The HDP-500 high-pressure pump from Hammelmann Corp. is available on a low-profile trailer unit. It is powered via a 755 hp diesel engine and comes in both a packing-free fluid-end design or traditional high-pressure packed fluid end. The design of this pump unit complements the “L” Design 26,000 psi tank-cleaning head. The addition of the higher-pressure range allows for increased production when cleaning pipes, tanks and large vessels, while reducing water consumption. The units can be custom built on skids, trailers or into sound-damped containers. All units come standard with a rigid base frame with anti-vibration mounting feet; diesel engine; insulated spiral silencer installation with exhaust and rain cap, particle filter or Ad Blue; and an ES 2 electronic control and monitoring system with digital display for the pump and diesel engine that offers up to 45 percent in fuel savings with smart pump technology. Options include a pump head lifting device, automatic heating systems, water tanks and fuel tanks. 800/783-4935; www.hammelmann.com.