BPV Back pressure regulator
Even the optimal and sophisticated pressure reduction of the SCHROEDAHL automatic recirculation valves and control valves set extreme conditions limits in some installations.
SCHROEDAHL back pressure regulators type BPV are used in such cases.
They increase the distance to the evaporation pressure of the medium by generating a defined pressure difference. This prevents unwanted evaporation and cavitation and ensures smooth and gentle operation.
Careful adjustment of the operating parameters between minimum flow or control and back pressure valves ensures optimum system operation.
The pressure difference at the back pressure valve as specified in the design shifts the bushing (item 204) in the direction of flow against the pressure spring (item 237). This releases the throttle cross sections at the bushing until the specified pressure difference is attained.
- Prevents evaporation and cavitation and ensures smooth operation
- Forged housing material, carbon steel or stainless steel
- Special material possible
- Internal operation (no external energy source required)
- Easy to install
- Low maintenance
Nominal diameter: DN 25–300 / NPS 1–12
Pressure class: PN 16–400 / 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
1.4501 / F55
Housing type: Forged
Media: Liquids of all kinds (water, oils, chemicals...)
Flanges: As intermediate flange version (Z version) or with integrated flanges (K version)
Number of stages (max.): 1
Number of controlled stages (max.): 1
Operation Range: Delta p up to max. 10 bar
The BPV is used in the pipeline at the point where the highest pressure level is required. We recommend installation directly to the tank.
Schroedahl Customer Care
- A subsidiary of Circor International -
Alte Schönenbacher Str. 4
Phone +49 2265 9927-0
Fax +49 2265 9927-947