DUV Steam conditioning valve

Features
- Particularly large power range thanks to integrated motive steam cooling system for perfect cooling
- For optimum handling of difficult operating conditions, high-quality temperature control and optimum protection against temperature shocks (valve and piping)
- Low-noise, multi-stage design of the throttle body (perforated bushing)
- Screwed cover or self-sealing design
- High quality multi-level perforated bushing design for pressure control and quiet operation
- Special solutions for installation in existing systems possible


Features and advantages
Pressure reduction via multi-stage controlled, sub- critical expansion is particularly low-noise.
- The valve seat and perforated basket can be replaced
- Large control ratio for control in the start-up range with high differential pressure
- Low-maintenance, adjustable stuffing box (packing pure graphite)



Options:
- Balanced plug
- Armoured sealing surfaces
- Heating and drainage nozzles

Designs according to customer requirements are also available.
All common drive types can be used.

Technical data
Nominal diameter: DN 25 – 1200 / NPS 1 – 48
Pressure class: PN 40 – 640 / Class 150 – 2500
Temperature (max.): Up to 600 °C / 1120 °F and above
Housing materials: 1.0460 / A105
1.5415
1.7335 / A182F12CI.2
1.7383 / A182F22CI.3
1.4903 / A182F91
Housing type: Forged
Media: Superheated steam
Flanges : EN 1092-1, ASME B16.5, ISO 7005, JIS, JPI, (welding ends on request)
Designs: Angle type, globe type
Actuators: Pneumatic, electric, hydraulic
Number of stages (max.): 9
Number of controlled stages (max.): 4
Operating range (max.): 1:40
Other: The DU type requires injection pressure control valve AK