Slagging and fouling remain among the biggest operational challenges in industrial boilers
Deposits reduce heat transfer, increase flue gas temperatures before superheaters and lead to unplanned shutdowns. The P-Wave Generator (PWG) was developed to solve exactly this problem — supersonic pressure waves remove deposits effectively, fully automatic and without detonation.
The result: more stable operation, fewer outages and significantly improved plant economics.
Technology
High-power supersonic pressure waves
Supersonic pressure waves are generated with compressed air — no pure oxygen.
Fully automatic
An alternative to manual explosion cleaning. P-Wave generators operate **fully automatically** and integrate into existing plant control systems. Overcome the safety and cost limitations of manual explosion cleaning systems.
Combustion without detonation
The supersonic pressure waves are created when hot, high-pressure gas is released very quickly from the generator into the boiler. The initial energy comes from burning **small amounts of propane (~20 g/shot)** mixed with compressed air in the process chamber.
Adjustable pressure & power
Combustion pressures are typically set between **150 and 600 bar**. The generator is designed and **certified for 900 bar**. Operators can program timing and strength, so cleaning is tuned to actual site requirements.
Power and timing are software settings in the controller — adjust them as often as you like to match your actual fouling conditions. Combustion pressure runs 150–600 bar (certified to 900 bar), with a typical shot every two hours.
“Can I change the strength and frequency of the power waves?”
“Yes — they’re settings in the controller. You can change them as often as you like.”
Why P-Wave
Cleaning without contact, detonation or compromise
No detonation, no oxygen
Power waves come from burning ~20 g of propane in compressed air — not from explosives or oxygen cylinders. Inherently safer by design.
Fully automatic
Integrates with your DCS via PLC. One programmed shot every ~2 hours, no operator presence required during operation.
Gentle on tubes
No physical contact with tube materials, so cleaning is the least impacting option — typically reducing corrosion.
Low operating cost
≈100 kg propane and ~1000 kWh per year. Typical OPEX around €3,000/year excluding staff and travel.
Stable temperatures
Consistently lower flue gas temperatures before superheaters; less de-superheating and fewer unplanned shutdowns.
Easy to maintain
Robust shock-pulse design. One major intervention per year; wear parts replaced in the on-site workshop.
From waste-to-energy lines across Europe to large coal-fired units in Asia, P-Wave generators are at work across four continents. Each marker is an installation site, not a single generator; regions shown are indicative.
150+P-Wave systems in operation across these sites
Sites in operation
In operation
See a P-Wave generator at work
Installed and firing in real plants — no test rig, no animation.
Enter your operating profile and compare two P-Wave scenarios against your baseline — savings, generator count and payback. Indicative only; we follow up with a tailored review.
