1318 37TH ST 2023-06-14 - Laserfiche WebLink

4 GAS PIPING INSTALLATIONS TABLE 409.1.1 MANUAL GAS VALVE STANDARDS VALVE STANDARDS APPLIANCE SHUTOFF VALVE APPLICATION UP To PRESSURE OTHER VALVE APPLICATIONS UP TO PRESSURE UP TO 2 psig PRESSURE UP TO 5 psig PRESSURE UP TO 125 psig PRESSURE ANSI Z21.15 X — - — — ASME B16.44 X X V Xb — 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. 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 serv- ing 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 identifica- tion tag attached by the installer so that the piping systems supplied by such valves are readily identified. 409.4 MP regulator valves. A listed shutoff valve shall be installed immediately ahead of each MP regulator. 409.5 Appliance shutoff valve. Each appliance shall be pro- vided with a shutoff valve in accordance with Section 409.5.1, 409.5.2 or 409.5.3. 409.5.1 Located within same room. The shutoff valve shall be located in the same room as the appliance. The shutoff valve shall be within 6 feet (1829 mm) of the appliance, and shall be installed upstream of the union, connector or quick disconnect device.it serves. Such shut- off valves shall be provided with access. Appliance shut- off valves located in the firebox of a fireplace shall be installed in accordance with the appliance manufacturer's instructions. 409.5.2 Vented decorative appliances and room heat- ers. 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 pro- vided with ready access. Such valves shall be permanently identified and shall not serve another appliance. The pip- ing from the shutoff valve to within 6 feet (1829 mm) of the appliance shall be designed, sized and installed in accordance with Sections 401 through 408. 409.5.3 Located at manifold. Where the appliance shut- off valve is installed at a manifold, such shutoff valve shall be located within 50 feet (15 240 mm) of the appliance served and shall be readily accessible and permanently identified. The piping from the manifold to within 6 feet (1829 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 pro- vided 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 labora- tory space served, located adjacent to the egress door from the space and shall be identified by approved signage stating "Gas Shutoff" SECTION 410 (IFGC) FLOW CONTROLS 410.1 Pressure regulators. A line'pressure regulator shall be installed where the appliance is designed to operate at a lower pressure than the supply pressure. Line gas pressure regulators shall be listed as complying with ANSI Z21.80. Access shall be provided to pressure regulators. Pressure reg- ulators shall be protected from physical damage. Regulators installed on the exterior of the building shall be approved for outdoor installation. 410.2 MP regulators. MP pressure regulators shall comply with the following: 1. The MP regulator shall be approved and shall be suit- able for the inlet and outlet gas pressures for the appli- cation. 2. The MP regulator shall maintain a reduced outlet pres- sure under lock -up (no -flow) conditions. 3. The capacity of the MP regulator, determined by pub- lished ratings of its manufacturer, shall be adequate to supply the appliances served. 4. The MP pressure regulator shall be provided with access. Where located indoors, the regulator shall be vented to the outdoors or shall be equipped with a leak - limiting device, in either case complying with Section 410.3. 5. A tee fitting with one opening capped or plugged shall be installed between the MP regulator and its upstream shutoff valve. Such tee fitting shall be positioned to allow connection of a pressure -measuring instrument and to serve as.a sediment trap. 6. A tee fitting with one opening capped or plugged shall be installed not less than 10 pipe diameters downstream of the MP regulator outlet. Such tee fitting shall be positioned to allow connection of a pressure -measuring instrument. 7. Where connected to rigid piping, a union shall be installed within 1 foot (304 mm) of either side of the MP regulator. 2015 INTERNATIONAL FUEL GAS CODE"