Municipal sewer and water projects require precise excavation techniques to minimize disruption to existing infrastructure. Hydroexcavation, utilizing pressurized water for controlled excavation, offers a safe and efficient solution. Below we explore a range of equipment and supplies designed to optimize your hydroexcavation operations.
Dynablast Pratissoli KTX28A
Pratissoli KTX28A direct-drive water pump packages, distributed by Dynablast, offer 18.4 gpm at 2,900 psi at 1,450 rpm. They have a 30 mm male shaft, a 420 stainless steel manifold for protection from cavitation and run-dry seals with Kevlar Graphite rope. They are built into a compact mini skid design with a KTR coupler with purple spider between. They fit onto a SAE B flange with any 1-inch keyed shaft hydraulic motor of choice.
905-867-4642; www.dynablast.ca
Enz USA Hydro X
The Hydro X nozzle from Enz USA is available in 3/8-inch NPT or 1/2-inch connecting threads, and it can function at up to 5,000 psi with flow as low as 8 gpm. It combines a powerful, oscillating water jet with a high debris removal rate. A tungsten carbide front jet ensures a longer life than ceramic jets can offer. For quick and easy maintenance, a repair kit is available. Due to the nozzle’s simplicity, repairs can be made quickly and efficiently in the field with little downtime. For the operator’s safety, a plastic cover provides protection against harsh and sensitive environments.
888-369-8721; www.enz.com
Hydra-Flex Ripsaw HD The Ripsaw HD from Hydra-Flex is designed for the hydroexcavation industry to make potholing and digging easy. The 0-degree front stream rotates at an 18-degree cone of coverage, creating optimal angles to get jobs done quicker while using less water. It utilizes flow-straightening technology to ensure all water particles flow along one smooth path to create an efficient and powerful impact force. Built with heavy-duty coating, stainless steel housing, and tungsten carbide wear surfaces, its long-lasting, premium components stand tall against frost, shale, rocky soil and more. Its coating is nonconductive, which provides extra safety for both users and underground utilities. It is designed to be repairable — not replaceable — to extend the nozzle’s life so you’re back up and running in just 10 minutes.
952-808-3640; www.hydraflexinc.com
RNV Hydrovac2
The RNV Hydrovac2 can be placed on an RNV-approved 6-cubic-foot steel construction-grade wheelbarrow to create a portable hydrovac. It can vacuum down vertically to 12 feet to convey effluent sludge, sand and small aggregate. It can be combined with a pressure washer or air spade for another excavation solution. The unit weighs 42 pounds, requires a 120-volt AC, 15-amp power outlet and will run on a 2,200-watt generator or inverter.
607-786-2139; www.rnvac.com
