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Annual Stock Take Notice – September 2025
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Harben jetters & pumps have been a worldwide industry leader since our invention of the radial piston diaphragm ‘P’ type pump in 1970. The ‘P’ type pump was initially designed for use in the industrial cleaning market but after extensive research and a decade of successfully building water jetters we realized that there was a requirement for high quality, reliable drain jetters in the US. In 1981 Harben Inc. opened its doors in Atlanta, Georgia introducing the concept of high pressure – low flow jetting technology. In addition to the highly successful ‘P’ type pump, we are now also utilizing the ‘Hi-Q’ and Century pumps in our jetting equipment. Our quality, reliability, value and service are the reason why we have sold over 11,000 units worldwide.
- Drain Jetters Harben has been manufacturing innovative, high pressure, high quality drain jetters since 1980. We offer a complete range of top specification hydro jetters for sale: TRAILER JETTERS ENCLOSED JETTERS VAN PACK JETTERS TRUCK MOUNTED JETTERS ACCESSORIES Over the past 40 years, Harben has sold thousands of reliable and versatile drain jetters throughout the USA. We pride ourselves not only on delivering reliable, durable, affordable hydro jetters that get the job done but also on developing a personal relationship with our customers that includes free tips and advice, demonstrations, commissioning and instruction, along with exceptional after-sales support. As a quality assured company, all Harben hydro jetters are: Manufactured to the highest QA standards Fully compliant with industry regulations We also have: Type approval for our trailer mounted equipment Membership and accreditation of the WJTA (Waterjet Technology Association)
- Industrial Water Jetters Harben offers a wide range of industrial water jetters for applications where water jetting has become accepted as the most environmentally friendly solution. These may include: Tube and pipe cleaning Surface preparation Heat exchanger cleaning Tank cleaning Hydro-demolition Abrasive cutting Water hydraulics Mill scale removal High pressure flushing Hydrostatic testing The unique Harben radial piston diaphragm range of pumps are amongst the best performing and most reliable high pressure pumps on the market today, making them the ideal choice for many industrial applications. The P Type pump offers pressures from 2000 psi – 6000 psi with flow rates up 18 gpm The Century pump offers up to 10,000 psi with flow rates up to 40 gpm and the Aqua, 15,000 psi at 16 gom. With ATEX approval for use in explosive atmospheres, these pumps are truly versatile. Industrial water jetters have become the most efficient and versatile cleaning method in the modern world.
- Energy Sector High Pressure Systems At Flowplant we have been building energy sector high pressure systems for over 40 years. Our first units were just “rig safe” water jetters but we now have a full range of products for numerous applications. Water jetting Umbilical flushing Hydrostatic testing Chemical cleaning Sub sea cleaning Cold cutting Surface preparation Compliance Our engineers have an extensive knowledge of the stringent regulations governing high pressure pump systems and their use on and offshore. We can build systems to meet the space, lifting and environmental restrictions found offshore. We are fully conversant with the current directives and standards governing the general design of high pressure fluid pumping systems. For stricter offshore environments we will ensure compliance with ATEX Directive 2014/34/EU, DNV 2.7-1, Norsok Z015, IECEx and many API regulations. Our Pumps Flowplant manufactures the Harben radial piston diaphragm pump. This unique pump is ideally suited to pumping low viscosity fluids such as MEG, water based hydraulic fluids and scale inhibitor, at pressures up to 700 Bar. It has a seal free design and the pumped fluid is separated from the pistons making it unique amongst high pressure pumps. The Aqua type triplex plunger pump, also manufactured by us, is a robust…
- Duct Desilting Jetters We have been building our cable duct desilting jetter for over 30 years and our machines have cleared thousand of meters of blocked ducts. They have significantly sped up the roll out of fibre optic cable and and helped civils avoidance – clearing old ducts that otherwise would have required dig up and replacement. Our cable duct desilting machines use the unique Harben diaphragm pump to create a pulsing water jet that can clear silt blockages from long lengths of underground cable duct. Silt trapped in long underground cable ducts can be difficult to remove but our duct desilting jetter can clear even the toughest blockages in minutes. A powerful water jet first loosens and then washes away compacted dirt. This leaves the duct clear, so that engineers can easily pull through additional fibre optic cable. The Flowplant duct desilter jetter range extends to three models. TRAILER MOUNTED for the longest and most heavily blocked ducts VAN MOUNTED for ease of use around cities and congested areas MINI UNIT for the smallest network ducts Hundreds of our desilters have since been used to unblock and desilt thousands of kilometres of fibre optic cable. Much development has taken place since…
- Custom Build High Pressure Systems Custom Build High Pressure Systems Flowplant can offer consultancy and technical assistance on a wide range of high pressure fluid pumping applications. We are able to provide custom design solutions across all applications. Some of our recent projects include: Multi skid water jetter for local installation High pressure pump skid for use in a nuclear reactor Recycling system for waste material High pressure test rig with fast fill and chemical injection Umbilical flushing unit with severe space limitations Drain jetters for Zone 2 hazardous area High pressure filter test rig Broad Experience Our experience with low viscosity water based hydraulic fluids has proved invaluable to many of our clients, saving them money and reducing downtime. Flowplant’s engineering knowledge extends beyond that generally found in the oil hydraulics industry and our experience with high pressure control valves up to 1000 bar is often of particular value. Our sales engineers are happy to visit client sites, see the issues first hand and call on 50 years of application experience to provide compliant custom designed and cost-effective solutions. Life Long Service Flowplant equipment is constructed to exacting standards. To remain compliant and operating at optimum efficiency equipment must be serviced and maintained by…
- High Pressure Pumps The unique Harben radial piston diaphragm pumps are the best performing and most reliable high pressure diaphragm pumps on the market today. Harben pumps offer many benefits across different applications and industries. These include; Unrivalled reliability and low running costs Pump can run dry without damage Filtration to 150 microns Pumps low lubricity fluids with ease Has multi-cylinders therefore minimal pulsation Unequalled continuous running capabilities Compact and lightweight Simple to pressure compensate The Harben radial piston diaphragm pumps features a multi-cylinder design and can operate at speeds up to 1,300 rpm; this ensures pulsation free operation. Its tubular diaphragm pumping chambers are ideally suited to high pressures and the seal-less pistons never require repacking. All the moving parts are immersed in hydraulic oil; moving parts in contact with the pumped media are limited to the diaphragm, inlet and delivery valves. This gives the Harben radial piston pump has the unique ability to run dry without damage. This pump design design means fluids filtered to only 150 microns can be successfully pumped, whereas conventional plunger pumps require filtration to 50 microns. Our Harben high pressure pumps are used in numerous applications where their unique operating advantages have earned them an enviable…
- Neolith Building Cleaning Chemicals
- Plant & Boiler Units With over 50 years of specialised engineering expertise, Flowplant leverages its wealth of knowledge and skill to introduce our latest innovations in plant and boiler units. This addition represents a cutting-edge expansion of the Flowplant product line, combining our top-tier water process engineering with a selection of high-quality boiler plant room equipment. The result? A winning combination that delivers robust durability and a seamless, uninterrupted supply of heating and hot water for all your scheduled and emergency requirements. Whether you’re in search of a permanent plant room installation or an immediate solution to address your hot water and heating needs, Flowplant stands ready to assist. We provide flexible options for hire or purchase for our plant and boiler units, ensuring that you receive the support you need, precisely when you need it. Experience the reliability and excellence that Flowplant brings to every aspect of water process engineering and boiler solutions. Engineered with high precision, aligning with our core engineering vision for excellence. These units are versatile and suitable for both proactive and reactive maintenance needs. Incredibly versatile, adapting to a wide range of applications and requirements. These units are built to last, with robust construction that ensures longevity and…
- Spares & Accessories
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- Best Sellers Take a Take a look at our range of jetters accessories. All designed to get the maximum performance from your high pressure jetter.
- Water Jetting Nozzles
- Cleaning Nozzles
- Descaling Nozzles
- Unblocking Nozzles
- Root Cutting Nozzles
- Duct Desilting Nozzles High pressure cleaning nozzles suitable for cleaning and clearing fibre optic cable ducts
- Water Jetting Gun Nozzles MORE PRODUCTS TO BE ADDED SHORTLY Flowplant supply a wide range of nozzles that can be fitted and used with water jetting guns for surface preparation. From simple round jet or fan jet nozzles, to high quality rotary nozzles with rotation control, we can supply products for many different requirements. Operating pressures up to 2800 bar.
- 1/4″ Connection
- 3/8″ Connection
- 1/2″ Connection
- 3/4″ Connection
- Flowplant Nozzles
- StoneAge Nozzles Harben Inc. are proud suppliers of the popular Warthog nozzle manufactured by StoneAge Inc. As one of the world’s leading manufacturers of high pressure water blast tools their products have been an industry standard for over 30 years.
- Reaper Nozzles The Reaper family of descaling nozzles offer incredible performance on all jetters operating between 200 and 280 bar.
- High Pressure Pump Spares
- Water Jetting Accessories
- Water Jetter Spares
- Water Jetting Hoses
- Water Jetting PPE & Safety Equipment It is very important that all operators use the correct water jetting PPE (personal protective equipment) and safety equipment. Our jetting helmets are fully adjustable and meet all current legislation. They are designed for high pressure water jetting operators and provide hearing, head, face and chin protection. Our jetting boots have been specially designed to withstand a water jet up to 800 bar (11,600 psi) accidentally passing over the top of the foot (metatarsal), an area that is left exposed by many other wellington boot designs. Such accidents can happen when using a jetting gun for washing down or surface cleaning. They are resistant to oils, petrol, dilute acids and alkalis and have a slip resistant sole and energy absorbing heel . The boot is designed to meet EN345-54 and DIN 2 3329. The WJA safety sign is a 340mm x 477mm foldable and waterproof sign with tough nylon eyelets making it easy to secure in place with ties or bungee straps.
- RIDGID tools and accessories RIDGID tools are know worldwide as industry leading products that allow professionals to complete jobs more quickly and reliably. Flowplant are pleased to be able to offer a range of RIGID accessories and tools that compliment our own range of drain and sewer cleaning equipment
- TST water jetting safety wear TST are a leading European manufacturer of high quality products for operators personal protection for water jetting and high pressure cleaning projects.
- CoverUp Key The CoverUp Key is a slide hammer action tool that saves you EFFORT and MONEY when it comes to releasing access covers.
- Special Offers We are pleased to offer products listed here at a special price. These items will change on a regular basis when offers expire. There will be occasions when there are no products available – in this case we thank you for your interest and please come back another time.
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