Fixed span downstream-referenced flow controller
The Model 300 flow controller provides a stable flow rate when upstream pressure conditions vary, providing the downstream pressure remains constant. The maximum flow rate available is 1.6 L/min with ambient downstream pressure.

Available with standard knob, Spectrol 3- or 4-wheel 10-turn digital dial, or with screwdriver adjustable stem.

The Model 300 comes standard with 1/8" external tube fittings (EAOR22). Other fittings are available.

All flow rates listed in the product number tables are based on N2 at 40 psi inlet pressure. Maximum inlet pressure is 200 psi