DF234 integral control valves are primarily designed for on/off control of fluids or gasses and may also be adapted for throttle control. These tough, compact valves feature a low-profile, lightweight design that fits into tight locations and makes for easy handling. The DF234 is well suited for high pressure fluid or gas applications up to 2,250 PSIG (155 Bar).
| AVAILABLE CONFIGURATIONS | ||||||||||
| BODY | SIZE | END CONNECTION | ||||||||
| FNPT | RF (FLANGED CONNECTION) | RTJ (FLANGED CONNECTION) | ||||||||
| ASME CLASS 150 | ASME CLASS 300 | ASME CLASS 600 | ASME CLASS 900 | ASME CLASS 900/1500 | ASME CLASS 600 | ASME CLASS 900 | ASME CLASS 900/1500 | |||
| GLOBE | 1" NPS (25mm DN) | ü | ü | ü | ü | ü | û | ü | ü | û |
| 2" NPS (50mm DN) | ü | ü | ü | ü | û | ü | ü | û | ü | |
| NOTES: | FNPT = 2,250 PSI (155 BAR) COLD WORKING PRESSURE. | |||||||||
| AVAILABLE SHUTOFF PRESSURE DROPS | ||||||
| ACTUATOR ACTION | FLOW DIRECTION (PRESSURE TENDS TO) | PORT DIAMETER | NUMBER OF ACTUATOR SPRINGS | |||
| 0-20 PSIG (0-1.38 BARG) OPERATING PRESSURE | 0-35 PSIG (0-2.41 BARG) OPERATING PRESSURE | |||||
| 3 | 6 | 3 | 6 | |||
| FAIL CLOSED | FLOW UP (OPENS VALVE) | 1/4" (6.4mm) | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) |
| 3/8" (9.5mm) | 1,672 PSI (116 BAR) | 2,250 PSI (155 BAR) | 1,672 PSI (115 BAR) | 2,250 PSI (155 BAR) | ||
| 1/2" (12.7mm) | 770 PSI (53.1 BAR) | 1,867 PSI (129 BAR) | 770 PSI (53.1 BAR) | 1,867 PSI (129 BAR) | ||
| 3/4" (19.1mm) | valve will not shut off | 684 PSI (47.2 BAR) | valve will not shut off | 684 PSI (47.2 BAR) | ||
| 1" (25.4mm) | valve will not shut off | 290 PSI (20.0 BAR) | valve will not shut off | 290 PSI (20.0 BAR) | ||
| FLOW DOWN (CLOSES VALVE) | 1/4" (6.4mm) | 1,469 PSI (101 BAR) | 2,250 PSI (155 BAR) | 1,469 PSI (101 BAR) | 2,250 PSI (155 BAR) | |
| 3/8" (9.5mm) | 2,139 PSI (147 BAR) | 2,250 PSI (155 BAR) | 2,139 PSI (148 BAR) | 2,250 PSI (155 BAR) | ||
| 1/2" (12.7mm) | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | ||
| 3/4" (19.1mm) | 1,710 PSI (118 BAR) | 942 PSI (65.0 BAR) | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | ||
| 1" (25.4mm) | 784 PSI (54.1 BAR) | 392 PSI (27.0 BAR) | 1,512 PSI (104 BAR) | 1,064 PSI (73.4 BAR) | ||
| FAIL OPEN | FLOW UP (OPENS VALVE) | 1/4" (6.4mm) | 2,250 PSI (155 BAR) | valve will not shut off | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) |
| 3/8" (9.5mm) | 2,250 PSI (155 BAR) | valve will not shut off | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | ||
| 1/2" (12.7mm) | 1,193 PSI (82.3 BAR) | valve will not shut off | 2,250 PSI (155 BAR) | 2,035 PSI (140 BAR) | ||
| 3/4" (19.1mm) | 385 PSI (26.5 BAR) | valve will not shut off | 1,507 PSI (104 BAR) | 759 PSI (52.3 BAR) | ||
| 1" (25.4mm) | 177 PSI (12.2 BAR) | valve will not shut off | 807 PSI (55.6 BAR) | 345 PSI (23.8 BAR) | ||
| FLOW DOWN (CLOSES VALVE) | 1/4" (6.4mm) | 2,244 PSI (155 BAR) | valve will not shut off | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | |
| 3/8" (9.5mm) | 2,250 PSI (155 BAR) | valve will not shut off | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | ||
| 1/2" (12.7mm) | 2,250 PSI (155 BAR) | valve will not shut off | 2,250 PSI (155 BAR) | 2,250 PSI (155 BAR) | ||
| 3/4" (19.1mm) | 897 PSI (61.9 BAR) | valve will not shut off | 897 PSI (61.9 BAR) | 1,646 PSI (113 BAR) | ||
| 1" (25.4mm) | 672 PSI (46.3 BAR) | valve will not shut off | 672 PSI (46.3 BAR) | 1,288 PSI (88.8 BAR) | ||
| CHARACTERISTIC | PREFERRED FLOW DIRECTION |
| QUICK OPENING | REFER TO SHUT OFF PRESSURE DROPS |
