STATE UNIVERPROGRAM DIRECTIVES

Transcription

1 DIRECTIVE 15H-10 PIPING TYPES AND MATERIALS Issue date: September 2017 Steam & Condensate Piping Service & Location Pipe Size Pipe Material & Weight Joint Type Fitting Material Insulation Material Low Pressure Steam (15 psig or less) (*C)(*D), Schedule 40, Grade B, 2-1/2 or, Schedule 40, Grade B, Inside Tunnel, Schedule 40, Grade B,, Schedule 40, Grade B, High Pressure Steam (16 psig to 250 psig) (*C)(*D), Schedule 40, Grade B, Inside Tunnel, Schedule 40, Grade B,, Schedule 40, Grade B, Low Pressure Condensate (15 psig or less) (*C)(*D), Schedule 80, Grade B, 2-1/2 or, Schedule 80, Grade B, Inside Tunnel, Schedule 80, Grade B,, Schedule 80, Grade B, High Pressure Condensate (16 psig to 250 psig) (*C)(*D), Schedule 80, Grade B, Inside Tunnel, Schedule 80, Grade B,, Schedule 80, Grade B, (*B)(*E) Threaded or Mineral Wool w/ all service jacket Mineral Wool w/ metal jacket Mineral Wool w/ metal jacket Threaded or Mineral Wool w/ all service jacket Mineral Wool w/ metal jacket Mineral Wool w/ metal jacket Office of Pre-Construction Services - Design September 2017 Page 1

2 Hydronic Piping Hot Water Hot Water (<250 F) (*C)(*D), Schedule 40, Grade A or B, Threaded (*K) 2-1/2 or, Schedule 40, Grade A or B, Inside Tunnel, Schedule 40, Grade A or B,, Schedule 40, Grade A or B, Medium Temperature Water ( 250 F) (*C)(*D)(*F) or Tunnel, Schedule 40, Grade B,, Schedule 40, Grade B, High Temperature Water ( 350 F) (*C)(*D)(*F) or Tunnel, Schedule 40, Grade B,, Schedule 40, Grade B, (*K) Mineral Wool w/ all service jacket Pre-insulated w/ Polyurethane Foam and HDPE jacket Mineral Wool w/ metal jacket Mineral Wool w/ metal jacket Office of Pre-Construction Services - Design September 2017 Page 2

3 Hydronic Piping Chilled and Condenser Water Chilled Water (*C)(*D)(*G), Schedule 40, Grade A or B, 2-1/2 or, Schedule 40, Grade A or B, Inside Tunnel, Schedule 40, Grade A or B,, Schedule 40, Grade A or B, Condenser Water (*C)(*D)(*G)(*L), Schedule 40, Grade A or B, PVC, Schedule 40, Pressure Pipe, or Tunnel ASTM D1785, Schedule 40, Grade A or B, 2-1/2 or PVC, Schedule 40, Pressure Pipe, ASTM D1785, Schedule 40, Grade A or B, PVC, Schedule 40, Pressure Pipe, ASTM D1785 (*K) Threaded (*K) (*K) and vapor barrier and vapor barrier and vapor barrier Mineral Wool w/ all service jacket (*K) Pre-insulated w/ Polyurethane Foam and HDPE jacket Threaded (*K) Solvent PVC (*K) Solvent PVC Pre-insulated w/ Polyurethane Foam and HDPE jacket Solvent PVC Office of Pre-Construction Services - Design September 2017 Page 3

4 Fire Protection Piping Service & Location Pipe Size Pipe Material & Weight Joint Type (*B)(*E) Fire Protection (*C)(*D), Schedule 40, Grade Threaded, Wet Piping A, or System Groove Joint Dry Piping System Beneath Floor Slab or Galvanized, Schedule 40, Grade A, Ductile Iron, Class 52, Cement Lined Asphaltic Coating, AWWA C151 PVC, Schedule 40, Pressure Pipe, ASTM D1785 Threaded, or Groove Joint Mechanical Joint Lock w/ thrust blocks Bell & Spigot w/ thrust blocks Fitting Material Cast, or Ductile Iron Cast, or Ductile Iron Ductile Iron PVC Insulation Material Office of Pre-Construction Services - Design September 2017 Page 4

5 Plumbing Piping - Domestic Water, Sanitary, Storm, Waste, Vent Domestic Cold Water (*C)(*D) Beneath Floor Slab 2-1/2 or Copper, Type K, Soft Annealed Coils, Ductile Iron, Class 52, Cement Lined Asphaltic Coating, AWWA C151 PVC, Schedule 40, Pressure Pipe, ASTM D1785 Domestic Hot Water (*C)(*D) Beneath Floor Slab Copper, Type K, Drawn, Sanitary, Storm, Waste, and Vent (*C)(*D)(*L) Copper, Type DWV, ASTM B306 PVC, Schedule 40, Type DWV, ASTM D2665 or D2949 Cast Iron, Asphaltic Coating, Service Weight, ASTM A74 Copper, Type DWV, ASTM B306 Beneath Floor Slab All Sizes PVC, Schedule 40, Type DWV, ASTM D2665 or D2949 Cast Iron, Asphaltic Coating, Service Weight, ASTM A74 Cooling Coil Condensate (*L) Copper, Type DWV, ASTM B306 PVC, Schedule 40, Type DWV, ASTM D2665 or D2949 (*K) and vapor barrier (*H) Mechanical Joint Lock w/ thrust blocks Bell & Spigot w/ thrust blocks Solvent Bell & Spigot or No Hub w/ heavy duty SS clamp Ductile Iron PVC PVC Cast Iron Pre-insulated w/ Polyurethane Foam and HDPE jacket on Storm Piping Only on Storm Piping Only on Storm Piping Only Solvent PVC Bell & Spigot Cast Iron (*K) Solvent PVC & vapor barrier - OR- elastomeric & vapor barrier OR - elastomeric Office of Pre-Construction Services - Design September 2017 Page 5

6 Miscellaneous Piping Natural Gas (*C)(*D) Above Ground (*I) Fuel Oil (*C)(*D)(*L) Above Ground Direct Bury (Double Containment) Refrigerant Outside Building Compressed Air (*C) Inside or Outside Building Above Ground Inside or Outside Building Direct Bury 2-1/2 or 2-1/2 or All Sizes All Sizes All Sizes, Schedule 40, Grade A,, Schedule 40, Grade A,, Schedule 40, Grade A,, Schedule 40, Grade A, Copper, Type K, Annealed, Primary Piping w/ PE, FRP or PVC Containment Pipe, Schedule 40, Grade A, ASTM A53, Type E or S Primary Piping w/ PE, FRP or PVC Containment Pipe Copper, Type ACR, Drawn, ASTM B280 Copper, Type ACR, Drawn, ASTM B280 Copper, Type K, Soft Annealed Coils, Threaded or Malleable Iron or Brazed Brazed Flexible Elastomeric Flexible Elastomeric with PVC jacket containing UV Inhibitor (*H) Office of Pre-Construction Services - Design September 2017 Page 6

7 Laboratory Piping Medical Air, Gas & Vacuum Acid Waste (*C)(*L) Note: PP & PVDF Require Continuous Support Pipe Hangers Direct Bury (Double Containment) Quality Water (RO & DI) (*L) Note: PP & PVDF Require Continuous Support Pipe Hangers All Sizes Copper, Type L, Drawn PP (Polypropylene), ASTM F1412, Flame Retardant PVDF (Polyvinylidene Fluoride), ASTM F1673 CPVC (Chlorinated Polyvinyl Chloride), ASTM D1784 Schedule 40, NSF CW-SE Certified Borosilicate Glass, ASTM C1053 Silicon Iron, ASTM A518/A861 PP (Polypropylene), ASTM F1412, Flame Retardant PVDF (Polyvinylidene Fluoride), ASTM F1673 PP (Polypropylene), ASTM D4101 PVDF (Polyvinylidene Fluoride) ASTM D3222 Brazed Heat Fusion PP Heat Fusion PVDF Solvent, ASTM F493 SS Compression Coupling, TFE Seal Bell & Spigot & Acid Resistant Sealant CPVC Borosilicate Glass Cast Iron Heat Fusion PP Heat Fusion PVDF Electrofusion PP Electrofusion PVDF Stainless Threaded Stainless Office of Pre-Construction Services - Design September 2017 Page 7

8 FOOTNOTES: (*A) Requires Prior SUCF Approval (*B) Valve and equipment connections shall be made with unions (for threaded or soldered piping); or flanges (for welded piping). (*C) Protect piping that passes through or beneath footings or foundation walls per PCNYS. (*D) See Directive 2-3 Site Utilities for more information on site piping requirements. (*E) Weld-o-lets and thread-o-lets are permitted for steel branch connections 2 or more sizes smaller than the main. Holes for weld-o-lets and thread-o-lets shall be machined (torch cutting not acceptable). Copper branch connections shall be made with tee fittings (mechanically extracted collars not acceptable). (*F) See Directive 15H-6 High and Medium Temperature Water Systems for more information regarding medium and high temperature water systems. (*G) Insulation is not required for condenser water service. (*H) Piping beneath floor slabs shall be installed with no fittings or joints. (*I) Gas piping greater than 5 psig shall be welded regardless of size. (*J) Reserved (*K) Hot water, chilled water, domestic cold water and condenser water piping located in mechanical spaces with floor drains or outdoors may be grooved joint. (*L) Plastic piping located in air distribution plenums shall have a Flame spread index < 25 and Smoke developed index < 50 per ASTM E84, as required by the BCNYS. Office of Pre-Construction Services - Design September 2017 Page 8