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External adjustable pressure relief valve (behind sight glass)
Lower air consumption and operating costs
Return-to-tank port for use in remote valve applications
Internal pressure relief valve provides overload protection
High efficiency cast aluminium air motor
Air pendant for remote control operation |
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The Enerpac ZA4 - The Next Generation in Air Powered Hydraulic Pumps
Introducing the ZA4-series, Enerpac’s newest high-pressure hydraulic air-driven pump designed for in-plant, industrial applications and medium to large construction projects. The new ZA4 pump features the Z-Class high efficiency pump design—a design known for its higher oil flow and bypass pressure. Whether powering a cylinder or operating a tool, the ZA’s industry-leading hydraulic flow at 700 bar will improve productivity in any application. And, because of their ATEX 95 certification, the Enerpac ZA Pumps are safe for use in environments such as refinery, petro-chemical and oil & gas processing.
Reservoirs come in 4 to 40 litres capacities. A sight gauge on the 4 and 8 litres models and a level gauge on the larger reservoirs allow quick and easy oil level monitoring. The manual control valves on ZA4-series pumps come with built-in user adjustable pressure relief valve. Standard models are available to fit most applications and custom configurations, when required, are available from an extensive ordering matrix.
The optional heat exchanger warms exhaust air to prevent freezing and cools the hydraulic oil.
Enerpac ZA Series Air Hydraulic Pumps—tough, dependable and innovative.
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- Air Drive line lubrication not required.
- Self-priming for immediate operation.
- Compatible with all hydraulic fluids, plain water, distilled &
deionized water, solvents, mild chemicals and most liquefied
aerosol type gases.
- Range of models to provide up to 80,000 psi intermittent
output pressure.
- Stainless steel hydraulic body, check valves, and trim are
standard, except -4 and -7 models.
- Alternative gases that can drive the pump include nitrogen,
vapor from liquefied gas, pipeline natural gas and sour
natural gas with proper modifications.
- Offer a wide range of standard modifications. |
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The air-hydraulic BELL units are meant to operate single and double acting cylinders depending on the versions. This type of pump can be applied in all the hydraulic applications, especially in those which require high performances and pressures, and in all cases in which the oil flow must be modulated and controlled.
There are many applications, in the industiial field, such as stirrup, presses, extractors, pullers, hose fitting, bead breakers, clamping equipments, as well as in the automotive field for example car and motorbike lifts, pulling bars for bodyworks straightening benches. |
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The ZA4T-Series air hydraulic torque wrench pumps can be used with any brand of 700 and 800 bar single- and double-acting hydraulic torque wrenches. The ZA4T come standard with air regulator-filter-lubricator unit, heat exhanger and pressure gauge. The standard pressure gauge with transparent overlay-scales in Nm and Ft.lbs provides accurate torque settings and precise repeatability for all Enerpac torque wrenches. The easy to access adjustable pressure relief valve allow accurate and quick setting of hydraulic pressure. The air motor consumes between 600 - 2840 l/min at 4 - 7 bar dynamic air pressure. ZA4T-Series two-speed air pumps come with 4 or 8 litres reservoir. Through the years the Enerpac line of bolting tools, such as hydraulic torque wrenches and alignment tools, has gained excellent recognition by the offshore and oil & gas markets worldwide. Through its worldwide operations Enerpac is be able to offer application-based solutions and hydraulic systems for the offshore and other industries
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