HSL-35 Pneumatic-driven Hydraulic Booster Pump for High-pressure Hydraulic Systems

Product Introduction

Discover the HSL-35 pneumatic driven liquid booster pump, engineered for general fluid transfer and high-pressure system integration. Rated for 5,600 psi output, this air-driven hydraulic pump delivers compact performance with 24.6 cm³ displacement per cycle. With 1/2-inch FNPT ports, the HSL-35 is ideal for OEM equipment, pressure testing, and industrial fluid power applications.

Product Information

Model:

HSL-35

Rated ratio:

one thirty-nine

Maximum supply air pressure:

150 psi

Maximum rated output pressure:

5,600 psi / 386 bar

displacement per cycle:

1.50 cu. in. / 24.6 cm³

The HSL-35 pneumatic liquid booster pump brings compressed-air drive to industrial liquid pressure systems. With a maximum rated output of 5,600 psi (386 bar) and a displacement of 24.6 cm³ per cycle, it gives equipment builders a defined option for high-pressure circuit design.

The model also uses 1/2-inch FNPT connections for the air drive, liquid inlet, and liquid outlet. Together, these specifications help OEM engineers and purchasing teams review pressure capacity, liquid delivery, and connection needs within one component selection.

Specify the HSL-35 for technical review when your project calls for an air-driven pump within its published operating limits.

From Component Testing to Production Equipment

High-pressure equipment often has two linked needs: reaching the required pressure and delivering enough liquid within the available time. Therefore, selecting a pump starts with the complete task.

The HSL-35 can be considered for projects such as:

Component pressure test benches: Assess the required test pressure alongside the volume needed to fill the test circuit.
Hydraulic equipment assemblies: Match the pump to the pressure and liquid demand of the connected devices.
Industrial liquid pressurization units: Review the working fluid, inlet supply, outlet pressure, and operating schedule together.

These are application starting points. Final selection depends on fluid compatibility and performance under the intended conditions.

For other pressure requirements, explore our pneumatic liquid booster pumps.

HSL-35 Product Specifications

Parameter	HSL-35 Specification
Model	HSL-35
Listed ratio designation	1:39
Maximum air supply pressure	150 psi
Maximum rated output pressure	5,600 psi / 386 bar
Displacement per cycle	1.50 cu. in. / 24.6 cm³
Air-drive connection	1/2" FNPT
Liquid inlet connection	1/2" FNPT
Liquid outlet connection	1/2" FNPT

The values above apply only to the HSL-35. The maximum air supply pressure and maximum liquid output pressure are separate operating limits.

What the Displacement Means for Your Process

The HSL-35 has a listed displacement of 24.6 cm³, equivalent to 24.6 mL, per cycle. This value helps engineers assess the volume moved as the pump cycles.

However, displacement is not the same as flow per minute. Actual delivery depends on cycle speed, air supply, liquid inlet conditions, and outlet pressure. Consequently, a purchasing specification should include the required flow at the working pressure.

For a test station, include the circuit’s fill volume and target cycle time. For a production machine, state whether liquid demand is steady or changes during operation. These details make the performance review more useful than a pressure rating alone.

One Nominal Port Size Across the Pump

The air-drive port and both liquid ports share a 1/2-inch FNPT designation. This allows the engineering team to plan around one nominal connection size while selecting each line for its own service.

On the liquid side, check fittings, hoses, valves, and gauges against the system pressure and working fluid. On the air side, confirm that the supply can support the intended duty without exceeding the 150 psi limit.

In addition, review the installation drawing before finalizing the equipment layout. Allow room for pipe connections, inspection, and service access.

Browse our air-driven liquid pumps when comparing connection arrangements for a new assembly.

Define the Supply Scope Before Ordering

A clear purchase specification helps align the selected pump with the equipment build. Along with model HSL-35, confirm the following items during the quotation review:

Wetted materials and seal compatibility.
Permitted fluid temperature range.
Performance at the required working pressure.
Overall dimensions and mounting details.
Pump-only supply or any required accessories.
Required drawings, manuals, and documentation.

For repeat orders, use the agreed model and specification as the purchasing reference. For a replacement project, also compare the existing installation’s dimensions and connections.

Discuss Your HSL-35 Pump Requirement

Send us your working liquid, target pressure, required flow, available air supply, and expected operating hours. Also include the order quantity and delivery schedule so the inquiry covers both technical and purchasing needs.

If the pump will form part of an OEM machine or test unit, share a circuit drawing where available. This gives the review a clear view of the inlet supply, pressure circuit, and connected components.

Request an HSL-35 booster pump quotation to discuss the specification and supply requirements for your project.