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Uniphos Piston Tube Pump ASP-40

Save over 20% with Uniphos detector tubes over Draeger tubes. Purchase 10 boxes of Uniphos tubes and receive a free tube pump with trade-in.

Purchase below or for quantity discount, please call 1-800-952-3293 or email


The Uniphos Piston Tube Pump is a precision piston style air sampling pump to simplify the measurements with the Uniphos detector tubes. Each pump features a precise 100ml per stroke and includes an option 50ml stroke. The pump has a positive end of flow indicator on the handle and a built in tube tip opener. This pump is light weight and easy to operate.

The flow indicator on the end of the pump handle is grayish-black while the pump is under vacuum and pulling a sample through a tube. Upon completion of the stroke cycle, the indicator pops, becoming white, signifying the end of the stroke cycle. Typical stroke cycles are 1 to 2 minutes. Each pump includes a wrist strap to tether the pump and reduce the potential of drops in those hard to reach areas or when sampling on a ladder or cat walk.


  • Highly reproducible sample volume is drawn through the detector tube each time
  • The pump shaft is calibrated with marks at 50 and 100ml
  • End of flow indicator
  • Built in tube tip cutter
  • Ergonomic design and easy to use
  • The pump kit includes grease and replacement inlets for the occasional maintenance


Stroke Volume 100 ml standard or 50 ml for half stroke
Duration per stroke Varies by tube, from 1 to 3 minutes
Temperature -4°F o 122°F
Humidity 0 to 95% RH
Pressure See tube instructions for relevant compensation factors
Diemensions 8.5″ x 2.0″
Weight 10.9 ounces

Ordering Information

Catalog No.DescriptionPriceQuantity
Uniphos Piston Tube Pump ASP-40


Pump Kit ASP-40 Kit includes pump, carry case and rebuild kit $301.00
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Uniphos Piston Tube Pump Literature

Additional information

Weight 3 lbs

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