Liquid Pumps

Air Driven Liquid Pumps - Pneumatic Pumps

Maximator high pressure liquid pumps are designed to generate a variety of pressure using oil, water, and other fluids. The liquid pumps are designed to be compact in size while providing the requisite amount of applied pressure. Their ease of installation and operation make them a reliable and cost-effective product for demanding industrial applications.

The air driven liquid pumps are driven by pressures from the air or noble gases. These pumps have the capability to fulfill your specific needs, from low pressures of 580 psi to high pressures of 60,000 psi. This makes the Maximator high pressure pumps perfect for applications, which require stepped flow rates, and varied operating pressures.

High Pressure Technologies offers a variety of Maximator air driven liquid pumps. As there are numerous models to choose from, finding the right pump for an application can be a tough task for a customer. For this reason, we have provided the following steps to choose the right high pressure pump for an application.

1. Confirm the Application Fluid: Knowledge of the fluid to be pumped can reduce the amount of time needed to select a liquid pump. For example, if you know that the application will feature a combination of oil and water, then you can look at the PPO or S Series liquid pumps.

2. Determine Minimum Plant Air Pressure: Simply knowing the type of fluid is insufficient. The air pressure required to drive the fluid is also important. Once you have the minimum air pressure available in your plant, you can search for a pneumatic pump that meets your needs.

3. Decide on the Outlet Pressure: This point can be best explained with an example. Let us assume your application comprises chemicals. These chemicals need to be transferred at pressures between 60 and 10,000 PSI. If this is your requirement, then you should consider looking at the PPSF series.

4. Determine the Flow Rate: The flow rate required for an application can be established by answering a few important questions:

Flow rates can be further established by examining the outlet and air drive pressures of each pump.

At High Pressure Tech, we strive to ensure that your pump selection process is effortless without consuming excess time. Contact us if you have any further queries regarding Maximator air driven liquid pumps.

At High Pressure Tech, we offer a variety of Maximator air driven pumps to meet specific application requirements. Our liquid pump category consists of more than 20 different types of pumps, and pump series. Given below are some of the popular products that we offer.

PP Series: The PP Series pumps are lightweight and feature a rugged construction of anodized aluminum bodies. These air driven liquid pumps are capable of increasing pressures from 60 to 58,000 psi.

PPO Series: These pumps are specifically designed for applications comprising oil, or a combination of oil and water. The PPO pumps are known for their immense power and portability. They are also versatile, providing 8 pressure ratio options.

S Series: S Series pumps are designed for oil and oil-water applications. They are particularly useful for static and mobile applications. Available in five pressure ratios, these pumps provide pressures ranging from 105 to 14,500 PSI.

S-D Series: Pumps in this series are the double-acting version of the S Series products. The S-D Series pneumatic driven pumps can also be used in static and mobile applications. However, they provide five pressure ratio options, ranging from 105 to 14,500 PSI.

GX Series: The GX Series pumps are high flow products and provide pressures ranging from 540 to 14,500 PSI. They are the perfect choice for offshore applications, or where pump installation needs to be durable.

L Series: These liquid pumps are capable of providing pressures between 165 and 60,000 PSI. Maximator L Series pumps are constructed with stainless steel bodies. They can be provided in single and double acting models.

L-D Series: Maximator L-D series are double-acting pumps are designed for water or oil services. The L-D pumps dual inlet and dual outlet ports are deliver 50% more flow rate than the L series pumps with less pulsation. These pumps are available in various pressure ratios from 150 to 38,425 PSI.

LSF Series: Designed for chemical applications, the LSF Series pumps provide pressures ranging from 165 to 23,200 PSI. These air driven high-pressure liquid pumps are available in single acting models and can be provided with either a single or a double air drive head.

PPSF Series: Similar to the LSF series, the PPSF pumps are designed to assist chemical applications at pressures from 60 to 14,500 PSI. The single-acting pumps are provided with single and double air drive heads. A distance piece is used to separate the air drive and liquid sections.

PP-HL Series: This series comprises lightweight, and hand-operated pumps. They provide pressures up to 31,900 PSI. The PP-HL pumps have the capability to generate pressure even when there is no pressure available. They are ideal for pressure gauges and transducers.

GPD Series: The GPD Series liquid pumps are designed for applications, which require fast liquid filling. These double-acting pumps with single heads provide high discharge flows at high pressures. GPD pumps can handle water, chemicals, and hydraulic oils.

Water / Oil Service Air Driven Pumps
Type (Water/Oil) Model Ratio Max. Presure Displacement Cycle (cu. in.)
Small Displacement


PP4 1:4 580 psi 1.86
PP8 1:9 1,305 psi 0.90
PP12 1:14 2,030 psi 0.57
PP22 1:28 4,060 psi 0.28
PP37 1:46 6,670 psi 0.17
PP72 1:86 12,470 psi 0.09
PP111 1:130 15,000 psi 0.06
PP189 1:220 31,900 psi 0.04
Small Displacement – Hand Lever


PP22-HL 1:28 4,060 psi 0.28
PP37-HL 1:46 6,670 psi 0.17
PP72-HL 1:86 12,470 psi 0.09
PP111-HL 1:130 15,000 psi 0.06
PP189-HL 1:220 31,900 psi 0.04
Small Displacement – Double Air Head


PP111-2 1:260 36,250 psi 0.06
PP189-2 1:440 60,000 psi 0.04
Small Displacement – Triple Air Head


PP111-3 1:390 36,250 psi 0.06
PP189-3 1:660 60,000 psi 0.04
Medium Displacement


S15 1:17 2,465 psi 1.74
S25 1:25 3,625 psi 1.20
S35 1:39 5,655 psi 0.77
S60 1:61 8,845 psi 0.49
S100 1:108 14,500 psi 0.27
S150 1:156 14,500 psi 0.19
Medium Displacement – Double Acting


S15-D 1:16 2,320 3.45
S25-D 1:24 3,480 2.39
S35-D 1:38 5,510 1.54
S60-D 1:60 8,700 0.98
S100-D 1:107 14,500 0.55
S250-D 1:250 15,000 0.24
High Displacement


L10-VE 1:11 1,595 psi 5.49
L15-VE 1:16 2,320 psi 3.78
L25-VE 1:28 4,060 psi 2.15
L35-VE 1:40 5,800 psi 1.49
L60-VE 1:63 9,135 psi 0.94
L100-VE 1:113 15,000 psi 0.54
L150-VE 1:151 21,025 psi 0.40
L250-VE 1:265 38,425 psi 0.23
L300-VE 1:314 45,530 psi 0.20
L400-VE 1:398 57,710 psi 0.15
L500-VE 1:592 60,000 psi 0.12
High Displacement – Double Air Head


L10-2-VE 1:22 3,190 psi 5.49
L15-2-VE 1:32 4,640 psi 3.78
L25-2-VE 1:56 8,120 psi 2.15
L35-2-VE 1:80 11,600 psi 1.49
L60-2-VE 1:126 15,000 psi 0.94
L100-2-VE 1:226 30,450 psi 0.54
L150-2-VE 1:300 42,050 psi 0.40
L250-2-VE 1:530 60,000 psi 0.23
L300-2-VE 1:628 60,000 psi 0.20
L400-2-VE 1:796 60,000 psi 0.15
L500-2-VE 1:1038 60,000 psi 0.09
High Displacement – Double Acting


L10D-VE 1:10 1,450 psi 10.98
L15D-VE 1:15 2,175 psi 7.59
L25D-VE 1:27 9,915 psi 4.31
L35D-VE 1:40 5,800 psi 2.98
L60D-VE 1:63 9,135 psi 1.92
L100D-VE 1:113 15,225 psi 1.07
L150D-VE 1:151 21,025 psi 0.80
L250D-VE 1:265 38,425 psi 0.46
High Volume – Water/Oil Service




GX35 1:36 5,220 psi 6.71
GX60 1:66 8,700 psi 3.97
GX100 1:117 15,225 psi 2.20
GX170 1:177 15,225 psi 2.20
Very High Volume – Water/Oil Service


GPD-30 1:30 4,350 psi 31.00
GPD-60 1:60 8,700 psi 15.70
GPD-120 1:129 18,700 psi 11.20
GPD-180 1:192 27,850 psi 0.26
GPD-260 1:277 40,175 psi 0.17
Very High Volume – Double Air Head – Water/Oil Service


GPD-30-2 1:60 8,700 psi 31.00
GPD-60-2 1:120 17,400 psi 15.70
GPD-120-2 1:258 37,400 psi 7.40
GPD-180-2 1:384 43,500 psi 4.20
GPD-260-2 1:554 43,500 psi 2.90
Oil / Oil Water Service Air Driven Pumps
Small Displacement


PPO4 1:4 580 psi 1.86
PPO8 1:9 1,305 psi 0.90
PPO12 1:14 2,030 psi 0.57
PPO22 1:29 4,205 psi 0.28
PPO37 1:47 6,815 psi 0.17
PPO72 1:88 12,760 psi 0.09
PPO111 1:133 14,500 psi 0.06
PPO189 1:225 14,500 psi 0.04
Chemical Service Air Driven Pumps
Low Displacement


PPSF4 1:4 580 psi 1.86
PPSF8 1:9 1,305 psi 0.90
PPSF12 1:14 2,030 psi 0.57
PPSF22 1:28 4,060 psi 0.28
PPSF37 1:46 6,670 psi 0.17
PSF72 1:86 12,470 psi 0.09
PPSF111 1:130 14,500 psi 0.06
High Displacement


LSF10 1:11 1,595 psi 5.49
LSF15 1:16 2,320 psi 3.78
LSF25 1:28 4,060 psi 2.15
LSF35 1:40 5,800 psi 1.49
LSF60 1:63 9,135 psi 0.94
LSF100 1:113 15,225 psi 0.54
LSF150 1:151 21,025 psi 0.40
LSF250 1:265 33,200 psi 0.23
High Displacement – Double Air Head


LSF10-2-VE 1:20 3,190 psi 5.49
LSF15-2-VE 1:30 4,640 psi 3.78
LSF25-2-VE 1:54 8,120 psi 2.15
LSF35-2-VE 1:78 11,600 psi 1.49
LSF60-2-VE 1:118 15,000 psi 0.94
LSF100-2-VE 1:200 23,200 psi 0.54

Construction and Operations

The operation of high pressure liquid pumps is based on the principle of an oscillating pressure intensifier. In simple terms, the principle states that pumping can continue even if the pressure reduces. The pumps function using compressed air ranging from 1 to 10 bar. This allows the pump to continue its operation despite any pressure drops.

The construction of Maximator pumps is designed to support the oscillating pressure principle. They feature the following components:

  • Drive piston
  • Suction chamber
  • Air piston joint
  • Diameter plunger
  • Inlet check valve
  • Outlet check valve

The air piston joint is connected to the small diameter plunger. The pressure ratio is the key to determining the maximum outlet pressure. Higher outlet pressures can be gained by simply increasing the pressure ratios.

The pumps are self-priming, and generally, do not require the use of airline lubricator. The liquid flows into the suction chamber due to the upstroke of the drive piston. This suction effect causes the inlet check valve to open, while and the outlet check valve is closed. Down-stroke generates the required pressure for an application. The generated pressure causes the inlet check valve to close, and the outlet check valve to open. The pressure is then transferred to the application equipment.

Maximator pneumatic liquid pumps consist of automatic cycles. The cycles slow down when there is a build-up of pressure. Once the output pressure forces are equalized, the pump stops automatically. The pump restarts if there is an increase in the air drive pressure, or a slight drop in.

Maximator high pressure pumps can provide a variety of benefits to technical applications in various industries.

  • The pressure can be regulated by using one of two components – manual pressure control units, or pneumatically triggered valves.
  • The pneumatic liquid pumps are extremely appropriate for application in explosion-proof areas.
  • Substitution of leakages by automatic additional delivery of liquid from the pump
  • The pump does not consume excess energy even when it is maintaining the requisite pressure for long periods of time.
  • No heat loss takes place during the pressure holding stage.
  • The high pressure liquid pumps provide ease of installation and quiet operation.
  • The pump is self-contained. The product only requires connections for the suction, pressure lines, and air supply.

Maximator high efficiency pumps are ideal for a broad variety of oil, water and chemical applications.

Chemical and Offshore Applications

  • Coolant injection
  • Underground mining
  • Concrete restoration
  • Intermittent waterjet cutting
  • Rock and coal consolidation
  • Tunnel and bridge construction
  • Chemical fluid transfer and pressurization
  • Inhibitor injection of methanol and glycol in oil wells
  • Test pressure generation for mandrel extraction machines
  • Brake fluid, skydrol, transmission fluid and power steering fluid for airplanes and automobiles.

Oil Service Pumps

  • Lubrication systems
  • Lifting and Jacking:
    • Lifting tables
    • Beam jacking
    • Aircraft jacking
    • Scissor jack lifts
  • Hydraulic Operations:
    • Chucks
    • Punches
    • Pin presses
    • Valve actuation
    • Clamping devices
  • Presses:
    • Filter presses
    • Hydraulic presses
    • Cold isostatic presses
    • Hydraulic press actuation
  • Tooling and Tightening:
    • Crimping
    • Cable shears
    • Roller tensioning
    • Torque wrenches
    • Pipe bending tools
    • Actuating cropping
  • Testing:
    • Pressure testing
    • Tensile test machines

Tips and Warning

The following tips and warnings can help ensure durable operation and performance of Maximator air driven liquid pumps.

  • The pump’s outlet pressure can be set easily via an air regulator.
  • The model numbers of each pump reflect the nominal pressure ratios, while the technical data indicates the exact ratios.
  • In an application, the minimum liquid pressure can be calculated by multiplying the pressure ratio with the available shop air pressure.
  • The performance of the pneumatic liquid pump can be affected by a number of conditions. These include dirty filters, deficient inlet sizes, and freezing of the pilot valves.

Standard Air Driven Pump Systems

High Pressure Technologies offers complete packaged, standard & custom turn-key systems incorporating the Maximator Air Driven High Pressure Pneumatic Pumps for a variety of fluid and pressure applications.

High Pressure Technologies systems can be supplied for oil, water & chemical service and for outlet pressures from 30 psi to 100,000 psi.

Customized Pump Systems are designed around a basic core package, letting you choose the optional equipment you want to complete the system, making it ideal for your application.