QED Sample Pro 3 Inch User manual

Sample Pro 3/4"
Portable
MicroPurge Pump
Part No. 95192 3-9-04
Sample
Portable PumpsMicroPurgeR
Manual
Instruction
P.O. Box 3726 Ann Arbor, MI 48106-3726 USA
1-800-624-2026 Fax [phone]
[e-mail] www.qedenv.com

Topic Page
Introduction
D escription
A ssembly
Attaching Tubing / Disassembly / Cleaning / Decontamination Note
Figure 2 / Main Components
Figure 5 / Using Needlenose Pliers for Check Ball Stop Assembly/Disassembly
Figure 6 / PumpTubing FittingAssembly
Figure 7 / Pump Head Assembly
Figure 4/ TubingAttachment Tool
1
2
8
5
Figure 3 / O-Ring Replacement 4
3
Figure 1/Pump Overview 1
4
Bladder Replacement
Specifications
QED Service Contacts
Important WarrantyNote
QED W arranty
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Contents
Contents

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1-800-62 4-2026PATE NT P ENDING
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www.micropurge.com
Introduction
The Sample Pro 3/4” Portable MicroPurge Pump, (Figure 1) is the first pump de-
signed specifically to meet the practical needs of sampling small diameter wells: easy
to adjust to low-flow purging rates and easy to decontaminate between sampling
points. Decon is made easier by the pump having fewer parts, disassembly without
tools, and quick-change, disposable bladders. The Portable MicroPurge Pump is com-
pact and can pump from a 5-gallon bucket. The pump is operated by compressed gas
and a bladder pump control unit, and is ideally used with the MicroPurge basics
models MP10 and MP15 controllers. The compressed gas is on the outside of the
bladder and the pumped liquid is on the inside of the bladder, so there is no contact
between the sample and the gas.
1
Inlet
Cover
Body
Figure 1
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1-800-624-2026PATENTP E NDIN G
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www.micropurge.com
Cover
Head
Body
Bladder
Introduction

2
The cap of the pump twists off for full disassembly of the inlet and outlet check
valves and the tubing connection components.
The pump uses 1/8” O.D. tubing for compressed gas supply and 1/4” O.D. tubing for
the sample discharge. Tubing connections to the pump are made via push-in fittings
built into the top of the pump.
The push-in connections provide excellent pull out strength when used with QED
tubing, so that use of a support cable is not required. Ho wever a connection eye is
provided on the top of the pump and tubing for use of a cable when preferred. The
connection eye is threaded into the top plate of the pump and can easily be removed
or reinstalled as desired. The push-in fittings on the SamplePro pump are designed
to provide at least 25 lbs. combined pullout strength when used with QED tubing.
QED is not responsible for loss of the pump if non-QED tubing is used.
Description
Figure 2 (Page 3) shows the main components of the Portable MicroPurge Pump and
the assembled pump. The body twists of f for quick change of the disposable poly-
ethylene (PE) bladder . The bladder simply pushes on to provide a leak-tight seal for
most applications without the use of clamps.
Description

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11
9
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8
1
3
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14
Item No.
2
5
6
7
8
1
1
3
2
2
38434EP
38436
38470
38471
35172
Cover
Grab Plate 1/4” Tube x 1/8” Tube
Plate 1/4” Tube x 1/8” Tube
O-Ring, Viton
Seal Discharge
Seal Air Supply
O-Ring, Viton
Ball, Teflon
Ball Stop
9138438EP
10 1
38677
38676
QTY Part No. Description
1
3
4
11
12
13
1
1
1
1
1
1
38437EP
38439EP
38424
38440EP
38435
Head
Inlet
Bladder PE
Body
14 1 38833 3/4 Sample Pro Eye Bolt
Description
13
5

4
Assembly
Use Figure 2, (Page 3) to identify main pump components and Figure 3, (below) to
identify O-ring locations. Detailed exploded view drawing of the upper end of the
pump are shown on pages 7 and 8.
1. See Figure 3 (below) to identify locations where O-rings and seals are to be installed
and install all O-rings and seals.
2. Connect the bladder to the pump head. The PE bladder pushes onto the pump head
barb until the bladder fully covers the barb.
3. Attach the pump head to the body by engaging the bayonet dimples into the grooves
and twisting them together until the engagement snap is felt and head and body
alignment marks line up.
4. With the pump on its side, insert the inlet check ball (same as the discharge check
ball) into the side of the pump head, then press in the inlet valve seat by pushing
with your thumb. Pre-wetting the parts with distilled water is recommended to aid
assembly
.
5. With the pump vertical, insert the discharge check ball into the top of the pump
head, place the discharge ball stop into place above the check ball, using the sup-
plied needle nose pliers, see Figure 5, (Page 6).
6. For the push-in tubing fittings, place the thin metal lock disk in the "TOP" up posi-
tion on the top of the pump head, with the lock disk edge slots lined up with the
posts on the pump head. Then place the thick, upper plate on top of the lock disk,
again with the slots and posts lined up. Finally, twist the pump cap onto the pump
head until the engagement snap is felt and the hole in the side of the pump cap lines
with the inlet port. Cover and body alignment marks will line up.
Discharge Seal
1/4 Tube-38677
Ball 38471
Ball
38471
Ball Stop 38438EP
Air Tube Seal 38676
Inlet O-Ring 38470
Inlet
38439EP
Head
O-R ings
35172
Bladder
O-Ring
38470
Head 38437EP
Figure 3
Assembly

5
Disassembly
Use Figure 2, (Page 3) to identify main pump components and Figure 3, (Page 4) to
identify O-ring locations.
1. Reverse assembly sequence, taking care to position pump to retain check balls
during removal of valve seats and stops. A screwdriver can be used if necessary to
remove the inlet valve seat.
2. Pull the PE bladder off of the pump head barb by pulling firmly, then discard.
Cleaning / Decontamination Note
If it is desired to operate the pump outside the well, such as in a pail for decontamination
purposes, the operating pressure of the pump should be reduced to 35 PSI or less to
avoid rupturing the bladder
Attaching Tubing
A tubing insertion tool is provided to make the small-diameter tubing used on this pump
easier to grip and push into the pump. The tool is shown in Figure 4.
1. Cut both tubes to equal length; cutting the tubes at a slight angle will make insertion
easier.
2. Grip the ¼” tube ONLY in the large groove in the insertion tool, leaving ¾-1” of tubing
extending from the end of the gripping jaw.
3. Hold the insertion tool at the jaw end of the tool, FORWARD of the tool’s pivot point,
squeezing the jaws together.
4. Push the ¼” tube into the pump while rocking the tool slightly Watch and feel for the
tube to push ¼” past the point of initial resistance into the pump.
5. Pull back on the tube to check that it is inserted firmly.
6. Repeat for the 1/8” air tube.
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Figure 4
Assembly/Disassembly

Using the Supplied Needlenose Pliers for Assembly/Disassembly
Needlenose pliers are provided to make handling of certain smaller parts easier to
handle during cleaning assembly and disassembly. Figure 5 demonstrates placement
of the check ball stop into the pump head.
6
Figure 5
Assembly/Disassembly

Item No.
2
5
7
8
1
1
1
1
1
1
38434EP
38436
38471
35172
Cover
Grab Plate 1/4” Tube x 1/8” Tube
O-Ring, Viton
Ball, Teflon
Ball Stop
Seal Air Supply
Seal Discharge
Plate
91
1
38438EP
QTY Part No. Description
7
2
5
11
9
7
8
13
12
1 4
14
13
12
11
138833
38435
38677
38676
3/4 Sample Pro Eye Bolt
Figure 6
Figure 6