DaimlerChryslerConstruction Standards

6/17/05

SECTION 15231 – CUTTING MACHINE COOLANT PIPING

PART 1 - GENERAL

1.1SUMMARY

  1. This Section includes piping, valves, and fittings for cutting machine coolant piping systems, and process fluids systems (lube oil, motor oil, hydraulic oil, spindle oil, washer fluid, and process water lines).
  2. Related Sections include the following:
  3. Division7 Section "Through-Penetration Fire-stop Systems" for materials and methods for sealing pipe penetrations through fire and smoke barriers.
  4. Division7 Section "Joint Sealants" for materials and methods for sealing pipe penetrations through exterior walls.
  5. Division15 Section "Hangers and Supports" for pipe supports, product descriptions, and installation requirements. Hanger and support spacing is specified in this Section.
  6. Division15 Section "Valves" for general-duty gate, globe, ball, butterfly, and check valves.
  7. Division15 Section "Meters and Gages" for thermometers, flow meters, and pressure gages.
  8. Division 15 Section “Basic Materials & Methods.

1.2SUBMITTALS

  1. Product Data: For each type of special-duty valve indicated. Include flow and pressure drop curves based on manufacturer's testing for diverting fittings, calibrated balancing valves, and automatic flow-control valves.
  2. Shop Drawings: Detail fabrication of pipe anchors, hangers, special pipe support assemblies, alignment guides, expansion joints and loops, and their attachment to the building structure. Detail location of anchors, alignment guides, and expansion joints and loops.
  3. Grooved joint couplings and fittings shall be shown on drawings and product submittals and shall be specifically identified with the applicable style or series designation.
  4. Welding Certificates: Copies of certificates for welding procedures and personnel.
  5. Field Test Reports: Written reports of tests specified in Part3 of this Section. Include the following:
  6. Test procedures used.
  7. Test results that comply with requirements.
  8. Failed test results and corrective action taken to achieve requirements.
  9. Maintenance Data: For special-duty valves to include in maintenance manuals.

1.3QUALITY ASSURANCE

  1. Welding: Qualify processes and operators according to the ASME Boiler and Pressure Vessel Code: SectionIX, "Welding and Brazing Qualifications."
  2. All grooved joint couplings, fittings, valves, and specialties of a contractshall be the products of a single manufacturer. Grooving tools shall be of the same manufacturer as the grooved components.
  3. ASME Compliance: Comply with ASMEB31.9, "Building Services Piping," for materials, products, and installation. Safety valves and pressure vessels shall bear the appropriate ASME label.

Verify with the grooved mechanical joint coupling manufacturer that each gasket is compatible with the specific fluids conveyed by the piping.

1.4COORDINATION

  1. Coordinate layout and installation of machine coolant piping and suspension system components with other construction, including light fixtures, HVAC equipment, fire-suppression-system components, and partition assemblies.
  2. Coordinate pipe sleeve installations for foundation wall penetrations.
  3. Coordinate pipe fitting pressure classes with products specified in related Sections.

PART 2 - PRODUCTS

2.1MANUFACTURERS

  1. Manufacturers: Unless otherwise directed by the Owner, provide products by one of the following:
  2. Grooved Mechanical-Joint Fittings and Couplings:

a. Victaulic Company of America.

  1. Calibrated Balancing Valves:
  2. Armstrong Pumps, Inc.
  3. Flow Design, Inc.
  4. Gerand Engineering Company.
  5. Griswold Controls.
  6. ITT Bell & Gossett; ITT Fluid Technology Corp.
  7. Taco, Inc.
  8. Victaulic Company of America/TA Hydronics.
  9. Safety Valves:
  10. Amtrol, Inc.
  11. Armstrong Pumps, Inc.
  12. Conbraco Industries, Inc.
  13. ITT McDonnell & Miller Div.; ITT Fluid Technology Corp.
  14. Kunkle Valve Division.
  15. Spence Engineering Company, Inc.

2.2PIPING MATERIALS

  1. General: Refer to Part3 "Piping Applications" Article for applications of pipe and fitting materials.

2.3COPPER TUBE AND FITTINGS

  1. Drawn-Temper Copper Tubing: ASTMB88, TypeL.
  2. Annealed-Temper Copper Tubing: ASTMB88, TypeK
  3. Wrought-Copper Fittings: ASMEB16.22.
  1. Grooved Mechanical-Joint Fittings: ASME B16.18 cast-copper-alloy or ASME B16.22 wrought-copper with dimensions matching copper tubing and grooves designed to accept grooved end couplings. (Flaring of tube or fitting ends to IPS sizes is not permitted.) Victaulic ‘CTS’or equal.
  2. Grooved Mechanical-Joint Couplings: Ductile-iron housing, coated with copper colored alkyd enamel, and FlushSeal® synthetic rubber gasket of central cavity pressure-responsive design; with zinc electroplated nuts and bolts, to secure grooved pipe and fittings. Victaulic Style 606orequal.
  3. Wrought-Copper Unions: ASMEB16.22.
  4. Solder Filler Metals: ASTMB32, 95-5 tin antimony.
  5. Brazing Filler Metals: AWSA5.8, Classification BAg-1 (silver).

2.4STEEL PIPE AND FITTINGS

  1. Steel Pipe, NPS2and Smaller: ASTMA53, TypeS (seamless) or TypeF (furnace-butt welded), GradeA, Schedule40, and schedule 80, black steel, plain ends.
  2. Steel Pipe, NPS2-1/2 through NPS12: ASTMA53, TypeE (electric-resistance welded), GradeA, Schedule40, and schedule 80, black steel, plain ends.
  3. Steel Pipe, NPS14 through NPS18: ASTM A53, TypeE (electric-resistance welded) or TypeS (seamless), GradeB, Standard Weight, black steel, plain ends.
  4. Steel Pipe Nipples: ASTMA733, made of ASTMA53, Schedule40, black steel; seamless for NPS 2 inches and smaller and electric-resistance welded for NPS2-1/2 inches and larger.
  5. Malleable-Iron Threaded Fittings: ASMEB16.3, Classes150 and 300.
  6. Malleable-Iron Unions: ASMEB16.39; Classes150, 250, and 300.
  7. Cast-Iron Pipe Flanges and Flanged Fittings: ASMEB16.1, Classes25, 125, and 250; raised ground face, and bolt holes spot faced.
  8. Wrought-Steel Fittings: ASTMA234/A234M, wall thickness to match adjoining pipe.
  9. Wrought Cast- and Forged-Steel Flanges and Flanged Fittings: ASMEB16.5, including bolts, nuts, and gaskets of the following material group, end connections, and facings:
  10. Material Group: 1.1.
  11. End Connections: Butt welding.
  12. Facings: Raised face.
  13. Grooved Mechanical-Joint Fittings: ASTMA536, Grade65-45-12 ductile iron; ASTMA53, TypeF, E, or S, GradeB fabricated steel; or ASTMA234, GradeWPB steel fittings with grooves or shoulders designed to accept grooved end couplings. Sizes 14 inches through 24 inchesshall be Victaulic AGS grooved endsor equal.
  14. Grooved Mechanical-Joint Couplings: ASTM A 536, Grade 65-45-12 ductile-iron housing and synthetic rubber gasket of central cavity pressure-responsive design; with zinc electroplated nuts and bolts to secure grooved pipe and fittings.

1.Sizes through 12 inches:

a.Rigid Type: Housings cast with offsetting, angle-pattern bolt pads to provide rigidity and system support and hanging in accordance with ANSI B31.1 and B31.9. Victaulic Style 07or equal.

b.Flexible Type: Use in locations where vibration attenuation and stress relief are required. Victaulic Style 77 or equal.

2.Sizes 14 inches through 24 inches: AGS series couplings, with widened gasket and key with lead-in chamfer.

a.Rigid Type: Key designed to fill the wedge shaped AGS groove to provide a rigid joint and system support and hanging in accordance with ANSI B31.1 and B31.9. Victaulic Style W07 or equal.

b.Flexible Type: Key deigned to fit into the wedge shaped AGS groove to allow for linear and angular movement. Victaulic Style W77or equal.

  1. Flexible Connectors: Stainless-steel bellows with woven, flexible, bronze, wire-reinforcing protective jacket; 150-psigminimum working pressure and 250 degFmaximum operating temperature. Connectors shall have flanged or threaded-end connections to match equipment connected and shall be capable of 3/4-inchmisalignment.

1.Three flexible type grooved joint couplings may be used in lieu of a flexible connector at equipment connections for vibration attenuation and stress relief. Couplings shall be placed in close proximity to the source of the vibration. Victaulic Style 77 or equal.

  1. Packed, Slip, Expansion Joints: 150-psigminimum working pressure, steel pipe fitting consisting of telescoping body and slip-pipe sections, packing ring, packing, limit rods, flanged ends, and chrome-plated finish on slip-pipe telescoping section.
  2. Packless, Gasketed, Slip Expansion Joints: 350-psig maximum working pressure, grooved end fitting consisting of a telescoping carbon steel body and slip-pipe sections, coupled with grooved-mechanical joint couplings. Slip pipe section PPS coated. Suitable for axial end movement to 3”. Victaulic Style 150 or equal.
  3. Victaulic flexible coupling type expansion joints, consisting of a series of grooved end pipe nipples joined in tandem with Victaulic Style 77 flexible couplings. Total joint movement dependent on the number of couplings used in the joint. Victaulic Style 155or equal.
  4. Welding Materials: Comply with SectionII, PartC, of the ASME Boiler and Pressure Vessel Code for welding materials appropriate for wall thickness and for chemical analysis of pipe being welded.
  5. Gasket Material: Thickness, material, and type suitable for fluid to be handled; and design temperatures and pressures.

2.5STAINLESS STEEL PIPE AND FITTINGS

A.Stainless Steel Pipe: ASTM A 312, Type 304/304L, Schedule 5S, full finish annealed pipe.

1.Stainless Steel Fittings: Precision, cold drawn, austenitic stainless steel fittings with elastomer O-ring seals suitable for coolant cutting oils. Vic-Press 304™or equal.

2.For use in lieu of soldered copper or threaded steel for sizes 1/2 inches through 2 inches.

2.52.6VALVES, AIR VENTS, VACUUM BREAKERS

  1. Gate, globe, check, ball, and butterfly valves are specified in Division15 Section "Valves."
  2. Refer to Part3 "Valve Applications" Article for applications of each valve.
  3. Calibrated Balancing Valves, NPS2and Smaller: Ametal® copper alloy globe type or bronze body, ball type, 125-psigworking pressure, 250 degF maximum operating temperature, and having threaded ends. Valves shall have calibrated orifice or venturi, connections for portable differential pressure meter with integral seals, and be equipped with a memory stop to retain set position.
  4. Calibrated Balancing Valves, NPS2-1/2and Larger: Ductile-iron globe type or steel body, ball type, 125-psigworking pressure, 250 degFmaximum operating temperature, and having flanged or grooved connections. Valves shall have calibrated orifice or venturi, connections for portable differential pressure meter with integral seals, and be equipped with a memory stop to retain set position.
  5. Manual Air Vent Valve: Bronze body and nonferrous internal parts; 150-psig working pressure; 225 degF operating temperature; manually operated with screwdriver or thumbscrew; with NPS1/8 discharge connection and NPS1/2 inlet connection.
  6. Automatic Air Vent Valve: Designed to vent automatically with float principle; bronze body and nonferrous internal parts; 150-psigworking pressure; 240 degF operating temperature; with NPS1/4 discharge connection and NPS1/2 inlet connection.

Vacuum Breakers: 150 psig steam working pressure, 365 deg F maximum operating temperature, brass, cast iron, or stainless steel body and stainless steel retainer, spring, and ball; with threaded outlet.

H. Automatic shut off valves on equipment shall be “COAX” with flow control or other approved valves with slow opening and slow closing features to avoid pipe hammer.

PART 3 - EXECUTION

3.1PIPING APPLICATIONS

  1. Hot and Chilled Water, NPS2-1/2 and Smaller: Above ground, use TypeL drawn-temper copper tubing with soldered joints or stainless-steel pipe with Vic-Press 304™ or equaljoints. Belowground or within slabs, use TypeK annealed-temper copper tubing with soldered joints. Use the fewest possible joints belowground and within floor slabs.
  2. Hot and Chilled Water, NPS3 and Larger: Schedule 40 steel pipe with screwed joints, welded and flanged joints, or, grooved mechanical-joint couplings,.
  3. Condenser and Process Water, NPS2-1/2 and Smaller: Aboveground, use TypeL drawn-temper copper tubing with soldered joints or stainless-steel pipe with Vic-Press 304™ or equaljoints. Below ground or within slabs, use TypeK annealed-temper copper tubing with brazed joints.
  4. Condenser and Process Water, NPS 3 and Larger: Schedule 40 steel pipe with welded and flanged joints or grooved mechanical-joint couplings.
  5. Condensate Drain Lines: TypeL drawn-temper copper tubing with soldered joints or Schedule40, PVC pipe with solvent-welded joints.
  6. Flexible Connectors: Stainless-steel bellows with woven, flexible, bronze, wire-reinforcing protective jacket; 150-psigminimum working pressure and 250 degF maximum operating temperature. Connectors shall have flanged- or threaded-end connections to match equipment connected and shall be capable of 3/4-inchmisalignment.

1.Three flexible type grooved joint couplings may be used in lieu of a flexible connector at equipment connections for vibration attenuation and stress relief. Couplings shall be placed in close proximity to the source of the vibration. Victaulic Style 77or equal.

  1. Coolant Piping, NPS 3/4 inch through 11/2 inch: Aboveground schedule 40 steel pipe for supply, schedule 80 for return or pump back, with screwed malleable iron fittings or welded joints. Stainless-steel pipe with Vic-Press 304™ jointsmay be used in place of schedule 40threaded. Branch pipe size shall be at least as larger as the pipe connection to the equipment.
  2. Coolant Piping, NPS 2 inch through 8 Inches: Aboveground schedule 40 steel pipe for supply, schedule 80 for return or pump back, with grooved mechanical joint couplings. Branch pipe size shall be at least as large as the pipe connection to the equipment.
  3. Coolant Piping, NPS 2 inch through 10 Inches: Aboveground schedule 40 steel pipe for supply, extra strength for return or pump back, with grooved mechanical joint couplings. Branch pipe size shall be at least as large as the pipe connection to the equipment.
  4. Coolant Piping, NPS 12 Inches and Larger: Aboveground standard weight steel pipe for supply, extra strength for return or pump back, with grooved mechanical joint couplingsor welded. Branch pipe size shall be at least as large as the pipe connection to the equipment.

K.Process Fluids Piping, 3/4 Inch and Larger: Aboveground Schedule 40 steel pipe for all piping, with screwed malleable iron fittings or welded joints on piping up to and including 1-1/2 inch; or stainless-steel pipe with Vic-Press 304™ joints up to and including 2 inch; and welded, flanged or grooved mechanical joint couplings for larger pipe sizes.

3.2VALVE APPLICATIONS

  1. General-Duty Valve Applications: Unless otherwise indicated, use the following valve types:
  2. Shutoff Duty: Gate, ball, and butterfly valves.
  3. Throttling Duty: Globe, ball, and butterfly valves.
  4. Install shutoff duty valves as shown on the Drawings. Install throttling duty valves at each branch connection to flumes, at flumes to each piece of equipment, and elsewhere as indicated.
  5. Install drains and air vents consisting of a tee fitting, NPS 3/4 ball valve, and short NPS 3/4 threaded nipple with cap at low points for drains and high points for vents in piping mains, branches and headers. All mains, branches and headers shall be installed to be independently drained.
  6. Install check valves at each pump discharge and elsewhere as required to control flow direction.
  7. Install safety valves on heat exchangers and elsewhere as required by the ASME Boiler and Pressure Vessel Code. Install safety-valve discharge piping, without valves, to floor. Comply with the ASME Boiler and Pressure Vessel Code, SectionVIII, Division1, for installation requirements.
  8. Install vacuum breakers at highest point of pump back return piping. Install a safety shut off valve on the pressure/vacuum side and provide a full size vent pipe to the nearest pump back tank.

3.3PIPING INSTALLATIONS

  1. Refer to Division15 Section "Basic Mechanical Materials and Methods" for basic piping installation requirements.
  2. Install groups of pipes parallel to each other, spaced to permit applying insulation and servicing of valves.
  3. Install drains, consisting of a tee fitting, NPS3/4 ball valve, and short NPS3/4 threaded nipple with cap, at low points in piping system mains and elsewhere as required for system drainage.
  4. Install piping at a uniform grade of 0.2 percent upward in direction of flow.
  5. Reduce pipe sizes using eccentric reducer fitting installed with level side down.
  6. Unless otherwise indicated, install branch connections to mains using tee fittings in main pipe, with the takeoff coming out the bottom of the main pipe. For up-feed risers, install the takeoff coming out the top of the main pipe.
  7. Install strainers on supply side of each control valve, solenoid valve, in-line pump, and elsewhere as indicated. Install NPS3/4 nipple and ball valve in blowdown connection of strainers NPS2 and larger. Match size of strainer blowoff connection for strainers smaller than NPS2.
  8. Anchor piping for proper direction of expansion and contraction.

3.4HANGERS AND SUPPORTS

  1. Hanger, support, and anchor devices are specified in Division15 Section "Hangers and Supports." Comply with requirements below for maximum spacing of supports.
  2. Install the following pipe attachments:
  3. Adjustable steel clevis hangers for individual horizontal piping.
  4. Spring hangers to support vertical runs.
  5. Install hangers for steel piping with the following maximum spacing and minimum rod sizes:
  6. NPS3/4: Maximum span, 7 feet, minimum rod size, 1/4 inch
  7. NPS1: Maximum span, 7 feet; minimum rod size, 1/4 inch
  8. NPS1-1/2: Maximum span, 9 feet; minimum rod size, 3/8 inch
  9. NPS2: Maximum span, 10 feet; minimum rod size, 3/8 inch
  10. NPS2-1/2: Maximum span, 11 feet; minimum rod size, 3/8 inch
  11. NPS3: Maximum span, 12 feet; minimum rod size, 3/8 inch
  12. NPS4: Maximum span, 14 feet; minimum rod size, 1/2 inch
  13. NPS6: Maximum span, 17 feet; minimum rod size, 1/2 inch
  14. NPS8: Maximum span, 19 feet; minimum rod size, 5/8 inch
  15. NPS10: Maximum span, 20 feet; minimum rod size, 3/4 inch
  16. NPS12: Maximum span, 23 feet, minimum rod size, 7/8 inch
  17. NPS14: Maximum span, 25 feet; minimum rod size, 1 inch
  18. NPS16: Maximum span, 27 feet; minimum rod size, 1 inch
  19. NPS18: Maximum span, 28 feet; minimum rod size, 1-1/4 inches
  20. Install hangers for drawn-temper copper piping with the following maximum spacing and minimum rod sizes:
  21. NPS3/4: Maximum span, 5 feet; minimum rod size, 1/4 inch
  22. NPS1: Maximum span, 6 feet; minimum rod size, 1/4 inch
  23. NPS1-1/2: Maximum span, 8 feet; minimum rod size, 3/8 inch
  24. NPS2: Maximum span, 8 feet; minimum rod size, 3/8 inch
  25. NPS2-1/2: Maximum span, 9 feet; minimum rod size, 3/8 inch
  26. NPS3: Maximum span, 10 feet; minimum rod size, 3/8 inch
  27. Support vertical runs at roof, at each floor, and at 10-footintervals between floors.
  28. Pipe anchoring must follow the requirements of the A/E firm under all circumstance. Avoid placing machine piping below flooring.

3.5PIPE JOINT CONSTRUCTION