Tank dewatering is vital for maximizing crude oil storage and minimizing tank corrosion, but manual operations can be costly in terms of inaccuracy, manpower and environmental liabilities. The KAM ATD™ Automatic Tank Dewatering system ensures maximum storage efficiency without the danger of hydrocarbons contaminating the draw-off line.
Sold as a complete system or as individual units that users can connect to an existing PLC, the ATD™ uses two microwave probes to monitor water levels in the tank. Communicating with a PLC, the system controls an MOV (motor operated valve) on the draw off line–opening when water levels rise, and closing when the emulsion layer has descended to the bottom of the tank.
The KAM ATD™ probe is also unique in its solid body design, preventing the accumulation of paraffin or other contaminants on the probe which prevent the probe from accurately registering rising water levels.
CLICK HERE to learn more about how the ATD™ works.
The ATD™ uses 2 microwave probes to monitor water levels in the tank. When the probe detects the emulsion layer, it signals the closing of the MOV valve on the dewatering line. Should the valve fail to close for any reason, the second probe in the tank sets off an alarm as well as triggering the closing of the MOV valve.
| Media: | Crude oil, refined products and water |
| Material: | Wetted parts–316 stainless steel*, PEEK Electronics enclosure–Copper-free aluminum or 316 stainless steel |
| Process temperature: | -40ºC to 200ºC (-40ºF to 392ºF) |
| Ambient temperature: | -40ºC to 60ºC (-40ºF to 140ºF) |
| Power: | 24 VDC/0.15 amp at 4 watts |
| Accuracy: | +/- 5% |
| Repeatability: | +/- 0.01% |
| Resolution: | +/- 0.01% |
| Outputs: | 4–20 mA Alarm relay RS232 RS485 Modbus on non-HART models HART (Optional) |
| Mounting: | 2″ MNPT seal housing for tank mounted models* 2″, 3″, or 4″ flanged seal housing for tank mounted models Flanged fixed insertion for draw-off line installations |
| Pressure ratings: | ANSI 150, 300 |
| Sensor dimensions: | Ø1.3″ x 1.25″ (33.1 mm x 31.75 mm) |
| Hazardous Area: | IECEx CML 26.0018X CML 26ATEX1071X Ex db IIB T6 Gb |
| EX enclosure: | 5.25″ x 5.65″ x 4.8″ (133 mm x 144 mm x 122 mm) |
| Shaft length: | Per user specification up to 16″ |
| Weight: | from 20 lbs. (9kg) |
* Seal Housing for 2″ MNPT Models are Carbon Steel.
with 2″, 3″, or 4″ flanged seal housing or with 2″ MNPT seal housing
Flanged fixed insertion for draw-off line installations
