
PERMEABILITY APPARATUS FOR GEOTEXTILE - AUTOMATIC - ASTM D4491 - FALLING HEAD TEST - NO LOAD CONDITION
Model Number : GT-101F
Closed loop system comprises of Main working unit mounted on Table Top Bench with back support, Upper unit made of Transparent acrylic material, Geo‑textile specimen holder assembly between Upper & Lower unit, Inlet and outlet valves with PVC Pipe network, Head change measurement using Automatic Solenoid valve, Continuous Liquid Level Sensor & Dedicated HMI Touch screen controller. Complete with Overhead and Bottom Collection tank.
Compliance with following International Standards :
ASTM D4491, EN ISO 11058,IS 14324
Governing principle :
A column of water is allowed to flow through the geo textile and reading of head changes versus time is taken. The flow rate of water through the geo textile shall be slow enough to obtain accurate readings.
Comprises of Following Parts and accessories :
- Vertical permeability tester with pressure differential method to determine falling head loss.
- Automatic head change determination using continuous fluid level sensor & Dedicated HMI Touch screen controller
- Equipped with solenoid valve at drain for complete automatic operation
- Automatic results & calculation as per ASTM D4491, EN ISO 11058
- Main working unit mounted on Table Top Bench with back support
- Upper & Lower unit made of Transparent acrylic material, which are fastened together
- Geo‑textile specimen holder assembly between Upper & Lower unit
- Inlet and outlet valves with PVC Pipe network
- Low temperature water bath to maintain water temperature.
- Complete with Overhead and Bottom Collection tank.
- Equipment will be able to perform calibration requirements as per ASTM D4491, EN ISO 11058 Standards.
Note:
Essential accessories are required to perform the entire experiment. (shall be arranged by the end user)
- R.O. Water, having ≤ 6 ppm dissolved oxygen content.
- Dissolved Oxygen Meter
- Digital Stop Watch
- De-airing system with Vacuum arrangement
- 2 HP AIR COMPRESSOR WITH 25 LTR. TANK @ additional cost RS.25,000/-+gst
| Overall Dimensions | 1150 X 600 X 1600 (L X W X H) MM |
|---|---|
| Can hold specimen | 50 mm dia |
| Weight (Approx) | 60 kgs |





