Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦Office of Construction & Facilities Management

DATE OF THIS VERSION (new)February 1, 2024
TITLE OF DOCUMENT (new title if applicable):
33 63 00 STEAM ENERGY DISTRIBUTIONDATE OF VERSION BEING SUPERSEDED (old):
September 1, 2017
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
33 63 00 STEAM ENERGY DISTRIBUTION
SUMMARY OF CHANGES IN THIS VERSION:
1. Created 2.8 Expansion Joints from within 2.7 Expansion Loops & Bends and added Spec

Writer’s Note requiring HEFP Approvals for using expansions joints other than expansion
loops.

2. Deleted 2.7 E. Slip Type Joint and 2.9 Ball Joint expansion joints from the specifications.

Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦Office of Construction & Facilities ManagementDATE OF THIS VERSION (new)September 1, 2017
TITLE OF DOCUMENT (new title if applicable):
33 63 00 STEAM ENERGY DISTRIBUTIONDATE OF VERSION BEING SUPERSEDED (old):
August 1, 2017
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
33 63 00 STEAM ENERGY DISTRIBUTION
SUMMARY OF CHANGES IN THIS VERSION:
1.

Corrected improper reference to bolts from B8 (high strength stainless steel) to B7 (highstrength carbon steel). ASTM A193/A193M was not changed since it is the references forB7 – high strength carbon steel bolts.

Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦

Office of Construction & Facilities Management

DATE OF THIS VERSION (new)August 1, 2017
TITLE OF DOCUMENT (new title if applicable):
33 63 00 STEAM ENERGY DISTRIBUTIONDATE OF VERSION BEING SUPERSEDED (old):
June 1, 2013
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
33 63 00 STEAM ENERGY DISTRIBUTIONSUMMARY OF CHANGES IN THIS VERSION:
1.

Renumbered Par 1.1.B is now Definition.

2.

Deleted “Encasement Pipe”.

3.

Replaced “drawing” with Contract Documents in Spec Writer Note.

4.

Par 1.1.C Added HP and LP in Abbreviations.

5.

Par 1.2. Added
Section 01 00 00, GENERAL REQUIREMENTS
Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS
Section 01 91 00, GENERAL COMMISSIONING REQUIREMENTS
Section 09 91 00, PAINTING
Section 02 82 11, TRADITIONAL ASBESTOS ABATEMENT
Section 03 30 00, CAST-IN-PLACE CONCRETE
Section 05 50 00, METAL FABRICATIONSSection 13 05 41 SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURALCOMPONENTS
Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING

Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS

6.

Relocated Par 1.3 Applicable Publications.

7.

Par 1.3 Revised Spec Writer note.

8.

Par 1.3.B. Added Spec Writer Note regarding AASHTO.

9.

Par 1.3 Updated publications, added some and deleted some.

10.

Par 1.4 Submittals. Added verbiage on the number of copies, compliance, andmanufacturer’s literature, materials of construction, O&M manuals, Completed System
Readiness checklist, training plans and instructor qualifications, Bio-Based Materials, etc.

11.

Relocated Quality Assurance to Par 1.5, then revised.

12.

Relocated DELIVERY, STORAGE AND HANDLING to Par 1.6, then revised.

13.

Relocated Quality Assurance to Par 1.5, then revised.

14.

Added Par 1.9 Utility Location Services.

15.

Added Par 1.6 As-built Documentation.

16.

General: Inserted metric versions of referenced standards.

17.

General: Deleted “conduit”. Also deleted Cast iron, and copper/bronze valve bodies andfittings from the document and replaced with steel or forged steel.

18.

Deleted Paragraphs on FIBERGLASS PIPE AND FITTINGS, CONDUIT PIPING SYSTEM, LOOSE
FILL INSULATION.

19.

Par 2.2 added to spec writer notes about VA preference for tunnels instead of direct buriedpiping.

20.

Par 2.2.A. Added “factory fabricated”.

21.

General: Put metric units ahead of English units.

22.

Par 2.2.D.4. Table 1, deleted MPT-PC column as it is also mineral wool same as Delta. Alsochanged brand names into generic insulation types.

23.

Added Par 2.2.U, V, W and X.

24.

Par 2.2.CC.3. Deleted “Pumps and motors shall be capable of operating continuously
without damage when not submerged”.

25.

Par 2.2.CC.6 Added “Mount non-submerged control components in a NEMA 4 enclosure on
adjacent wall or dedicated galvanized steel support stand.”26.

Par 2.3 Tunnels, Revised Spec writer note.

27.

Par 2.5 STEAM CARRIER PIPING changed to STEAM PIPING.

28.

Par 2.5.A. deleted “Standard weight permitted for pipe sizes 12 inches (300 mm) andabove”. Added Schedule 80 option.

29.

Par 2.5.B.1. Revised.

30.

Par 2.5.B.2. Added “Use Schedule 80 pipe and fittings for threaded joints”.

31.

Par 2.6. STEAM CONDENSATE CARRIER PIPING changed to STEAM CONDENSATE PIPING.

32.

Par 2.6.B.1 and 2 Revised.

33.

Par 2.7.A. Changed “Power Piping Code” to ASME B31.1. Added “Stress analysis shall cover
all conditions under which the system can conceivably experience during its lifetime.”

34.

Par 2.8.C.4., D.4, E.5 added “flanged ends for 2” and larger pipes.”

35.

Par 2.8.F. Expansion Compensators.

36.

Par 2.8.H Revised.

37.

Added Par 2.10.A.1.d.

38.

Par 2.10.A.3. Added “Applies to condensate valves with sizes 65 mm (2-1/2 inches) andabove”.

39.

Par 2.10.A.4. Added “Applies to condensate valves with sizes 50 mm (2 inches) and under.”40.

Par 2.10.A.6. Added “Applies to steam valves with sizes 50 mm (2 inches) and under.”41.

Par 2.10.B.1 Added “Applies to steam valves with sizes 65 mm (2-1/2 inches) and above.”42.

Par 2.10.B.3 Added “Applies to condensate valves with sizes 65 mm (2-1/2 inches) andabove.”

43.

Par 2.10.B.4 Added “Applies to steam valves and condensate valves with sizes 50 mm (2inches) and under”.

44.

Par 2.10.C.1 Added “Applies to steam valves with sizes 65 mm (2-1/2 inches) and above”.

45.

Par 2.10.C.3 Added “Applies to condensate valves with sizes 65 mm (2-1/2 inches) andabove”.

46.

Par 2.10.C.4 Added “Applies to steam valves and condensate valves with sizes 50 mm (2inches) and under”.

47.

Par 2.10.D.2 Added “Applies to steam valves and condensate valves with sizes 50 mm (2inches) and under”

48.

Par 2.10.D.4 Added “Applies to steam”.

49.

Deleted Par 2.10.E, F, G.

50.

Par. 2.11.C. Added blank option for percent deviation and changed turndown ratio.

51.

Par 2.11.C Revised to read “Downstream safety valve to be sized to equal or exceed themaximum total flow capacity of the pressure reducing station.”

52.

Par 2.11.D, Re-written.

53.

Added Par 2.11.D.4 and Designer Note.

54.

Added Par 2.11.E.

55.

Rewrote 2.12.B and C.

56.

Rewrote 2.12.E. Spec Writer note.

57.

Par 2.14.A. Revised ASME reference to BPVC Section VIII.

58.

Deleted Par 2.14.C.

59.

Added Par 2.15.B.8.

60.

Par 2.15.E. changed drawings to Contract Documents and replaced pressure range tablewith new verbiage.

61.

Par 2.16.B.1 deleted union connected.

62.

Par 2.16.B.3 Added “stainless steel” and “safety”.

63.

Par 2.16. B.4.Replaced “Straight or back form except those located more than 7 feet (2100mm) above floor shall be adjustable angle” with “Adjustable angle for ease of viewing”.

64.

Par 2.16.B.5 Added “Well should be 316 stainless steel”.

65.

Par 2.17.A Added “//Refer to Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FORNON-STRUCTURAL COMPONENTS.//”.

66.

Par 2.17.B. Added Spec Writer Note.

67.

Par 2.17.D. Expanded Spec Writer note by transferring some of the text from par D to theSpec Writer note.

68.

Par 2.17.P Added “Refer to Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FORNON-STRUCTURAL COMPONENTS”.

69.

Par 2.17 Deleted Calcium Silicate insulation, Fiberglass Insulation, Rigid Closed cell, Cellularglass, Insulating and finishing cements, insulation bands and Service Jackets.

70.

Par 3.1.A Replaced “If the carrier pipe insulation has failed (disintegrated) in an existingburied piping system, but the system is otherwise sound, there is an alternative to total
replacement of injecting foam insulation into the existing system from above grade” with
“If an installation is unsatisfactory to the COR, the Contractor shall correct the installation
at no additional cost or time to the Government”.

71.

Par 3.1.D changed drawings to Contract Documents.

72.

Par 3.2.A Added “Phasing shown on drawings is an outline from which the contractor will
use to provide more details in executing the work in each phase”.

73.

Par 3.2.BA. Added “If asbestos containing materials are suspected to be present in thedemolished items not identified in the drawings to be part of the asbestos abatement, thecontractor shall secure the area, remove their personnel and refer the matter to COR

immediately for resolution. Refer to Section 02 82 11, TRADITIONAL ASBESTOSABATEMENT”.
74.

Par 3.2.E. Added “unless designated as being turned over to the owner”.

75.

Par 3.2.F. Added “facility burn permit in place and”.

76.

Deleted Par 3.3. PIPING APPLICATION.

77.

Par 3.3.A. Rewrote to read: “For field installed insulation, install piping insulation as
specified herein and/or as recommended by the manufacturer”.

78.

Par 3.3.C. Added “Provide compaction and leveling of virgin soil prior to installingbedding”.

79.

Par 3.3.D. Added Spec Writer Note.

80.

Par 3.3.D. Rewrote paragraph.

81.

Par 3.3.E. Added “cleaning, followed by” and “by COR”.

82.

Par 3.3.H changed “operating” to “design”.

83.

Par 3.3.K added “On direct buried pipes, secure”.

84.

Deleted Par 3.3.L and M.

85.

Par 3.4.A Added “manual” and 3.4.B.

86.

Par 3.5.B.2 added “methods/detail” and “loaded”.

87.

Par 3.5.D.2 rewrote to read “Where hangers cannot be adequately secured as specified,make special provisions for hanging and supporting pipe to be submitted to COR for AE
review.”

88.

General: Changed Contracting Officer’s Representative to COR.

89.

Par 3.5.F. rewrote Spec Writer Note.

90.

Par 3.5.F. added “Refer to Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NONSTRUCTURAL COMPONENTS”.

91.

Par 3.5.G.1, 3, and 4: Increased dimensions to 6”.

92.

Added Par 3.5.G.5.

93.

Par 3.6.A and B. Added “per SSPC SP-2 Standard”.

94.

Par 3.7.A deleted “oversee the”.

95.

Par 3.7.B replaced “Place system on a 6 inch (150 mm) thick sand bed and backfill on allsides with 6 inch (150 mm) thick sand as measured from outside the carrier
pipe/insulation.” with “Install per manufacturers recommendations //and as shown on
contract drawings// based on soil conditions” Also added “and cleaned”.

96.

Par 3.7.C. Added “accompanied with photo documentation of each piping with theelevation instrument reading visible”.

97.

Par 3.7.E. Added “completely remove”, “oil, coatings,” “brush, scrapers or chemicalcleaning”.

Par 3.7.H.1 Added “Format shall be in digital PDF files and hardcopy printout. Digital files can besubmitted thru email, FTP, USB stick or CD-ROM.”
98.

Deleted Par 3.4.J.

99.

Par 3.8.H deleted “and finished with pourable or split insulation, exterior jacket sleeve, andapply shrink-wrap seals”.

100. Par 3.10.B replaced “special flexible connector on each safety valve that is designed to

avoid blow-back of steam into the tunnel or manhole. Slip joint to be arranged to prevent
vent line from imposing any strain on safety valve and to prevent moisture accumulation insafety valve” with “drip pan elbow as necessary” and “flexible connector” with “drip panelbow”.
101. Par 3.10.A added “and suction” in two places. And deleted “operating point”.
102. Par 3.13.A.1. deleted fiberglass and glass cloth.
103. Par 3.13.A.2. rewrote to read “Exposed piping in walk through tunnels: Insulated withmineral wool, calcium silicate, fiberglass, or cellular glass pipe insulation, //canvass////aluminum// jacket. Condensate return piping may be insulated with mineral wool,calcium silicate, fiberglass, or cellular glass pipe insulation”.
104. Par 3.13.A.3 deleted glass cloth.
105. Par 3.13.A.4. Changed Table numbers and deleted tables from here.
106. Par 3.13.A.5.a added ”and cleaning”.
107. Par 3.13.A.5.k and l: rewrote.
108. Par 3.14.D. deleted split welding rings.
109. Par 3.14.H replaced “carrier” with “steam and condensate”.
110. Par 3.15.A. added “”, brush, scrapers and chemical cleaners” and “For carbon steel piping,use detergent to remove any oil and caustic solution to remove the mill scale”.
111. Added Par 3.15.B.
112. Par 3.16. Added “FOR UTILITY LOCATING”.
113. Par 3.17.A. deleted “plastic signs”.
114. Par 3.17.B Added “every 25 feet and at every change in direction. Label shall include flow

direction arrows”.

115. Par 3.18.A. added “tests at 1.5 times the design pressure”.
116. Par 3.18.D. deleted “high pressure”.
117. Par 3.18.E. deleted “carrier” and replaced “distribution supply” with “design”.
118. Par 3.18.E.2. added “and spring hangers”.
119. Par 3.18.E.3. changed 6 to 8 hours.
120. Par 3.18.E.4. added “or time” and changed pressure.
121. Par 3.18.F.2. rewrote to read “Test shall be with compressed air at 103 kPa (15 psig) for 24hours with pressure source disconnected and with decay in pressure not to exceed // 5% //// //. The first two hours shall not lose any pressure.”
122. Par 3.18.F.3. changed pressure.
123. Par 3.18.L.1.c added “Install relief valve set at pressure no more than one-third higher thantest pressure and replace safety valves of the appropriate pressure. Reset pressure
setpoint of all relief valves to the appropriate pressures and replace safety valves after all
tests have been completed. Contractor to provide written report of the reset with date andtime stamp for each relief valve and replacement of the safety valves.”
124. Field Quality Control Par L.1.c & d rewritten.
125. Added Par 3.18.N.
126. Added Par 3.21, 3.22, 3.23.