Model 573 segmented ball style control valves are used in all kinds of demanding applications, oil and gas production and chemical process industries. It is also well suited for high flow, low pressure drop service. The 573 is used in both throttling and on/off control of liquids or gases.
The straight through unrestricted flow path provides higher capacity than globe style valves. A splined shaft provides accurate control in throttling operations and flexibility in actuation options.
| SIZE | END CONNECTION | |
| RF FLANGED CONNECTION | ||
| ASME CLASS 300 | ||
| 1" NPS (25mm DN) | ü | |
| 1-1/2" NPS (40mm DN) | ü | |
| 2" NPS (50mm DN) | ü | |
| 3" NPS (80mm DN) | ü | |
| 4" NPS (100mm DN) | ü | |
| 6" NPS (150mm DN) | ü | |
| 8" NPS (200mm DN) | ü | |
| 10" NPS (250mm DN) | ü | |
| 12" NPS (300mm DN) | ü | |
| 16" NPS (400mm DN) | ü | |
| AVAILABLE SHUTOFF CLASSIFICATION | |||
| VALVE TRIM | SHUTOFF CLASS | ||
| COMPOSITION BALL SEAL | CLASS VI | ||
| METAL BALL SEAL | CLASS IV | ||
| FLOW RING | 5% OF VALVE CAPACITY AT FULL TRAVEL | ||
| NOTES: | Classes and testing per ANSI/FCI 70-2 and IEC 60534-4. | ||
| Tested at the service pressure drop, or 50 Psig (3.4 BARG), whichever is lower. | |||
| CHARACTERISTIC | PREFERRED FLOW DIRECTION |
| MODIFIED EQUAL PERCENTAGE | FORWARD THROUGH BALL SEAL INTO BALL |
