Bladder Pumps

Designed for Groundwater Quality and Pollution Monitoring.

Rental

Sales

SKU

BPUMP

Together with the USGS, Geotech designed the original bladder pump for groundwater quality and pollution monitoring.

A bladder pump is a non-contact, positive displacement, pneumatically operated pump that uses compressed air. It consists of a housing that encloses a flexible bladder made of PTFE or polyethylene. A screen is attached below the bladder to filter out any material that may interfere with check valves. Bladder pumps are operated by air compressors, compressed air or compressed nitrogen tanks.

Bladder pump advantages include:

ease of operation
portability
small diameter
ability to pump large volumes of water relative to their size

They can pump to the surface from as deep as 1000 (305m) feet with minimal agitation for the best representative samples.

A drop tube assembly is also available to allow users to sample from a greater depth. For the Geotech Bladder Pump, the drop tube assembly allows users to sample up to 55m.

The Geotech Bladder Pump is available from Air-Met Scientific for sale or rental.

For more information on the Bladder Pumps, contact your local Air-Met office.

Features

Geotech Bladder Pump Features

True low flow capability for less agitation
Proprietary resin grade virgin PTFE bladder for long life
Constructed of #316 SS for durability
Dedicated or portable turnkey systems
Screened intake extends bladder life
Designed for wells as small as .75" (1.9cm)
Optional Drop-Tube assembly available for sampling from greater depths
Limited lifetime warranty on dedicated stainless steel systems
Compatible with the Geocontrol PRO and BP Controller units

Specifications

Geotech Bladder Pump Specifications

	1.66, 36"	1.66, 18"	.850, 18"	.675, 18"
Pump Housing	316 SS	316 SS	316 SS	316 SS
Bladder Material	Virgin PTFE	Virgin PTFE	Virgin PTFE	Virgin PTFE
O.D.	1.66" (4.2 cm)	1.66" (4.2 cm)	.850" (2.2 cm)	.675" (1.7 cm)
Length w/Screen	38" (96.5 cm)	20" (51 cm)	18 5⁄8" (47.3 cm)	18 3⁄4" (47.6 cm)
Weight	5 lbs. (1.9 kg)	2.5 lbs. (0.93 kg)	1.1 lbs. (.5 kg)	.83 lbs. (.4 kg)
Volume/Cycle	21.1 oz. (625 ml)	10.5 oz. (313 ml)	.9 oz. (29 ml)	.5 oz. (15 ml)
Min. Well I.D.	2" (50 mm)	2" (50 mm)	1.00" (2.5 mm)	.75" (1.9 mm)
Operating Pressure	10-450 psi	(.7-31 bar) 10-450 psi	(.7-31 bar) 100 psi	(6.9 bar) 100 psi (6.9 bar)
Min. Operating Pressure	5 psi (.34 bar) ash*	5 psi (.34 bar) ash*	5 psi (.3 bar) ash*	5 psi (.3 bar) ash*
Maximum Depth	1000' (305 m)	1000' (305 m)	200' (61 m)	200' (61 m)
Air Line (ID x OD)	.17" x .25" (4 mm x 6 mm)	.17" x .25" (4 mm x 6 mm)	.17" x .25" (4 mm x 6 mm)	.17" x .25" (4 mm x 6 mm)
Discharge Line (ID x OD)	.25" x .375" (6 mm x 10 mm)	.25" x .375" (6 mm x 10 mm)	.25" x .375" (6 mm x 10 mm)	.25" x .375" (6 mm x 10 mm)