Oil-Free Diaphragm Vacuum Pump - Lab Vacuum and Pressure Pump - 30-60 L/min - 24 h Duty

The Master Science Oil-Free Diaphragm Pump is a general-purpose laboratory vacuum pump for vacuum filtration, rotary evaporation, drying ovens and similar work. It runs without oil, stays quiet below 50 dB and is rated for continuous 24-hour operation.

The vacuum level is held steady and can be adjusted with a valve. Besides two vacuum-only versions, the series includes a dual-function model that supplies both vacuum and pressure, so one pump can cover two jobs.

Technical Specifications

Specifications of the Master Science Oil-Free Diaphragm Pump range (LH51 / LH52 / LH102):

• Brand: Master Science
• Model Number: MSVACP-LH51SWISS, MSVACP-LH52SWISS, MSVACP-LH102SWISS
• SKU: MSVACP-LH51SWISS, MSVACP-LH52SWISS, MSVACP-LH102SWISS
• Brand: Master Science
• Model Numbers: MSVACP-LH51SWISS, MSVACP-LH52SWISS, MSVACP-LH102SWISS
• SKU: MSVACP-LH51SWISS, MSVACP-LH52SWISS, MSVACP-LH102SWISS
• Function: Vacuum / vacuum / vacuum and pressure
• Pumping Speed: 30 / 30 / 60 L/min
• Ultimate Vacuum: 150 mbar (>0.085 MPa) / 50 mbar (>0.095 MPa) / 150 mbar (>0.085 MPa)
• Pressure Output: LH102: 40 psi
• Pump Heads: 1 / 2 / 2
• Motor Power: 180 W
• Diaphragm: HNBR
• Noise: < 50 dB
• Duty: Continuous, 24 h
• Dimensions (L × W × H): 250 × 135 × 210 / 315 × 135 × 210 / 315 × 135 × 210 mm
• Weight: 7.5 / 10 / 10 kg

Key Benefits

• Replaces water jet pumps: the Master Science Oil-Free Diaphragm Pump saves water and avoids contamination.
• Steady vacuum: valve adjustment holds the set level.
• Two functions in one: LH102 gives vacuum and pressure.
• Runs all day: rated for 24-hour operation.
• Plug and play: portable and ready to use.

For corrosive vapours, choose the Master Science chemical resistant PTFE diaphragm pump.

Product Features

Pump

• HNBR diaphragm
• 1 or 2 heads
• 30 or 60 L/min

Operation

• Oil-free, below 50 dB
• Valve-adjustable vacuum
• 24-hour continuous duty

Design

• Compact and portable
• Gauge on the pump head
• Easy maintenance

Applications

The Master Science Oil-Free Diaphragm Pump is used for:

• Vacuum filtration
• Vacuum drying ovens
• Molecular distillation
• Vacuum concentration
• Gel drying

Common Laboratory Problems and How This Pump Helps

How the Master Science Oil-Free Diaphragm Pump handles common vacuum needs:

• Water wasted by water jet pumps: dry diaphragm pump.
• Fluctuating vacuum: valve-stabilised level.
• Separate pumps for vacuum and pressure: dual-function LH102.
• Oil mist in the lab: oil-free design.