ML17223A745

Part 21 Rept Re Backup Rings Furnished in Spare Parts Seal Kits & in 25 Gpm 4 Way Valves as Part of Actuators Made of Incorrect Matl.Rings Should Be Viton & Have Been Identified as Buna N

ML17223A745
Person / Time
Site:	Palo Verde, Wolf Creek, Byron, Braidwood, Summer, Callaway, Waterford, 05000000
Issue date:	01/26/1990
From:	Knecht W ANCHOR/DARLING VALVE CO.
To:	NRC OFFICE OF ENFORCEMENT (OE)
References
REF-PT21-90-018-000 PT21-90-018-000, PT21-90-18, NUDOCS 9002160186
Download: ML17223A745 (10)

Text

Anchor/Darling Valve Company 701 FlRST STREET P.O.BOX 3425 WILLIAMSPORT, PA 17701~28 (717)327~TELEX: 759953 January 26, 1990 Director-Office of Inspection 8 Enforcement US Nuclear Regulatory Commission Washington, DC 20555

Subject:

10 CFR 21 Reportable Incident Gentlemen:

.A problem relating to Feedwater Isolation Valve actuators that we furnished to Kansas Gas and Electric, Wolf Creek has been identified by Wolf Creek personnel.

~Baoku rincis furnished in spare parts seal kits and possibly in the 25 GPM four-way valves which are part of the actuators are of incorrect material.The backup rings should be Viton and have been identified by Wolf Creek as Buna N.All customers that have actuators with Teledyne-Republic four-way valves will be notified of this problem.The following plant sites have equipment that may have wrong backup ring material furnished.

Commonwealth Edison Byron Units 1 and 2 Braidwood Units 1 and 2 Union Electric Galloway Kansas Gas and Electric Wolf Creek Washington Public Power Supply Unit 1 Unit 3 South Carolina Electric and Gas VC Summer Louisiana Power and Light Waterford 3 A~p s'i j$~4>>l V yl, January 26, 1990 Director Page 2 Arizona Public Services Palo Verde Units 1,2, and 3 Should you require additional information, please contact Mr.F.A.Bensinger or the writer.Sincerely, W.G.Knecht WGK/jf cc: A.F.J.R.G.H.F.E.Caron A.Bensinger J.Chappell W.Dommers W.Knieser R.Patterson Velez

\~~Anchor/Darling Valve Company 701 FlRST STREET P.O.BOX 8428 WILLIAMSPORT, PA 17701~8 TELEX: 759953 January 30, 1990 FLORIDA POWER 8 LIGHT COMPANY P.O.Box 1200 Jensen Beach, FL 34958 Attention:

Ed Priest

Subject:

HSIV/FWIV Actuator Hydraulic 4-Way Valves/Rebuild Kits

Reference:

P.O.No.NY-422702 St.Lucie'Nuclear Plant-Unit 2 A/DV S.O.E-9328 Gentlemen:

The Wolf Creek site has determined that some of the subject rebuild kits supplied by Anchor/Darling Valve Company contain backup rings of incorrect material, Buna N not Viton.Subsequent checks at A/DV have also found some of the subject rebuild kits at A/DV to contain backup rings of incorrect material.Use of the incorrect material in the hydraulic system could cause operational problems with the actuators and that could adversely affect the safety related function of the MSIV's/FWIV's.

This problem has been reported to the NRC by A/DV.Because of the finding, the 4-Way valves and 4-Way valve rebuild kits supplied by A/DV may contain non-viton 0-rings and backup rings.These 0-ring and backup ring materials should be verified as Viton.If they are not Viton, they should be replaced with Viton.We recommend that a specific gravity (S.G.)test be used for verification testing.Black Viton 0-rings/Backup rings (S.G.1.85 a.03)should sink in a 1.75 S.G.saline fluid but float in a 1.95 S.G.saline fluid.Brown Viton 0-rings/Backup rings (S.G.2.14+.03)should sink in a 1.95 S.G.saline fluid but float in a 2.22 S.G.saline fluid.Buna N 0-rings/Backup rings should float in 1.75 or higher S.G.saline fluid.At the conclusion of the specific gravity test, the saline solution should be rinsed from the seals and the seals dried.Continued.

FLORIDA POWER 5 LIGHT COt1PANY Attention:

Ed Priest Page Two January 30, 1990 A/DV has supplied 4-Way valves under the following identification numbers: MSIV 4-Way Valves (75 gpm Valves)Teledyne-Republic Model 823304-7001-2853

/A/DV M19595 FMIV 4-Way Valves (25 gpm Valves)Teledyne-Republic Model 823104-7001-2853

/A/DV W19488 A/DV has supplied 4-Way valve rebuild kits under the following identification numbers: NSIV 4-May Valve (75 gpm Valves)Rebuild Kits-Teledyne Republic 802090-2330-2802 A/DV Nos.: W30565 M31357 M31443 W32411 M33088 FMIV 4-Way Valve (25 gpm Valves)Rebuild Kits-Teledyne Republic 802090-2310-2802 A/DV Nos.: W30572 M30655 W31184 W31349 M32413 W32443 M32560 M32941 In response to EPRI NP-5652, A/DV has implemented a dedication program within the last year.A/DV's dedication program includes the above mentioned specific gravity test of Viton 0-rings and backup rings.As a result, the possibility of A/DV supplying incorrect material for seals for safety related components is minimized.

The rebuild kits containing the incorrect backup ring material were not previously processed through A/DV's dedication program.Should you require additional information on the above, please contact F.A.Bensinger at (717)327-4866 or W.G.Knecht at (717)327-4811.Sincerely, A CHOR DARLING VALVE COMPANY J I.Taylor, Jr.Contract Administ ato/eu cc: F.A.Bensinger W.G.Knecht H.L.Patterson G.R.Parks F.Velez S.O.No.E-9328 Anchor/Darling Valve Company 7O1 flRST STREET P.O.BOX 3428 WlLLIAMSPORT, PA 17701~8 TELEX: 759953 I january 31, 1990 GEORGIA POWER COMPANY Plant Alvin W.Vogtle P.O.Box 282 Waynesboro, GA 30830 Attention:

Randy Chitwood

Subject:

MSIV/FWIV Actuator Hydraulic 4-Way Valves/Rebuild Kits

Reference:

P.O.No.PAV2-84 Plant Alvin W.Vogtle A/OV S.O.E-9000 Gentlemen:

The Wol,f Creek site has determined that some of the subject rebuild kits supplied by Anchor/Darling Valve Company contain backup rings of incorrect material, Buna N not Viton.Subsequent checks at A/DV have also found some of the subject rebuild kits at A/OV to contain backup rings of incorrect material.Use of the incorrect material in the hydraulic system could cause operational problems with the actuators and that could adversely affect the safety related function of the MSIV's/FWIV's.

This problem has been reported to the NRC by A/OV.Because of the finding, the 4-Way valves and 4-Way valve rebuild kits supplied by A/DV may contain non-viton 0-rings and backup rings.These 0-ring and backup ring materials should be verified as Viton.If they are not Viton, they should be replaced with Viton.We recommend that a specific gravity (S.G.)test be used for verification testing.Black Viton 0-rings/Backup.

rings (S.G.1.85 a.03)should sink in a 1.75 S.G.saline fluid but float in a 1.95 S.G.saline fluid.Brown Viton 0-rings/Backup rings (S.G.2.14 t.03)should sink in a 1.95 S.G.saline fluid but float in a 2.22 S.G.saline fluid.Buna N 0-rings/Backup rings should float in 1.75 or higher S.G.saline fluid.At the conclusion of the specific gravity test, the saline solution should be rinsed from the seals and the seals dried.Continued.

GEORGIA POWER COMPANY Attention:

Randy Chitwood Page Two January 31, 1990 A/DV has supplied 4-Way valves under the following identification numbers: NSIV 4-Way Valves (75 gpm Valves)Teledyne-Republic Model 823304-7001-2853

/A/DV W19595 FWIV 4-Way Valves.(25 gpm Valves)Teledyne-Republic Model 823104-7001-2853

/A/DV M19488 A/DV has supplied 4-Way valve rebuild kits under the following identification numbers: MSIV 4-May Valve (75 gpm Valves)Rebuild Kits-Teledyne Republic 802090-2330-2802 A/DV Nos.: M30565 M31357 W31443 W32411 W33088 FMIV 4-Way Valve (25 gpm Valves)Rebuild Kits-Teledyne Republic 802090-2310-2802 A/DV Nos.: M30572 M30655 M31184 M31349 M32413 W32443 W32560 M32941 In response to EPRI NP-5652, A/DV.has implemented a dedication program within the last year.A/DV's dedication program includes the above mentioned specific gravity test of Viton 0-rings and backup rings.As a result, the possibility of A/DV supplying incorrect material for seals for safety related components is minimized.

The rebuild kits containing the incorrect backup ring material were not previously processed through A/DV's dedication program.Should you require additional information on the above, please contact F.A.Bensinger at (717)327-4866 or W.G.Knechf at (717)327-4811.Sincerely, ANCHOR/DARLING VALVE CONPANY Roberta L.Bergman Contract Administrato~

/eu cc: F.A.Bensinger G.R.Parks M.G.Knecht F.Velez H.L.Patterson S.O.No.E-9000 Anchor/Darling Valve Company , 701 RRST STRm'.O.BOX 342S WILLIAMSPORT, PA 17701~P17)327~TELEX: 759953 January 30, 1990 NORTHEAST UTILITIES NUCLEAR ENERGY COMPANY Purchasing Department P.O.Box 1928 Hartford, CT 06144-1928 Attention:

Manager of Purchasing

Subject:

MSIV/FWIV Actuator Hydraulic 4-Way Valves/Rebuild Kits

Reference:

P.O.No.2362.850-476-13 Millstone Nuclear Power Station, Unit 3 A/DV S.O.E-9450 Gentlemen:

The Wolf Creek site has determined that some of the subject rebuild kits supplied by Anchor/Darling Valve Company contain backup rings of incorrect material, Buna N not Viton.Subsequent checks at A/DV have also found some of the subject rebuild kits at A/DV to contain backup rings of incorrect material.Use of the incorrect material in the hydraulic system could cause operational problems with the actuators and that could adversely affect the safety related function of the MS I V'/FWI V'.This problem has been reported to the NRC by A/DV.Because of the finding, the 4-Way valves and 4-Way valve rebuild kits supplied by A/DV may contain non-viton 0-rings and backup rings.These 0-ring and backup ring materials should be verified as Viton.If they are not Viton, they should be replaced with Viton.We recommend that a specific gravity (S.G.)test be used.for verification testing.Black Viton 0-rings/Backup rings (S.G.1.85 a.03)should sink in a 1.75 S.G.saline fluid but float in a 1.95 S.G.saline fluid.Brown Viton 0-rings/Backup rings (S.G.2.14+.03)should sink in a 1.95 S.G.saline fluid but float in a 2.22 S.G.saline fluid.Buna N 0-rings/Backup rings should float in 1.75 orhigherS.G.

saline fluid.At the conclusion of the specific gravity test, the saline solution should be rinsed from the seals and the seals dried.Continued.

NORTHEAST UTILITIES NUCLEAR ENERGY COMPANY Attention:

Manager'of Purchasing Page Two January 30, 1990 A/DV has supplied 4-Way valves under the following identification numbers:.MSIV 4-Way Valves (75 gpm Valves)Teledyne-Republic Model 823304-7001-2853

/A/DV W19595 FWIV 4-Way Valves (25 gpm Valves)Teledyne-Republic Model 823104-7001-2853

/A/DV W19488 A/DV has supplied 4-Way valve rebuild kits under the following identification numbers: MSIV 4-Way Valve (75 gpm Valves)Rebuild Kits-Teledyne Republic 802090-2330-2802 A/DV Nos.: W30565 W31357 W31443 W32411 W33088 FWIV 4-Way Valve (25 gpm Valve)Rebuild Kits-Teledyne Republic 802090-2310-2802 A/DV Nos.: W30572 W30655 W31184 W31349 W32413 W32443 W32560 W32941 In response to EPRI NP-5652, A/DV has implemented a dedication program within the last year.A/DV's dedication program includes the above mentioned specific gravity test of Viton 0-rings and backup rings.As a result, the possibility of A/DV supplying incorrect material for seals for safety related components is minimized.

The rebuild kits containing the incorrect backup ring material were not previously processed through A/DV's dedication program.Should you require additional information on the above, please contact F.A.Bensinger at (717)327-4866 or W.G.Knecht at (717)327-4811.Sincerely, ANCHOR/DARLING VALVE COMPANY.I.Taylor, J C ntract Admsns/eu cc: F.A.Bensinger W.G.Knecht H.L.Patterson F.R.Carraro F.Velez S.O.E-9450 0~.~y