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15.4 MUELLER ® METER BARS - FEATURES Shaded area indicates change Rev. 12-06 Mueller Meter Bars are available in sizes 3/4" to 1-1/2" for line services of 175 psi (1206 kPa). The bodies are constructed of strong, one-piece I-beam malleable iron machined for accurate dimenions and relationships between inlet, outlet, and centers. These complete meter bars are available with a choice of end connections including direct, insulated internal NPT (FIP) and insulated external NPT (MIP). Mueller Meter Bars Features ❏ THREADS – confrom to ANSI B1.20.1. ❏ MAXIMUM WORKING PRESSURE – rated at 175 psig (1206 kPa). ❏ CENTER STABILIZING HOLE – for easy, one-screw at- tachment of brackets which stabilize the entire meter set. ❏ TAPPED & THREADED – 3/4", 1", 1-1/4" OR 1-1/2" NPT swivels.

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MUELLER ® WEDGESEAL ® INSULATED UNIONS - FEATURES Rev. 12-06 Shaded area indicates changes 15.5 MUELLER Wedgeseal Unions are available in sizes 3/4" to 1-1/4" for line services of 175 psig (1206 kPa). They are available in insulated or non-insulated models, full and 2/3 types, four different male/female thread-end configurations, and choice of controlled compression O-Ring seal or the traditional flat gasket seal. From design, through precision machining and molding of quality parts, to final assembly, Mueller WEDGESEAL ® Insulated Unions are designed to prevent electrolytic corrosion caused by stray or induced currents in piping installations. Sections of piping are electrically separated or isolated by means of an unusually strong, black virgin nylon insulator that will not creep under piping stresses. Mueller Wedgeseal Insulated Union Features 2/3-Type Full-Type ❏ STRONG, BLACK VIRGIN NYLON INSULATOR ❏ THREADS conform to ANSI B1.20.1 ❏ MAXIMUM WORKING PRESSURE – 175 psig (1206 kPa) ❏ WITHSTANDS OVER 4,000 VOLTS BEFORE ARCING OCCURS ❏ O-RING SEAL – confined in a counterbore; compression is controlled to assure a good seal without crushing

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