Double Valve Pumps

solinst double valve pumps



  • 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.


Bladder Pumps

solinst 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

solinst electronic 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.