GEO MYEONG POWER CO.,LTD

5 Thermal Power Generation Companies

Korea South-East Power Co., Ltd. Yeongheung Power Plant

· Performed maintenance on ST LPBP Body Seat for Unit 1
· Manufactured and installed core parts of ST MSV and CV for Units 1 and 2
· Manufactured rotor and diaphragm stands for Units 1 and 2
· Produced key components for ST circulation pumps for Units 1 and 2
· Maintained HIP Casing and fixed bolts of MSV/CRV for Units 1 and 2
· Overhauled HP, IP Nozzle Boxes and Diaphragms for Units 1 to 3
· Overhauled MSV Strainers and Seats for Units 1 to 3
· Manufactured and replaced MSI Snout Pipes and Seal Rings for Units 1 to 4
· Replaced MSV/CV Seats and Bushings, RSV/ICV components for Units 1 to 4
· Manufactured and maintained CWP Assemblies for Units 1 to 6
· Overhauled small hydroelectric components for Units 1 to 6
· Produced MSV Pressure Seal Head and 3 other parts for Unit 3
· Manufactured and replaced CV Stand Bushing for Unit 3
· Repaired damaged LPSV Pressure Seal Head of BFPT(A) for Unit 3
· Maintained Main Disc and Pilot Valve Seats of MSV and ICV for Unit 3
· Straightened UP & LO Shaft Bending of circulating water pumps for Units 3 and 4
· Maintained HP/IP Outer/Inner Casing, Seal Ring, and Nozzle Box for Units 3 and 4
· Overhauled BFPT Diaphragm for Unit 3
· Disassembled and maintained Turning Gear for Unit 3
· Designed and manufactured L-0 and L-1 pressure reinforcement plates for Unit 3
· Manufactured CV Stand Sleeve for Unit 3
· Maintained Reject Ash Aeration Blower (Model-OCDL13) for Units 3 and 4
· Manufactured/replaced MSI Snout Pipe Seal Ring and maintained 1st Stage Pipe for Unit 4
· Produced LDP Stud Bolt and other components for Unit 4
· Maintained CBP Half Joint surface and Casing for Unit 4
· Manufactured pressure plate for Cross Over Pipe and maintained Air Compressor for Unit 4
· Overhauled MSV, CV, RSV, and ICV for Unit 4
· Overhauled CRV Strainer for Unit 4
· Maintained Nozzle Box, IP 1st-stage, and LP-A, B Diaphragm Partitions for Unit 4
· Manufactured and replaced ICV Upper Head Bushing and Seal Ring for Unit 4
· Manufactured and replaced CV Stand Bushing and Sleeve for Unit 4
· Manufactured and replaced MSV/RSV Pressure Seal Head Bushing and Seal Ring for Unit 4
· Manufactured IP Cooling Pipe for Units 5 and 6
· Overhauled old/new HP Nozzle Boxes for Unit 5
· On-site repair of cracked ICV Disc for Unit 5
· Manufactured and replaced MSV and CV Disc, Seat for Units 5 and 6
· Manufactured Gate and Main Rotor Shaft for Units 5 and 6
· Removed and disassembled seized Blades for Units 5 and 6
· Maintained Dice Pilot Valve Seat of ICV for Unit 6
· Replaced CV Lower Stand Bushing for Unit 6
· Overhauled Valves and Diaphragms for Unit 6

Korea South-East Power Co., Ltd. Samcheonpo Power Division

· Maintained erosion area of ST Inner Barrel for Unit 3
· Manufactured Hood Cir Gib Keys for ST LP TBN (A,B) for Units 3 and 4
· Overhauled ST Diaphragms for Units 3 to 5
· Maintained erosion area of ST BFPT Main Pump Inner Casing for Unit 3
· Maintained stuck bolts on ST HPSV for Unit 3
· Overhauled ST BFPT Barrel Shaft (Rotor Ass'y) for Unit 3
· Manufactured Major Valves for ST OH use for Units 3 and 4
· Maintained ST BFP Main Pump (B) Suction Cover for Units 3 and 4
· Manufactured ST CV Disc and inner parts for Unit 4
· Maintained ST BFPT (A,B) Pump Inner Casing for Unit 4
· Overhauled ST HP Inner Casing and manufactured MSI Snout Pipe for Unit 5
· Overhauled ST Nozzle Box for Unit 5
· Manufactured ST LP Hood Spray Nozzle and N2 Packing Ring for Unit 5
· Manufactured main steam valve components for ST Units 5 and 6
· Overhauled ST IP Diaphragm for Unit 6
· Maintained ST BFPT-B Diaphragm for Unit 6
· Manufactured ST Piston Ring for Unit 6
· Overhauled ST MSV Strainer for Unit 6

KOSPO Yeosu Thermal Power Plant Headquarters

· Manufactured and replaced ST MSV#1 Seat for Unit 1
· Maintained ST CV No.1 Connector Ass'y for Unit 1
· Manufactured ST Finger Pin for Unit 1
· Maintained ST Longitudinal Key and Bolt for Unit 1
· Manufactured ST CV Disc for Unit 4
· Maintained major components of ST MSV for Unit 4

KOSPO Goseong Green Power Headquarters

· Maintained ST BFPT Exhaust Duct for Unit 1
· Maintained ST BFPM Barrel Casing for Unit 1
· Manufactured ST Vapor Fan Flange for Unit 1
· Manufactured ST IP Diaphragm Radial Key and Support Plate for Unit 1
· Manufactured ST CVP Shaft for Unit 1
· Maintained ST BFPT-A Exhaust Duct and Thrust BRG Cover for Unit 2
· Maintained and disassembled ST MSV(RH) & CRV#1 Strainer for Unit 2
· Maintained ST CWP for Unit 2
· Maintained and disassembled ST MSV for Unit 2

KOSPO Gangneung Power Headquarters

· Improved ST BFP-T(A) Exhaust Duct for Unit 1
· Maintained ST CWP and COP for Unit 1
· Maintained ST N2 Packing Casing, IP, and LP Casing Bolts for Unit 1
· Maintained ST MSV Pressure Seal Head, Cap, and Spacer for Unit 1

KOSPO Yeongdong Eco Power Headquarters

· Manufactured and maintained ST MSV Pressure Seal Head and related components for Unit 1
· Removed and maintained ST Nozzle Box and IP Diaphragm for Unit 2

KOSPO Bundang Power Headquarters

· Manufactured and replaced ST HPSV Strainer for Unit 1

KOMIPO Boryeong Power Headquarters

· Fabricated/Replaced ST CV Diffuser for Unit 3
· Manufactured MSV#2 Valve components for Unit 5
· Supplied ST MSV By-Pass Valve for Unit 6
· Manufactured main steam valve components for Units 7 and 8
· Fabricated/Repaired ST MSI Snout Pipe for Units 7 and 8
· Manufactured ST CV Lever Pins and others for Units 7 and 8
· Fabricated Hex Head Socket Bolt for Unit 7
· Disassembled HIP Inner Casing for Unit 7 (Removed Snout Pipe & Seal Ring)
· Manufactured Nozzle Box Key for Unit 7
· Manufactured CV Push Rod Pin for Unit 7
· Manufactured CRV Stud Bolt for Unit 7
· Disassembled ST LP Diaphragm for Unit 7
· Replaced MSV, CV, CRV Seats for Unit 7
· Performed Seal Face maintenance on Feedwater Pump for Unit 7
· Maintained ST CRV Casing for Unit 7
· Manufactured Main Steam Pipe and valve components for Units 7 and 8
· Disassembled BFPT-A and B Diaphragms for Unit 8
· Manufactured LP Cross Over Pipe Bolt & Nut for Unit 8

KOMIPO Jeju Power Headquarters

· Fabricated/Replaced MSV & CRV Seats for Units 2 and 3
· Disassembled and maintained CV Chest for Unit 2
· Manufactured main steam valve components for Unit 2
· Disassembled Diaphragm for Unit 2
· Manufactured and maintained MSV, CV, IV, RSV parts for Unit 2
· Fabricated and maintained IP and LP Casing Bolts for Unit 2
· Manufactured MSV/CV Stem & Seat, CRV Seat for Unit 3
· Fabricated Cover Bolts for MSV/CV/CRV/IV for Unit 3
· Maintained ST Nozzle Box for Unit 3
· Emergency maintenance on IP Casing Bolt, Diaphragm, and Major Valve for Unit 3

KOMIPO Shinseocheon Power Headquarters

· Performed sectional maintenance on ST BFPT #B Exhaust Pipe for Unit 1

KOMIPO Sejong Power Headquarters

· Dismantled and maintained ST Diaphragm & Casing

KOMIPO Shin Boryeong Power Plant Division

· Manufactured and assembled ST Ventilator Valve Seat for Unit 1
· Repaired damaged Back Seat of ST MSV Pressure Seal Head for Unit 1
· Manufactured Balance Weight Holder Ass'y and LPBP Bonnet Stud Bolt & Washer for Unit 1
· Manufactured and assembled ST Valve Seat for Unit 1
· Manufactured ST MSV and CV components for Unit 1
· Manufactured ST Ventilator Valve for Unit 1
· Maintained ST CRV Strainer for Units 1 and 2
· Dismantled and maintained ST CV for Unit 2
· Manufactured ST LP Diaphragm stands for Units 1 and 2

KOWEPO Seo-Incheon Power Plant Division

· Manufactured ST Casing Bolts & Nuts for Unit 1
· Manufactured HP 2nd Stage Bucket & Cover for Unit 1
· Disassembled and assembled ST MSCV Seat for Unit 1
· Manufactured HP 2nd Stage Blades for Units 1 to 4
· Dismantled and maintained ST Diaphragms for Units 1 and 3 to 8
· Maintained ST MSV, RSV Strainers, and Bonnet for Units 1 and 6
· Dismantled and maintained ST MSV Seat for Unit 5
· Serviced ST N2 Packing Box (Upper/Lower) for Unit 8
· Maintained ST Nozzle Box
· Manufactured ST TBN Spill Strip and Packing Ring
· Manufactured ST LSB[A] TE Side Pressure Plate
· Manufactured ST Main Steam Valve parts
· Dismantled and maintained ST MSV, RSV Strainer, and Casing
· Manufactured ST HP MSI Snout Pipe
· Maintained ST BFPT Diaphragm & Casing
· Maintained boiler feedwater pump
· Maintained Air Compressor (A) MTR Base
· Maintained N2 Packing Seal Box / Manufactured N2 Packing Casing

KOWEPO Shin-Pyeongtaek Power Plant Division

· Manufactured ST Main Steam Valve parts
· Dismantled and maintained ST HPCV Disc & Stem Assembly

KOWEPO Taean Power Plant Division

· Dismantled and maintained MSV Strainer for Unit 1
· Dismantled and maintained HIP and LP Diaphragm for Units 1–4, 8–9
· Manufactured Casing Bolts & Nuts for Unit 1
· Manufactured HP 2nd Stage Bucket & Cover for Unit 1
· Maintained BFPT LP Control Valve for Unit 1
· Manufactured LPCV and Bypass Valves for Units 1–4
· Manufactured CV, MSV, and IV components for Unit 2
· Dismantled HIP Inner Casing and Turning Gear for Unit 2
· Dismantled and maintained MSV and CRV Strainers for Units 2–4, 7, 8
· Maintained N2 Packing Box and HP Casing for Unit 3
· Manufactured main steam valve parts for Unit 7
· Replaced CRV Head Cover Stud Bolt and CV Lower Bushing for Unit 7
· Outsourced overhaul of Inner Casing and Nozzle Box for Unit 8
· Manufactured Nozzle Box Gib Key, RSV Spacer Disc, Stem, and Seat for Unit 8
· Replaced RSV Seat for Unit 8
· Maintained Nozzle Box Joint Bolts and Diaphragm for Units 8, 9
· Repaired seized bolts on Outer Casing for Unit 8
· Manufactured and replaced CV Stand Bushing and LPBP SV #A-1 Disc for Unit 9
· Manufactured MSV and CV Seats and Bushings for Unit 9
· Manufactured HPCV and CV components for BFPT #A and #B for Unit 9
· Repaired seized bolts on Major Valve for Unit 9
· Manufactured and replaced MSV and CV Seats and Bushings for Units 9, 10
· Repaired crack damage on LP 18th Stage for Unit 10
· Manufactured and replaced CRV Bushings and MSV Cap Bolts for Unit 10
· Maintained LP 1st Stage Diaphragm for IGCC

KOWEPO Gunsan Power Plant Division

· Replaced and maintained HPSV (LH) Seat
· Maintained HP SV and CV Valve Seats

KOSPO Busan Thermal Power Plant

· Repaired RSV stem, nut, and pin for Unit 1
· 1st RSV CEOT spacer ring for Unit 1
· Manufactured CRV parts for Unit 1
· Repaired CV cross head and stem for Unit 1
· Maintained and removed MSV and CV stem for Unit 1
· Removed #2 MSCV upper head for Unit 2
· Removed MSCV balancing chamber and upper head bushings A and B for Unit 2
· Manufactured #2 SV coupling bolt for Unit 2
· Manufactured MSCV A and B CEOT rings for Unit 2
· Repaired CV cross head and stem pin hole for Unit 2
· Replaced main steam valve for Unit 2
· Repaired CV cross head & stem pin hole for Unit 2
· Manufactured CRV parts for Units 2 and 3
· Removed MSCV-A and B strainers for Unit 3
· Repaired seized MSCV stem for Unit 3
· CV cross head for Unit 3
· Repaired MSV stem pin hole for Unit 3
· Removed N1 and N3 packing casings for Unit 3
· Repaired CV disc assembly for Unit 3
· Removed MSV stem and MSV disc assembly for Unit 3
· Manufactured and repaired actuator valve nuts for MSV, RSV, and IV in Unit 3
· Manufactured MSCV spacers for Units 1 and 3
· Machined RSV stem nuts and pins for Units 3 and 4
· Manufactured and installed MSCVs for Units 2 to 4
· Replaced MSCV seats for main steam valves in Units 2 to 4
· Repaired cracks in the internal area of 3CC HRSG HP BCP for Units 3 and 4
· Removed MCV stem assembly for Unit 4

KOSPO Shin Incheon Power Division

· Maintained HIP and LP Diaphragms for Units 1 to 4
· Repaired damage on HIP Rotor Blade for Unit 1
· Manufactured N2 Packing Casing Gibs and Shims for Unit 1
· Overhauled CRV Strainer for Unit 2
· Replaced Support Bars N1 and N3 for Unit 3
· Replaced Zero Seal in N2 Packing Box for Unit 3
· Maintained N2 Packing Casing for Unit 3
· Maintained HIP TBN Casing for Unit 3
· Manufactured T-2 & T-3 Strainers for Unit 3
· Manufactured and installed CRV assemblies for Units 1 to 4
· Installed “Y” on Main & Reheat Steam Line for Units 1 to 4
· Installed Packing Box Support and Stoper B for Unit 4
· Replaced Zero Seal on N2 Packing for Unit 4
· Manufactured and installed MSCVs for Units 2 to 4
· Maintained CV Stem and Cross Head Ass'y for Unit 4
· Maintained MSCV-A and B Upper HEAD Bushings for Unit 4
· Replaced MSCV Balance Chamber for Unit 4
· Repaired stuck area on MSCV Stem for Unit 4
· Overhauled RSV Stem & Disc Ass'y for Unit 4
· Performed casing maintenance for GT Units 3 and 4

KOSPO Hadong Power Division

· Manufactured Ventilator Valve Spring for Unit 1
· Maintained Cover Gland Bushing Assembly for Unit 1
· Manufactured LPBP Gland Bushing for Unit 1
· Maintained and overhauled MSV Strainer and Bushing for Unit 1
· Manufactured and overhauled Ventilator Valve for Unit 1
· Replaced TCV Seat for Unit 1
· Manufactured Soot Blower DRN Valve Stem & Bushing for Unit 1
· Manufactured LP Guide Bushing for Unit 1
· Improved MSV Head Cover Bolt fastening for Units 1 to 6
· Manufactured Nozzle Box Shim Plate and MSV#2 Bypass Valve for Unit 2
· Manufactured LPBP Guide Bushing for Unit 2
· Maintained damaged LPBP SV Stem, SV, CV Bonnet & Cover for Unit 2
· Performed field maintenance to remove stuck bolts on Nozzle Box for Unit 2
· Maintained BFPT-B Casing Seal Face for Unit 2
· Maintained damaged LP A,B Casing Flange surfaces for Unit 2
· Manufactured MSV#2 Stud Bolt and Gland Bushing for Unit 2
· Manufactured and replaced BFPT HPCV Bushing for Unit 2
· Replaced Disc Bushing and manufactured Main Steam Valve parts for Unit 2
· Maintained damaged LP A,B Inner Casing Flange surfaces for Unit 3
· Maintained stuck bolts on HIP Casing for Unit 3
· Maintained eroded areas of HIP Casing (U/H & L/H) for Unit 3
· Maintained LP Inner Casing Shield Cover Bolt Hole for Unit 3
· Manufactured Grove Valve Bonnet Bush for Unit 3
· Manufactured HP Control Valve Stem & Disc Ass'y for Unit 3
· Overhauled BFPT Diaphragm for Units 3 to 7
· Manufactured Main Steam Valve parts for Units 3 to 5
· Overhauled MSV#2 Disc Bushing for Unit 4
· Manufactured/replaced Main Steam Valve parts for Unit 4
· Overhauled LP-A Diaphragm on GE side for Unit 5
· Replaced CV Sleeve and MSV #2 Bushing for Unit 5
· Manufactured MSV #1,2 Body Bolt for Unit 5
· Maintained RSV PSH internal Bushing and Seal Ring for Unit 5
· Manufactured TBN Nozzle Box Snout Ring for Unit 5
· Maintained LP Inner Casing Shield Cover Bolt Hole for Unit 5
· Manufactured Piston Ring for Units 3 and 5
· Maintained eroded HIP Inner Casing for Unit 5
· Maintained stuck bolts for Units 5 to 8
· Overhauled L-1 Stage Diaphragm for Units 4 to 9
· Maintained Turning Gear for Unit 6
· Emergency repair of HIP Casing Snout Pipe and Sealing Ring for Units 7 to 8
· Overhauled Nozzle Box for Unit 7

KOSPO Samcheok Power Division

· Manufactured Balance Weight and LP Bypass Ring for Unit 1
· Manufactured HPBP Valve Stem Guide Bushing for Unit 1
· Maintained HP SV Guide Bushing & Cover for Unit 1
· Maintained LP Gland Packing Casing for Unit 1
· Repaired damaged area of IP Upper Casing for Unit 1
· Maintained MSV Coupling Spacer for Unit 1
· Maintained N2 Packing Casing for Unit 1
· Maintained Diaphragm for Unit 1
· Maintained BFP-T Vapor Extractor Hub for Unit 2
· Inspected and manufactured CV Disc & Arm, and MSV Pin hole for Unit 2
· Maintained LP Gland Packing Casing for Unit 2

KOSPO Namjeju Power Division

· Maintained ST HIP Casing, RSV RH & LH
· Repaired bolt holes of lower blade ring and HP Dummy Ring
· Repaired fractured and stuck bolts of ST Gland Packing
· Maintained Bearing Cover and Thrust Bearing Shim
· On-site maintenance of ST N1-Lower Gland Packing Casing
· Manufactured parts for MSV, GV, and RSV assemblies
· Disassembled and maintained RSV RH and GV

KOSPO Yeongnam Power Division

· Manufactured ST IPSV Spring Box, HPSV parts, and Bonnet Guide Bushing
· Manufactured parts for ST IPCV Pilot Valve
· Maintained ST CWP Assembly
· Manufactured ST HIP Casing, HIP Blade Ring, and Shield
· Disassembled and maintained ST LP1st-stage Diaphragm and Dummy Ring
· Maintained ST Blade Ring Liner
· Repaired ST LP1st-stage Groove
· Manufactured and replaced ST HPSV and HPCV parts

EWP Dangjin Power Division

· Manufactured MSV #2 Disc and Bushing for Units 1–4
· Maintained Nozzle Boxes for Units 2, 5, and 6
· Maintained Diaphragms for Units 2, 3, 6, and 8
· Maintained IV Disc and EV Bonnet Bolt for Unit 3
· Maintained LP Gland Packing Casing for Unit 3
· Maintained Snout Pipes for Units 5, 6, and 8
· Maintained MSV#2 Disc & Stem Ass'y for Unit 5
· Manufactured Main Steam Valves for Units 5 to 7
· Manufactured 11 types including Pin and Washer for Unit 5
· Maintained HIP Upper Inner/Upper Casing for Unit 6
· Maintained Nozzle Box for Unit 6
· Maintained BFPT 4th-stage Upper Diaphragm for Unit 6
· Maintained stuck bolts on HIP Outer Casing for Unit 6
· Tapped HIP Inner Casing Lower Bolt Holes for Unit 6
· Removed stuck bolts and conducted size-up work on MSV Casing for Unit 6
· Maintained Diaphragms for Units 7 and 8
· Manufactured Inner/Outer Sealing and Locking Ring for HP Casing for Unit 8
· Manufactured bolts and nuts for HIP Upper Casing for Unit 8
· Manufactured bolts and nuts for N1,3 Packing Casing for Unit 8
· Manufactured Gib Key for Nozzle Box for Unit 8
· Removed and manufactured bolts at TC Assembly area for HIP and LP Casings for Units 7 to 9

EWP Honam Power Division

· Performed blasting and bonnet maintenance on ST MSV Strainer for Unit 6

EWP Ulsan Power Division

· Removed and maintained ST Upper Diaphragm for Unit 3
· Replaced ST HPCV Pilot Valve for Unit 3
· Replaced ST HPSV Bonnet Lower Bushing for Unit 4

EWP Ilsan Power Division

· Repaired crack in ST LP Diaphragm
· Maintained ST 2CC HPCV

EWP Donghae Bio Power Division

· Supplied spare parts for circulating water pump maintenance for ST Units 1 and 2
· Maintained ST CWP and COP for Units 1 and 2

EWP Donghae Power Division

· Removed and maintained ST CWP spider, shaft, and related components for Units 1 and 2

EWP Pyeongtaek Power Division

· Removed and maintained ST PSV bearing support
· Manufactured ST A01 bearing

Korea Hydro & Nuclear Power

Korea Hydro & Nuclear Power Co., Ltd. Hanbit Nuclear Power Plant

· Maintained sealing area of HP Outer Cylinder for Unit 1
· Maintained Gland-Seal Ring Retainer of LP Turbine A for Unit 1
· Maintained Diaphragm of Main Feed Water Pump (MFWP) for Unit 1
· Developed WPS for MFWP Turbine Diaphragm for Unit 1
· Removed and maintained HP Diaphragm for Unit 1
· Removed and maintained MFWP Casing & Diaphragm for Unit 1
· Maintained GSE141F1 filter assembly surface for Units 1 and 3
· Removed and maintained Rotor Stand for Units 1 and 4
· Maintained Upper Head of LP combined intermediate valve for Units 3 and 4
· Manufactured and installed vibration/stress test equipment for LP turbine final stage blades
· Manufactured MOP Seal & Wear Ring for turbine
· Maintained plug and seat ring for FC-UV008
· Maintained high-pressure control valve of main feedwater turbine
· Maintained LP Gland Seal Ring Retainer
· On-site maintenance of GE-side Lower Diaphragm in Unit 6 LP-C
· Removed and maintained Main Pump Diaphragm & Nozzle Box for Unit 6

Korea Hydro & Nuclear Power Co., Ltd. Kori Nuclear Power Plant

· Manufactured HP Casing Seal Key and Spring for Unit 3

Korea Hydro & Nuclear Power Co., Ltd. Hanul Nuclear Power Plant

· Maintained and disassembled ST Rotor Stand for Units 1 and 2
· Maintained LP “A” Diaphragm for Unit 4
· Disassembled Main Pump Casing & Diaphragm for Units 5 and 6

GE

· Maintained HP 1st stage Bucket Root pin for Hanbit Unit #1
· Disassembled HIP Casing and maintained MSV/CV Seat for POSCO Pohang Units 5–6
· Maintained MSV Header for POSCO Pohang Unit 5
· Disassembled HP & LP Upper/Lower Casing for POSCO Pohang Units 7–8
· Manufactured fixing Bolts & Nuts for ST Boring Machine at POSCO Pohang Unit 8
· Replaced ST CV Seat for POSCO Pohang Unit 8
· Adjusted Packing Head of ST1 at POSCO Pohang
· Repaired crack on ST HP Lower Casing at POSCO Pohang
· Supplied 5 types of consumable welding materials for POSCO Pohang

POSCO Co., Ltd.

POSCO Co., Ltd. Gwangyang Steel Works

· Disassembled ST MSV
· Disassembled ST MSV, GV, and MSCV Upper Head for Unit 1
· Manufactured MSV and GV Valve components for Units 1–8
· Disassembled MSV and GV Valves for Units 1, 3, and 4 (By-product Gas Power)
· Repaired HP Upper Casing crack and H/J surface for Unit 1
· Manufactured and maintained boiler safety valve Disc
· Localized development of ST IP 1st & 2nd Blade
· Disassembled ST TBN Diaphragm
· Disassembled ST MSV Stem & Disc Ass'y and Strainer
· Maintained ST TBN Diaphragm & Rotor
· Disassembled ST 2CDQ Steam Turbine rotating blades
· Manufactured L.O Pump Guide and Seal Ring
· Manufactured RSV Disc and other components for Unit 2
· Restored main steam valve performance for Units 2–4
· Disassembled MSV Bonnet of main steam valve for Units 2, 5–8
· Replaced MSV Seat on main steam valve for Unit 6
· Maintained ST HP Casing Bolts for Unit 7

Siemens

SK Hynix Icheon Power Plant

· Disassembled ST HIP Outer Casing
· Maintained ST Sealing Segment

SK Hynix Cheongju Power Plant

· Disassembled ST HIP Outer Casing (Lower & Upper)
· Maintained ST Seal Ring Segment
· Maintained Lower Nozzle of ST HIP Outer Casing
· Repaired ST Rotor
· Maintained ST HIP Inner Casing, L-Ring & Thread Ring

SK Hynix Yeoju Power Plant

· Disassembled ST HIP Outer Casing (Lower & Upper)
· Maintained ST Sealing Segment

Gwangyang SK E&S

· Disassembled ST IP, HIP Diaphragm, and Gland Packing for maintenance
· Maintained ST MCV & CRV Valve Seat
· Manufactured internal parts for ST CMV and CRV
· Maintained ST CMV and CRV Seat and Upper Head
· Disassembled ST Rotor Support Block and Gland Packing
· Replaced ST RSV Actuator Union
· Replaced ST CMV-A Sealing Ring
· Maintained ST HP Diaphragm

Dongducheon Dream Power Co., Ltd.

· Reconditioned 2nd-stage Rotor Assy of fuel gas compressor
· Manufactured main steam valve parts for ST Units 1 and 2
· Manufactured ST IPSV Bushing, LVDT LOD, COP Impeller Balancing, and Hex Nuts for Unit 1
· Repaired erosion damage on IPCV Seat (Blocks 1 and 2) for ST Units 1 and 2
· Maintained and replaced ST HPSV and IPCV Bushing for Unit 2
· Manufactured ST FGC Main Shaft Assy and reconditioned outer housing of gearbox for Unit 2
· Fabricated jig for disassembly of multistage pressure reducing valve
· Balanced Stage 1 Rotor of ST FGC
· Maintained ST IPCV Valve Disc
· Disassembled ST COP and CWP for maintenance

Pocheon Power

· Machined the steam inlet pipe face of HP casing for ST Unit 1
· Planned B/L maintenance for Unit 2 (including Tad Stud Bolts)
· Maintained ST Bypass Ventilator Valve for Unit 2
· Manufactured spare parts for ST MSCV & BVV maintenance on Unit 2

GS Pocheon Green Energy

· ST HPCV Seat Manufacturing and Assembly
· ST LP Rotor Stand Manufacturing

Korea Electric Power Corporation Research Institute

· Rotor Bending Correction Device Process Development
· Bucket Cover Welding Validation Testing and Demonstration Bucket Cover Welding Maintenance Technology Development
· ST Spin Tester Manufacturing

KEPCO KPS Co., Ltd.

· Sudan KNPS #3,4 S/T Carrier Maintenance

GS Donghae Power Co., Ltd.

· Manufactured HPU oil transfer tank
· Manufactured and maintained ST CWP shaft & impeller
· Constructed ST CWP-D motor pedestal
· Maintained ST CV & OLV components
· Removed stuck bolts on ST
· Corrected shaft bending on small hydro turbine
· Maintained ST CVP heat exchanger
· Manufactured and replaced ST CWP impeller ring
· Overhauled ST butterfly valve

Suwan Energy

· ST MSV, GOV Removal Maintenance
· ST HP Casing Removal Maintenance
· ST GV Piston Ring Manufacturing

GS Power Anyang

· Manufactured and maintained ST MSV & CV components
· Machined ST IP casing pin hole and overhauled packing casing

Goseong GGP

· Removed and re-tapped stuck bolts of ST Unit 1
· Maintained stuck bolts on ST Unit 2 NO.3 Bearing Cover

Daeryun Power Co., Ltd.

· Generator Maintenance Equipment (Rotor Stand, etc.) Manufacturing
· ST MSV Stem & Nut Pin Hole Maintenance
· ST Main Steam Valve Internal Part Components Manufacturing

CGN Yulchon Power

· ST HPSV Bushing Manufacturing Replacement Maintenance, etc.

Seoul Energy Corporation (Nowon Cogeneration)

· ST Bolt Manufacturing

Lotte Chemical Co., Ltd. Daesan

· A105-JDT Turbine Rotor Maintenance
· A105-JDT Turbine Shaft Manufacturing
· NC 108-JAT Turbine Rotor Maintenance

BHI(POSCO Pohang#7)

· Maintained ST LP Casing V/J surface for POSCO Pohang Unit 7

Hyundai Engineering & Construction Co., Ltd.

· Vietnam Mong Duong 2 HIP TBN Casing Stuck Bolt Maintenance

Hyundai Heavy Industries Co., Ltd.

· Turbine Generator Overhaul Maintenance

Daedong IM Co., Ltd.

· Sudan KNPS PH1 TBN Last Blade Manufacturing

Busan Fashion Center

· Turbine Rotor & Carrier Blade New Manufacturing and Replacement
· Gear Unit Maintenance

Byeollae Energy

· ST HP 3rd Stage Blade and Diaphragm Maintenance

Korea Plant Service

· Performed ST HIP Rotor Blanding for Rabigh Unit 2

Gimhae Incineration Plant

· Manufactured ST Turbine Blade & Disc

GEO MYEONG POWER.CO., LTD.

Performance

Business Performance