Vacuum Degasser

S 8515 Vacuum Degasser

S 8515 Vacuum Degasser

The S 8515 Vacuum Degasser is an online degasser system with high efficiency. Dissolved gases are removed from the solvents by applying vacuum to a semi-permeable membrane.


  • High Efficiency
  • 2 Operation Modes
  • 5-Year Membrane Warranty
  • Multi-Channel

High Efficiency

The highly efficient Teflon-AF® capillary has a much higher efficiency than a normal Teflon capillary of similar size. This allows the usage of a smaller length of the capillary to reduce the dead volume of the system considerably.

2 Operation Modes

The S 8515 Vacuum Degasser can be run either with constant speed or in Hysteresis Mode, which switches the vacuum pump on or off.

5-Year Membrane Warranty

The S 8515 Vacuum Degasser a membrane for creating the vacuum. This membrane is made of a specific Teflon material specifically designed for fast movements. We offer a 5-year warranty on the lifetime of this membrane.


The S 8515 Vacuum Degasser is available in 1-Channel, 2-Channel, 3-Channel, or 4-Channel versions. Each solvent channel can be used for a different solvent. Several channels can be used in series to increase efficiency even more.

Working Principle

The solvent flows through a short length of Teflon AF® capillary inside a sealed chamber. This chamber (vacuum chamber) is completely sealed to the environment and the vacuum is applied with a pump. Due to this vacuum, any dissolved gases in the solvent running through the inner capillary are removed through its semi-permeable membrane wall. The high efficiency of the Teflon AF® material allows the usage of a very short length of capillary inside the vacuum chamber.

Technical Specifications:

Wetted MaterialsTeflon AF®, Teflon, Stainless Steel, Aluminium, EPDM
Degassing Capacity< 20% dissolved gases remaining in water at 1.0 ml/min
Volume / Channel< 500μl
(W x H x D)
125 x 167 x 270 mm
Weight3.2 kg
Power Supply100 – 250 ~V (47 – 63 Hz)
Working Principle