The Sample Pro Portable MicroPurge PumpThe Sample Pro Portable MicroPurge Pump uses a quick-change, one-piece bladder design. Compressed gas squeezes the outside of the bladder to force liquid out of the pump; there is no gas contact with the pumped water inside the bladder. Squeeze type bladder pumps are supported by years of independent research that shows they provide unaltered samples for even the most sensitive parameters.
Water enters the pump through the inlet in the upper, head section, then flows down into the bladder. The high inlet helps keep the pump fromclogging if it is accidentally lowered into a sediment-filled sump.
Check valves with stainless steel seats and Teflon check balls are located at the inlet and outlet. A replaceable inlet screen is provided for wells with high solids levels to help ensure proper sealing of the check valves. The Sample Pro Pump is shipped in a heavy-duty tube with rubber end caps to help keep the pump clean and protected between uses.
The pump is disassembled by a 1/4 turn of the cap and body; no tools are needed. The bladder pulls off for replacement. Both check valves are press-in, pull-out design, and usethe same size Teflon check ball.
Compression-type and push-in tube fitting kits are available and can be used interchangeably. Both options provide high pull-out strength, but a cable eye is also included for applications where a support cable is desired.