FIRE RESISTANT
VENTILATION VALVES PER NSSC DWG #804-1748192
REV. C, PRESSURE 15PSI WORK/30PSI TEST
|
FIG |
TRIM |
SIZE |
BODY |
DISC |
STEM/TAPER PINS |
SEAT |
|
641 |
360 |
2.5”– 36” R2.5-R36 |
CAST 316SS |
CAST 316SS |
UPPER-INCONEL LOWER- 17-4PH SS |
SILICONE/ INTU-MESCENT |
DIMENSIONAL DRAWING
FIRE RESISTANT VENTILATION VALVES PER NSSC DWG
804-1749103 REV.C
PRESSURE 15PSI WORK/30PSI TEST
|
FIG |
TRIM |
SIZE |
BODY |
DISC |
STEM/TAPER PINS |
SEAT |
|
661 |
360 |
7” x 3”
(K31) 30” x 20”
(K41) |
CAST 316SS |
CAST 316SS |
UPPER-INCONEL LOWER- 17-4PH SS |
SILICONE/ INTU-MESCENT |