N.Y.C. Admin. Code § MC 1302: Section MC 1302: Material

1302.1 General.

Piping materials shall conform to the ASTM standards cited in this section.

1302.2 Rated for system.

All materials shall be rated for the operating temperatures and pressures of the system, and shall be compatible with the type of liquid being handled by the system.

1302.3 Pipe standards.

Fuel-oil pipe shall comply with Sections 1302.3.1 and 1302.3.2.

Table 1302.3

Fuel Oil Piping

Material

Standard (see Chapter 15)

Copper, brass, or copper-alloy pipe

ASTM B 42; ASTM B 43; ASTM B 302

Copper or copper-alloy tubing (Type K, or L (PVC coated))

ASTM B 75; ASTM B 88;ASTM B 280

Nonmetallic pipe

ASTM D 2996

Flexible pipe systems

(See Section 1302.9)

Steel pipe

ASTM A 53M; ASTM A 106

Steel tubing

a

ASTM A 254

a. Steel tubing shall only be permitted when installed by the equipment manufacturer in accordance with UL 2200 and UL labeled.

Fuel-oil pipe shall comply with the standards listed in Table 1302.3.

1302.3.2 Systems serving appliances above ground above the lowest floor.

Piping for fuel-oil systems utilizing a transfer pump to appliances at levels above ground above the lowest floor or to storage tanks at levels above the lowest floor in buildings shall comply with the requirements of Section 1305.9.5.

1302.4 Nonmetallic pipe.

Nonmetallic pipe shall be listed and labeled as being acceptable for the intended application for flammable and combustible liquids. Nonmetallic pipe shall be installed only outside, underground.

1302.5 Fittings and valves.

Fittings and valves for the piping systems shall be compatible with, or shall be of the same material as, the pipe or tubing, and shall conform with Table 1302.5.

Table 1302.5 Pipe Fittings

Material

Standard

Copper, brass, and copper alloys

ASME B16.15; ASME B16.18; ASME B16.22; ASME B16.24

Labeled pipe

In accordance with the piping system label and Section 1302.4

Nonmetallic pipe fittings

In accordance with the piping system label and Section 1302.4

Flexible pipe systems

Fittings are allowed in the FO pump room and in the room where the appliance served is located. Intermediate fittings are not allowed inside the buildings.

Steel

ASME B16.5; ASME B16.9; ASME B16.11; ASME B16.28; ASTM A 53/A 53M; ASTM A 106; ASTM A 234; ASTM A 420

Pipe shall be suitable for bending and shall conform with Table 1302.3. Pipe bends shall be made with approved equipment. The bend shall not exceed the structural limitations of the pipe.

1302.7 Pumps.

Pumps that are not part of an appliance shall be of a positive-displacement type. The pump shall automatically shut off the supply when not in operation.

1302.8 Flexible connectors and hoses.

Flexible metal connectors and hoses used where rigid connections are impractical or to reduce the effect of jarring and vibration shall be listed and labeled in accordance with UL 2039 and shall be installed in compliance with its label and the manufacturer's installation instructions and shall not exceed 18 inches (457.2 mm). Connectors made from combustible materials shall not be used inside buildings or above ground outside of buildings.

1302.9 Flexible fuel-oil piping systems with continuous vacuum leak detection.

Flexible fuel-oil piping systems with continuous vacuum leak detection consisting of a single wall or double wall metallic primary carrier encased with outer polymer jacket shall comply with the requirements of Sections 1302.9.1 through 1302.9.2.

1302.9.1 Listing.

Flexible fuel-oil piping systems with continuous leak detection shall be listed and labeled in accordance with UL 1369.

1302.9.2 Design and installation.

Flexible fuel-oil piping systems with continuous leak detection shall comply with the requirements of Sections 1302.9.2.1 through 1302.9.2.6.

1302.9.2.1 Installation.

Flexible fuel-oil piping systems shall be designed and installed in accordance with this code, manufacturer's recommendation, and their listing.

1302.9.2.2 Outdoor applications.

Flexible fuel-oil piping systems with continuous vacuum leak detection may be used for above ground outdoor applications, if such systems are double metallic piping with polymer protective cover for exterior exposure to the elements. A fire-resistance-rated enclosure shall not be required for such applications.

1302.9.2.3 Continuous pipe run.

Flexible fuel-oil piping systems shall be installed with a single continuous pipe run from the transfer pump to the appliance or storage tank it serves. Intermediate couplings are not allowed within buildings.

1302.9.2.4 Levels above the lowest floor.

Where installed above ground, flexible fuel-oil piping systems connecting a transfer pump to equipment at levels above the lowest floor or storage tanks at levels above the lowest floor in buildings shall also comply with the requirements of Section 1305.9.

1302.9.2.5. Horizontal offsets.

Horizontal offsets shall comply with Section 1305.9.3.

1302.9.2.6 Leak detection and alarm.

Flexible fuel-oil piping systems shall be installed with continuous vacuum leak detection and alarm. The alarm shall sound and the transfer pump shall stop when a leak is detected. The alarm shall be connected to a local audible alarm and to a remote alarm located at a supervising station. The wiring shall comply with the New York City Electrical Code.