Model 401 PTFE Flo-Controller
Description
The Model 401 sets the standard in flow automation. Imagine a
unit, deep in your system, that will control flow rates remotely.
No adjusting manual needle valves every few hours. No waste of
expensive chemicals. Your interface (maybe hundreds of feet away)
can provide the Model 401 with a proportional 4-20 mA signal, and
the 401 will do the rest. If your pressure fluctuates, the Model
401 automatically opens and closes its internal valve to maintain
a constant flow rate. Only Teflon® PTFE brand resin, Kal-Rez®,
and sapphire wetted parts - compatible with solvents, acids like
hydrofluoric, or alkalines. Imagine blending chemicals with
incredible precision, never wasting a drop. Imagine never again
having to make small, abstract adjustments to your valves.
Imagine a system so easy to integrate that you’ll never look
back. The Model 401 Flo-Controller...because smart companies need
smart tools.
The Model 401 has two components - the valve unit and the control unit. The valve unit is sealed and all flow connections are made to it. The control unit connects to the valve unit via the standard 10 foot cable. This control unit has a terminal strip where all electrical connections are made. A DIN rail clip is provided for easy mounting of the control unit. An integrated digital display and status LED’s inform the user of flow rate, setpoint, error conditions, etc.
Ranges
| Model Number | Flow Range | Typical Diff. Pressure Range | Standard Fittings | Valve Unit Dimensions |
| 401-A100 | 15-100 mL/minute | 12-30 psi | 1/4" male flare | 4.8"x8.3"x3.3" |
| 401-A500 | 50-500 mL/minute | 12-30 psi | 3/8" male flare | 4.8"x8.3"x3.3" |
| 401-A1000 | 100-1000 mL/minute | 12-30 psi | 3/8" male flare | 4.8"x8.3"x3.3" |
| 401-A2000 | 0.2-2.0 L/minute | 12-30 psi | 3/8" male flare | 4.8"x8.3"x3.3" |
| 401-A5000 | 0.4-5.0 L/minute | 12-35 psi | 1/2" male flare | 4.8"x8.3"x3.3" |
| 401-A8000 | 0.6-8.0 L/minute | 12-35 psi | 1/2" male flare | 4.8"x8.3"x3.3" |
| 401-A10000 | 1.0-10.0 L/minute | 12-35 psi | 1/2" male flare | 4.8"x8.3"x3.3" |
Options and Accessories
Available
Signal Configurations for the Model 401- Three signal
configurations are available:
| Configuration Suffix | Power Requirement | Input/Output Signal Type |
| None | 24 VDC, 1.0 A | 4-20 mA |
| 401-Axxxx-5 | 24 VDC, 1.0 A | 1-5 VDC |
| 401-Axxxx-10 | 24 VDC, 1.0 A | 0-10 VDC |
Example: To
order a Model 401 for 200-2000 mL/minute with 0-10 VDC inputs and
outputs, order a 401-A2000-10.
To order a Model 401 for 15-100 mL/minute with 4-20 mA inputs and
outputs, order a 401-A100.
Custom Cable Lengths - Standard valve units come with 10 feet of cable; order custom lengths (up to 25 feet) to suit your needs