• News
• Products
• Applications
• References
• Technical info
• Contact
• About us

PV-SIGMA Compact, Spectrum-series

Dynamic Pressure and Flow Regulation

PV-SIGMA Compact, Spectrum-series can be installed in both domestic and commercial heating and cooling systems.

The PV-SIGMA Compact Spectrum-series combines the SIGMA Compact dynamic balancing valve positioned in the flow and the PV Compact Spectrum-series differential pressure control valve positioned in the return.

The Frese PV-SIGMA Compact Spectrum-series system is designed to provide flow and differential pressure regulation under varying system conditions while simplifying commissioning.

The Frese PV-SIGMA Compact Spectrum-series system operates by limiting flow and pressure in the system, supporting efficient operation and helping to reduce noise associated with excess differential pressure.

Benefits

• Simple presetting of flow and differential pressure
• High Kv value supporting low pressure loss and efficient system operation.
• Positive close off to prevent rising differential pressure when control valves in the controlled circuit are fully closed
• Flow and differential pressure can be adjusted independently of each other
• Tamper-proof presetting device on top of the valve, meaning there is no need for valve sealing after presetting
• Differential pressure can be set and adjusted on site
• Simple presetting using the scale on the cap
• The PV Compact Spectrum-series helps reduce noise caused by high differential pressure whilst the SIGMA Compact limits the flow in a system, helping to prevent overflows.

Features

• Size range: DN15 to DN50
• Maximum flow: 10350 l/h
• Maximum differential pressure 400 kPa
• Setting ranges: 5-30 kPa, 20-60 kPa and 20-80 kPa
• Differential pressure regulation, flow regulation, drain and PT plugs as standard
• Isolation in the flow direction on the SIGMA Compact according to EN1349 Class IV
• Isolation in the return flow using the supplied ball valve
• Compact housings for easy installation