Vented Union Coupling Brass Elbow Gauge - 4 17/32in., 1/4in. Male NPTF, 1/2in. dia

Item # B1357-23, Vented Union Coupling Brass Elbow Gauge, 4 17/32 Sight Opening, 1/2 Diameter Glass, 1/4 Male NPTF Mounting ThreadVented Union Coupling Brass Elbow Gauges can be used on oil bearings, gear boxes, crank cases, transformers, switches or any application requiring visual indication of liquid level. The leak proof construction, large vent hole and unrestricted passages permit fast and accurate liquid level response .The square shank with pipe thread screws horizontally into a tapped hole. A full rotational clearance is not necessary; the union coupling is installed without rotating the entire gauge .This brass elbow gauge features a 1/2 diameter glass sight protected by a shield. The shield can be revolved to the most convenient position for viewing or taken off completely for cleaning. A protected vent hole in the cap reduces the possibility of dust, dirt, or moisture getting inside the gauge. The gauge uses only atmospheric pressure. A Teflon washer reduces friction between the cap and the glass during installation and adjustments. Buna-N seals are used. The unit tolerates temperatures up to 225° F .Union Coupling Brass Elbow Gauges can also be custom built with alternate caps. To view the optional caps, please use our product search feature .Dimensions:A Height from Center of Mounting Hole 5 7/16B Sight Opening 4 17/32C Length from Center of Tube to End of Mounting Thread 2D Length of Mounting Thread 7/16 E Length of Base 2 11/32