HB-40B Corrosion-Resistant Diaphragm Pump, 40 L/min (CAT#: STEM-AL-0335-ZJF)

The HB-40B is a corrosion-resistant vacuum diaphragm pump for laboratory and process vacuum applications. It is a two-stage pump designed for corrosive gas media. PTFE gas-contact parts support resistance to many chemical vapors. The pump is suitable for vacuum distillation, rotary evaporation, vacuum concentration, filtration, and solid extraction. The dry diaphragm design eliminates water and oil use during vacuum generation. A vacuum gauge with regulator supports pressure adjustment during operation. The direct-drive structure helps reduce noise and vibration. Overheating protection automatically stops the pump at high internal temperature and restarts after cooling.

Model: HB-40B
Rated Voltage/Frequency: 220 V/50 Hz
Rated Power: 120 W
Pump Head Type: Two-stage pump
Ultimate Vacuum: 6-8 mbar
Operating Pressure: 1 bar
Maximum Flow: 40 L/min
Interface Specification: 10 mm
Medium And Ambient Temperature: 5-40 C
Relative Humidity: <80%
Pump Head Material: PTFE
Composite Diaphragm Material: HNBR + PTFE
Valve Material: FKM and FFPM
Vacuum Gauge: With vacuum regulator
Work System: Continuous operation
Noise: <55 dB
Rated Speed: 1450 rpm
Dimensions: 320 x 170 x 270 mm
Weight: 11 kg

40 L/min maximum flow
PTFE gas-contact pathway
Two-stage diaphragm pump structure
Dry oil-free operation
Vacuum regulator with gauge
Continuous operation capability
Low-noise direct drive
Overheating protection