... truck, pipe manifold, pipeline, other high-pressure service hammer union The Hammer Union type mainly consists of Figure 100, Figure 200, Figure ... 1003,Figure 1502 and Figure 2002.Take Figure 100 hammer union for example, the technical parameters are as following:Nominal pipe ... .Features:Pressure-tight make-up with hammer;Economical, low-pressure union Hammer Union for pipeline, cementing truck