Model
Product Description
Listing and Approvals
NS-ASAM
Nitrogen maintenance device with automatic switchover
cULus Listed
FM Approved
NS-Pak
Single system nitrogen maintenance device with high pressure
regulator
cULus Listed
FM Approved
Nitrogen Regulator
High-pressure regulator for connection to single or multiple pressure
maintenance devices
N/A
Product Features
NS-ASAM
• Designed for two separate nitrogen or air sources
• Automatically switches between primary and secondary
source
• Bypass valve provided for quick fill of system
• Low-pressure switch for primary source
• For use on single or multiple systems
• Keyhole slots provided for easy wall mounting
NS-Pak
• For bottled nitrogen use on a single system
• Low-pressure switches for nitrogen source and system
• Bypass valve provided for quick fill of system
• Keyhole slots provided for easy wall mounting
Nitrogen Regulator
• For bottled nitrogen use on single or multiple systems
• Low-pressure switch for nitrogen source
General Description
Reliable Nitrogen Automatic Pressure Maintenance Devices
are designed to connect nitrogen cylinders to dry pipe and
preaction systems. The NS-ASAM is designed to connect a
primary and secondary cylinder or bank of cylinders to sin-
gle or multiple systems, and provides automatic switchover
between sources. The NS-Pak is a self-contained unit for con-
nection of a cylinder or bank of cylinders to a single system.
The Nitrogen Regulator reduces cylinder pressure and can
be connected to the A-2 Pressure Maintenance Device on
single or multiple systems. Each device includes a low-pres-
sure switch to signal that the nitrogen source is depleting and
needs service. High-pressure cylinders (not included) can
typically be obtained from a local source.
www.reliablesprinkler.com
Model NS-ASAM
Model NS-Pak
Nitrogen Regulator
Nitrogen Automatic Pressure
Maintenance Devices
Bulletin 254 May 2019
