N.Y.C. Admin. Code § FGC 409: Section FGC 409: Shutoff Valves

409.1 General.

Piping systems shall be provided with shutoff valves in accordance with this section.

409.1.1 Valve approval.

Shutoff valves shall be of an approved type; shall be constructed of materials compatible with the piping; and shall comply with the standard that is applicable for the pressure and application, in accordance with Table 409.1.1.

Table 409.1.1 Manual Gas Valve Standards

Valve Standards

Appliance Shutoff Valve Application Up to 1/2 psig Pressure

Other Valve Applications

Up to 1/2 psig Pressure

Up to 2 psig Pressure

Up to 5 psig Pressure

Up to 125 psig Pressure

ANSI Z21.15/CGA 9.1

X

—

—

—

—

ASME B 16.44

X

X

X

a

X

b

—

ASME B16.33

X

X

X

X

X

For SI: 1 pound per square inch gauge = 6.895 kPa.

a. If labeled 2G.

b. If labeled 5G.

409.1.2 Prohibited locations.

Shutoff valves shall be prohibited in concealed locations and furnace plenums.

409.1.3 Access to shutoff valves.

Shutoff valves shall be located in places so as to provide access for operation and shall be installed so as to be protected from damage.

409.2 Meter valve.

Every meter shall be equipped with a shutoff valve located on the supply side of the meter. Meter valves shall be of a type approved by the utility company.

409.3 Shutoff valves for multiple-house line systems.

Where a single meter is used to supply gas to more than one building or tenant, a separate shutoff valve shall be provided for each building or tenant.

409.3.1 Multiple tenant buildings.

In multiple tenant buildings, where a common piping system is installed to supply other than individual dwelling units, shutoff valves shall be provided for each tenant. Each tenant shall have access to the shutoff valve serving that tenant's space.

409.3.2 Individual buildings.

In a common system serving more than one building, shutoff valves shall be installed outdoors at each building.

409.3.3 Identification of shutoff valves.

Each house line shutoff valve shall be plainly marked with an identification tag attached by the installer so that the piping systems supplied by such valves are readily identified. Identification shall be provided in compliance with ASME A13.1.

409.4 MP regulator valves.

An approved shutoff valve shall be installed immediately ahead of each MP regulator.

409.5 Appliance shutoff valve.

Each appliance shall be provided with a shutoff valve in accordance with Section 409.5.1 or 409.5.2.

409.5.1 Located within the same room.

The shutoff valve shall be located in the same room as the appliance. The shutoff valve shall be within 6 feet (1828.8 mm) of the appliance, and shall be installed upstream of the union, connector or quick disconnect device it serves. Such shutoff valves shall be provided with access and located not more than 60 inches (1524 mm) above the finished floor. Appliance shutoff valves located in the firebox of a fireplace shall be installed in accordance with the appliance manufacturer's instructions. Where the shutoff valve is located in the firebox, a remote shutoff valve shall also be provided.

Exception: Shutoff valves may be located more than 60 inches (1524 mm) above the finished floor where the gas connection to the appliance is more than 60 inches (1524 mm) above the finished floor.

409.5.2 Vented decorative appliances and room heaters.

Shutoff valves for vented decorative appliances, room heaters and decorative appliances for installation in vented fireplaces shall be permitted to be installed in an area remote from the appliances where such valves are provided with ready access. Such valves shall be permanently identified and shall not serve another appliance. The piping from the shutoff valve to within 6 feet (1828.8 mm) of the appliance shall be designed, sized and installed in accordance with Sections 401 through 408.

409.6 Shutoff valve for laboratories.

Where provided with two or more fuel gas outlets, including table-, bench- and hood-mounted outlets, each laboratory space in educational, research, commercial and industrial occupancies shall be provided with a single dedicated shutoff valve through which all such gas outlets shall be supplied. The dedicated shutoff valve shall be readily accessible, located within the laboratory space served, located adjacent to the egress door from the space and shall be identified by approved signage stating "Gas Shutoff."

409.7 Outside gas cut-off.

An outside gas service line valve or other outside shutoff device or method acceptable to the commissioner shall be provided in accordance with Section E.2 of Appendix E.

409.8 Riser shutoff valves.

Risers shall be equipped with an approved lockable shutoff valve. There shall be a test port installed downstream of the valve.

409.9 Branch shutoff valves.

Branches serving more than one appliance shall be equipped with an approved lockable shutoff valve. There shall be a test port installed downstream of the valve.