The Reliable Automatic Sprinkler Co., Inc.,
103 Fairview Park Drive, Elmsford, New York 10523
Bulletin 737
Rev.
B
Double Interlock
Preaction System - Type D
2" (50mm), 2-1/2" (65mm),
3" (80mm) & 76mm Sizes
Instructions for
Installation, Operation,
Care, and Maintenance
10 PSI (0,7 bar) Pneumatic Supervising Pressure
With Electric / Pneumatic Actuation
Controlled by a Cross-Zoned Releasing Control Panel
Type D System
B
u
lle
tin
7
3
7
R
e
v.
B
Available with 175 psi (12,1 bar) or
250 psi (17,2 bar) Rated Solenoid
Valve
Externally Resettable Clapper
One Main Drain
