Schroedahl Type AV High-Pressure Control Valve for Water Applications in Single or Multi-Stage Design as Perforated Bushing
Product Features
- Single-stage and multi-stage cavitation-free, low-noise throttle body design (perforated bushing)
- Robust valve reduction unit with single- or multi-stage perforated bushing system
- Unloaded and loaded throttle bodies
- Screwed-on housing cover
- Linearly modifi ed characteristic curve
Applications
- High-quality high-pressure control valve for the power plant and process industry. Suitable for feed water control (100%)
Nominal Diameter: DN 50–600 / NPS 2-24
Pressure Class: PN 16–640 / Class 150–2500
Product Features
- Single-stage and multi-stage cavitation-free, low-noise throttle body design (perforated bushing)
- Robust valve reduction unit with single- or multi-stage perforated bushing system
- Unloaded and loaded throttle bodies
- Screwed-on housing cover
- Linearly modifi ed characteristic curve
Applications
- High-quality high-pressure control valve for the power plant and process industry. Suitable for feed water control (100%)
Technical Data
| Nominal diameter | DN 50–600 / NPS 2-24 |
| Pressure class | PN 16–640 / Class 150–2500 |
| Temperature (max.) |
Up to 280°C / 536°F |
| Housing material | 1.0460 / A105 1.5415 1.7335 / A182F12CI.2 1.7383 / A182F22CI.3 1.4903 / A182F91 1.6368 1.4404 / A182F316L |
| Housing type | Forged |
| Media | Water, Vapor, Condensate |
| Flanges | EN 1092-1, ASME B16.5, ISO 7005, JIS, JPI, welding ends of request |
| Designs | Angle Type, Globe Type |
| Actuators | Pneumatic, Electric, Hydraulic |
| Number of stages (max.) | 7 |
| Number of controlled stages (max.) | 4 |
| Operating range (max.) | 1:50 |
Function
The pressure reducing control valves of the AV series enable reliable control even under difficult operating conditions.
The series is characterized by the use of perforated throttle bodies as control units. Individual characteristic curves can be achieved by adapting the hole patterns to the particular requirements.
The optional pressure-balanced design also enables actuating forces to be reduced, which permits the use of smaller and more cost-effective actuators even at high pressures.
The parts of the throttle body are perfectly matched to each other so that best sealing properties are guaranteed even without the use of additional elastomers.
