High-pressure pumps

The MAXIMATOR air-driven propulsion concept brings you a whole range of advantages:

Pressure regulation using manual pressure regulator or pneumatic valve
Air-driven propulsion is the optimal choice for areas requiring protection against explosion
The pump stops after reaching the end pressure
Reaction to seepage by automatic additional pumping
Zero energy consumption in case of prolonged pressure holding
Zero residual heat during pressure holding phase
Easy installation and trouble-free handling of the device. All that is necessary is a connection a to source of compressed air and to a suction and pressure pipe
Operationally safe devices with easy installation and low maintenance

MAXIMATOR provides professional consulting, design, and delivery of complete systems for optimal, economic execution of your tests, and offers comprehensive services.
MAXIMATOR pumps are available in 5 specially designed sizes - M, S, G, GX, DPD. They differ in the capability to be used for different pumped media, graded flow rate, and maximum permissible operating pressure. MAXIMATOR offers a suitable liquid pumps for every individual requirement.

Betriebsanleitung-Pumpen-de-2016.pdf

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General instructions for optimal operation
of air-driven pumps

Mounting position

Generally, MAXIMATOR pumps can be operated in any position, but a vertical position guarantees maximum service life of the sealing.

Connection parameters

Caution! Please make sure the screws and pipes eventually used for further connecting of the pump are appropriate for the given pump´s pressure range. In order to ensure the pump´s functionality (pressure and flow), the value of the pump connection parameters must not be reduced under any circumstances.

Pneumatic connection and commissioning

The connection for compressed air is located on the body of the control block. A second connection for direct air supply to the pilot valve is available for pumps of the S...D, G and GSF series. This connection makes it possible to turn the pump on and of using magnetic valves with a small nominal diameter.

Compressed air filter with a water separator must always be installed in the air pipe before the pump. As optional accessories, we sell the filter, the water separator, the shut-off valve, and the pressure regulator with a control manometer as a complete unit named “Pneumatic control unit C1 or C2 or C3“, depending on the specific pump series

Compressed air lubricator is usually o necessary, because the pump was lubricated with barium grease during assembly. If the air used for the pump´s operation is very dry and the operating time exceeds 50 %, a compressed air lubricator should be installed in the system.

Operating temperatures of MAXIMATOR pumps

normally between –20°C and +80°C. Pumps with sealing version –VE for water pumping may only be used at temperatures of up to +60°C. Temperatures up to +80°C are permissible for short-term operation. For the use of pumps in an outdoor environment at temperature of 0°C and lower, we deliver special pumps in above-standard version.

Recommended hydraulic oils

Flawless functionality and effectiveness of the pumps basically depends on the quality of the hydraulic oil used.
For operation, we recommend hydraulic oil with a viscosity between 46 - 68 cst, e.g., made by a hydraulic oil manufacturer as per DIN 51524 T2; DIN 51519; ISO VG 46 ARAL: VITAM GF 46

BP: ENERGOL HLP 46
ESSO: NUTO H 46
SHELL:

TELLUS 46
HYDROL DO 46
HYDROL HV 46

DEA: ASTRON HLP 46

Compressed air quality requirements

Compressed air should show class 3 to 4 (solids/water/oil). According to the recommendations of the European Committee PNEUROP 611/1984 (PNEUROP = European Committee of Manufacturers of Equipment for Compressed Air, Vacuum pumps, and Pneumatic Tools), this means:

Solid substances :
Maximum particle size of 5 µ
Maximum particle concentration of 5 mg/m3

Dew point :
+10° = water content of 9.4 g/m3
do +2°C = water content of 5.6 g/m3

Oil content :
1.0 to 5 mg/m3
The above quality of compressed air ensures optimal service life of sealing and guiding elements.

MAXIMATOR pumps are suitable for hydraulic applications. The criteria listed below should make it easier for you to choose and order the optimal pump for our specific application:

1. Pressure liquid

The choice of the pump basically depends on the pressure liquid used and on the specific requirements arising from the material of the components that come into contact with the medium and sealing materials. MAXIMATOR pumps are suitable for various pressurized liquids. For the two most important media – oil and water – we offer standard pumps (see also the “Order Code“ of individual pump series).

2. Available pneumatic pressure

MAXIMATOR are driven by compressed air under a pressure of pL = 1 up to maximum of 10 bar (14.5 to 145 psi).

3. Required operating pressure and flow rate per operating pressure

The operating pressures of the pumps shown in the tables are based on pneumatic pressure of pL = 10 bar (145 psi). The real operating pressure you have to set for your specific case you obtain by multiplying the transmission ratio of the given pump and the available pneumatic pressure, i * pL.

The flow rate of Qmax listed in the tables is reached at a pneumatic pressure of 6 bar and free flow against the discharge nuzzle.

In the case of a special discharge pressure, find the real flow rate in the flow charts on pages 20 to 23 of the catalog.

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Hydraulic pumps – The propulsion concept of MAXIMATOR pumps

MAXIMATOR high-pressure pump is an ideal solution for generating high pressure using oil or water for various technical applications. MAXIMATOR pumps are driven by compressed air at pressures ranging from 1 to 10 bar. Generally, the design principle to the principle of an oscillating pressure multiplier which is redirected to the end positions (suction/pressure stroke) using an impulse 4/2-way valve. The gear ratio of MAXIMATOR pumps, which is simultaneously used for setting the appropriate operating pressure, results from the area of the large air piston and the small high-pressure piston. High operating pressures result from a large gear ratio.

The type marking of MAXIMATOR pumps basically reflects this gear ratio. For exact information, see Technical Data of the specific pump. The operating pressure can be easily preset with simple compressed air regulation in the air pipe. The operating pressure can be calculated by multiplying the propulsion pressure and the gear ratio of the pump. MAXIMATOR pumps perform self-priming.

Generally, a compressed air lubricator is not necessary. Due to the upward movement of the propulsion piston, the pumped medium reaches the suction side of the pump. The inlet valve opens and the outlet valve closes. During the return stroke, pressure is created on the pressure side. The inlet valve is closed and the outlet valve is open. When the pressure drops, MAXIMATOR hydraulic pumps automatically restart until the pressure is equalized.

After reaching the end pressure, which can be set using the pressure regulating valve, the pumps´ stroke frequency is reduced until they come to a complete stop while equalizing the forces between the driving and high-pressure sides. As long as the pressure does not drop on the high-pressure side, the pressure is maintained steady without energy consumption.

The performance of the pumps may decline due to various influences, such as freezing of the silencer or pilot valve, which is caused by high humidity of the air in the pressure pipe, choking of the air connection or contamination of the filter. Make sure to prevent reduction of the specified nominal values to ensure optimal operation of the pump.

If you have any questions about the pump´s operating conditions, please contact MAXIMATOR. We provide you with comprehensive technical consulting and competent services.

In cases of 1/2 or even 1/3 of pneumatic pressure, single-action pumps with two or three pneumatic pistons reach the same end pressures as a single-action pumps with one pneumatic piston.

Using dual-action pumps may increase the flow rate by approx. 50 % compared to single-action pumps.

MAXIMATOR air-driven pumps

3999.0480, language: German, version: 08/2014

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MO and S series

Thanks to the compact and light-weight design of the various gear ratios, these pumps are an interesting choice for many hydraulic oil systems. They are available in single-action and dual-action versions.

Oil pumps up to 1,000 bar (14,500 psi)

Lifting and clamping – lifting tables, scissor lifts, hydraulic systems, and load shifting
Hydraulic applications – clamping fixtures, punches and presses, chucks, cylinder control
Pressing – isostatic cold pressing, filter presses, hydraulic presses, pressure boosters for presses, and protection against overloading during pressing
Tools – operation of cutting and bending equipment, scissors for cable cutting, tools for pipe bending, cylinder clamping, and torque wrench operations
Assays and testing – devices for testing durability under pressure and tension
Lubrication systems

M and G series

The pumps of the M and G series are available in single-action and dual-action version, or in one-stage or two-stage (M and G) or three-stage (M only) version. Components that come into contact with the media are made of stainless steel and are designated for use in the water hydraulic segment.

Water pumps and oil pumps up to 7,000 bar (101,000 psi)

Hydrostatic tests – valves, tanks, accumulators, pressure switches, hoses, pipes, manometers, bottles, metering transformers, pipe lining for drilling, well cap fixtures, gas bottles, and components for aviation and space industries
Overpressure destruction tests and service life tests of the above components
Calibration of manometers and metering transformers
Water-jet cutting and cleaning
Leakage testing
Emergency shutdown systems for oil and gas rigs
Pressurization of pressure vessels for inspection of various components

MSF, GSF and GX series

Pumps of the MSF and GSF series are similar to those of the M and G series above. The design of the intermediate chamber and the seepage hole as well as the PTFE sealing meets the specific requirements of the chemical industry.

Pumps of the GX series are characterized by large flow rate. The robust design, stainless-steel components that come into contact with the media, and stainless-steel outer casing make them an ideal choice for the rough conditions in the oil and gas industry

Pumps for chemical, oil, and gas industry up to 1,450 bar (21,025 psi)

Injection of preservatives, such as methanol and glycol, into piping systems
Injection of cooling media
for tests in aviation and automotive industry – brake liquid, skydrol, fluids for transmissions and steering systems
Replacement of chemical fluids and pressurization

MAXIMATOR pumps for special applications

DPD pumps are large, dual-action pumps with a large flow rate at a high operating pressure of up to 2,100 bar (30,450 psi).

Water-jet cutting (interrupted operation)
Pressure boosting for extrusion of burrs from hoses

Injection pumps for one-component and two-component materials

Pumps for concrete

Feeding pumps

Mining
Rock stabilization
Construction of tunnels and bridges
Restoration of concrete structures