PLA-7665, No Action Safety Function Anchor Darling Double Disc Gate Valves

No Action Safety Function Anchor Darling Double Disc Gate Valves

ML17347A906
Person / Time
Site:	Susquehanna
Issue date:	12/13/2017
From:	Berryman B Susquehanna, Talen Energy
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
PLA-7665
Download: ML17347A906 (1)

Text

TALEN~

Brad Berryman Susquehanna Nuclear, LLC Site Vice President 769 Salem Boulevard Berwick, PA 18603 Tel. 570.542 .2904 Fax 570.542.1504 ENERGY Brad.Berryman@talenenergy.com DEC.1 3 _201 7 U.S. Nuclear Regulatory Commission 10 CFR 50.4 ATTN: Document Control Desk Washington, DC 20555-0001 SUSQUEHANNA STEAM ELECTRIC STATION NO ACTION SAFETY FUNCTION ANCHOR DARLING DOUBLE DISC GATE VALVES UNIT 1 LICENSE NO. NPF-14 Docket No. 50-387 UNIT 2 LICENSE NO. NFP-22 50-388 PLA-7665

References:

I) Letter from Greg Krueger (NEJ) to John Lubinski, U.S. Nuclear Regulatory Commission, Anchor Darling Double Disc Gate Valve Industry Resolution Plan Update (Project 689), dated August 4, 2017 (ML17220A363)

2) Letter from Joe Pollock (NEI) to Brian Holian, U.S. Nuclear Regulatmy Commission, NSIAC Concurrence on Anchor Darling Double Disc Gate Valve Industry Response Actions (Project 689), dated October 26, 2017 (ML17303A031)

In Reference 1, the Nuclear Energy Institute (NEI) provided the NRC a resolution plan for the U.S. Nuclear Industry to address the known Anchor Darling Double Disk Gate Valve (ADDDGV) issues. Reference 2 indicated each utility will provide a listing of their Anchor Darling valve population with active safety functions along with relevant valve infmmation, including the results of susceptibility evaluations, repair status, and a repair schedule for each susceptible valve not yet repaired. Reference 2 also stated that utilities or sites without active safety function Anchor Darling DDGVs would also provide a response.

This letter serves to confirm that Susquehanna Steam Electric Station Unit 1 and 2 does not use Anchor Darling Double Disk Gate Valves with a threaded stem to upper wedge connection that is operated by an actuator that applies torque on the valve stem to suppmi any active safety function.

Should you have any questions regarding this submittal, please contact Mr. Jason Jennings, Manager- Nuclear Regulatory Affairs at (570) 542-3155.

This letter contains no new regulatory commitments.

B. Berryman