1.L00 05.05.2014 For Approval CK O REV. DATE REASON FOR ISSUE PREP. CHECKED APPROVED FOSTER WHEELER B MA DOCUMENT NUMBER ED0733A-50A10 DRS-00-VBR-TR-FWB-010 TYPE A 05.05.14 Rev. Qua. Sheet No Doc. Sign Date DERWEZE SIMPLE CYCLE POWER PLANT APPROVED SECTION / AREA Stage Sheet No Total Sheet No CHECKED - 1 7 PREPARED PIPING MATERIAL FOSTER WHEELER B MA

2. PIPING MATERIAL DRS-00-VBR-TR-FWB-010 FOSTER WHEELER B MA CONTENTS I. SCOPE II. CODES, STANDARDS AND JOB SPECIFICATIONS III. LIST OF ABBREVIATIONS IV. PIPING SPECIFICATIONS CODING V. GENERAL REQUIREMENTS VI. MINIMUM NDE REQUIREMENTS 3. PIPING MATERIAL DRS-00-VBR-TR-FWB-010 FOSTER WHEELER B MA I. SCOPE This specification covers the requirements for the design and selection of materials for above and underground pressure piping system to be installed in ALIK ENERJ Project. A. ATTACHED DOCUMENTS LIST TITLE REV. DATE REASON FOR REVISION Index of Piping Specification 0 02.05.2014 First Issue AA21 0 02.05.2014 First Issue AA51 0 02.05.2014 First Issue AA5F 0 02.05.2014 First Issue AC21 0 02.05.2014 First Issue AJ11 0 02.05.2014 First Issue AK11 0 02.05.2014 First Issue ASG1 0 02.05.2014 First Issue BA21 0 02.05.2014 First Issue BJ11 0 02.05.2014 First Issue BK11 0 02.05.2014 First Issue DA21 0 02.05.2014 First Issue II. CODES, STANDARDS AND JOB SPECIFICATIONS A. Codes and standard governing design and selection of piping system shall be basically the latest revision of: - API Stds - ANSI Code - ASME Code - EN ISO Code - ASME B31.3 - ASTM Stds. 4. PIPING MATERIAL DRS-00-VBR-TR-FWB-010 FOSTER WHEELER B MA - MSS-SP-Stds. - BS Stds. B. alik Enerji Technical Specification. C. FWB Job Specifications ED0733A -51A1-IST General Requirements for Valves ED0733A -59B9-IST General Notes for Valves ED0733A -50A10/1-IST General Requirements for Piping Material ED0733A -50A10/2-IST General Requirements for Fittings ED0733A -50A10/3-IST General Requirements for Flanges ED0733A -50A10/4-IST General Requirements for Bolting andGasket ED0733A -50A10/5-IST General Requirements for Steam Traps ED0733A -50A10/6-IST General Requirements for Y-Strainers D. Pipe Thickness Calculation Applicable allowable stress is in accordance with ASME B31.1 . III. LIST OF ABBREVIATIONS A. FLANGE FACING RF Raised face RTJ-RJ Ring type joint FF Flat face B. FITTINGS TLE Threaded large end (swage nipple) TSE Threaded small end (swage nipple) TBE Threaded both end (nipples) ISS Integral steel seat (unions) SET Threaded small end (swage nipple) TOE Threaded one end (nipples) LEB Bevel large end (swage nipple) LET Threaded large end (swage nipple) SEP Plain small end (swage nipple) C. CONNECTIONS BW-WELD Butt-weld SW-SOCW Socket weld FLGD Flanged WN Welding neck THDD-TH Threaded SCRD Threaded SO Slip-on SWTH Socket weld X THDD Female 5. PIPING MATERIAL DRS-00-VBR-TR-FWB-010 FOSTER WHEELER B MA PE Socket weld (NIPPLED) PETH Socket Weld (NIPPLED) x THDD Female D. WALL THICKNESS SCH. Schedule in acc. with ASME/ANSI B36.10 or B36.19 STD.WT Standard Weight (equals Sch. 40 up to 10) XS Extra heavy weight (equals Sch. 80 up to 8") XXS Double extra heavy weight CALC Calculated wall E. VALVE DESCRIPTION OS & Y Outside screw & Yoke IS Inside screw RS Rising stem NRS Non-rising stem UB Union bonnet BB Bolted bonnet UC Union cap SC Screwed cap BC Bolted cap CHOP Chain operator ES Extension stem RB Reduce Bore WB Welded bonnet GO Gear operated IV. PIPING SPECIFICATIONS CODING Piping specification coding are identified by a Coding System consisting of four (4) digits as follows: 1st Digit 2nd Digit 3rd Digit 4th Digit Class Material Corrosion. Allow / Non-Metallic Piping or Lining Special Requirements and/or Service A 150 A C.S. 1 C.A. 0 /0,8 mm Valves Trim B 300 B Low Temp. C.S. 2 C.A. 1,5 mm Fre Fighting Under Ground C 400 C Galvanized C.S. 5 C.A. 3,0 mm D 600 D 1 Cr Mo 9 C.A. 6,4 mm E 900 J 304 (Any Grade) F Polyurethane F 1500 K 316 (Any Grade) G 2500 L 321 (Any Grade) S Non-Metallic X Ductile Iron 6. PIPING MATERIAL DRS-00-VBR-TR-FWB-010 FOSTER WHEELER B MA V. GENERAL REQUIREMENTS A. Where YES is indicated in Piping Class Index for Stress Relief, it means that any weld shall be PWHTed including seal and attachment welds. C. Bi-metallic welds shall be avoided whenever possible. Material changes are to be made at flange connections. Bi-metallic welds are not permitted without prior written acceptance from FW. VI. MINIMUM NDE REQUIREMENTS Unless otherwise specified in the Technical Specifications, all non-destructive testing shall be carried out in accordance with the latest edition of the following standards: Castings Radiographic examination: ASTM E 446: minimum quality level 2 except for category A for which the minimum quality level shall be 3 ASTM E 186: quality levels as above ASTM E 280: quality levels as above Ultrasonic examination: ASTM A 609: minimum quality level 2 Magnetic particle examination: ASTM E 125: minimum quality levels: type I degree 0, other types degree 1 Dye penetrant examination: ASTM E 165: evaluation to be agreed upon at the inspection and the acceptability will be subject to agreement between MoE and the Contractor. Forgings Ultrasonic examination: ASTM A 388: acceptability of any recordable indication shall be at MoE's judgment. Magnetic particle examination: ASTM A 275: evaluation to be agreed upon at the inspection and the acceptability will be subject to agreement between MoE and the Contractor. Plates Ultrasonic examination: ASTM A 435 Welding The tests that shall be carried out are those indicated in the Technical Specifications. If no indication is given, the welds shall be tested according to the joint efficiency adopted in the calculations, following the indications of ASME Section VIII Table UW- 12. All welded joints assuring tightness shall be inspected or tested by magnetic particle or dye penetrant. 7. PIPING MATERIAL DRS-00-VBR-TR-FWB-010 FOSTER WHEELER B MA The following prescriptions shall apply: Radiographic Examination According to ASME Section VIII par. UW-51 and for spot examination according to ASME Section VIII par. UW-52. Ultrasonic Examination According to ASME Section VIII Appendix U. The ultrasonic examination will be considered equivalent to the radiographic examination for the purpose of the weld efficiency factor determination, provided that the following conditions are met: - All welds with indications exceeding 50% of the reference level shall be radiographed following the prescriptions of ASME Section VIII par. UW-51; not considering the above radiographs, 10% of the welds carried out in the workshop and 20% of the welds carried out at Site shall be radiographed. - Welds shall be divided into groups, according to the welding procedure and position of the welds, and in agreement with MoE. In any case, welds carried out on different materials and/or by different welders or welding machines and/or with electrodes of different quality shall not be considered as pertaining to the same group. Crossing point welds shall be 100% radiographed; also these radiographs are not included in the above percentages. All radiographic films shall become the property of the MoE. Welds performed on automatic resistance butt-welding machine shall undergo an indirect control providing sampling pieces. 8. , RAW WATER, EVAOPRATIVE COOLER WATER