re-2010-00202_0003 (2).jpg Chapter 3 — System Design
Page 3 -14
REV, 2
PCI -35ABC with 4 nozzles
CYLINDER
/ T1
F_ T2
NOZZLE
D02664PC
Cylinder Size Maximum Nozzle Type Piping Section Size Length Elbows
` Nozzle Quantity Maximum Maximum
PCI -35ABC 4 Any Combination Cylinder to T1 1 in. 30 ft. (91 m) 7
of NV -P1 (see Note 5),
NV -DP2, or NV -UF T1 to T2 1 in. 8 ft. (2,4 m) 2
T2 to Nozzle 3/4 in. 8 ft. (2.4 m) 4
PCI -35ABC 4 NV -UF or any Cylinder to T1 1 in. 30 ft. (9.1 m) 7
combination of NV -P1,
NV -DP2, N -PLU T1 to T2 1 in. 8 ft. (2.4 m) 2
T2 to Nozzle 3/4 in. 8 ft. (2.4 m) 4
dfiEr
1. System piping must be balanced. Balanced piping is that in which the difference between the shortest actual pipe length
from T1 to nozzle and the longest actual pipe length from T1 to nozzle does not exceed 10% of the longest actual pipe
length from T1 to nozzle. T2 to nozzle on the same branch must not exceed 10% of each other. The number and type of
fittings for all last tee to nozzle sections must be equal.
2. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and Ti.
3. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
4. When using an NV -P1 nozzle, the two largest discharge orifices in the nozzle body must be positioned parallel to the
longest dimension of the hazard being protected.
► 5. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 CEx732
September 1, 2006