Abstract： ASME A112.18.1:20121 pdf download.Plumbing supply fittings. 4.4.3.2 Fittings with non-standard threads for aerators or other end point devices may be used. 4.4.4 Hand-held shower connection threads shall be 1/2-14 NPSM or lSO 228-G 1/2 B (s...

ASME A112.18.1:20121 pdf download.Plumbing supply fittings.

4.4.3.2

Fittings with non-standard threads for aerators or other end point devices may be used.

4.4.4

Hand-held shower connection threads shall be 1/2-14 NPSM or lSO 228-G 1/2 B (see lSO 228-1).4.4.5

The dimensions of supply flare connections shall be as specified in ASME B16.26.

4.4.6

The dimensions of supply compression connections shall be compatible with SAE J512.

4.4.7

The dimensions for the inlets and shank lengths of 1/2-14 NPSM rigid shanks of deck-mounted lavatoryand sink

supply fittings designed to mate with a standard 1/2 NPSM coupling nut and tailpiece or 1/2nominal size copper

water tube shall be as shown in Figures 1 and 2.

lnlets and shanks may be designed to mate with other common connections.

Note: Longer shank lengths are sometimes necessary on account of ftting orientations and countertop thickness

or materials.

4.4.8

Alternative end-threaded connections for flexible hoses and flexible components shall comply with the performance requirements of this Standard.

4.4.9

Shower heads for installation on standard shower arms shall be capable of being connected to a 1/2 NPT male thread.

4.5 Connections other than threaded connections4.5.1

The lengths and diameters of solder-joint sockets shall be as specified in ASME B16.18 or ASME B16.22 for

connections to copper tubes.This requirement shall not apply to factory-assembled parts.

4.5.2

Connections achieved by push-fit fittings, intended for use under continuous pressure, shall comply with ASSE

1061.

4.5.3

Alternative end connections for flexible hoses and flexible components shall comply with the performance

requirements of this Standard.

4.5.4

Fittings with proprietary connections for aerators or other end point devices may be used.

4.6 Accessible designs.

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