FIGURE 600 HAMMER UNION - Threaded Nominal pipe Size: 1", 2", 3", 4" Pressure Rating: 6,000 psi cwp; 9,000 psi test Connections Type: pipeline thread, tubing thread, butt-weld Component Parts: Nut, Male Sub, Female Sub, Seal Ring Sour Service Models to NACE MR-01-75 Recommended service Steam service, boiler connections, manifold, and line connections for production, drilling, and well servicing Hammer Union (Series 600 - Threaded) Features Bronze seat provides primary seal; will not rust in water services

Hammer unions are color coded to specific pressure ratings for example a figure 1502 is red and blue nut and is rated for 15,000 psi where as a figure 100 is yellow with black nut and rated for 1,000 psi. Please see below chart for complete pressure rating and color codes for each high presure hammer union availible.