Mallard – 3200 / 3201 Liquid Level Controllers
The Model 3200/3201 liquid level controller is ideal for oilfield scrubber and separator applications. Its rugged and versatile design make it the preferred choice of production operators for reliable service in a wide variety of applications. Model 3200 is available in pneumatic snap and throttling pilots, or electric SPDT and DPDT limit switches; direct or reverse action; with a variety of displacer sizes, materials, and vessel connections.
Features:
- Pneumatic snap-ECO Pilot and throttling pilot: Pneumatic model3200/3201 can be fitted with
either of these pneumatic pilots. A Snap-ECO pilot for environmentally friendly, non-bleed, and on/off applications or a throttle pilot for modulating service. The controller can be quickly and easily converted from one pilot style to the another. - Electric pilots: The model 3200 is also available with explosion proof SPDT or DPDT electric switches.
- Weather-proof case: Utilizes a gasket between its cover and case to seal out the effects of outside weathering.
- Liquid-liquid interface control: Themodel3200/3201 is well suited for liquid-liquid interface detection.
- Field reversible action: Themodel3200/3201 design makes reversing the controller action simple. Requires no additional parts or special tools.
- Displacers: Mallard offers a variety of displacer materials and designs for the model 3200/3201 to satisfy your design and application requirements. Standard material offerings are PVC, acrylic and 316stainless steel.
- Available with wetted materials that meet NACE MR0175 specifications for sour service.
Mallard – 3200 / 3201 Liquid Level Controller Data Sheet
DownloadTechnical specifications
Available end connection sizes
Threaded: 1.5" & 2"
Pilot Types & Options
Pneumatic (standard)
Snap(on/o),
0-20/0-30psig output
Throttle (modulating),
3-15/6-30 psig output
Electric (optional)
SPDT(explosion proof)
DPDT(explosion proof)
Supply pressure requirement
3-15or0-20 psig output
20-30 psig min.
6-30or0-30psig output
35-40 psig min.
Electric switchrating
SPDT:15amps @ 125, 250 or 480 VAC
DPDT:10amps@ 125, 250or480VAC
Supply & output connections
Pneumatic pilots: 1/4" FNPT
Electric switches: 1/2" FNPT
Pressure ratings
2"threaded: 6000 psig