HDPE Tubing Footvalves

Riser Tubing	High density polyethylene (HDPE) tubing is most frequently used. It is low cost, provides high strength and durability, and good sampling properties. Available in various sizes, the tubing comes in coils of 100, 200, or 500 ft. (30, 60, or 150 m). PTFE tubing is also available.
Footvalves	Footvalves consist of a check ball inside the valve body, and are available in Delrin or stainless steel, in a variety of sizes from 5/8” to 1” (16 mm to 25 mm) diameters. Tapered threads enable the footvalve to self-tap onto either end of the riser tubing.
Pumping Mechanisms	A surface pumping mechanism handles larger volumes of water and provides higher pumping rates for longer periods of time. The HydroLift II electric pump, gasoline Power Pump II, and Hand Pump Handle are available. The Mini Inertial Pump (403 MIP) consists of two stainless steel inserts and a check ball that are easily installed inside the 1/4” x 0.17” (6mm x 4.3 mm) tubing.
Flow Rates	Flow rate is a function of the momentum generated in the tubing. It varies with tubing length, submergence depth of the footvalve, flexing of the tube, and the rate at which the tubing is pumped - Up to 7.6 L/min (2 gpm) with 5/8” x 1/2” (16 mm x 12.5 mm) tubing Higher volumes are obtained with the use of electric or gasoline powered surface pumping mechanisms.

Footvalve	Footvalve Diameter	Tubing Selection
403 MIP	1/4” (6 mm)	1/4” x 0.17” (6 mm x 4.3 mm)
D16	5/8” (16 mm)	5/8” x 1/2” (16 mm x 12.5 mm)
SS16	5/8” (16 mm)	5/8” x 1/2” (16 mm x 12.5 mm)
SS19	3/4” (19 mm)	5/8” x 1/2” (16 mm x 12.5 mm)
D25	1”(25 mm)	5/8” x 1/2” (16 mm x 12.5 mm)

Files and software available to download:

Data Sheet
User Guide