RG4 Series - Modulating Valves

Product Type(s) : Regulating Valves
Description :

Continuous flow and pressure control.



The RG4 modulating valve is designed for continuous flow and pressure control. It is equipped with a diaphragm actuator and positioner.


  • 3-A approved
  • ATEX compliant models
  • Profile seals with ID markings that eliminate gaps and facilitate ordering of spares
  • Flexible design - the shaft and seat can be changed to accommodate changed Kvs values (fully developed modular system)
  • Easy to maintain - the valve insert can be lifted out completely
  • Valve design and testing according to DIN IEC 534

All stainless steel product contact parts are made of AISI 316L / DIN EN 1.4404 grade material. Available in nominal dimensions DN 25 – DN 150 and 1” – 4”. In addition, SPX FLOW offers RG4 modulating valves in noise reduced design.

Modulating Valve Sizing Request || US Download the PDF form, complete and submit. A local SPX FLOW agent will be contacted with your valve sizing request.