Browse Categories

Rechargeable In-Line Trap to Prevent Backstreaming in Vacuum Pump-EQ-SAT25A-LD

Please email for lead time
Item Number: SAT25
The Assimilation Traps are used between the rough vacuum pump and the diffusion (or turbo) pump to prevent backstreaming of oil into the diffusion pump.  In addition,  these traps prevent particulate matter from entering the vacuum pump. 
AssimilationTraps have the added feature of a replaceable filtering element. This allows easy replacement once it becomes contaminated, clogged, or corroded. A variety of different filtering mediums are available for specific applications described below. The quick clamp seal incorporates a Viton gasket to provide a good vacuum seal.  In addition to the elements listed, the user could incorporate his own medium into the assimilation trap for special applications.  For example, if a lot of acidic compounds were to be pumped by the vacuum pump, NaOH or other basic compounds could be used in the trap to neutralize acids, and aluminum oxide filtering material could be used for high-efficiency filtering.
Body Dimensions(W x L)
Bottom Top Capacity
3" x 6 3/4" NW25 Flange NW25 Flange 17cfm
Assimilation TrapElements
The standard element is coarse  OFHC  (oxygen free hard copper).  Optional filtering elements are available as described below at extra cost.

Coarse grade OFHC copper elements are standard.  They provide a large surface area for condensing oil vapors. The pure copper surface attracts hydrocarbons due to its high affinity for that type of compound. 

Coarse grade stainless steel is for applications where a copper element is not desirable due to the reactivity of copper with certain chemicals.
Please click the picture above to see detail construction
Attention: Trapping elements should be replaced every 6 months


Related Products

Shopping Cart
Your cart is empty.
Please clear the browsing history before ordering the product. Otherwise, availability and price are not guaranteed.
Mailing Lists
MTI sponsorships:
MTI Sponsors Thermoelectrics Workshop

MTI-UCSD Battery Fabrication Lab

MTI Sponsors the Postdoctoral Awards

Upcoming Shows:

242nd ECS Meeting October 9 - 13 Atlanta GA Booth 200

2022 MRS Fall Meeting Nov 27 - Dec 2 Boston MA

Recent Attended Shows:
John Goodenough 100th Birthday Symposium

2022 MRS Spring Meeting May 8 - 13 Honolulu Hawaii Booth 209

Click here to see our past conferences


1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.