5/8” Double Valve Pump Operation

Pump Operation

Portable:

The Double Valve Pump will be attached to skip-bonded, dual 1/4" OD LDPE tubing, mounted on a reel.

  1. Push the drive and sample tubing over the tubing barbs on the stems. The drive tubing connects to the stem identified by a small dimple/indent beside it.

    2. Note:

    Use an awl to open the very tip of the tubing, or heat the tubing to help push it completely over all the barbs.

  2. Lower the assembled DVP into the well.
  3. Connect the supply line with the in-line dryer from the compressed gas source to the Control Unit. The drive line connects from the Control Unit to the reel (drive and supply lines come with the Model 464 Control Unit).
  4. Attach a short (3 ft. or 1 m) length of 1/4" OD sample line to the sample connector on the reel.

Dedicated:

The Pump will come with a roll of tubing to be cut to length, as required, for connection to a Wellhead.

  1. Cut the tubing to desired length. Push the drive and sample tubing over the tubing barbs on the stems. The drive tubing connects to the stem identified by a small dimple/indent beside it. (See note below step a above).
  2. Attach the sample and drive lines to the appropriate push fittings on the underside of the Wellhead (see diagram at right for use of push fittings and adaptors).
  3. Lower the DVP into the well. Push the Wellhead firmly onto the riser casing.
  4. Attach a short (3 ft. or 1 m) length of 1/4" OD sample line to the sample line fitting on the Wellhead (see diagram at right for use of push fittings and adaptors).
  5. Connect the supply line with the in-line dryer from the compressed gas supply to the Control Unit. The drive line connects from the Control Unit to the top of the Wellhead (drive and supply lines come with the Model 464 Control Unit).

For detailed pumping instructions, please see the Solinst Model 464 Control Unit Operating Instructions.

Notes:

  1. The maximum lift for stainless steel (SS) pumps is 500 ft. (150 m)
  2. DO NOT exceed an operating pressure of 250 psi
  3. The pump has been decontaminated before leaving Solinst however, you may wish to decontaminate your pump before use. The pump should be decontaminated between wells.

 

solinst double valve pump groundwater sampling setup with compressor and pneumatic control unit

 

Dedicated Wellhead Setup (110227)

solinst bladder pumps bladder groundwater samplers VOC sampling dedicated pumps dedicated sampling pumps bladder pump operating instructions 103181 image

 

solinst double valve pump wellhead tubing push fit adaptors

Wellheads come with three 1/4" push fit adaptors so that either 1/4" or 3/8" tubing can be used, as preferred.

To attach tubing just push into push fitting. To release tubing push down on both sides of the top ring and pull tubing out.

 

 

Optional Drive Line Adaptor (107117)

Drive Line Quick Connect

solinst optional drive line adaptor double valve groundwater sampling pump

Drive Line 1/4" (6.4 mm) Push Fitting

 

When the Double Valve Pump is deployed without a Wellhead or Tubing Reel, use a Drive Line Adaptor to allow the connection of the drive line quick connect fitting from the Control Unit to the drive line pump tubing.