The Hammer Union type mainly consists of Figure 100, Figure 200, Figure 206, Figure 300, Figure 400, Figure 600, Figure 602, Figure 1002, Figure 1003, Figure 1502 and Figure 2002, figure 2202 Hammer Union We can provide various hammer unions based on the introduced technologies from other country,including thread connection type,welding type and H2S service unions.1 6 and CWP of 1000psi 20,000psi unions are available. For easy identification,unions with different pressure ratings will be painted in different colors,and there are evident marks indicating size,connecting mode and pressure ratings. Seal rings are made of quality rubber compound which greatly enhance load-bearing capacity and sealing performance and protect connectors from erosion. Different pressures and applications have different sealing method.