Pump Operation

Notes:

  1. The maximum lift for stainless steel pumps is 500 ft. (150 m).
  2. DO NOT exceed an operating pressure of 250 psi.
  3. Tube fittings are based on use of 3/8" drive line and 1/4" sample line. A 3/8" to 1/4" adaptor is also supplied, if dual 1/4" tubing is preferred, or when using a portable reel.

 

Pump Assembly

Portable:

The Double Valve Pump is assembled by connecting it to skip-bonded, dual 1/4" OD tubing, mounted on a reel.

  1. To accommodate the 1/4" drive tubing, insert the 1/4" compression adaptor into the 3/8" drive line fitting on the Pump. The 3/8" fitting nut may have to be loosened first, then tightened after the 1/4" adaptor is inserted.
  2. Push the tubing inserts into the end of the tubing and into the drive and sample compression fittings of the DVP (the nut of the compression fittings may have to be loosened before inserting the tubing). Tighten the nut 1-1/4 turns past finger tight for proper seal.
  3. Lower the assembled DVP into the well, using a stainless steel safety line connected to the eye bolt on the pump. The Solinst Model 103 Tag Line can be used for this purpose.
  4. 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).
  5. Attach a short (3 ft. or 1 m) length of 1/4" OD sample line to the sample connector on the reel.

Dedicated:

The Double Valve Pump is assembled by connecting to a Dedicated Wellhead with 3/8" or 1/4" OD sample and drive line tubing.

  1. Cut the tubing to desired the lengths. See steps a) and b) above for tubing connection instructions to the Pump. The 1/4" compression adaptor for the drive line fitting on the Pump can be used if 1/4" drive line tubing is desired.
  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, using a stainless steel safety line if desired. If useful, attach the safety line to the suspension hook on the underside of the Wellhead. Push the Wellhead firmly onto the riser casing.
  4. Attach a short (3 ft. or 1 m) length of 1/4" OD or 3/8" OD sample line to the sample connector 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.

 

Dedicated Wellhead Setup (110227)

 

solinst double valve pump dedicated wellhead setup

 

illustration shows solinst quarter inch push fit adaptors used on groundwater sampling dedicated wellhead

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 "M Style" Quick Connect

solinst optional drive line adaptor for pneumatic bladder pumps

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

 

When the Bladder 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.