QED Sample Pro MicroPurge 1.75" Bladder Pump


The Sample Pro Portable MicroPurge Pump is the first pump developed specifically to bring the advantages of low-flow sampling to sites where groundwater samples are collected from many monitoring wells with the same pump.

The Sample Pro Pump is easy to disassemble, without any tools, and simple to clean to eliminate any potential cross contamination. That includes the exclusive Sample Pro disposable bladder, which snaps in and out without any clamps, so they can be discarded after each well is sampled.

The Sample Pro pump is available in two diameters: 1.75" (4.45cm) to fit in 2" (50mm) monitoring wells or larger; and 3/4" (1.91 cm) to fit small diameter wells and direct-push boreholes. Both pump models are capable of pumping from depths up to 200 feet (61m).



Pump Model  Sample Pro 1-3/4 in.

Outside Diameter  1.75 in. (47 mm)

Length  14.75 in. (375 mm) with Push-In Fittings

16.5 in. (419 mm) with Compression Fittings

12.1 in. (307 mm) from Bottom of pump to centerline of inlet

Weight  4.25 lbs. (1.93 Kg)

Maximum Lift  250 ft. (61 m)

Volume per Stroke*  3.34 oz (100 mL)


Materials of Construction

• Body and Cover  316 Stainless Steel

• Inlet, Discharge & Head  303 Stainless Steel

• Bladder  Polyethylene

• O-Rings  Viton®


Fitting Type  Push-in Fitting w/ 316 Stainless Steel Grab Plate

• Air Fitting  1/4 in. (6.4 mm) O.D.

• Fluid Discharge  1/4 in. (6.4 mm) or 3/8 in. (9.5 mm) O.D.

Pump Volume

Milliliters: 100

Liters: .100

Ounces: 3.34

Gallons: 0.26


Pump Part Numbers  

MP-SP-4P (1/4 in. discharge, push-in fittings)

MP-SP-4C (1/4 in. discharge, compression fittings)

MP-SP-6P (3/8 in. discharge, push-in fittings)

MP-SP-6C (3/8 in. discharge, compression fittings)

Toll Free: 1-888-233-3535

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