Liquid pumps

Name: Liquid pumps — M · 4B · ASF · D14
Brand: HASKEL

M · 4B · ASF · D14

Air-driven liquid pumps generate hydraulic pressure using pistons of different areas. The pump fills and builds pressure, slows as forces approach equilibrium and can restart after a pressure drop. Pump ratio, drive air and the performance curve determine the operating point.

01Holding at stall without continuous drive-air consumption, under equilibrium conditions

02No additional lubricator required in the drive-air line

03Materials and seals matched to the liquid and service conditions

04Performance catalogue by power family and pump ratio

Product catalogues and documents ↓

The model will be added to your request. The B.N. team will check its suitability for your operating conditions.

HASKEL / TECHNICAL PRODUCT VIEW

APPLICATION & DESIGN

Understand the application.

Applications

Hydrostatic pressure testing
Clamping and workholding
Actuation of hydraulic components and circuits
Liquid supply to a process

Product features

Holding at stall without continuous drive-air consumption, under equilibrium conditions
No additional lubricator required in the drive-air line
Materials and seals matched to the liquid and service conditions
Performance catalogue by power family and pump ratio

TECHNICAL DATA

Data with a source.

Parameter	Value and reference conditions
Power groups in the catalogue	0.33, 0.75, 1.5, 2–2.2, 3, 6, 8 and 10 hp Source ↗
Pressure — portfolio envelope	Up to 100,000 psi in suitable models; the selected pump's pressure is determined by its specification Source ↗
Ratio and flow	A higher ratio enables higher pressure but reduces displacement per cycle Source ↗

Do not treat stall pressure as a continuous-flow rating. Materials, seals and hazardous-area approval must be checked for the ordered model and version.

DOCUMENTS & SOURCES

Professional information. Within reach.

Liquid pumps — Hebrew catalogueHebrew · PDF · 28 Pages · 17.3 MB · Opens in a new tab Liquid pumps — manufacturer catalogueEnglish · PDF · 28 Pages · 8.8 MB · Opens in a new tab Liquid pump quick selection guideEnglish · PDF · 12 Pages · 0.8 MB · Opens in a new tab 1.5 / 2 / 2.2 HP liquid pumps — performance dataEnglish · PDF · 47 Pages · 8.2 MB · Opens in a new tab HASKEL — product family overviewEnglish · PDF · 4 Pages · 1.8 MB · Opens in a new tab Liquid pump quick selection guide — PDFOpens in a new tab Liquid pumps — series and manufacturer documentsOpens in a new tab

More documents in the information centre ←

Sources checked: 2026-10-26. Check the revision and configuration when ordering.

MODELS & CONFIGURATIONS

Select a model. Explore the details.

Model / series	Features
M — 0.33 hp	Compact spring-return pump group
0.75–3 hp	Several families and pump ratios for selection by liquid, pressure and flow
6–10 hp	Larger drive groups in the catalogue; performance is assessed by model and curve

YOUR APPLICATION

Your data. Our selection.

Liquid name and composition, viscosity and temperature
Operating pressure and required flow at that pressure
Filling volume and pressure-rise time
Duty cycle and hold time
Available air pressure and flow, suction conditions and connections

You may attach a specification, drawing or nameplate photo. The site assistant can help organize the data.