NNI Inc. Online     |     home
Sprinklerheads   |   Sprinklerhead Accessories   |   Valves   |   Fire Hose   |   Fire Hose Accessories   |   Brass Products   |   Pipe Fittings   |   Oils & Chemicals   |   Contact Us

Waterflow Sprinkler Products                                         

- Waterflow Detectors

 

WFDN

Durable and dependable, a number of System Sensor's products are UL listed for outdoor as well as indoor application. The WFDTH model is designed for residential systems and fits nicely into 2 in.x 4 in. wall stud construction.
  • 450 PSI pressure rated
  • NEMA4 rated
  • Visual switch activation
  • Durable metal enclosure
  • Sealed retard mechanism
WFDTN EXPLOSION PROOF

U.S. / Int'l Models

Pipe Size / Schedule

Hole Size o o
WFDNFT

The WFDNFT is a Waterflow detector for installation to 1” threaded tees..

 
WFDTN Non-retard; fits same tees as above  
WFD20N
WFD20EXP
2 in. / 50 mm – schedule 10 through 40
(see data sheet for LPC, VDS nominal pipe O.D.)
1-1/4"
WFD25N
WFD25EXP
2.5 in. / 65 mm – schedule 10 through 40 1-1/4"
WFD30N
WFD30EXP
3 in. / 80 mm – schedule 10 through 40 1-1/4"
WFD40N
WFD40EXP
4 in. / 100 mm – schedule 10 through 40 2"
WFD50N 5 in. / schedule 10 through 40 2"
WFD60N
WFD60EXP
6 in. / 150 mm – schedule 10 through 40 2"
WFD80N
WFD80EXP
8 in. / 200 mm – schedule 10 through 40 2"
(For Canadian models add "A" to the model number)

* Spears® is a registered trademark of Spears Manufacturing Company.
** Victualic® is a registered trademark of Victualic Company of America.

Data Sheet Installation Instruction

E-mail: sales@nnifire.com
Phone: 305-687-3330
Fax: 815-366-8272
Copyright © 2001 NNI INC. All rights reserved.