Thomas 688CHIQQ22-232 Oil-Less WOB-L Piston Vacuum Pump

Description:

The Thomas 688CHIQQ22-232 Pump Motor is an oil-less WOB-L® piston compressor/vacuum pump designed to provide clean, reliable pressure and vacuum for OEM and industrial equipment operating on a 220–240 VAC power supply. Commonly installed in laboratory instruments, medical equipment, packaging machinery, printing systems, environmental monitoring equipment, and industrial automation requiring contamination-free compressed air or vacuum. Maintenance technicians, OEM manufacturers, and system integrators use this pump for equipment repair, replacement, retrofits, and new system integration.

Applications:

The Thomas 688CHIQQ22-232 utilizes proven WOB-L® oil-less piston technology, eliminating the need for lubrication while delivering dependable pressure and vacuum performance. Powered by a permanent split capacitor (PSC) motor, it operates on 220–240 VAC, 50 Hz or 230 VAC, 60 Hz, making it suitable for continuous-duty applications requiring clean, dry air. Its durable aluminum construction and long-life piston seal make it ideal for medical analyzers, oxygen concentrators, laboratory air dryers, packaging equipment, vacuum clamping systems, and industrial OEM machinery.

Technical Specifications:

• Brand: Thomas
• Part Number: 688CHIQQ22-232
• Product Type: Oil-Less Piston Compressor / Vacuum Pump
• Pump Technology: WOB-L® Oil-Less Piston
• Rated Voltage: 220–240 VAC (50 Hz) / 230 VAC (60 Hz)
• Rated Current: 0.70 A
• Frequency: 50/60 Hz
• Phase: Single Phase
• Motor Type: Permanent Split Capacitor (PSC)
• Motor Power: Approximately 140 W (0.19 HP)
• Maximum Flow Rate: 1.4 CFM (39.7 L/min)
• Maximum Pressure: 100 PSI (6.9 bar)
• Maximum Vacuum: 26.3 inHg (-890.5 mbar)
• Speed: 1,410 RPM (50 Hz)
• Lubrication: Oil-Free / Maintenance-Free
• Insulation Class: Class B
• Operating Mode: Pressure or Vacuum
• Features: Oil-free operation, continuous-duty design, low maintenance, long-life piston seal, corrosion-resistant aluminum components
• Typical Industries: Medical, Laboratory, Packaging, Printing, Environmental Monitoring, Industrial Automation, OEM Equipment.

Common Replacements:

• Thomas 688CGHI44
• Thomas 668CE22
• Thomas 668CE44