Envco – Environmental Equipment

• Powerful, Portable, & Economical
• Lab or Field Usage
• Advanced Chemical Resistance

Quiet GEMINI pumps use DC motors, powered by an AC adapter unit in the lab or a 12 VDC adapter for your vehicle. Pump fumes up to 13L/min/achieve vacuum to 190 Torr. GEMINI gives you enhanced chemical resistance - tolerant beyond aqueous fumes for use with solvents and weak acids/bases.

GEMINI’s high performance components will not corrode. Chemical resistance is built in with polyarylamide heads and Viton diaphragms, tubing and valves. The oil-free dry pump design provides top performance in a portable durable package.

For convenient vacuum readout and regulation, order Model 2060.

Specifications GEMINI Pumps

Welch Model 2050
Free Air Displacement
CFM(L/min) 0.3(8.5)
Ultimate Pressure, Torr(mbar) 190(253)
Vacuum Regulator and Gauge No
Max Vacuum, in. Hg 22.4
Inlet thread NPT ––––– 1/8
Tubing, I.D. in.(mm) 3/8(10)
Weight, lbs.(kg) 5.3(2.4)
Dimensions LxWxH, in. 7.6x4.5x7.5
cm 19.4x11.4x19.1
Shipping weight, lbs.(kg) 7(3.2)

Welch Model 2060
Free Air Displacement
CFM(L/min) 0.46(13)
Ultimate Pressure, Torr(mbar) 200(266)
Vacuum Regulator and Gauge Yes
Max Vacuum, in. Hg 22.0
Inlet thread NPT ––––– 1/8
Tubing, I.D. in.(mm) 3/8(10)
Weight, lbs.(kg) 11(5)
Dimensions LxWxH, in. 9.25x7.25x8.5
cm 23.5x18.4x21.6
Shipping weight, lbs.(kg) 13(5.9)

Ordering Information
2050 Gemini
2050B-01 Pump w/115V, 60Hz, 1 Ph power adapter w/ N. Amer. plug +12 VDC auto adapter
2060C-02 Pump w/230V, 50Hz, 1 Ph power adapter 2050C-02 2060C-02 with cont. Euro.(Schuko) Plug +12 VDC

2060 Gemini
2060B-01 Pump w/115V, 60Hz, 1 Ph power adapter w/ N. Amer. plug +12 VDC auto adapter
2050C-02 Pump w/230V, 50Hz, 1 Ph power adapter with cont. Euro.(Schuko) Plug +12 VDC auto adapter