FIGURE 211 GRAY NUT, BLUE SUBS
Figure 211. 2000-psi NSCWP Insulating unions are available in 2 and 3-inch sizes.
(NSCWP - Non-Shock Cold Working Pressure)
The insulated design eliminates metal to metal contact across the union, while dual abrasion resistant precision molded elastomers provide a positive seal. Recommended where electrolytic corrosion prevention is a problem, or to statically isolate sections of piping. Replacement seal kits are available to extend service of the union.