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 45-990000-924 Fluoro K Refill and Rebranding 1.5 ECS 360 Novec ECS HFC 227ea Cylinder Valve Assemblies. Includes Factory Service, Valve

Kidde Fenwal 45-990000-923 All 1 Valve Based ECS-500 Fluoro-K Agent Cylinders (10 to 125 lb.) Includes Factory Service, Valve Rebuild and Refill

Kidde Fenwal 45-551101-901 ECS-500 Fluoro-K Cylinder 1100 lb. (499.0 kg) Capacity; 3" Valve, with LLI; UL, FM

Kidde Fenwal 45-550901-901 ECS-500 Fluoro-K Cylinder 900 lb. (408.0 kg) Capacity; 3" Valve, with LLI; UL, FM

Kidde Fenwal 45-550601-901 ECS-500 Fluoro-K Cylinder 600 lb. (272.1 kg) Capacity; 3" Valve, with LLI; UL, FM

Kidde Fenwal 45-550451-901 ECS-500 Fluoro-K Cylinder 450 lb. (204.1 kg) Capacity; 2" Valve, with LLI; UL, FM

Kidde Fenwal 45-550351-901 ECS-500 Fluoro-K Cylinder 350 lb. (158.7 kg) Capacity; 2" Valve, with LLI; UL, FM

Kidde Fenwal 45-550201-901 ECS-500 Fluoro-K Cylinder 200 lb. (90.7 kg) Capacity; 2" Valve, with LLI; UL, FM

Kidde Fenwal 45-550121-901 ECS-500 Fluoro-K Cylinder 125 lb. (56.7 kg) Capacity; 1.5" Valve, with LLI; UL, FM

Kidde Fenwal 45-550070-901 ECS-500 Fluoro-K Cylinder 500 psi 70 lb. (31.7 kg), 1.5" Valve, No LLI; UL, FM

Kidde Fenwal 45-550040-901 ECS-500 Fluoro-K Cylinder 500 psi 40 lb. (18.1 kg), 1.5" Valve, No LLI; UL, FM

Kidde Fenwal 45-550020-901 ECS-500 Fluoro-K Cylinder 500 psi 20 lb. (9 kg), 1.5" Valve, No LLI; UL, FM

Kidde Fenwal 45-550010-901 ECS-500 Fluoro-K Cylinder 500 psi 10 lb. (4.5 kg), 1.5" Valve, No LLI; UL, FM

Kidde Fenwal 45-500901-901 ADS Fluoro-K Cylinder, 900 lb. (408.0 kg) Capacity 3 Valve, with LLI; UL, FM

Kidde Fenwal 45-500601-901 ADS Fluoro-K Cylinder, 600 lb. (272.1 kg) Capacity 3 Valve, with LLI; UL, FM

Kidde Fenwal 45-500537-001 Explosionproof Cylinder Supervisory Pressure Switch, ATEX Comp Approved Only for All Size Valves for ECS-500 Systems

Kidde Fenwal 45-500451-901 ADS Fluoro-K Cylinder, 450 lb. (204.1 kg) Capacity 2 Valve, with LLI; UL, FM

Kidde Fenwal 45-500351-901 ADS Fluoro-K Cylinder, 350 lb. (158.7 kg) Capacity 2 Valve, with LLI; UL, FM

Kidde Fenwal 45-500201-901 ADS Fluoro-K Cylinder, 200 lb. (90.7 kg ) Capacity 2" Valve, with LLI; UL, FM

Kidde Fenwal 45-194728-XXX ECS-500 Fluoro-K & 3M NOVEC 1230 Discharge Nozzles, Brass, 360, 2" NPT, Custom Drilled per Calculation Software

Kidde Fenwal 45-194727-XXX ECS-500 Fluoro-K & 3M NOVEC 1230 Discharge Nozzles, Brass, 360, 1-1/2" NPT, Custom Drilled per Calculation Software

Kidde Fenwal 45-194726-XXX ECS-500 Fluoro-K & 3M NOVEC 1230 Discharge Nozzles, Brass, 360, 1-1/4" NPT, Custom Drilled per Calculation Software

Kidde Fenwal 45-194725-XXX ECS-500 Fluoro-K & 3M NOVEC 1230 Discharge Nozzles, Brass, 360, 1" NPT, Custom Drilled per Calculation Software

