ASME A112.4.14:2004 pdf free download.Manually Operated,Quarter-Turn Shutoff Valves for Use in Plumbing Systems.
2 GENERAL CONSTRUCTiON AND ASSEMBLY
2.1 General
Samples for testing to this Standard shall be randomly selected from a lot of production representative samples.
2.2 End Connections
2.2.1 Taper Pipe Threads. Metallic taper pipe threads shall be in accordance with ASME 131.20.1. I’Iastic taper pipe threads shall be in accordance with ASTM F1498.
2.2.2 Solder Connections. Solder-cup ends for copper tube connection shall be in accordance with ANSI 1316,18 or ASME 816.22.
2.2.3 Solvent Cement Connections. Socket ends for solvent-cement connection to PVC or CPVC pipe or tube shall be in accordance with ASTM D2466 (INC and CPVC), ASTM l)24o7 (PVC), ASTM D2246 and ASTM F439 (CPVC).
2.2.4 PEX Barbs Connection. Metallic barb-ends for connection to PEX tubing shall be in accordance with ASTM F1807. Plastic barb-ends for connection to PEX tubing shall be in accordance with ASTM f’2159 or ASTM F1960.
2.2.5 Flared Connection. Flared connections to copper tube shall be in accordance with ASME 1316.26.
2.2.6 Grooved End. Grooved end connections shall be in accordance with AWWA C606.
2.2.7 Other Connections. Connection methods not specified herein shall be in accordance with a nationally or internationally recognized standard.
2.3 Operation
The valve shall require 4 turn from the fully closed position to the fully opened position, or from the fully opened position to the fully closed position. The valve shall be constructed so that thy operator can visually determine that the valve is in the opened or closed position. When the valve is in the closed position, the operating lever or flow indicator shall be perpendicular to the longitudinal asis of the valve. The stem flats or indicator on the top of the stem shall indicate that the valve is in the opened or closed position when the operating device has been removed.
3 MATERIALS
The following requirenwnts pertain to materiaLs used in valve body, bonnet, end pieces, pressure-containing parts, and wetted operating parts.
3.1 Copper Alloys
Copper alloys shall be minimum 58”.. copper and meet one of the following specifications.
ASME A112.4.14:2004 pdf free download
