Schroedahl AK-Series

The AK series pressure reducing control valves enable reliable controllability even with high pressure differences and with the necessary broad rangeability. The multi-stage design of the throttle body makes possible reduction of even very high pressures with low wear.

The AK series is characterised by the special design of the valve plug. These are designed with milled chambers on the cylindrical body that are specially tailored to the respective application. This means that even very small Kv values can be reliably controlled. The special arrangement of the chambers on the throttle unit also results in the flow being deflected, which reduces speed and further minimizes resulting wear. This ensures that the valve operates reliably over a long period of time.

product

Type AK

Features:

  • Cavitation-free, low-noise, multi-stage throttle body in a cascade design with axial flow direction under high pressure
  • Identical procedural characteristic or according to valve sizing
  • Screwed-on housing cover
  • Designed for extreme high pressure control and to avoid cavitation damage and to be suitable for a wide range of applications
  • The multi stage throttle body is designed as a cascade with an axial flow direction permits an extremely wide application range of up to 50:1 at constant high pressure loss without cavitation problems

Applications:

High-pressure control, high-pressure injection for power plant and process technology applications

Technical Data:

Nominal diameter: DN 15 – 100 / NPS 1⁄2 – 4
Pressure class: PN 16 – 640 / Class 150 – 2500
Temperature (max.): 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
Medium: Water
Flanges: EN 1092-1, ASME B16.5, ISO 7005, JIS, JPI, welding ends on request
Designs: Angle type, globe type
Actuators: Electric, pneumatic, hydraulic
Number of stages (max.): 6
Number of controlled stages (max.): 6
Operating range (max.): 1:50

Types

Sectional drawing (angle type)

Parts list (globe type):
Parts list (globe type):