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Sep 23, 2025/ 0 Comments / in Aerial Firefighting, Cloudburst, IMS News, Industry News / by
Aerial Firefighting Just Got Better

IMS launches updated multi-drop Monsoon Valve for Cloudburst Fire Buckets.

Click here to download a brochure about Cloudburst Fire Buckets

IMS Helicopter Equipment Specialists, a trusted name in helicopter equipment, has announced the release of its updated Multi-Drop Monsoon Valve for the Cloudburst Fire Bucket, setting a new benchmark for Initial Attack aerial firefighting. The new valve is compatible with Cloudburst Fire Buckets up to 1,200 litres (320 gallons) and features a compact, streamlined profile that allows it to be transported in a standard external cargo basket. This innovation reduces setup time and enables operators to reach the fire line faster than ever before.

Built on over two decades of real-world field use, the updated Multi-Drop Monsoon Valve delivers a powerful, high-volume water column with precise control, giving pilots the ability to make multiple targeted drops from a single load.

“This valve is going to be a game changer for Initial Attack operators,” said Declan Monteith, Technical Sales at IMS. “With the updated Monsoon Valve, we’re providing a higher flow rate in a smaller profile allowing a Multi-Drop Bucket to fit into a standard external cargo basket.”

Key Features:
> Compact – Streamlined design fits external cargo baskets
> High Flow Rate – Delivers a powerful, focused water column for maximum effectiveness
> Multi-Drop Capable – Precision control with multiple drop functionality
> Built Tough – Rugged construction for demanding conditions
> Designed & Built in New Zealand – Engineered for high performance and durability
> Operations Tested – Based on the proven Cloudburst platform, refined through over two decades of real-world use
> Optional Additive Integration System – Supports the use of foams and additives during initial attack

IMS has already delivered two 1,000-litre (264-gallon) Cloudburst Fire Buckets equipped with the new valve to Canada this fire season, marking the first of many orders for this upgraded design.


Cloudburst Fire Bucket inside AS350 External Cargo Basket


Initial Attack Monsoon Valve


Declan Monteith | Technical Sales | imssales@imsheli.com | +64 21 583 033