• Low flow or high flow
  • Operate to 500 ft (150 m)
  • Easy to decontaminate
  • 1.66 and 5/8 (42 mm and 16 mm) diameters
  • High quality stainless steel design
  • Dedicated and portable systems

The Model 408 Double Valve Pumps are positive displacement, gas drive pumps providing high quality, consistent samples, and excellent VOC (Volatile Organic Compound) sample results. Pumps are available in stainless steel 5/8″ diameter, and 1.66″ diameter. Portable or dedicated versions are available. They can be fitted with packers to control groundwater flow and limit purge requirements. DVPs are easily disassembled for decontamination in minutes, without any tools.

Related Products

Bladder Pumps

Bladders ensure no air/water contact during operation, providing representative groundwater samples and excellent VOC sample results. Bladder Pumps are also EPA approved for low flow groundwater sampling.

Pump Control Unit

The Model 464 Pump Control Unit manually or automatically regulates the supply of compressed air to Pneumatic Pumps. Pre-set sample modes allow easy operation and up to 99 user-created flow rates can be saved to its memory.

Make Your Life Easier In The Field

Consider making your life easier in the field by ordering one of our convenient Field Tables. We have two models available, Well-mount and Stand-alone, to keep your equipment organized and provide a clean, sturdy surface to hold your field tools.

Well-mount Field Table – 115209
Stand-alone Field Table – 115312