NA51

Serviceable Flow Check Valve (low lead)

Description: 

Dual unions.
Stainless body, low lead brass or copper tailpieces.
Used in domestic hot water and hydronic applications.

NBR, POM check valve.

Max percentage of glycol:  50%
Max working pressure:  150 psi
Temp range:  32° - 150°F (190°F for max 1 hour)
Opening pressure differential:  0.25 psi (½" through 1¼”); 0.50 psi (1½”, 2")

Compliance with the following standard:
     NSF/ANSI 372 - Drinking Water System Components - Lead Content

Downloads

Drawings: 

Check Valve Assemblies

code description Cv weight
(lbs)
NA51200 1" G without fittings 17 0.2
NA51240 ½” MNPT 17 0.4
NA51243 ½” FNPT 17 0.4
NA51246 ½” press 17 0.4
NA51247 ½”  PEX crimp 17 0.4
NA51248 ½”  PEX expansion 17 0.4
NA51249 ½” sweat 17 0.4
NA51250 ¾” MNPT 17 0.6
NA51253 ¾” FNPT 17 0.6
NA51256 ¾” press 17 0.6
NA51257 ¾” PEX crimp 17 0.6
NA51258 ¾” PEX expansion 17 0.6
NA51259 ¾” sweat 17 0.4
NA51300 1½” G without fittings 30 0.5
NA51360 1" MNPT 30 1.1
NA51363 1" FNPT 30 1.1
NA51366 1" press 30 1.1
NA51369 1" sweat 30 0.9
NA51370 1¼” MNPT  30 1.3
NA51373 1¼” FNPT 30 1.3
NA51376 1¼” press 30 1.3
NA51379 1¼” sweat 30 1.1
NA51400 2½” G without fittings 75 1.8
NA51480 1½” MNPT 75 2.6
NA51486 1½” press 75 2.6
NA51489 1½” sweat 75 2.4
NA51490 2" MNPT 75 2.6
NA51493 2" FNPT 75 2.6
NA51496 2" press 75 2.6
NA51499 2" sweat 75 2.4