Ansul LT-30-R Nitrogen Cartridge 005373

The Ansul LT-30-R (P/N 005373) is a 30-gram nitrogen expellant cartridge for the Ansul R-102 and PIRANHA restaurant fire suppression systems. In a cartridge-operated regulated release assembly, the system operates mechanically: when the detection cable releases tension (via a fusible link separating or a manual pull station being activated), the AUTOMAN firing pin punctures the copper seal of the nitrogen cartridge. The released nitrogen gas travels through the expellant gas piping to the agent tank or tanks, pressurizing them and opening the agent valves to discharge ANSULEX wet chemical through the nozzles and onto the protected cooking appliances.

The "R" in LT-30-R designates Right-Hand Thread (RHT), which specifies the cartridge's thread direction. Confirm the thread orientation of your AUTOMAN cartridge receiver before ordering, as left-hand thread cartridges are not interchangeable with right-hand thread receivers. The 30-gram nitrogen charge is calibrated for R-102 regulated release assemblies requiring a higher-volume expellant charge. The cartridge is a single-use component and must be replaced after every system actuation.

Construction and Reliability

• Drawn-Steel Construction: The cartridge body is manufactured from high-tensile deep-drawn steel with no seams or weak points, allowing it to safely retain high-pressure nitrogen for extended standby periods.
• Corrosion-Resistant Finish: The exterior is treated to resist the humid, grease-laden air common in commercial kitchen exhaust hood installations.
• Factory-Sealed Puncture Disc: The copper seal is precisely calibrated to prevent accidental leakage under standby conditions while allowing a clean, full-flow puncture from the AUTOMAN firing pin upon actuation.

• Commercial Kitchen Hoods: The expellant cartridge for R-102 cartridge-operated regulated release assemblies in systems protecting fryers, griddles, ranges, broilers, and exhaust ducts.
• PIRANHA Restaurant Systems: Compatible with PIRANHA system cartridge-operated regulated release assemblies per Ansul system specifications.
• Multi-Tank Systems: The 30-gram charge provides the higher expellant gas volume required when the regulated release assembly must pressurize multiple agent tanks through the system's expellant gas piping network.

The LT-30-R is a single-use safety device subject to the maintenance requirements of NFPA 17A and NFPA 96.

• Post-Discharge Replacement: The cartridge must be replaced immediately after any system actuation. It cannot be recharged or reused in the field.
• Semiannual Weight Check: During the required semiannual professional inspection, the certified technician removes and weighs the cartridge. Any weight loss from the rated 30-gram charge indicates a slow leak, and the cartridge must be replaced to ensure system readiness.
• Thread Verification: Before installation, confirm the cartridge thread direction (RHT) matches the AUTOMAN cartridge receiver in the specific installation. Using a mismatched cartridge can prevent proper seating and puncture.
• Certified Installer Required: Because the LT-30-R is a pressurized vessel and a life-safety system component, it must be handled and installed only by certified Ansul fire protection professionals.

What does "LT-30-R" stand for?

The "30" designates the 30-gram nitrogen charge weight. The "R" designates Right-Hand Thread (RHT), which specifies the thread direction of the cartridge. Verify your AUTOMAN cartridge receiver thread orientation before ordering to ensure compatibility.

What is the difference between an LT-20 and an LT-30-R?

The number designates the nitrogen charge weight. An LT-20 contains 20 grams, while the LT-30-R contains 30 grams. Using an LT-20 in a system designed for an LT-30-R may result in insufficient pressure to fully discharge all agent tanks, especially in multi-tank configurations. Always match the cartridge to the system's design specifications as confirmed by the authorized Ansul distributor.

Can I use a CO2 cartridge instead of the LT-30-R nitrogen cartridge?

No. The R-102 and PIRANHA systems that use the LT-30-R are specifically designed and listed for nitrogen expellant. Substituting a CO2 cartridge changes the pressure dynamics and gas characteristics of the expellant system, which can result in incorrect agent discharge or system failure. Only use the cartridge type specified in the system's design documentation.