Williams PKW Purple-K dry chemical suppressing agent
A siliconized, deep purple Purple-K dry chemical engineered for Williams Hydro-Chem technology, for fast knockdown of pressurized and three-dimensional Class B fires.
Williams PKW is a specialized Purple-K dry chemical developed for the most demanding hydrocarbon fires. It is formulated for use with Williams Hydro-Chem technology, where the powder is carried inside a water or foam stream. Combining the two agents gives faster, more efficient knockdown and extinguishment than either delivers alone. PKW is designed for pressurized and three-dimensional Class B liquid fires, such as leaking flanges, running fuel and pressurized releases, where foam alone struggles to reach the seat of the fire.
PKW is based on Purple-K, a potassium bicarbonate dry chemical. The powder is siliconized, so it stays free-flowing and water-repellent and discharges reliably when carried in a water or foam stream. Its deep purple colour keeps firefighters on target when the agent is applied within the foam or water flow, so crews can see exactly where the powder is landing, even in smoke and poor visibility.
PKW is the agent used in the Powder Xtreme Dry Chemical Skid and the Double Assassin firefighting trailer. It is supplied in a 22.6 kg plastic pail, which makes refilling either system quick and straightforward. Like all Purple-K agents, PKW must never be mixed with phosphate-based (ABC) dry chemicals.
Industrial Fire & Hazard Control supplies Williams PKW with training and full technical support across Southern Africa.
Features
- Siliconized Purple-K (potassium bicarbonate) dry chemical
- Formulated for Williams Hydro-Chem technology
- For pressurized and three-dimensional Class B liquid fires
- Deep purple colour keeps the agent visible within the water or foam stream
- Free-flowing and water-repellent
- Agent for the Powder Xtreme and Double Assassin systems
- Supplied in a 22.6 kg plastic pail
