Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Welch™ Programmable Vacuum Controller

Designed to automatically regulate the applications vacuum level precisely, conviniently and without using precious bench space

Supplier:  Welch™ 1640A01

Catalog No. 12-584-507

Add to Cart



Vacuum level can be regulated from 2 Torr to atmospheric pressure, ±1 Torr. Achieve fine control of rotary evaporation, vacuum ovens/chambers, and other common laboratory vacuum processes.

  • Intuitive, corrosion resistant design incorporates a numeric keypad, PTFE solenoid valve, and solid state ceramic sensor for precise/reproducible vacuum control
  • Dual set points, timer, memory, and repeat functions
  • Stores up to 5 programmed methods, establishing up to 2 vacuum level set points and durations for each method
  • Convenient keypad enables rapid manual vacuum level adjustment
  • Rack mountable and easy to set up
  • Works with direct or belt-drive vacuum pumps up to 100 L/min, diaphragm pumps, WOB-L™ piston pumps, water aspirators, and house vacuum systems

Rotary evaporations, centrifugal evaporations, vacuum ovens



100 L/min.
5.6 in.
7.3 in.
5.2 in.
14.22 cm
18.7 cm
115 V
Product Suggestions

Product Suggestions



Product Certifications


Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit