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          • 40-1000-15 & 40-1050-10
          • 36-9950-15AX & 36-9960-15AX
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ProductsAccessoriesPump Controls & System ComponentsHydraFlex™ Units

HydraFlex™ Units

Hydrostatic Drive System

The new HydraFlex™ units from NLB give you the most operating flexibility you’ve ever had. They’re also the industry’s most eco-friendly, providing instantaneous dry shut-off and fewer emissions. This ground-breaking innovation features a hydrostatic drive instead of a traditional PTO, making pump speed independent of the engine. It puts full control in your hands, letting you right-size flow, speed and horsepower to match the job.

Independent pump control lets you run the pump anywhere from 100 to 523 rpm, with much less vibration (up to 80% less). It also eliminates water on the ground, since the pump stops working before the engine winds down. No dump valve is needed.


HydraFlex units are compatible with NLB’s popular eSync™ technology and deliver the same safety benefits. eSync wireless technology lets operators control the pump from their lance, foot box or remote pendant, at distances of up to 700 feet.

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HydraFlex units have a smaller footprint than PTO-driven units. They are also less susceptible to wear, need less maintenance, and operate more quietly since the engine runs at a lower rpm. Furthermore, the hydrostatic drive has allowed NLB engineers to relocate the engine and pump, providing easier access to the fluid end as well as an optimized center of gravity, which lets customers use a lighter, lower-profile trailer.

Contact our team of experts today to learn more about the advantages of HydraFlex.

Request a Quote
View Brochure

Industrial Engine

The pumping system includes a continuous-duty six-cylinder diesel engine:

  • Model 305 – 300 hp (224 kw)

Trailer Mounting

  • Size: 17′ long x 7’4″ wide x 6’6″ tall Approx. (5.2 m long x 2.2 m wide x 1.9 m tall)
  • Weight: 9,990 lbs. (4,531 kg) approx.
  • Heavy-duty tandem axle design
  • 15″ wheels (38.1 cm)
  • D.O.T. lighting package
  • Heavy-duty fenders
  • Electric brakes
  • Industrial-grade enamel paint

Unit Features

  • Slow running plunger pump built from high-grade stainless steel, provides unprecedented reliability
  • Convertible pump design
  • Hydraulic pressure monitoring to control the throttle
  • Lightweight and trailer mounted for ease of mobility

Engine-Driven Pumping Assembly

  • Slow-running NLB Model 225 reciprocating pump
  • Flow ranges: 10K – 8.2 to 42.9 GPM, 20K – 4.1 to 21.4 GPM, 40K – 1.9 to 9.9 GPM
  • 80 gallon (303 liter) steel fuel tank
  • 12-volt electric start
  • Inlet water filter
  • Oil-filled pressure gauge with snubber
  • Accessory manifold with by-pass valve

HydraFlex units are eSync™ compatible providing you the option to link wirelessly with eSync accessory tools (hand lance, foot control, pendant) for remote water jetting control. Incorporating the tools is easy!

Learn More
SPECIFICATIONSPRESSUREFLOW RANGE
HydraFlex™ Units40,000 psi (2,800 bar)1.9 gpm (7.1 lpm) -9.9 gpm (37.4 lpm)

$0.00 Add to Quote

20,000 psi (1,400 bar)4.1 gpm (15.5 lpm) - 21.4 gpm (81.2 lpm)
10,000 psi (700 bar)8.2 gpm (31.0 lpm) - 42.9 gpm (162.3 lpm)

Related Equipment

NLB’s exclusive eSync system dramatically improves operator safety and convenience while almost eliminating wasted water.

eClutch™ & eSync ™

NLB’s compact vacuum systems are designed to efficiently collect and contain water used during concrete operations, ensuring a cleaner and more controlled work environment.

Vacuum Recovery

Learn more about our complete line of high-pressure hoses for all popular working pressures

Hoses

Have Questions?

Reach Out to Our Expert Team Today!

At NLB, we're dedicated to assisting you. If you're uncertain about which product is best for your application, our team is ready to help you find the perfect solution. If we need to customize a product to fit your specific needs, we're prepared to do so! Simply give us a call or fill out the form, and one of our experts will be in touch with you shortly.

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