Kidde Fenwal supplies engineered fire suppression and detection for high-hazard and mission-critical spaces — clean agent and CO2 systems, cylinders and valves, discharge nozzles and piping hardware, control panels and specialist detection.
These are system components rather than standalone products. A suppression installation ties together the cylinder and its valve assembly, the actuation hardware, the nozzles sized for the hazard volume, the pipe network, and a detection and release panel — and the parts are matched to one another by design calculation, not chosen independently.
When ordering replacements, work from the system drawings or the existing part numbers. Nozzle orifice sizing in particular is specific to the hazard it was calculated for and is not interchangeable between installations.

Kidde Fenwal 38-998031-055 80 L, 300 Bar, Cylinder Refill with IG-55

Kidde Fenwal 38-998031-001 80 L, 300 Bar, Cylinder Refill with IG-01

Kidde Fenwal 38-998021-541 80 L, 200 Bar, Cylinder Refill with IG-541

Kidde Fenwal 38-998021-100 80 L, 200 Bar, Cylinder Refill with IG-100

Kidde Fenwal 38-998021-055 80 L, 200 Bar, Cylinder Refill with IG-55

Kidde Fenwal 38-998021-001 80 L, 200 Bar, Cylinder Refill with IG-01

Kidde Fenwal 38-509803-001 Kit, Pressure Regulator (PRV 38-509836-000 Included) Note: for Use with Selector Valves 38-609800-00x or 85-609800-00x

Kidde Fenwal 38-428031-541 IGS Cylinder-Valve Assembly, IG-541 Gas, 300 Bar (4350 psi), 80 Liter

Kidde Fenwal 38-428031-100 IGS Cylinder-Valve Assembly, IG-100 Gas, 300 Bar (4350 psi), 80 Liter

Kidde Fenwal 38-428031-055 IGS Cylinder-Valve Assembly, IG-55 Gas, 300 Bar (4350 psi), 80 Liter

Kidde Fenwal 38-428031-001 IGS Cylinder-Valve Assembly, IG-01 Gas, 300 Bar (4350 psi), 80 Liter

Kidde Fenwal 38-428021-541 IGS Cylinder-Valve Assembly, IG-541 Gas, 200 Bar (2900 psi), 80 Liter

Kidde Fenwal 38-428021-100 IGS Cylinder-Valve Assembly, IG-100 Gas, 200 Bar (2900 psi), 80 Liter

Kidde Fenwal 38-428021-055 IGS Cylinder-Valve Assembly, IG-55 Gas, 200 Bar (2900 psi), 80 Liter

Kidde Fenwal 38-428021-001 IGS Cylinder-Valve Assembly, IG-01 Gas, 200 Bar (2900 psi), 80 Liter

Kidde Fenwal 38-427400-XXX IGS Discharge Nozzle 1-1/2", NPT, 360, Orifice Sized per Calculation Software

Kidde Fenwal 38-427300-XXX IGS Discharge Nozzle 1", NPT, 360, Orifice Sized per Calculation Software

Kidde Fenwal 38-427200-XXX IGS Discharge Nozzle 3/4", NPT, 360, Orifice Sized per Calculation Software

Kidde Fenwal 38-427100-XXX IG-100 Discharge Nozzle 1/2", NPT, 360, Orifice Sized per Calculation Software

Kidde Fenwal 38-421431-541 IGS Cylinder-Valve Assembly, IG-541 Gas, 300 Bar (4350 psi), 140 Liter

Kidde Fenwal 38-421431-100 IGS Cylinder-Valve Assembly, IG-100 Gas, 300 Bar (4350 psi), 140 Liter

Kidde Fenwal 38-421431-055 IGS Cylinder-Valve Assembly, IG-55 Gas, 300 Bar (4350 psi), 140 Liter

Kidde Fenwal 38-421431-001 IGS Cylinder-Valve Assembly, IG-01 Gas, 300 Bar (4350 psi), 140 Liter

