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Pricing is valid only for USA and Canada.

2090C-02

Additional Information

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2090B-01

• Exploded View & Parts List (PDF)
• Dimensional Drawing (AutoCAD)
• Picture

 

PTFE Coated Dry Vacuum Pumps
For Chemical Duty

Features

• Moderate corrosion protection
• PTFE coated with PTFE layer diaphragm
• High throughput; 3.1-6.2 CFM (4.4-8.8 m³/hr)
• Vacuum 25-100 torr (33-133 mbar)

Ordering Information² & Specifications

Pricing is valid only for USA and Canada.

	Catalog Number
Wired for 220V, 50 Hz, 1 PH with Cont. Euro. (Schuko) Plug
Welch Model	20901
Free Air Displacement
CFM (L/min) @ 60 Hz	3.1(88)
m3/hr (L/min) @ 50 Hz	4.4(73)
Max. Vacuum (in. Hg)	29.0
Ultimate Pressure, Torr (mbar)	25(33)
Stages	2
Tubing Needed, I.D. in.1.	7/16(11)
Weight, lbs. (kg)	32(14.5)
Dimensions (L x W x H) in. (cm)	10.3 x 4.8 x 6.3 (26.2 x 12.2 x 16)
Ship Weight, lbs. (kg)	37(16.8)

1. Models and 2090 employ a Teflon® coated head, stainless steel valves and a Teflon liner over the diaphragm.
2. Pump supplied with installed intake and Exhaust barb and muffler.