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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.
Model
NS-ASAM
NS-Pak
High-pressure regulator for connection to single or multiple pressure
Nitrogen Regulator
Product Description
Nitrogen maintenance device with automatic switchover
Single system nitrogen maintenance device with high pressure
regulator
maintenance devices
www.reliablesprinkler.com
Bulletin 254 May 2019
Nitrogen Automatic Pressure
Maintenance Devices
Model NS-ASAM
Model NS-Pak
Nitrogen Regulator
Listing and Approvals
cULus Listed
FM Approved
cULus Listed
FM Approved
N/A
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Related Manuals for Reliable NS-ASAM
Summary of Contents for Reliable NS-ASAM
- Page 1 Reliable Nitrogen Automatic Pressure Maintenance Devices Model NS-Pak 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.
- Page 2 NS-ASAM, although a minimum pressure of 100 psi (6.9 bar) up to a maximum pressure of 250 psi (17.2 bar) are Listings and Approvals permitted. The NS-ASAM will admit nitrogen or air from the cULus Listed primary source, until the primary source depletes to a pres- FM Approved sure of approximately 80 psi (5.5 bar).
-
Page 3: Installation And Adjustment
NS-ASAM and connect the secondary source bar). of nitrogen or air to the secondary inlet of the NS-ASAM. 13. If necessary, adjust the setting of the low-pressure switch 5. Connect the NS-ASAM outlet to the port provided for pneu for each system. - Page 4 Model NS-Pak Listings and Approvals Syetem Operation cULus Listed High-pressure nitrogen contained in the cylinder(s) is reduced by the adjustable regulator (included with NS- Pak) to a recommended setting of 100 psi (6.9 bar). The high-pressure regulator supplies a field adjustable System Pressure Regulator in the NS-Pak controlling pressure to the system.
- Page 5 Model NS-Pak Components Figure 4 Pressure Regulator P/N 6999991570 Installation and Adjustment 10. Open the cylinder control valve and supply inlet valve in the NS-Pak. 11. Open the Bypass Valve and the NS-Pak Outlet Valve to 1. Securely mount the NS-Pak enclosure to the wall using the allow nitrogen to flow into the system piping.
- Page 6 Nitrogen Regulator Product Description High-pressure nitrogen contained in the cylinder is reduced by the Nitrogen Regulator. The Nitrogen Regulator supplies one or more Pressure Mainte- nance Device(s) (not included) controlling pressure to the sprinkler system(s). As the cylinder pressure depletes below 90 psi (6.2 bar), the Optional Low Pressure Switch activates to indicate low nitrogen pressure.
-
Page 7: Maintenance
Maintenance Guarantee The owner is responsible for maintaining all parts of the fire pro- For the Reliable Automatic Sprinkler Co., Inc. guarantee, terms, tection system in proper operating condition. Any system main- and conditions, visit www.reliablesprinkler.com. tenance or testing that involves placing a system component out...
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