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Dyna-Flo Model DF400
Model DF400
Sour Service Capability Available in configurations that comply with NACE MR0175/ISO 15156 and NACE MR0103.
Compact Design The smaller, lighter design of the DF400 control valve makes them easier to handle than standard globe valves of the same size, and usually half the weight.
Field Service Friendly No special tools are required to inspect or service trim, and the actuator is field reversible without additional parts.
Versatile Trim Options Metal and soft seat trim are available in a wide variety of reduced-port trim options.
Industrial High Quality External Coatings Our standard industrial high quality external coatings provide long lasting resistance to the harshest environments.
Emissions Reducing Packing Standard low-emission packing prevents the loss of process media and helps reduce packing maintenance.
Blowout Proof Shaft DF400 shafts are made with a machined shoulder designed to provide exceptional blowout prevention.

The Model DF400 (Figure 1) is a heavy-duty eccentric plug control valve (sometimes referred to as a rotary globe valve) combined with a powerful spring-and-diaphragm actuator. This valveactuator combo is used in all kinds of demanding applications, including oil and gas production, chemical process industries and severe service environments.

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