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 WK-870652-000 Lever Operated Control Head

Kidde Fenwal WK-866343-100 Roll, 100 X Cylinder Label, non-U.L.

Kidde Fenwal WK-857000-000 5 Cylinder Front - 75 lb Oak Rack

Kidde Fenwal WK-856900-000 5 Cylinder Intermediate - 75 lb Oak Rack

Kidde Fenwal WK-856800-000 5 Cylinder Back - 75 lb Oak Rack

Kidde Fenwal WK-856500-000 4 Cylinder Front - 75 lb Oak Rack

Kidde Fenwal WK-856400-000 4 Cylinder Intermediate - 75 lb Oak Rack

Kidde Fenwal WK-856300-000 4 Cylinder Back - 75 lb Oak Rack

Kidde Fenwal WK-856000-000 3 Cylinder Front - 75 lb Oak Rack

Kidde Fenwal WK-855900-000 3 Cylinder Intermediate - 75 lb Oak Rack

Kidde Fenwal WK-855800-000 3 Cylinder Back - 75 lb Oak Rack

Kidde Fenwal WK-855500-000 2 Cylinder Front - 75 lb Oak Rack

Kidde Fenwal WK-855400-000 2 Cylinder Intermediate - 75 lb Oak Rack

Kidde Fenwal WK-855300-000 2 Cylinder Back - 75 lb Oak Rack

Kidde Fenwal WK-844579-000 Anti-Recoil Safety Cap, 1-1/2 ECS, FE13 Valve Outlet

Kidde Fenwal WK-843837-000 Adapter, 1/2 EMT (female) X 3/8 Pipe (male)

Kidde Fenwal WK-841241-000 Pneumatic Heat Detector (3/16 Tubing, Marine)

Kidde Fenwal WK-840845-000 Pneumatic Heat Detector (1/8 Tubing, Industrial)

Kidde Fenwal WK-840253-002 5/8" I-Valve - TPED Approved

Kidde Fenwal WK-840253-000 HPCO2 Type I 5/8" Valve

Kidde Fenwal WK-840041-000 HPCO2 Manometer Test Set

Kidde Fenwal WK-802746-000 Vent, 10 Second

Kidde Fenwal WK-802745-000 Vent, 5 Second

