Product overviewThe Welch chemical-resistant diaphragm pump MPC 090 E is designed for laboratory transfer and evacuation of neutral and aggressive gases, vapors and weak acid/base solutions. It features PTFE diaphragms, PEEK valves and fluorinated wetted surfaces for broad chemical compatibility. The pump has carbon-fiber-reinforced pump and connection heads to reduce electrostatic charging, a compact two-stage design and quiet, oil-less operation for low maintenance.
Main features- Configured for filtering and handling weak acid/base solutions
- Delivered with inlet regulator and catchpot for liquid protection
- PEEK valves and fluorinated wetted components for chemical resistance
- Carbon-fiber-reinforced heads for electrical conductivity (reduces electrostatic risk)
- Oil-less design for reduced maintenance and contamination risk
- Available wiring: 90–260 V AC / 50–60 Hz or 18 V DC
- Pumping speed (50/60 Hz): 0.9 / 1.5 m3/h
- Sound level: <45 dB
Applications / Intended use- Conveying and compressing neutral and aggressive gases and vapors
- Filtration and processing of weak acidic or basic solutions in laboratory environments
- Generation of vacuum and evacuation tasks (capable of reaching <5 mbar under appropriate conditions)
Scope of delivery2-head chemical diaphragm pump, integrated motor protection switch, hose nozzle DN 8 (for hose inner diameter 8 mm) and DN 6 references, vibration-isolating feet, external power supply and IEC device connection cable with plug (CEE, UK, US). Optional: auto adapter for field use.
NotesDiaphragms are made of PTFE and wetted surfaces are fluorinated to ensure compatibility with aggressive solvents and acid vapors. Carbon-fiber reinforcement of pump and connection heads provides electrical conductivity to minimize electrostatic charging. Compact two-stage construction enables quiet and serviceable operation.
Technical specifications- Article number: 412021
- Model / Commercial designation: MPC 090 E
- Number of heads / stages: 1 / 1
- Pumping speed (50/60 Hz): 0.9 m3/h (50 Hz) / 1.5 m3/h (60 Hz)
- Alternate stated max. pumping speed at 50 Hz: 1 m3/h (1.7 l/min)
- Ultimate pressure: listed values include <100 mbar and a vacuum capability referenced at <5 mbar
- Wired for: 90 to 260 V AC / 18 V DC
- Intake connection: hose nozzle DN 6 (scope of delivery also references DN 8 for 8 mm inner diameter hose)
- Exhaust connection: hose nozzle DN 6
- Sound level: <45 dB
- Dimensions (W/D/H): 144 / 198 / 244 mm
- Weight: 2.7 kg
- Materials & wetted parts: PTFE diaphragms, PEEK valves, fluorinated wetted surfaces, carbon-fiber-reinforced heads