Choose from our selection of plunger locks, including retractable long-nose spring plungers, locks and latches, and more. In stock and ready to ship. The plunger is designed to sit on bottom, waiting for fluid to build-up. The hydrostatic forces trigger the plunger to close. Minimal bottom-hole pressure is then required to lift the plunger to surface. Once the plunger unloads fluid it strikes the top of your well re-setting itself, falling to bottom and repeating the process. 3 is a plan view of a shift spider element 23 employed in the inventive plunger of FIG. 4 is a cutaway elevational side view of an alternative embodiment 100 of the inventive casing plunger. 5 is an elevational side view of the lower end portion of an upper valve rod segment 106 employed in inventive plunger. The plunger head is designed to work on all toilets, including low flush. The handle design features a flat surface that is perfect for plunging. After use, simply replace the plunger in the canister for neat and sanitary storage; a built-in drip tray in the canister bottom catches excess water and allows it.

Installation process in accordance with the requirements of NBN EN1536:1999

1. Positioning and drilling of the first section of the drill casing (recoverable steel casing as temporary support during the boring process)

2. While drilling, the drill casing – inside equipped with a drilling head fixed on a rod - is oscillated into the soil. (back and forth movement / twisting in place)

3. & 4. As the drilling process progresses, soil is removed from the borehole by the excavating tool (« bucket barrel » excavating the pile shaft) and additional sections of casing are jointed (added) to protect the soil from collapsing into the borehole during drilling. When drilling in non-cohesive soils below the groundwater level, a water overpressure (delta h) should be created in the temporary casing.

5. After reaching the design depth, clean-up of the borehole front, removal drilling tool, drilling fluid (water) pumped out from the bore.
Formation of the pile : insertion and lowering of the reinforcement cage, pouring of the concrete. In the presence of water, concreting is carried out by means of a plunger tube to avoid segregation of the concrete (tremie pipe technique).

Concoyle 4 Casing Plunger Tool

Concoyle 4 Casing Plunger Bolts

6. During the continuous concreting process, the temporary casing elements are progressively withdrawn whereby the concrete forms the pile shaft.