Industrial Valves
SCHROEDAHL TDM
“High pressure applications”
The TDM is a heavy-duty, multi-stage automatic recirculation valve developed for high-pressure centrifugal pump protection. It is designed to safely handle very high differential pressures while ensuring cavitation-free, low-noise operation. The TDM is commonly used where standard ARVs are not sufficient, especially in high-pressure boiler feed and injection systems.
Key Features:
- Multi-stage pressure reduction (up to 5 stages)
- Forged body for extreme pressure
- Flow-sensitive modulating bypass
- Integrated bypass non-return function
- Extremely robust and durable
- Designed for severe operating conditions
Technical specifications:
Nominal diameter
DN 25–300 / NPS 1–12
Pressure class
PN 63–400 / Class 150–2500
Temperature (max.)
Up to 230 °C / 446 °F (other temperatures on request)
Housing material
1.0460 / A105,1.0571 / LF2,1.4404 / F316L,1.4462 / F51,1.4501 / F55
Housing type
Forged
Media
Liquids of all kinds (water, oils, chemicals, and others)
Flanges
EN 1092-1, ASME B16.5, ISO 7005, JIS, JPI, welding ends on request
Designs
Vertical installation, horizontal installation, manual start-up, enlarged nominal width of the bypass, degassing connection
Number of stages (max.)
5
Number of controlled stages
5
Operating range (max.)
Delta up to max. 230 bar
Other
Bypass differential pressure 20–230 bar