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 |