Filtre à embout pour piézomètre à colonne montante Slope Indicator
- DGSI -
The standpipe filter tip provides a filtered intake for standpipe piezo meters.
The tip, available in polyethylene or porous stone, is supplied with adapters to fit 1/, 3/, and 1-inch standpipes.
|Filter material||Polyethylene tip is made from hydrophilic polyethylene and has 60 micron pores. Porous stone filter is made from fused aluminum oxide (Norton Alundum) and has 68 micron pores.|
|Filter Size||Filter is 12 or 24 inches long and formed into 1.5" diameter cylinder.|
|Note on Plastic Pipe Couplings||Slip couplings, although somewhat cheaper, sometimes catch falling bentonite, causing improper placement of the seal due to bridging. To prevent this, construct the riser pipe from flush-coupled plastic pipe. The smooth profile of the flush-coupled pipe allows bentonite chips to fall to the intended depth of the seal.|
|SI51417402||Polyethylene, 12" (305 mm)|
|SI51417404||Polyethylene, 24" (610 mm)|
|SI51405102||Porous Stone, 12" (305 mm)|
|SI51405104||Porous Stone, 24" (610 mm)|