Solinst 408 Double Valve Pump

  • Ideal for Low Flow Sampling Proven in the field in thousands of applications
  • Easy to Decontaminate Parts are easily accessible, replaceable and with interchangeable parts
  • Low Cost Low cost PVC pumps are ideal for projects with low budgets. Several PVC pumps can be purchased for less than a portable stainless steel pump.
Product Options


The Solinst Double Valve Pump (DVP) is a pneumatic-drive pump that is ideal for providing high-quality samples or as a pump for a low-flow sampling equipment setup. Field tested in thousands of different applications, the DVP is extremely reliable, never requiring bladder replacement. It generates pumping rates higher than the SolinstIntegra Bladder, is available in a variety of sizes and materials.

Suitable for both low flow sampling the Double Valve Pump makes sampling easy. The stainless-steel pumps are capable of operating at depths up to 500 ft (150 m), and the PVC models can operate at depths up to 100 ft (30 m).

Manufactured by: Solinst
Model: Solinst 408 Double Valve Pump

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Low-flow sampling
Non-vertical applications
Leachate/product pumping
Groundwater/Landfill Sampling


Size and Material Options

Solinst offers double valve pumps in either 316 stainless steel with Viton® o-rings, or in PVC with a polyethylene filter. The two standard pump body sizes are:
- 5/8” dia. x 1 ft long (16 mm x 300 mm)
- 1.66” dia. x 2 ft long (42 mm x 610 mm)

Standard dedicated systems use 1/4” (6mm) sample and 3/8” (10 mm) drive LDPE tubing. Portable systems use dual 1/4 (6mm) skip-bonded LDPE lined with PTFE/FEP. Adaptors for both 1/4” and 3/8” (6 mm and 10 mm) tubing are included.

The Micro Double Valve Pump is flexible, 3/8” (10 mm) diameter, PTFE/FEP Pump. It is ideal for low flow sampling in narrow applications.
(See Solinst Model 408M Data Sheet)

12 Volt Air Compressor Portable, designed to operate using a
vehicle battery. Ideal for field use, especially low flow applications of less than 100 ft (30 m) depth.
Packers Save time and reduce costs by minimising
the volume of water purged.
In-Line Disposable Filters 0.45 µm, with 700 cm2 filter area.
Tag Line Convenient reel-mounted marked cable, for depth discrete pump support.


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