Combination units

Impi Combination Jet & Suction Units

Name: Impi Combination Jet & Suction Units
Brand: Werner Pumps

High-pressure jetting and liquid suction for sewer, stormwater and wastewater duties. The Wet-Only configuration uses a Storm PM3000 vane vacuum pump and is engineered around wet material recovery, controlled emptying and reliable municipal or industrial operation.

Selected modelImpi Wet-Only1,700 m³/h · up to 93% vacuum

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Jet. Recover. Finish the job.

Werner Impi combination jet and suction unit

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Product overview

Built to endure. Engineered to perform.

The Impi is engineered to remove the blockage and recover the material without sending a second machine to the site. High-pressure jetting, high-volume suction, hydraulic tank tipping and practical hose handling are arranged as one coordinated system for sewer maintenance, sludge removal, stormwater work and selected industrial cleaning duties.

Select the system for the material

The standard Impi uses a water-cooled Storm PM3000 vane pump and 304 stainless-steel tank for wet recovery and sewer-cleaning work. The Impi Wet/Dry moves to a PVT400 tri-lobe blower, 316 stainless-steel tank and Werner dual-cyclone filtration to capture moisture, fine dust and solids before they reach the vacuum pump.

Control from the working position

A rear IP65 control panel brings jetting pressure, vacuum indication, pump engagement and emergency stop functions together. Hydraulic reels, water-level protection and remote cable controls for tank tipping and rear-door operation reduce unnecessary movement around the vehicle and keep core functions within reach.

Designed to stay productive

Both variants use a 120 m main jetting hose, a 30 m lateral hose and hydraulically driven pump systems. The tipping tank, full rear access and filtration clean-out points support faster emptying and maintenance, while optional remote control and equipment upgrades allow the final build to reflect the operator’s application.

The 12,500 L configuration provides 7,500 L sludge capacity and 5,000 L clean jetting water; the specialised 15,000 L 8×4 configuration provides 10,000 L sludge capacity and 5,000 L clean jetting water.

Werner triplex plunger pump delivers approximately 295 L/min at up to 150 bar, dependent on chassis power and configuration.

Standard Impi uses a Storm PM3000 vane pump rated at 1,700 m³/h and up to 93% vacuum.

Wet/Dry variant uses a PVT400 tri-lobe blower rated at 2,400 m³/h and up to 93% vacuum.

Wet/Dry Patented dual-cyclone filtration protects the blower from moisture, fine dust and solid carry-over.

Rear hydraulic reel carries 120 m of 1-inch high-pressure hose; lateral reel carries 30 m of ½-inch hose.

Combined operation of the high-pressure and vacuum pumps is supported by the hydraulic power-transmission system.

Boom reach, rotation and vacuum-hose specification vary by Impi configuration and should be confirmed at quotation.

Tank configurations12,500 L: 7,500 L sludge + 5,000 L water · 15,000 L: 10,000 L sludge + 5,000 L water on specialised 8×4 chassis

Jetting performanceApproximately 295 L/min at up to 150 bar

Standard vacuum1,700 m³/h at up to 93% vacuum

Wet/Dry vacuum2,400 m³/h at up to 93% vacuum

Interactive model selector

Choose a variant below to update the performance, image, download and enquiry details.

Models & variants

Choose the configuration built for the duty.

Select a model to compare its working identity, performance and available literature. Final specifications remain subject to Werner engineering confirmation.

Impi Wet-Only

1,700 m³/h · up to 93% vacuum

Liquid recovery · 304 stainless-steel tank

The 12,500 L Impi configuration is split into 7,500 L sludge capacity and 5,000 L clean jetting water. The specialised 15,000 L 8×4 arrangement increases sludge capacity to 10,000 L while retaining 5,000 L of clean jetting water, subject to final axle loading, legal mass and application engineering.

Vacuum performance: 1,700 m³/h · up to 93% vacuum
Recovery duty: Wet / liquid material
Tank material: 304 stainless steel
Vacuum system: Storm PM3000 vane vacuum pump
Tank and chassis capacity: 12,500 L: 7,500 L sludge + 5,000 L water · 15,000 L: 10,000 L sludge + 5,000 L water on specialised 8×4 chassis

Enquire about this variant →Werner Impi Combination Unit

How the system is defined

Performance starts with the duty.

Werner technical sales matches the complete unit to the material, environment, mounting and working cycle. Final specifications remain subject to engineering confirmation.

ApplicationSewer and stormwater networks

MountingTruck

Operating environmentMunicipal, Industrial, Remote

CapabilityWet and dry capable

Jets, recovers and transports material in one operation
Wet/dry configurations extend the application range

Configuration options

A complete working system, not a catalogue code.

Select the points you want to discuss. Your choices will be carried into the product enquiry as a grouped configuration brief.

01Tank and chassis configurationRequired

Both configurations retain 5,000 L of clean jetting water. Tank capacity is engineered together with the chassis, axle loading and final equipment layout.

12,500 L total — 7,500 L sludge + 5,000 L waterThe established Impi tank split, subject to the selected Wet-Only or Wet & Dry model and final chassis engineering.15,000 L total — 10,000 L sludge + 5,000 L waterHigher-sludge-capacity arrangement requiring a suitable specialised 8×4 chassis, axle-load assessment and final legal-mass confirmation.

02Optional upgrades

These are upgrades beyond the standard equipment of the selected Wet-Only or Wet & Dry model. The standard 270° 5-inch hydraulic boom and main/auxiliary reels are not optional extras.

Wireless remote-control upgrade180 m main hose-reel upgradeMechanical water-level indicator360° 6-inch hydraulic suction boom upgradeDangerous-goods compliance package

Jetting and recovery planner

Plan both sides of the working cycle.

Nominal jetting durationAbout 17 minutesfrom the dedicated 5,000 L water compartment

Clean jetting-water capacity5,000 L on both configurations

Sludge capacity7,500 L

Selected vacuum airflow1,700 m³/h of airAir performance—not sludge flow.

Estimated tank air-volume displacementAbout 15.9 secondsAirflow-based sludge filling estimate; actual time varies with operating conditions.

Jetting time is a planning estimate based on 5,000 L divided by approximately 295 L/min. The displayed tank air-volume time divides sludge capacity by published vacuum airflow; it is an airflow-based planning reference, not a guaranteed sludge or liquid filling time. Practical recovery assumes the suction inlet remains fully submerged and varies with suction depth/lift, material density, solids, entrained air, hose diameter and length, restrictions and operator technique. The 15,000 L arrangement requires a specialised 8×4 chassis and legal-mass confirmation.

Define the duty

Material, pipe or surface, environment, access, distance and working cycle.

Set the performance

Pressure, flow, vacuum, tank capacity and operating duration.

Engineer the layout

Mounting, tank material, hose, reel, filtration, controls and boom.

Plan the lifecycle

Training, documentation, parts, maintenance and support after handover.

Product literature

Technical documents.

Combination units Werner Impi Combination Unit Download Combination units Werner Impi Wet Dry Combination Unit Download

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Product enquiry

Tell us what the unit needs to do.

Include the material, operating environment and any known pressure, flow, vacuum, tank or mounting requirements.