The Frese ALPHA High Corrosion Resistant Wafer dynamicbalancing valve has been developed for use in a wide range ofarduous systems for the accurate and efficient distribution offlow. The ALPHA HCR Wafer can be used in various applications including seawater cooling, filtration and water treatment.

To limit the flow and maintain a constant differential pressure,the ALPHA HCR flow cartridge is installed within the valvehousing, ensuring the design flow rate is achieved irrespective of fluctuating pressure conditions.

The ALPHA HCR cartridge is removable for ease of maintenance and system flushing and the patented design ensures silent operation when the system is live.

The introduction of the ALPHA HCR Wafer and flow cartridge enables Frese to offer the benefits of dynamic balancing to a variety of new,exciting seawater applications including seawater cooling, filtration and water treatment.

Manufactured from Nickel Aluminium Bronze, the Frese ALPHA HCR Wafer is available in dimensions DN50 to DN450 suitable for flow rates from 3.8 m³/h to 1,584 m³/h.

The ALPHA HCR Wafer works independently therefore it can be   installed in either single or multiple parallel distribution lines.

Furthermore, the independent nature of the valve provides total system flexibility with no re-commissioning required should the system be extended. In addition, it is also possible to use back flush processes with the ALPHA HCR dynamic balancing valve if necessary.

Applications for the Frese ALPHA HCR dynamic balancing valve include:

·· Seawater District Cooling (SWDC)

·· Seawater Air Conditioning (SWAC)

·· Ballast Water Treatment (BWT)

·· Ocean Thermal Energy Conversion (OTEC)

·· Seawater SOx scrubbers

Frese ALPHA HCR Wafer

Technical Data ·

Size range:                DN50 to DN450

P/T Plugs                   Nickel Aluminium Bronze

Fasteners:                  Duplex Steel

Pressure Class:           PN16

Temperature:             -20 to +32°C

Diff. Pressure Range:   13 - 600 kPa

Flow Range:                3.8 m3/h - 1,584 m3/h

Frese ALPHA HCR Cartridge

Technical Data ·

Cartridge Material:     PPS 40% glass-reinforced (Fortron 1140L4 Black)

O-rings:                     EPDM 281

Spring:                       Hastelloy - C276 (high corrosion resistant)

Diaphragm:                HNBR reinforced

Medium Temperature: -20 to +32°C (Seawater)