1" Bladder Pump Operating Instructions
High Quality Groundwater and Surface Water Monitoring Instrumentation
(Page 1 of 2)
Model 407 SS 1" Dia.
®Solinst is a registered trademark of Solinst Canada Ltd.
Operating Principles
When the Solinst Bladder Pump is placed in a well or borehole,
water rises inside the bladder and sample tubing to static level.
Compressed nitrogen or air is supplied to the pump via the
drive tubing using a control unit. Applying pressure causes the
bladder to compress and closes the bottom check valve, forcing
water from the bladder into the sample tubing.
During a vent cycle the pressure is released from the drive
tubing. The bladder returns to its initial state as water re-enters
the pump, while the top check valve prevents water already in
the sample tubing from falling back into the bladder. Cycling
the drive and vent provides water flow, the rate of which can be
adjusted for purging or sampling.
Notes
: 1. The maximum depth for 1" Bladder Pump operation is
500 ft. (150 m) below grade.
2.
DO NOT
exceed an operating pressure of 250 psi.
3. Air dryers are recommended, if using a compressor to
operate the Bladder Pump.
Pump Assembly
Portable:
The Bladder Pump can be connected to skip-bonded,
dual 1/4" OD tubing, mounted on a reel.
a) 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.
b) Lower the assembled Bladder Pump into the well, using a
stainless steel safety line connected to the eye safety stem
on the pump. The Solinst Model 103 Tag Line can be used
as a safety line if required.
c) Connect the supply line 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).
d) Attach a short (3 ft. or 1 m) length of 1/4" OD sample line
to the sample connector on the reel.
Dedicated:
The Bladder Pump is assembled by connecting to a
Dedicated Wellhead with 1/4" OD sample and drive line tubing.
a) 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.
b) Attach the sample line and drive line to the appropriate
push fitting on the underside of the Wellhead (see diagram
at right for use of push fittings and adaptors).
c) Lower the Bladder Pump into the well using Kevlar cord
or a stainless steel safety line connected to the suspension
hook on the Wellhead, if desired. Push the Wellhead down
firmly onto the riser casing.
d) Attach a short (3 ft. or 1 m) length of sample line to the
sample fitting on the Wellhead (see diagram at right for use
of push fittings and adaptors).
e) Connect the supply line 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.
Portable Sampling Setup
Tubing Reel
Sample
Line
Bladder Pump
in Screened Well
Electronic
Control Unit
Air Compressor
or Cylinder
Supply
Line
Drive
Line
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.
Dedicated Wellhead Setup
(110227)
Drive Line
3/8" (9.5 mm)
Push Fitting
Drive Line
Quick Connect
1/4" (6 mm) Push Fit Adaptor
(109975)
Suspension
Hook
7/8" (22 mm)
Access Hole
Sample Line
3/8" (9.5 mm)
Push Fitting
Sample Line
3/8" (9.5 mm)
Push Fitting
1/4" (6 mm)
Push Fit Adaptors
(109975)
Optional Drive Line Adaptor
(107117)
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.
Drive Line
1/4" (6.4 mm)
Push Fitting
Drive Line
“M Style”
Quick Connect
