This bulkhead union meets the standards for ASME SB75, ASTM B75, has a length of 2 15/32 inch, a maximum operating pressure of 6,600 psi and is designed for the following applications: compressed natural gas, fuels, gases, hydrogen, liquids, oils, petroleum oil, steam. It has an operating temperature of 40 Degrees F to 400 Degrees F and is resistant to corrosion, gall and is made of brass. In addition, it is a straight bulkhead union, with an imperial system of measurement. Plus, it has a ¾ inc