Ansul LT-20-R Nitrogen Cartridge 005063

The Ansul LT-20-R Nitrogen Cartridge (Part No. 005063) serves as the high-pressure pneumatic nerve center for the Ansul R-102 and PIRANHA fire suppression systems. The critical engineering distinction of the Low Temperature (LT) designation allows this cartridge to maintain full operational readiness in environments as low as -20°F. This makes it the definitive choice for unheated storage areas, stadium concessions, and ghost kitchens where climate stability is not guaranteed.

Operating on a puncture-and-release principle, the 005063 provides the kinetic energy required to open agent valves and propel the ANSULEX liquid through the piping. With a 20-flow point hydraulic balancing capacity, a single LT-20-R provides the necessary pressure to actuate mid-to-large hood configurations without booster cartridges. Manufactured to DOT 3E-1800 structural integrity standards, this high-purity nitrogen source ensures a non-reactive, moisture-free propellant that prevents internal pipe corrosion and delivers a fail-safe response.

The 005063 must be installed by a certified fire suppression technician in accordance with the Ansul R-102 or PIRANHA system design manual. Before installation, the technician must verify the cartridge matches the factory-stamped gross weight. The cartridge must be seated fully in the AUTOMAN release and the safety pin must be in place before the system is re-armed.

Because the LT-20-R is a sealed high-pressure vessel, a slow leak through the gold-colored diaphragm cannot be detected visually. Every six months, a technician must weigh the cartridge; if it deviates from the factory-stamped weight, it must be replaced immediately to prevent a non-discharge event during a fire. The cartridge is single-use; once punctured, it must be replaced with a fresh 005063. It must not be refilled or reused, as DOT regulations prohibit the recharging of this class of pressure vessel in the field.

How does the "LT" designation help in unheated facilities?

Standard gas cartridges can suffer from pressure drops in extreme cold, which may lead to a failed or sluggish discharge. The LT-20-R is optimized for cold storage environments, ensuring that the gas expands with enough force to overcome valve spring tension even when the facility's HVAC system is offline.

Why is a semi-annual "weight audit" required?

Because the LT-20-R is a sealed high-pressure vessel, a slow leak through the gold-colored diaphragm cannot be detected visually. Every six months, a technician must weigh the cartridge; if it deviates from the factory-stamped weight, it must be replaced to prevent a non-discharge event during a fire.

Can the LT-20-R actuate a hybrid PIRANHA system?

Yes. In PIRANHA systems, the LT-20-R provides the initial pneumatic burst required to trigger the chemical suppression phase before the system transitions to water-mist cooling. This ensures that the high-volume 20-flow capacity is utilized for rapid flame knockdown.