United Brass Works 905 Long Shank Upper Fixture Overview
The United Brass Works 905 is a 1/2-inch long shank upper water gauge fixture designed for use in industrial water-level indication systems, including steam boiler and tank applications. It serves as the upper fixture in a compatible gauge glass assembly and provides the upper connection between the vessel and the sight glass used to visually monitor liquid level.
The United Brass Works 905 is rated for 250 WSP at a maximum temperature of 406°F and 400 WOG. The valve uses a rising stem configuration, which provides visible movement of the operating stem during opening and closing. United Brass Works identifies its water gauge fixture line as suitable for steam boiler applications and other installations requiring reliable visual indication of water level. United Brass Works, Inc.
A key characteristic of the Model 905 is its long shank design. This extended configuration allows the fixture to project farther from the vessel or piping connection than the short-shank versions in the same product family. The appropriate shank length should be selected according to the installation geometry, gauge glass arrangement, insulation thickness, and clearance requirements of the equipment.
The fixture uses a bronze body and a brass stem, combined with a ductile iron hand wheel for manual operation. United Brass Works also specifies brass bevel washers, packing nut, glass washer nut, an EPDM glass washer, steel hardware, and NAFG packing in the Model 905 construction. United Brass Works, Inc.
The rising-stem arrangement allows the operator to visually confirm valve movement and provides manual isolation of the gauge glass assembly when required for inspection, cleaning, or replacement. Proper operation of the upper and lower gauge fixtures is important when servicing a water gauge system because the gauge glass must be isolated from the vessel before maintenance is performed.
The United Brass Works water gauge fixture family includes multiple upper and lower configurations, including long-shank, short-shank, stop-check, ball-check, and alternative hand-wheel versions. The Model 905 is the standard long-shank upper fixture, while the 905PW provides a similar configuration with a plastic hand wheel. United Brass Works, Inc.
For complete water gauge installations, the upper fixture is paired with a compatible lower fixture, gauge glass, seals, hardware, and protective components according to the specific system configuration. Proper gauge glass length and fixture arrangement should be determined from the equipment dimensions and manufacturer requirements.
The Model 905 specification lists dimensional values of approximately 1.25 inches for dimension A, 5.15 inches for dimension B, and 4.97 inches for dimension C, with an approximate shipping weight of 0.75 lb. These dimensions can help when comparing the fixture with an existing installation or replacement component. United Brass Works, Inc.
United Brass Works also assigns CRN OCO7135.2C to the Model 905. Manufacturer documentation states that the product contains lead and is not intended for use in potable water systems. United Brass Works, Inc.
For boiler maintenance, tank level indication, or replacement of an existing upper water gauge fixture, the United Brass Works 905 provides a compact bronze valve configuration designed specifically for industrial sight-glass applications.
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