Abstract： ASME B16.44:2002 pdf download.MANUALLY OPERATED METALLIC GAS VALWVES FORUSE IN ABOVEGROUND PIPING SYSTEMS UP TO 5 PSI. 1.5 Quality Systems Requirements relating to the product manufactijrers Quality System Programs arc described In Nonmanda...

ASME B16.44:2002 pdf download.MANUALLY OPERATED METALLIC GAS VALWVES FORUSE IN ABOVEGROUND PIPING SYSTEMS UP TO 5 PSI.

1.5 Quality Systems

Requirements relating to the product manufactijrers Quality System Programs arc described In Nonmandatory Annex A.

1.6 UnIts

The values stated in either inch units or metric units are to be regarded separately as standard. 11w values stated in each system are not exact equivalents; therefore. each system must be used independently of the other. Combining values from the two systems

may result in nononformance with the standard.

All pressures, unless otherwise specified, are gauge pressures.

2 GENERAL CONSTRUCTION AND ASSEMBLY

2.1 General

Each valve at the time of manufachire shall be capable of meeting the requirements set forth in this Standard The workmanship

employed in the manufacture and assembly of each valve shall provide for the specified gas tightness, reliability of performance,

Ireedom from inlurious imperfections, and defects as specified herein.

2.2 End Connections

The valve body shall be provided with wrench flats at ends with tapered pipe threads,

2.3 PIpe and Tubing Connections

2.3.1 Taper Pipe Threads. Taper pipe threads, when provided, shall be in accordance with ASME Bl,20J.

2.3.2 Flare Tubing Connection, Valves with an inlet and for outlet for ‘?. or 4 O.D. tube shall be in accordance with the flare

fitting dimensions shown in Table 1. Other flare sizes shall be made per manufacturer’s standards.

2.4 Operating Head

The operating head of the valve shall be a lever, tee. fiat, or square head type. Separately attached handles.

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