Aluminum Foreline Traps

$ 349.00 349.00

Available Options


3 different pipe diameter sizes available!

These rechargeable in-line traps effectively block oil from backstreaming into mechanical pumps. Any mechanically pumped system, even one with a turbopump, should have a foreline trap. The trap is positioned in the foreline between the roughing pump and the diffusion or turbo pump. It uses a disposable, absorbent, oxygen-free copper maze that requires no liquid nitrogen and will not hold water. Typically the maze is replaced every year. The seamless body is available in Aluminum. Features include:

  • a quick change clamp for replacement of the maze
  • an O-ring end cap
  • a recessed screen
  • available in 3 pipe diameters

Larger sizes, special flanges, and replacement parts for all traps are available by special order. Call 301-975-9798 for assistance.

Replacement elements are also available.


 Part/Model# Pipe Dia. *Body Mat'l Pump Capacity Body Dia. Copper Maze Part# Price
AT-50 1/2" Aluminum 5CFM 2 1/2" RE250 $295.00
AT-75 3/4" Aluminum 5CFM 2 1/2" RE250 $295.00
AT-250-100 1" Aluminum 10CFM 2 1/2" RE250 $295.00