Industrial Water Jetting - MultiJet
Ultra Low Friction Labyrinth Seal System
Totally unique, our HP plunger pump labyrinth seal system is formed by circumferential labyrinth grooves between the plunger and the seal bushing, creating a low friction liquid seal. Our seal technology has helped us achieve the single most important advance in pump reliability, giving significant service life and uptime advantages over traditional packing seal technology. To prove it, why not ask us to demonstrate the ‘drop test’ to you?
Reduced Pump Maintenance
Repair when you want to, not when you have to….. With our labyrinth seal system design, emergency repairs to the high pressure pump whilst ‘on the job’ are eliminated. As labyrinth wear is gradual, over many thousands of hours, you will experience that scheduled repairs and maintenance are all that is necessary.
Robust Pump gearend
Our HP pump gearend incorporates critical standard features which are not included by many competitors. The gearend pressure lubrication system includes an oil filter and oil cooler.
A built-in lubrication pump ensures that oil is delivered to all bearing surfaces and that the oil is circulated through the on-board 25-micron oil filters to ensure maximum oil cleanliness: this, combined with our gearend oil cooler, which maintains pump lube oil at temperatures below 70°C, protects your high pressure pump power end even when operating on continuous duty, resulting in long term reliability.
Direct Drive - Efficient and Maintenance Free
The in-built speed reducer installed in the high pressure pump gearend allows direct drive from the diesel engine, eliminating the need for large ratio V-belt drives and additional guarding: this also eliminates bearing side load damage, and reduces weight and maintenance requirements whilst enabling an extremely compact unit design.
Water Tank
Heavy duty water tank, stainless steel construction, anti vibration mounted to chassis.
Electronic Throttle Control
Engine speed increases only when pressure is demanded. Saves fuel, saves water without needing hoses and cables for actuation.
Performance Options
Multi performance options up to 3,000 bar (43,500 psi) via a simple conversion kit installation.
Boost Pump
Fitted as standard, eliminates cavitation and guarantees inlet water feed pressure.
Direct Drive
Direct drive through flex coupling. No Belts, No Side Loads.
Safety Shutdowns
• Pump - low inlet water pressure
• Pump - high oil temperature
• Pump - high inlet water temperature
• Pump - high discharge pressure
• Engine - low oil pressure
• Engine - high water temperature
• Water tank - low level.
Hammelmann Pumps
MultiJet units feature the world-leading Hammelmann range of high pressure and ultra high pressure pumps.
Inlet Water Filter
Bag type inlet water filter, stainless steel construction, protects the HP pump from damage due to dirt/abrasive contamination from feed water supply. Our ‘fast clamp’ system allows quick and simple filter replacements.
Optional Bypass Regulator Control Valve
Minimise water use. Local or remote hydraulically operated pressure control.
Diesel Engine
Calder selects only the most reliable market-leading, emissions-compliant engines which offer low fuel consumption and global aftermarket spares and support networks.
Lube System
Pressurised gearend lube system, oil cooler and filter.
Hood Cover
GRP noise-reducing cover, reduces noise emissions, protects components from damage and offers excellent weather protection.
Control Panel:
Sealed stainless steel enclosure
Functions:
Start-stop, pressure up/down, engine speed
Shut Down Fault Lamps:
- Pump - low inlet water pressure
- Pump - high oil temperature
- Pump - low oil pressure
- Pump - high inlet water temperature
- Pump - high discharge pressure
- Engine - fault
- Water tank - low level
- Pump - low inlet water pressure
Diesel Engine:
Calder selects only the most reliable market-leading, emissions-compliant engines which offer low fuel consumption and global aftermarket spares and support networks.
Performance Conversion Kits
Maximise the potential of your pump unit and enable MultiJet to multi-task with our ‘Performance Conversion Kit’ which will enhance the range of applications you can tackle by increasing your operating pressure range up to 3,000 bar (43,500 psi).
Performance conversion kits can be fitted at any time during the life of your MultiJet and take less than 30 minutes to install. Typical conversions available include but are not limited to 3,000 psi, 5,000 psi, 7,500 psi, 10,000 psi, 15,000 psi, 21,000 psi, 36000 psi and 43,500 psi.
Optional Features
- Spare wheel with mounting bracket
- Optional extended radiator for operating in high ambient temperature environments up to 50⁰C.
- Optional Chalwyn type overspeed valve available.
Trailer:
Road-going trailer – short wheel base, 2.5 tonnes maximum gross weight, free standing.
Chassis:
Unique one piece low centre of gravity chassis design offers excellent towing capability.
Towing & Tow Eye:
Torsion axles provide smoother towing. Tow eye or ball hitch available
Jockey Wheel:
Stable operation, jockey wheel provides increased operational stability.
Spark Arrester:
Exhaust spark arrester fitted as standard.
Fuel Tank:
200-litre capacity fuel tank (approx. 8 hours running time) incorporated into chassis offering reduced weight and low centre of gravity.
Optional Features
- Spare wheel with mounting bracket
- Optional extended radiator for operating in high ambient temperature environments up to 50⁰C.
- Optional Chalwyn type overspeed valve available.
Trailer:
Single axle road-going trailer – short wheel base, 1.8 tonnes maximum gross weight.
Chassis:
Unique one piece low centre of gravity chassis design offers excellent towing capability.
Towing & Tow Eye:
Torsion axles provide smoother towing. Tow eye or ball hitch available
Jockey Wheel:
Stable operation, jockey wheel provides increased operational stability.
Spark Arrester:
Exhaust spark arrester fitted as standard.
Fuel Tank:
200-litre capacity fuel tank (approx. 8 hours running time) incorporated into chassis offering reduced weight and low centre of gravity.
Optional Features
- Spare wheel with mounting bracket
- Optional extended radiator for operating in high ambient temperature environments up to 50⁰C.
- Optional Chalwyn type overspeed valve available.
Trailer:
Site trailer design - turntable axle - highly manoeuvrable, max speed 6Kph.
Chassis:
Rigid box style chassis suitable for site operation.
Towing & Tow Eye:
Tow eye or ball hitch available
Spark Arrester:
Exhaust spark arrester fitted as standard.
Fuel Tank:
200-litre capacity fuel tank (approx. 8 hours running time) incorporated into chassis offering reduced weight and low centre of gravity.
Experience the very best in high pressure water jetting systems.
Calder industrial specification MultiJet units are designed and certified to undertake industrial market, onshore high and ultra high pressure waterjetting applications in non-hazardous area locations around the world and are constructed to allow operation in refinery and petrochemical plant environments, construction and civil engineering sites or nuclear facilities.
Whatever your industrial application the MultiJet can be safely used for UHP coating removal and surface preparation, heavy duty internal pipe cleaning, heat exchanger cleaning and waterjet abrasive cold cutting of tanks, pipes and decks and other materials. As it is a dust-free technique, it allows other adjacent activities such as painting and lagging to continue, minimises the waste stream created, reduces clean-up time, is not weather dependent and when used in surface preparation operations is proficient at exposing the original profile without further erosion and guarantees the highest level of cleanliness of all surface preparation methods. Ancillary vacuum equipment can be used in conjunction with water jetting technology to contain all washings and contaminants.
Applications:
- UHP surface preparation of tank externals and pipelines
- Internal cleaning of tubes and pipes
- Heat exchanger internal tube cleaning and shell cleaning
- Ship hull cleaning and coating removal
- Hydro-demolition of concrete materials
- Abrasive waterjet cutting
- Road retexturing using UHP waterjet
- Tank internals using automated systems eliminating vessel entry by personnel.
