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Home : Products : Flow Limiting Valves - Externally Adjustable : Frese SIGMA Compact DN50-DN300

Technical info

Images, technotes, drawings etc.

Frese SIGMA Compact

Dynamic Balancing Valve

The Frese SIGMA Compact is an externally adjustable dynamic balancing valve that provides simple, accurate and reliable flow limitation and isolation in heating and cooling systems.

The Frese SIGMA Compact can be used in both heatingand cooling systems for the effective distribution of flow in various sections of the system.The Frese SIGMA Compact can be used instead of traditional double regulating valves and can be installed in both variable flow systems and constant flow systems.

The Frese SIGMA Compact can be set to the required position easily by using the scale, to limit the flow rate in certain parts of a system, eliminating overflows and the unnecessary wastage of energy. The internal differential pressure control function of the Frese SIGMA Compact ensures that the set flow rate is limited irrespective of differential pressure fluctuations in the system.

The hand wheel can be used to close the valve and to open it to the preset flow.

Benefits

Easy to size and select as only the flow rate is required
Simplified system design with the number of balancing valves being reduced
Removes the requirement for main circuit or branch balancing valves in the system
Works as a flow limiter ensuring no overflows
Easy to install and adjust on site
Provides flexibility if the system is modified after the initial installation
Simplifies the commissioning process and reduces commissioning time due to automatic balancing of the system
High level comfort for the end-users as a result of the correct balance of the hydraulic system
Reliable operation as a dynamic balancing valve automatically finds the hydraulic balance regardless of pressure fluctuations in the system

Features

Easy adjustment of the flow using the clear preset scale on the valve
Hand wheel provides an isolation function up to 10 bar differential pressure
No minimum straight pipe lengths required before or after the valve
Built-in P/T plugs for needle system
Size range: DN50 to DN150
Flow range: 2,480 to 195,000 l/h
Maximum differential pressure: 800 kPa

Downloads

TechnoteSIGMA Compact

Mounting instruction

Declaration of ConformityFrese SIGMA Compact DN50-DN150