Envco – Environmental Equipment

• Effective for use in automated systems
• Oil-free for low maintenance
• Liquid separator trap protects the pump
• Compact, lightweight, portable

Standard Duty Dry Piston Pump for Automated Systems is effective for aspiration of aqueous or buffer samples(Not recommended for aspirating acidic,basic, or organic vapors or gases).

Designed for high throughput automated systems, Model 2567B-50 provides 100 L/min flow at 60 Hz (83 L/min at 50 Hz). This flow will provide aspiration power for 96 and 256 well systems.

Welch Model 2567
Free Air Displacement
CFM (L/min) @ 60 Hz 3.1(88) 3
m3/hr (L/min) @ 50 Hz 4.4(73
Max. Vacuum, in. Hg 27.6
Ultimate Pressure,
Torr (mbar) 60(80
Stages 1
Tubing Needed,I.D., in.(mm) 3/8(10)
Weight,lbs (kg) 16.5(7.5)
Dimensions (LxWxH), in. 11.1x9.2x11
Ship Weight,lbs (kg) 21.5(9.7)

Because the pumps are oil-free there is no oil contamination of samples, no exhaust smoke, no oil leaks, and best of all, no oil changes. Pumps are complete with vacuum adjustment, dial vacuum gauge, and liquid separator trap.

Ordering Information
2567B-50 Standard duty vacuum pump w/filter, 115V, 60Hz, 1 Ph w/N. American plug.
2567C-50 Standard duty vacuum pump w/filter, 220V, 50Hz, 1 Ph w/Cont. European plug.

2567B-01 PUMP WOB-L 115V 60Hz
2567C-02 PUMP WOB-L 230V 50/60Hz
2567K-03 TWO HEAD SVCE KIT 2562/2567
2567K-04 SEAL SERVICE KIT 2562/2567