooling water in Reactor Bldg. closed Ihltside MO A-c Standard Open loop cooling water out Demineralized water in B Inside Check Process Reverse flow Closed B Outside MO A-c A-c RM Standard Closed Drywall purge inlet 24 B Ins id.e AO butterfly A-c/Air Spring A>F,Z Standard Closed B Outside AO butterfly A-c/Air Spring Standard Closed Drywell main exhaust B Inside AO butterfly A-c/Air Spring A,F,Z Standard Closed B Outside AO butterfly A-c/Air Spring Standard Closed Drywell exhaust bypass Outside AO A-c Spring Standard A>F>Z Closed Suppression chamber purge 1 24 Inside AO butterfly A-c/Air Spring A>F,Z Standard Closed inlet Outside AO butterfly A-c/Air Spring Standard Closed Suppression chamber exhaust 1 Outside AO A-c Spring Standard valve bypass A>F>Z Closed Suppression chamber main Inside AO butterfly A-c/Air Spring A,F,Z exhaust Standard Closed Outside AO butterfly A-c/Air Spring Standard Closed Drywell air sample 1/2 Inside SO valve A-c Spring A,F,Z Open Outside SO valve D-c Spring Open Suppression chamber Inside SO valve A-c Spring A>F>Z Open air sample Outside SO valve D-c Spring Open 4of6