FIGURE 602 BLACK NUT, ORANGE SUBS
Figure 602. 6000-psi NSCWP unions are available in 1, 1-1/4, 1-1/2, 2, 3, 4 and 5-inch sizes in standard or sour gas service.
(NSCWP - Non-Shock Cold Working Pressure)
These unions feature a resilient nitrile seal ring that helps sealing and protects the steel-to-steel seating of the union. Recommended for manifold and truck-mounting where size and weight are critical. Fig.602 unions are also available as non-pressure seal unions and in butt-weld Sch.80, Sch.160 and XXH, 4" API 8 round threaded ends.