Constant Head Permeability Cells are used to study the behaviour of relatively coarse-grained soils, such as sands and gravel, in their natural state with respect to water flow.
The cells have an transparent plexy or metal body with 2 pressure points at different levels and an aluminium base and head.
TS-1305A Metal panel is fitted with 2 manometer tubes each being 1000 mm long. Each tube has its own valve.
TS-1309 Constant-Head Filter Tank, made of transparent plexy, has separate valves for inlet, outlet and overflow. Supplied with metal carriying case for wall mounting.
The Manometers Panel, Sliding Tamper, TS-1309 Constant-Head Filter Tank and The Equipment for De-Airing water should be ordered separately.
- ASTM D2434