In order to provide high purity nitrogen throughout the sprinkler system, the entrapped oxygenated air needs to be removed. The easiest way to remove that oxygen is to purge that system with nitrogen. In order to remove the oxygen, there must be a purge device installed at the far point of the system to allow it to escape. Potter has two options available that, combined with your Potter Nitrogen Generator, ensure your system is full of high purity nitrogen.
NitrogenPurge Valves
IntelliPurge® Nitrogen Purge Valve
Self-Purging Valve Kit
INS-PV
Automatically purges corrosive oxygen from a fire sprinkler system
Built-in nitrogen analyzer for continuous monitoring of N₂ levels in the sprinkler system
Local display allows visual indication of nitrogen level and purge time
LED's for Power, Purging Status and Trouble conditions
Unique IntelliDry purge mode for ice plug and freezer application
Used in conjunction with INS-RA remote annunciator for networking capability
Form C dry contacts for Building Management System (BMS) notification
Includes UL listed and FM approved float type vent for fire protection service (175 PSI service pressure rating) that automatically closes when water reaches the vent in the event of a system activation
The INS-PV Potter IntelliPurge® Nitrogen Purge Valve is designed to work with Potter Nitrogen Generators to effectively purge corrosive oxygen from a fire sprinkler system. Potter's INS-PV is the easiest and most effective way to ensure that high purity nitrogen is equally distributed throughout the fire sprinkler system. Simply install the INS-PV at a remote point in the fire sprinkler system and start the purge cycle. The built-in nitrogen analyzer samples the exiting gas, providing up-to-date information on the nitrogen levels in the fire sprinkler system. Once the INS-PV has measured that the fire sprinkler system has reach 98% N₂, the unit automatically stops purging and signals a successful purge. Even after the system has stopped purging, the INS-PV periodically samples the gas within the sprinkler system, ensuring that the fire sprinkler system is at 98% N₂ and the fire sprinkler system is protected. Dry contacts are provided for BMS notification. Using the optional INS-RA Remote Annunciator up to 27 INS-PV units can be networked together, allowing for large nitrogen applications to be easily controlled and monitored from one convenient location.
The Potter Nitrogen Self Purge valve (NGP-SPV) is designed to work with Potter Nitrogen Generators Systems to effectively purge corrosive oxygen from a fire sprinkler system while maintaining adequate system pressure. Potter's Self Purge Valve is the easiest way to ensure high purity nitrogen is equally distributed throughout the fire sprinkler system. Simply install the NGP-SPV off a tee connection at the end of the sprinkler system. No electrical connections are required. When the nitrogen generator is in operation the purge orifice automatically bleeds out the oxygen as well as the residual moisture in the system. The purge valve also provides a sampling port to monitor the nitrogen purity within the system piping.
In the event of an alarm condition the NGP-SPV has a built-in high pressure water shut-off valve that automatically closes when the water reaches the vent. A plug is supplied to keep the purge orifice free of debris when not in use. A ball valve allows for isolation of the assembly, maintinance of strainer screen, replacement of air vent, or maintinance of the purge orifice.
