CHAPTER 505 PIPING SYSTEMS - SailorBob 2.0

1 S9086-RK-STM-010. 0910-LP-107-2377 REVISION 4. NAVAL SHIPS' TECHNICAL MANUAL. CHAPTER 505. PIPING SYSTEMS . THIS CHAPTER SUPERSEDES CHAPTER 505 REVISION 3 DATED 1 DECEMBER 2006. DISTRIBUTION STATEMENT C: DISTRIBUTION AUTHORIZED TO GOVERNMENT AGEN- CIES AND THEIR CONTRACTORS: ADMINISTRATIVE AND OPERATIONAL USE. (15. APRIL 1988) OTHER REQUESTS SHALL BE REFERRED TO THE NAVAL SEA SYSTEMS . COMMAND (SEA-04L). WARNING: THIS DOCUMENT CONTAINS TECHNICAL DATA WHOSE EXPORT IS. RESTRICTED BY THE ARMS EXPORT CONTROL ACT (TITLE 22, , SEC. 2751, ET. SEQ.) OR EXECUTIVE ORDER 12470. VIOLATIONS OF THESE EXPORT LAWS ARE. SUBJECT TO SEVERE CRIMINAL PENALTIES.

2 DISSEMINATE IN ACCORDANCE WITH. PROVISIONS OF OPNAVINST , REFERENCE (JJ). DESTRUCTION NOTICE: DESTROY BY ANY METHOD THAT WILL PREVENT DISCLO- SURE OF CONTENTS OR RECONSTRUCTION OF THE DOCUMENT. PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND. 15 JAN 2008. TITLE-1 / (TITLE-2 Blank)@@FIpgtype@@TITLE@@!FIpgtype@ @@FIpgtype@@TITLE@@!FIpgtype@ TITLE-2. @@FIpgtype@@BLANK@@!FIpgtype@ S9086-RK-STM-010. REVISION RECORD. REVISION NO. DATE TITLE AND/OR BRIEF DESCRIPTION/PREPARING ACTIVITY. 4 1 JAN 2008 PARAGRAPH(S) AND TMDERS/ACNS INCORPORATED: N4523A-07-RW01, N68438-07- JB01. REVISION RECORD-1 / (REVISION RECORD-2 Blank). REVISION RECORD-2.

3 @@FIpgtype@@BLANK@@!FIpgtype@ S9086-RK-STM-010. TABLE OF CONTENTS. CHAPTER /Paragraph Page 505 PIPING SYSTEMS .. 1-1. SECTION 1 GENERAL CONSIDERATIONS .. 1-1. DEFINITIONS .. 1-1. PIPING system SAFETY PRECAUTIONS .. 1-3. GENERAL SAFETY PRECAUTIONS.. 1-3. RELATIONSHIP TO OTHER GUIDANCE DOCUMENTS.. 1-5. INSPECTIONS .. 1-5. GENERAL.. 1-5. LEAK INSPECTIONS.. 1-5. Compressed Gas SYSTEMS .. 1-5. SYSTEMS Having Spray Shields.. 1-6. EXTERNAL INSPECTION.. 1-6. Pitting and Rust.. 1-6. Wetness or Stain.. 1-7. Carbon Steel Fuel and Lube Oil PIPING .. 1-7. Copper-Nickel and Stainless Steel Fuel PIPING .. 1-9. WALL THICKNESS INSPECTION.. 1-9. Inspection Frequency.

4 1-10. Inspection Locations.. 1-10. Ultrasonic Measurement.. 1-10. DRAINS.. 1-11. SCREENS.. 1-11. INSPECTION OF COPPER PIPE AND BRONZE FITTINGS.. 1-11. INSPECTION OF BOILER BLOW PIPING .. 1-12. Overboard Discharge.. 1-12. REPLACEMENT CRITERIA AND STANDARDS .. 1-12. GENERAL.. 1-12. BOILER BLOWDOWN PIPING SYSTEMS .. 1-14. PIPING Replacement Criteria.. 1-17. Discharge PIPING Replacement.. 1-18. Pressure Vessel PIPING .. 1-19. PROPULSION BOILER SOOT BLOWER PIPING .. 1-19. 1,200 LB/IN. 2 (NOMINAL) 600 LB/IN. 2 (NOMINAL) HIGH-PRESSURE. STEAM DRAIN PIPING .. 1-19. PIPING Replacement.. 1-19. Emergency Replacement.. 1-20. Complete system Replacement.

5 1-20. AUXILIARY BOILER PIPING .. 1-20. MINIMIZE PIPING STRESSES .. 1-20. i S9086-RK-STM-010. TABLE OF CONTENTS - Continued CHAPTER /Paragraph Page HYDRAULIC TRANSIENTS.. 1-20. TEMPERATURE CHANGES.. 1-21. Avoid Sudden Temperature Changes.. 1-21. Pressure and Temperature Changes.. 1-21. WATERHAMMER IN SERVICE STEAM SYSTEMS .. 1-21. PIPING STRAINS.. 1-21. CROSS-CONNECTION VALVES BETWEEN SIDE TANKS .. 1-22. FLOATING BALL CHECK VALVES FOR FUEL TANK SOUNDING TUBES .. 1-22. REQUIREMENTS.. 1-22. DOCUMENTATION.. 1-22. INSPECTION, REPAIR, AND TEST REQUIREMENTS FOR STEAM. RECEIVERS, WET ACCUMULATORS, DRAIN RECEIVERS, AND TROUGH. WARMUP RECEIVERS .. 1-22.

6 SECTION 2 STEAM SUPPLY AND DRAINAGE SYSTEMS .. 2-1. GENERAL .. 2-1. system OPERATION.. 2-1. FASTENERS.. 2-1. STEAM system DESIGN .. 2-1. MAIN AND AUXILIARY STEAM SYSTEMS .. 2-1. IN-LINE DESUPERHEATERS.. 2-1. STEAM system WARMUP.. 2-1. IN-LINE DESUPERHEATER PROBLEMS.. 2-2. In-Line Desuperheaters.. 2-2. BOILER BLOWDOWN VALVE OPERATION.. 2-2. Blowdown Valve Location.. 2-2. Blowdown Valve Operation.. 2-2. SOOT BLOWER OPERATION.. 2-3. SHORE STEAM CONNECTIONS.. 2-3. CATAPULT STEAM system .. 2-4. STEAM DRAIN COLLECTING SYSTEMS .. 2-4. GENERAL.. 2-4. DESIGN.. 2-5. HIGH-PRESSURE STEAM DRAINAGE system .. 2-5. SERVICE STEAM DRAINAGE system .. 2-5. OIL HEATING DRAINAGE system .

7 2-5. FRESH WATER DRAIN COLLECTING system .. 2-5. CONTAMINATED DRAINAGE system .. 2-6. POTENTIAL BOILER WATER CONTAMINATION.. 2-6. SECTION 3 SEAWATER SYSTEMS .. 3-1. ii S9086-RK-STM-010. TABLE OF CONTENTS - Continued CHAPTER /Paragraph Page SEAWATER PIPING PRESERVATION .. 3-1. METALS USED IN SEAWATER SYSTEMS .. 3-1. MARINE GROWTH.. 3-1. INSPECTION.. 3-1. IDLE system LAYUP.. 3-1. WASTER PIECES .. 3-2. SPOOLS AND ZINC BOXES.. 3-2. GALVANIC CORROSION PROTECTION.. 3-2. CONSTRUCTION.. 3-2. RUBBER EXPANSION JOINTS .. 3-2. ALIGNMENT.. 3-2. INSTALLATION.. 3-2. INSPECTION.. 3-3. NEWLY INSTALLED.. 3-3. EXISTING RUBBER JOINTS.. 3-3. MEASURING.. 3-3. REPLACEMENT.

8 3-5. FIRE MAIN, SPRINKLING, AND VOID FLOODING SYSTEMS .. 3-5. GENERAL.. 3-5. SPRINKLING SYSTEMS .. 3-6. RELIEF VALVES.. 3-6. MARINE GROWTH.. 3-6. Flushing.. 3-6. Acid Cleaning.. 3-7. High-Pressure Water Jet.. 3-7. TEST OF DAMAGE CONTROL VOID FLOODING VALVES.. 3-7. FLUSHING system .. 3-7. WASHDOWN system .. 3-7. SECTION 4 PLUMBING system DRAINS .. 4-1. DECK DRAINS.. 4-1. DRAIN CLEANOUT CONNECTIONS.. 4-1. Safety Precautions.. 4-1. Above Deck Cleanout Connections.. 4-1. Other Cleanout Connections.. 4-2. Commissary and Medical Space Cleanouts.. 4-3. Access.. 4-3. Steamout Connections.. 4-3. Urinal Drains.. 4-3. PRACTICES AND PROCEDURES.. 4-3.

9 Iii S9086-RK-STM-010. TABLE OF CONTENTS - Continued CHAPTER /Paragraph Page SCALE PREVENTION.. 4-5. USING ROTARY SNAKE DEVICE.. 4-6. GENERAL.. 4-6. PRECAUTIONS.. 4-7. AIR PRESSURE PIPELINE CLEANERS.. 4-8. ACID CLEANING.. 4-8. HYDROBLAST CLEANING.. 4-9. COMBINING DRAINS.. 4-10. PLUMBING VENTS.. 4-10. SECTION 5 MATERIAL SELECTION AND REPLACEMENT .. 5-1. GENERAL .. 5-1. MATERIAL SELECTION.. 5-1. FLUID TURBULENCE.. 5-1. MATERIAL IDENTIFICATION.. 5-1. DESIGN CONDITIONS .. 5-1. ACCEPTABLE FLUID VELOCITIES .. 5-1. REPLACEMENT MATERIALS .. 5-1. GENERAL.. 5-1. NONCONFORMING REPLACEMENT MATERIALS.. 5-2. PLUGS AND ADAPTERS .. 5-2. BACKGROUND.. 5-2.

10 PLUG AND ADAPTER REQUIREMENTS.. 5-3. General.. 5-3. Inspection Requirements.. 5-3. Temporary Plugs.. 5-4. INSPECTION PROCEDURES.. 5-4. Plug and Adapter Material.. 5-4. Plug and Adapter Configuration.. 5-4. REPLACEMENT CRITERIA - ALL SHIPS.. 5-4. Material.. 5-4. Configuration.. 5-5. Locking Devices.. 5-6. REPORTING REQUIREMENTS.. 5-6. SECTION 6 METHODS OF JOINT FABRICATION .. 6-1. iv S9086-RK-STM-010. TABLE OF CONTENTS - Continued CHAPTER /Paragraph Page GENERAL .. 6-1. WELDING .. 6-1. GENERAL.. 6-1. BRAZING .. 6-1. GENERAL.. 6-1. END PREPARATION.. 6-1. SIZING.. 6-2. BRAZING METHODS.. 6-2. Alloy Insert Method.. 6-2. Face-Feed Method.. 6-2.