Solinst’s Model 408 Double Valve Pump (DVP) is a pneumatic drive pump designed to provide consistent, reliable, and accurate samples. The 408 DVP is field serviceable, requires no bladder replacement, comes in varied sizes and materials with varied flow rates, and offers higher pumping rates than would be obtained with the Bladder Pump. Suitable for regular or low flow sampling, the 408 Double Valve Pump can also be equipped to operate at depths up to 2000 feet (600 meters) with proper equipment.

Another pnuematic pump manufactured by Solinst, the Integra bladder pump, is also available.

The Model 408 Double Valve Pump was designed to be easily accessible, allowing for easy replacement and swapping of parts. It can be easily decontaminated without need for specialized field tools. Due to similarity in parts and simple installation the 408 DVP can be converted easily to a bladder pump. Portable models can easily be prepared and deployed, and the 408 DVP is cart or reel mountable. The 408 DVP also delivers high flow rates, relative to a range of conditions (example: 3.3 l/min from a 1.66″ x 2′ DVP, 150 feet below water grade, at 100 psi with 1/2″ OD drive and sample lines).

Solinst 408 Double Valve Pump Features

• Easily decontaminated due to accessible construction
• Portable models can be prepared for a range of applications
• Easily converted to serve as a bladder pump
• Field serviceable; requires no bladder replacement
• Operates at depths up to 2000 feet
• Sustains high flow rates

Solinst Double Valve Pump Ordering Instructions

A complete double valve pump system consists of the pump, tubing, control unit, air compressor, and either a well head for dedicated installations or a reel for portable systems. Solinst offers two types of electronic control units and a portable 12 VDC low flow compressor.

For dedicated installations order the desired pump, the required lengths of tubing for both the sample and drive lines, and a dedicated well head.

For a portable set up order the desired pump, and the required length of skip bonded dual tubing, and either a free standing reel or a cart (which includes a reel and an electronic control unit).

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