BPV Back pressure regulator

Function
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.

Brand:
Schroedahl
Type:
Back pressure regulator
Category
Valves > Regulator
Markets
Industrial > Pulp & Paper
Paints & Colors
Industrial > Mining
Industrial > Chemical
Industrial > Food & Beverages
Industrial > Nuclear
Industrial > Petrochemical
Textile
Industrial > Heating and Cooling
Industrial > Industrial Boilers
Application
Shut-off and control valves
Product Design
Inline
Benefits

Product features
- 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

Performance data

Technical data
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

Construction features

Installation information

The BPV is used in the pipeline at the point where the highest pressure level is required. We recommend installation directly to the tank.

Design Standard

Design standard ANSI:
Yes
Design standard DIN:
Yes

Unit

Unit Metric:
Yes
Unit Imperial:
Yes

Temp

Max C°:
230.00
Max F°:
446.00

Pressure Rating

Pressure rating PN:
PN 320,
PN 40,
PN 400,
PN 63,
PN 100,
PN 16,
PN 160,
PN 25,
PN 250
Pressure rating class:
150,
1500,
2500,
300,
600,
900

Nominal size

Nominal Size [mm] (DN):
100,
125,
150,
200,
25,
250,
300,
32,
50,
65,
80,
40
Nominal Size [Inch] NPS:
4,
5,
6,
1,
1.5,
10,
12,
2,
3,
2.5,
8

Housing

Housing Material:
1.0460 / A105,
1.0571 / LF2,
1.4404 / F316L,
1.4501 / F55
Housing Type:
Forged

Stages

Number of stages:
1
Number of controlled stages:
1

Other data

Fluids:
All liquids
Auxiliary Energy (Actuation):
Not Applicable
Stem packing:
Not Applicable
Fail-Safe Function:
Off
Flanges:
As intermediate flange version (Z version) or with integrated flanges (K version)
Operating range:
Delta p up to max. 10 bar
Contact

Schroedahl Customer Care

SCHROEDAHL GmbH

- A subsidiary of Circor International -

Alte Schönenbacher Str. 4
51580 Reichshof-Mittelagger
Germany

Phone +49 2265 9927-0
Fax +49 2265 9927-947
schroedahl@circor.com