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// CODE SNIPPET

Section 605 Materials, Joints and Connections

Plumbing Code 2015 of Utah > 6 Water Supply and Distribution > 605 Materials, Joints and Connections
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605.1 Soil and Ground Water

The installation of a water service or water distribution pipe shall be prohibited in soil and ground water contaminated with solvents, fuels, organic compounds or other detrimental materials causing permeation, corrosion, degradation or structural failure of the piping material. Where detrimental conditions are suspected, a chemical analysis of the soil and ground water conditions shall be required to ascertain the acceptability of the water service or water distribution piping material for the specific installation. Where detrimental conditions exist, approved alternative materials or routing shall be required.

605.2 Lead Content of Water Supply Pipe and Fittings

Pipe and pipe fittings, including valves and faucets, utilized in the water supply system shall have not more than 8-percent lead content.

605.2.1 Lead Content of Drinking Water Pipe and Fittings

Pipe, pipe fittings, joints, valves, faucets and fixture fittings utilized to supply water for drinking or cooking purposes shall comply with NSF 372 and shall have a weighted average lead content of 0.25 percent or less.

605.3 Water Service Pipe

Water service pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table 605.3. Water service pipe or tubing, installed underground and outside of the structure, shall have a working pressure rating of not less than 160 psi (1100 kPa) at 73.4°F (23°C). Where the water pressure exceeds 160 psi (1100 kPa), piping material shall have a working pressure rating not less than the highest available pressure. Water service piping materials not third-party certified for water distribution shall terminate at or before the full open valve located at the entrance to the structure. Ductile iron water service piping shall be cement mortar lined in accordance with AWWA C104.

TABLE 605.3 WATER SERVICE PIPE

MATERIAL STANDARD
Acrylonitrile butadiene styrene (ABS) plastic pipe ASTM D 1527; ASTM D 2282
Brass pipe ASTM B 43
Chlorinated polyvinyl chloride (CPVC) plastic pipe ASTM D 2846; ASTM F 441; ASTM F 442; CSA B137.6
Chlorinated polyvinyl chloride/aluminum/chlorinated polyvinyl chloride
(CPVC/AL/CPVC)
ASTM F 2855
Copper or copper-alloy pipe ASTM B 42; ASTM B 302
Copper or copper-alloy tubing (Type K, WK, L, WL, M or WM) ASTM B 75; ASTM B 88; ASTM B 251; ASTM B 447
Cross-linked polyethylene (PEX) plastic pipe and tubing ASTM F 876; ASTM F 877; AWWA C904; CSA B137.5
Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL- PEX) pipe ASTM F 1281; ASTM F 2262; CSA B137.10
Cross-linked polyethylene/aluminum/high-density polyethylene
(PEX-AL-HDPE)
ASTM F 1986
Ductile iron water pipe AWWA C151/A21.51; AWWA C115/A21.15
Galvanized steel pipe ASTM A 53
Polyethylene (PE) plastic pipe ASTM D 2239; ASTM D 3035; AWWA C901; CSA B137.11
Polyethylene (PE) plastic tubing ASTM D 2737; AWWA C901; CSA B137.1
Polyethylene/aluminum/polyethylene (PE-AL-PE) pipe ASTM F 1282; CSA B137.9
Polyethylene of raised temperature (PE-RT) plastic tubing ASTM F 2769
Polypropylene (PP) plastic pipe or tubing ASTM F 2389; CSA B137.11
Polyvinyl chloride (PVC) plastic pipe ASTM D 1785; ASTM D 2241; ASTM D 2672; CSA B137.3
Stainless steel pipe (Type 304/304L) ASTM A 312; ASTM A 778
Stainless steel pipe (Type 316/316L) ASTM A 312; ASTM A 778

605.3.1 Dual Check-Valve-Type Backflow Preventer

Dual check-valve backflow preventers installed on the water supply system shall comply with ASSE 1024 or CSA B64.6.

605.4 Water Distribution Pipe

Water distribution pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table 605.4. Hot water distribution pipe and tubing shall have a pressure rating of not less than 100 psi (690 kPa) at 180°F (82°C).

TABLE 605.4 WATER DISTRIBUTION PIPE

MATERIAL STANDARD
Brass pipe ASTM B 43
Chlorinated polyvinyl chloride (CPVC) plastic pipe and tubing ASTM D 2846; ASTM F 441; ASTM F 442; CSA B137.6
Chlorinated polyvinyl chloride/aluminum/chlorinated polyvinyl chloride
(CPVC/AL/CPVC)
ASTM F 2855
Copper or copper-alloy pipe ASTM B 42; ASTM B 302
Copper or copper-alloy tubing (Type K, WK, L, WL, M or WM) ASTM B 75; ASTM B 88; ASTM B 251; ASTM B 447
Cross-linked polyethylene (PEX) plastic tubing ASTM F 876; ASTM F 877; CSA B137.5
Cross-linked polyethylene/aluminum/cross-linked polyethylene
(PEX-AL-PEX) pipe
ASTM F 1281; ASTM F 2262; CSA B137.10
Cross-linked polyethylene/aluminum/high-density polyethylene
(PEX-AL-HDPE)
ASTM F 1986
Ductile iron pipe AWWA C151/A21.51; AWWA C115/A21.15
Galvanized steel pipe ASTM A 53
Polyethylene/aluminum/polyethylene (PE-AL-PE) composite pipe ASTM F 1282
Polyethylene of raised temperature (PE-RT) plastic tubing ASTM F 2769
Polypropylene (PP) plastic pipe or tubing ASTM F 2389; CSA B137.11
Stainless steel pipe (Type 304/304L) ASTM A 312; ASTM A 778
Stainless steel pipe (Type 316/316L) ASTM A 312; ASTM A 778

605.5 Fittings

Pipe fittings shall be approved for installation with the piping material installed and shall comply with the applicable standards listed in Table 605.5. Pipe fittings utilized in water supply systems shall also comply with NSF 61. Ductile and gray iron pipe and pipe fittings utilized in water service piping systems shall be cement mortar lined in accordance with AWWA C104.

TABLE 605.5 PIPE FITTINGS

MATERIAL STANDARD
Acrylonitrile butadiene styrene (ABS) plastic ASTM D 2468
Cast iron ASME B16.4
Chlorinated polyvinyl chloride (CPVC) plastic ASSE 1061; ASTM D 2846; ASTM F 437; ASTM F 438; ASTM F 439; CSA B137.6
Copper or copper alloy ASME B16.15; ASME B16.18; ASME B16.22; ASME B 16.26; ASME B16.51; ASSE 1061; ASTM F 1476; ASTM F 1548
Cross-linked polyethylene/aluminum/high-density polyethylene
(PEX-AL-HDPE)
ASTM F 1986
Fittings for cross-linked polyethylene (PEX) plastic tubing ASSE 1061, ASTM F 877; ASTM F 1807; ASTM F 1960;
ASTM F 2080; ASTM F 2098, ASTM F 2159; ASTM F 2434; ASTM F 2735; CSA B137.5
Fittings for polyethylene of raised temperature (PE-RT) plastic tubing ASTM F 1807; ASTM F 2098; ASTM F 2159; ASTM F 2735; ASTM F 2769
Gray iron and ductile iron ASTM F 1476; ASTM F 1548; AWWA C110/A21.10; AWWA C153/A21.53;
Insert fittings for polyethylene/aluminum/polyethylene (PE-AL-PE) and cross-linked polyethylene/aluminum/cross-linked polyethylene
(PEX-AL-PEX)
ASTM F 1974; ASTM F 1281; ASTM F 1282; CSA B137.9; CSA B137.10M
Malleable iron ASME B16.3
Metal (brass) insert fittings for
polyethylene/aluminum/polyethylene (PE-AL-PE) and cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX)
ASTM F 1974
Polyethylene (PE) plastic pipe ASTM D 2609; ASTM D 2683; ASTM D 3261; ASTM F 1055; CSA B137.1
Polypropylene (PP) plastic pipe or tubing ASTM F 2389; CSA B137.11
Polyvinyl chloride (PVC) plastic ASTM D 2464; ASTM D 2466; ASTM D 2467; CSA B137.2; CSA B137.3
Stainless steel (Type 304/304L) ASTM A 312; ASTM A 778; ASTM F 1476; ASTM F 1548
Stainless steel (Type 316/316L) ASTM A 312; ASTM A 778; ASTM F 1476; ASTM F 1548
Steel ASME B16.9; ASME B16.11; ASME B16.28; ASTM F 1476; ASTM F 1548

605.5.1 Mechanically Formed Tee Fittings

Mechanically extracted outlets shall have a height not less than three times the thickness of the branch tube wall.

605.5.1.1 Full Flow Assurance

Branch tubes shall not restrict the flow in the run tube. A dimple serving as a depth stop shall be formed in the branch tube to ensure that penetration into the collar is of the correct depth. For inspection purposes, a second dimple shall be placed 1/4 inch (6.4 mm) above the first dimple. Dimples shall be aligned with the tube run.

605.5.1.2 Brazed Joints

Mechanically formed tee fittings shall be brazed in accordance with Section 605.14.1.

605.6 Flexible Water Connectors

Flexible water connectors exposed to continuous pressure shall conform to ASME A112.18.6/CSA B125.6. Access shall be provided to all flexible water connectors.

605.7 Valves

Valves shall be compatible with the type of piping material installed in the system. Valves shall conform to one of the standards listed in Table 605.7 or shall be approved. Valves intended to supply drinking water shall meet the requirements of NSF 61.

TABLE 605.7 VALVES

MATERIAL STANDARD
Chlorinated polyvinyl chloride (CPVC) plastic ASME A112.4.14; ASME A112.18.1/CSA B125.1; ASTM F 1970; CSA B125.3
Copper or copper alloy ASME A112.4.14; ASME A112.18.1/CSA B125.1; ASME B16.34; CSA B125.3;
MSS SP-67; MSS SP-80; MSS SP-110
Cross-linked polyethylene (PEX) plastic ASME A112.4.14; ASME A112.18.1/CSA B125.1; CSA B125.3; NSF 359
Gray iron and ductile iron AWWA C500; AWWA C504; AWWA C507; MSS SP-67; MSS SP-70; MSS SP-71;
MSS SP-72; MSS SP-78
Polypropylene (PP) plastic ASME A112.4.14; ASTM F 2389
Polyvinyl chloride (PVC) plastic ASME A112.4.14; ASTM F 1970

605.8 Manufactured Pipe Nipples

Manufactured pipe nipples shall conform to one of the standards listed in Table 605.8.

TABLE 605.8 MANUFACTURED PIPE NIPPLES

MATERIAL STANDARD
Brass-, copper-, chromium-plated ASTM B 687
Steel ASTM A 733

605.9 Prohibited Joints and Connections

The following types of joints and connections shall be prohibited:

1. Cement or concrete joints.

2. Joints made with fittings not approved for the specific installation.

3. Solvent-cement joints between different types of plastic pipe.

4. Saddle-type fittings.

605.10 ABS Plastic

Joints between ABS plastic pipe and fittings shall comply with Sections 605.10.1 through 605.10.3.

605.10.1 Mechanical Joints

Mechanical joints on water pipes shall be made with an elastomeric seal conforming to ASTM D 3139. Mechanical joints shall only be installed in underground systems, unless otherwise approved. Joints shall be installed only in accordance with the manufacturer's instructions.

605.10.2 Solvent Cementing

Joint surfaces shall be clean and free from moisture. Solvent cement that conforms to ASTM D 2235 shall be applied to all joint surfaces. The joint shall be made while the cement is wet. Joints shall be made in accordance with ASTM D 2235. Solvent-cement joints shall be permitted above or below ground.

605.10.3 Threaded Joints

Threads shall conform to ASME B1.20.1. Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe. Approved thread lubricant or tape shall be applied on the male threads only.

605.11 Brass

Joints between brass pipe and fittings shall comply with Sections 605.11.1 through 605.11.4.

605.11.1 Brazed Joints

All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8.

605.11.2 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.11.3 Threaded Joints

Threads shall conform to ASME B1.20.1. Pipe-joint compound or tape shall be applied on the male threads only.

605.11.4 Welded Joints

All joint surfaces shall be cleaned. The joint shall be welded with an approved filler metal.

605.12 Gray Iron and Ductile Iron Joints

Joints for gray and ductile iron pipe and fittings shall comply with AWWA C111/A21.11 and shall be installed in accordance with the manufacturer's instructions.

605.13 Copper Pipe

Joints between copper or copper-alloy pipe and fittings shall comply with Sections 605.13.1 through 605.13.5.

605.13.1 Brazed Joints

All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8.

605.13.2 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.13.3 Solder Joints

Solder joints shall be made in accordance with ASTM B 828. Cut tube ends shall be reamed to the full inside diameter of the tube end. Joint surfaces shall be cleaned. A flux conforming to ASTM B 813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B 32. The joining of water supply piping shall be made with lead-free solder and fluxes. "Lead free" shall mean a chemical composition equal to or less than 0.2-percent lead.

605.13.4 Threaded Joints

Threads shall conform to ASME B1.20.1. Pipe-joint compound or tape shall be applied on the male threads only.

605.13.5 Welded Joints

Joint surfaces shall be cleaned. The joint shall be welded with an approved filler metal.

605.14 Copper Tubing

Joints between copper or copper-alloy tubing and fittings shall comply with Sections 605.14.1 through 605.14.5.

605.14.1 Brazed Joints

Joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8.

605.14.2 Flared Joints

Flared joints for water pipe shall be made by a tool designed for that operation.

605.14.3 Grooved and Shouldered Mechanical Joints

Grooved and shouldered mechanical joints shall comply with ASTM F 1476, shall be made with an approved elastomeric seal and shall be installed in accordance with the manufacturer's instructions. Such joints shall be exposed or concealed.

605.14.4 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.14.5 Press-Connect Joints

Press-connect joints shall conform to one of the standards listed in Table 605.5, and shall be installed in accordance with the manufacturer's instructions. Cut tube ends shall be reamed to the full inside diameter of the tube end. Joint surfaces shall be cleaned. The tube shall be fully inserted into the press-connect fitting. Press-connect joints shall be pressed with a tool certified by the manufacturer.

605.14.6 Solder Joints

Solder joints shall be made in accordance with the methods of ASTM B 828. All cut tube ends shall be reamed to the full inside diameter of the tube end. All joint surfaces shall be cleaned. A flux conforming to ASTM B 813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B 32. The joining of water supply piping shall be made with lead-free solders and fluxes. "Lead free" shall mean a chemical composition equal to or less than 0.2-percent lead.

605.15 CPVC Plastic

Joints between CPVC plastic pipe and fittings shall comply with Sections 605.15.1 through 605.15.3.

605.15.1 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.15.2 Solvent Cementing

Joint surfaces shall be clean and free from moisture. Joints shall be made in accordance with the pipe manufacturer's installation instructions. Where such instructions require that a primer be used, the primer shall be applied to the joint surfaces and a solvent cement orange in color and conforming to ASTM F 493 shall be applied to the joint surfaces. Where such instructions allow for a one-step solvent cement, yellow in color and conforming to ASTM F 493, to be used, the joint surfaces shall not require application of a primer before the solvent cement is applied. The joint shall be made while the cement is wet and in accordance with ASTM D 2846 or ASTM F 493. Solvent cemented joints shall be permitted above or below ground.

605.15.3 Threaded Joints

Threads shall conform to ASME B1.20.1. Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe, but the pressure rating of the pipe shall be reduced by 50 percent. Thread by socket molded fittings shall be permitted. Approved thread lubricant or tape shall be applied on the male threads only.

605.16 Chlorinated Polyvinyl Chloride/Aluminum/Chlorinated Polyvinyl Chloride (CPVC/AL/CPVC) Pipe and Tubing

Joints between CPVC/AL/CPVC plastic pipe or CPVC fittings shall comply with Sections 605.16.1 and 605.16.2.

605.16.1 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.16.2 Solvent Cementing

Joint surfaces shall be clean and free from moisture, and an approved primer shall be applied. Solvent cement, orange in color and conforming to ASTM F 493, shall be applied to joint surfaces. The joint shall be made while the cement is wet, and in accordance with ASTM D 2846 or ASTM F 493.Solvent cement joints shall be permitted above or below ground.

Exception: A primer is not required where all of the following conditions apply:

1. The solvent cement used is third-party certified as conforming to ASTM F 493.

2. The solvent cement used is yellow in color.

3. The solvent cement is used only for joining 1/2 inch (12.7 mm) through 2-inch-diameter (51 mm) CPVC/AL/CPVC pipe and CPVC fittings.

4. The CPVC fittings are manufactured in accordance with ASTM D 2846.

605.17 PEX Plastic

Joints between cross-linked polyethylene plastic tubing and fittings shall comply with Sections 605.17.1 and 605.17.2.

605.17.1 Flared Joints

Flared pipe ends shall be made by a tool designed for that operation.

605.17.2 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions. Fittings for cross-linked polyethylene (PEX) plastic tubing shall comply with the applicable standards listed in Table 605.5 and shall be installed in accordance with the manufacturer's instructions. PEX tubing shall be factory marked with the appropriate standards for the fittings that the PEX manufacturer specifies for use with the tubing.

605.18 Steel

Joints between galvanized steel pipe and fittings shall comply with Sections 605.18.1 through 605.18.3.

605.18.1 Threaded Joints

Threads shall conform to ASME B1.20.1. Pipe-joint compound or tape shall be applied on the male threads only.

605.18.2 Mechanical Joints

Joints shall be made with an approved elastomeric seal. Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.18.3 Grooved and Shouldered Mechanical Joints

Grooved and shouldered mechanical joints shall comply with ASTM F 1476, shall be made with an approved elastomeric seal and shall be installed in accordance with the manufacturer's instructions. Such joints shall be exposed or concealed.

605.19 PE Plastic

Joints between polyethylene plastic pipe or tubing and fittings shall comply with Sections 605.19.1 through 605.19.4.

605.19.1 Flared Joints

Flared joints shall be permitted where so indicated by the pipe manufacturer. Flared joints shall be made by a tool designed for that operation.

605.19.2 Heat-Fusion Joints

Joint surfaces shall be clean and free from moisture. All joint surfaces shall be heated to melt temperature and joined. The joint shall be undisturbed until cool. Joints shall be made in accordance with ASTM D 2657.

605.19.3 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.19.4 Installation

Polyethylene pipe shall be cut square, with a cutter designed for plastic pipe. Except were joined by heat fusion, pipe ends shall be chamfered to remove sharp edges. Kinked pipe shall not be installed. The minimum pipe bending radius shall be not less than 30 pipe diameters, or the minimum coil radius, whichever is greater. Piping shall not be bent beyond straightening of the curvature of the coil. Bends shall be prohibited within 10 pipe diameters of any fitting or valve. Stiffener inserts installed with compression-type couplings and fittings shall not extend beyond the clamp or nut of the coupling or fitting.

605.20 Polypropylene (PP) Plastic

Joints between PP plastic pipe and fittings shall comply with Section 605.20.1 or 605.20.2.

605.20.1 Heat-Fusion Joints

Heat-fusion joints for polypropylene pipe and tubing joints shall be installed with socket-type heat-fused polypropylene fittings, butt-fusion polypropylene fittings or electrofusion polypropylene fittings. Joint surfaces shall be clean and free from moisture. The joint shall be undisturbed until cool. Joints shall be made in accordance with ASTM F 2389.

605.20.2 Mechanical and Compression Sleeve Joints

Mechanical and compression sleeve joints shall be installed in accordance with the manufacturer's instructions.

605.21 Polyethylene/Aluminum/Polyethylene (PE-AL-PE) and Cross-Linked Polyethylene/Aluminum/Cross-Linked Polyethylene (PEX-AL-PEX)

Joints between PE-AL-PE or PEX-AL-PEX pipe and fittings shall comply with Section 605.21.1.

605.21.1 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions. Fittings for PE-AL-PE and PEX-AL-PEX as described in ASTM F 1974, ASTM F 1281, ASTM F 1282, CSA B137.9 and CSA B137.10 shall be installed in accordance with the manufacturer's instructions.

605.22 PVC Plastic

Joints between PVC plastic pipe and fittings shall comply with Sections 605.22.1 through 605.22.3.

605.22.1 Mechanical Joints

Mechanical joints on water pipe shall be made with an elastomeric seal conforming to ASTM D 3139. Mechanical joints shall not be installed in above-ground systems unless otherwise approved. Joints shall be installed in accordance with the manufacturer's instructions.

605.22.2 Grooved and Shouldered Mechanical Joints

Grooved and shouldered mechanical joints shall comply with ASTM F 1476, shall be made with an approved elastomeric seal and shall be installed in accordance with the manufacturer's instructions. Such joints shall be exposed or concealed.

605.22.3 Solvent Cementing

Joint surfaces shall be clean and free from moisture. A purple primer that conforms to ASTM F 656 shall be applied. Solvent cement not purple in color and conforming to ASTM D 2564 or CSA B137.3 shall be applied to all joint surfaces. The joint shall be made while the cement is wet and shall be in accordance with ASTM D 2855. Solvent-cement joints shall be permitted above or below ground.

605.22.4 Threaded Joints

Threads shall conform to ASME B1.20.1. Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe, but the pressure rating of the pipe shall be reduced by 50 percent. Thread by socket molded fittings shall be permitted. Approved thread lubricant or tape shall be applied on the male threads only.

605.23 Stainless Steel

Joints between stainless steel pipe and fittings shall comply with Sections 605.23.1 and 605.23.3.

605.23.1 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions.

605.23.2 Welded Joints

All joint surfaces shall be cleaned. The joint shall be welded autogenously or with an approved filler metal as referenced in ASTM A 312.

605.23.3 Grooved and Shouldered Mechanical Joints

Grooved and shouldered mechanical joints shall comply with ASTM F 1476, shall be made with an approved elastomeric seal and shall be installed in accordance with the manufacturer's instructions. Such joints shall be exposed or concealed.

605.24 Joints Between Different Materials

Joints between different piping materials shall be made with a mechanical joint of the compression or mechanical-sealing type, or as permitted in Sections 605.24.1, 605.24.2 and 605.24.3. Connectors or adapters shall have an elastomeric seal conforming to ASTM F 477. Joints shall be installed in accordance with the manufacturer's instructions.

605.24.1 Copper or Copper-Alloy Tubing to Galvanized Steel Pipe

Joints between copper or copper-alloy tubing and galvanized steel pipe shall be made with a brass fitting or dielectric fitting or a dielectric union conforming to ASSE 1079. The copper tubing shall be soldered to the fitting in an approved manner, and the fitting shall be screwed to the threaded pipe.

605.24.2 Plastic Pipe or Tubing to Other Piping Material

Joints between different types of plastic pipe or between plastic pipe and other piping material shall be made with approved adapters or transition fittings.

605.24.3 Stainless Steel

Joints between stainless steel and different piping materials shall be made with a mechanical joint of the compression or mechanical sealing type or a dielectric fitting or a dielectric union conforming to ASSE 1079.

605.25 PE-RT Plastic

Joints between polyethylene of raised temperature plastic tubing and fittings shall be in accordance with Section 605.25.1.

605.25.1 Mechanical Joints

Mechanical joints shall be installed in accordance with the manufacturer's instructions. Fittings for polyethylene of raised temperature plastic tubing shall comply with the applicable standards listed in Table 605.5 and shall be installed in accordance with the manufacturer's instructions. Polyethylene of raised temperature plastic tubing shall be factory marked with the applicable standards for the fittings that the manufacturer of the tubing specifies for use with the tubing.
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