Figure 100 hammer union is black nuts yellow parts. These hammer union with precision machined metal-to-metal sealing surfaces. Recommended for low-pressure manifold line connections and application in air ,water, oil and gas. Service the working pressure is not more than 1000psi. And we can be produced according to customer requirements . Feature: Pressure-tight make-up with hammer Economical low-pressure union Manifold and line connections The detail of fig100 hammer union: Working Pressure:1000PSI Size : 2â??â??-8â??â?? Union color : black nuts yellow part Material : SF