Envco – Environmental Equipment

Constructed with solid PTFE heads, PTFE diaphragms, Kalrez® valves and utilizing fluorinated plastics on all wetted surfaces, these dry vacuum pumps are designed to meet your ever-challenging chemical duty laboratory needs.

• Advanced Vapor Management (AVM)
• Vacuum to 2-torr (2.6 mbar, 266 Pa)
• Strips DMF fast*
• Chemically resistant
• Oil-free operation

The six new models feature flows to 70 l/min and ultimate vacuum levels down to 2-Torr. No cold traps are needed to operate. These stand-alone vacuum pumps need very little maintenance leading to low cost of ownership and improved productivity.

Specifications
Welch Model 2014
Free Air Displacement
CFM (L/min) @ 60 Hz 0.9(25)
m3/hr (L/min) @ 50 Hz 1.25(21)
Max. Vacuum, in. Hg 28.3
Ultimate Pressure, Torr (mbar) 40(16)
Tubing Needed, I.D. in. 1-Apr
Weight, lbs. (kg) 15.0((6.8)
Dimensions L x W x H in. (cm) 12 x 7 x 8.3 (30.5 x 17.8 x 21.1)

Ship Weight, lbs (kg) 17 (7.7)

Welch Model 2034
Free Air Displacement
CFM (L/min) @ 60 Hz 0.9(25)
m3/hr (L/min) @ 50 Hz 1.25(21)
Max. Vacuum, in. Hg 29.6
Ultimate Pressure, Torr (mbar) 9 (12)
Tubing Needed, I.D. in. 1-Apr
Weight, lbs. (kg) 21.25(9.6)
Dimensions L x W x H in. (cm) 13.8 x 6.8 x 8.8
(35.2 x 17.2 x 22.3)
Ship Weight, lbs (kg) 23(10.4)

Welch Model 2044
Free Air Displacement
CFM (L/min) @ 60 Hz 1.2(35)
m3/hr (L/min) @ 50 Hz 1.75(29)
Max. Vacuum, in. Hg 29.6
Ultimate Pressure, Torr (mbar) 9 (12)
Tubing Needed, I.D. in. 1-Apr
Weight, lbs. (kg) 21.25(9.6)
Dimensions L x W x H in. (cm) 13.8 x 6.8 x 8.8
(35.2 x 17.2 x 22.3)
Ship Weight, lbs (kg) 23(10.4)

Welch Model 2037
Free Air Displacement
CFM (L/min) @ 60 Hz 1.8(50)
m3/hr (L/min) @ 50 Hz 2.5(42)
Max. Vacuum, in. Hg 28.5
Ultimate Pressure, Torr (mbar) 35(47)
Tubing Needed, I.D. in. 1-Apr
Weight, lbs. (kg) 21.25(9.6)
Dimensions L x W x H in. (cm) 13.8 x 6.8 x 8.8
(35.2 x 17.2 x 22.3)
Ship Weight, lbs (kg) 23(10.4)

Ordering Information
Wired for 115V, 60 Hz, 1 PH with N. American 115V Plug
2014B-01
2034B-01
2044B-01
2047B-01
2032B-01
2042B-01

Wire for 220V, 50 Hz, 1 PH with Cont. Euro. (Schuko) Plug2
2034C-02
2044C-02
2037C-02
2047C-02
2032C-02
2042C-02