Dynaflo
The Model DF400 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 valve-actuator combo is used in all kinds of demanding applications, including oil and gas production, chemical process industries and severe service environments.
The self-aligning eccentric plug design and straight through flow pattern of the DF400 control valve provides tight shutoff while also allowing for higher flow capacities than other valves. The exclusive low-profile actuator provides reduced deadband and hysteresis through a combination of low-friction design with a robust splined shaft connection.
| AVAILABLE CONFIGURATIONS | ||||||||
| VALVE SIZE | END CONNECTION | ACTUATOR SIZE (DIAMETER) | STROKE | OPERATING RANGE | ||||
| RF (FLANGED CONNECTION) | ||||||||
| ASME CLASS 150 | ASME CLASS 300 | ASME CLASS 600 | ||||||
| 1" NPS (25mm DN) | ü | ü | ü | 4-1/2" (114mm) | 3-1/2" (89mm) | 7-15 PSI (0.48-1.03 BAR) | ||
| 2" NPS (50mm DN) | ü | ü | ü | 4-1/2" (114mm) | 3-1/2" (89mm) | |||
| 3" NPS (80mm DN) | ü | ü | ü | 6" (152mm) | 5-3/4" (146mm) | |||
| 4" NPS (100mm DN) | ü | ü | ü | 6" (152mm) | 5-3/4" (146mm) | |||
| AVAILABLE SHUTOFF CLASSIFICATION | |||||||
| VAVLE SIZE | BODY MATERIAL | SEAT MATERIAL | TEMPERATURE RANGE | SHUT OFF CLASS | |||
| MINIMUM | MAXIMUM | ||||||
| °F | °C | °F | °C | ||||
| ALL SIZES | LCC | METAL(1) | -50 | -46 | 650 | 343 | CLASS IV |
| PTFE SOFT SEAT(1) | -50 | -46 | 450 | 232 | CLASS VI | ||
| WCC | METAL(1) | -20 | -29 | 750 | 400 | CLASS IV | |
| PTFE SOFT SEAT(1) | -20 | -29 | 450 | 232 | CLASS VI | ||
| CF3M | METAL(1) | -325 | -198 | 750 | 400 | CLASS IV | |
| PTFE SOFT SEAT(1) | -50 | -46 | 450 | 232 | CLASS VI | ||
| NOTES: | (1) Temperature limitations for valves with Slurry Seal option may be determined by the Seal Bushing O-Ring. | ||||||
| CHARACTERISTIC | PREFERRED FLOW DIRECTION |
| LINEAR | FORWARD THROUGH SEAT RING INTO BALL |
