Hammer lock unions are available in a variety of working pressures, and with metal seals or various elastomeric seals.
Figure 200 unions are recommended where working pressures, based on non-shock cold working pressure, do not exceed 2000 psi.
They are popular for low pressure rig piping.
Nuts are ductile iron up to 2-1/2" and steel in larger sizes.
Bodies are forged steel to 4" and cast steel above 4".
Warning: Never assemble any combination of male sub, wing nut, or segments that are not absolutely positively identified and assured to be identical in figure number, size, and pressure rating as mis-matched components will result in hazardous connections that can result in catastrophic failure.
Hammer lock union components that cannot be positively identified must never be used.
Never expose standard service products to sour gas fluids.