Pressure relief valves VPH/VRH

  • Overview
  • Product range
  • Documents
  • Related products

Reliable valves for pressure relief

The relief valve is used for protecting the components of a system against overload as a result of a pressure peak. Further, the valve is designed for controlling/limiting the system pressure by draining off the surplus water from the pressure side. The valve is designed for tap water and ultra-pure water, i.e. without additives of any kind to the medium. The relief valves are used in several applications: fire fighting and humidification systems, etc.

All VRH and VPH valves are corrosion resistant, easy to clean and have a built-in dampening chamber for stable pressure control.

The VPH valve is a two in one valve consisting of a relief valve and a directional valve making it very compact. The VPH valve is dedicated to Danfoss humidification power packs.

The VRH valve is available in different sizes to cover our broad range of pumps. The VRH 120 F has an optimized hysteresis providing an immediate opening/closing time which among others is a must within fire fighting applications.

Features and benefits

Corrosion resistant

High reliability

Built-in dampening chamber for stable pressure control

Hotel chooses Danfoss technology for fire fighting system

High-pressure components allow the hotel to build a water mist fire fighting system requiring less space, less maintenance and high reliability.

Product range

  • VRH 5-120 pressure relief vales - Danfoss High Pressure Pumps
    VRH pressure relief valve (fire fighting, humidification systems etc.)

    Flow range: 1-120 l/min, 0.26-31.7 gpm

    Pressure range: 10-210 barg, 145-3,046 psig

  • VPH 15E pressure relief valve - Danfoss High Pressure Pumps
    VPH pressure relief valve (power packs)

    Flow range: 0-20 l/min, 0-5.3 gpm

    Pressure range: 10-210 barg, 145-3,046 psig


Type Name Language Valid for Updated Download File type
Data sheet Power pack valve VPH 15E English Multiple 24 Feb, 2020 545.3 KB .pdf
Data sheet Pressure relief valve, type VRH 5, VRH 30, VRH 60 and VRH 120 English Multiple 03 Mar, 2020 599.9 KB .pdf

Related products

  • PAH pumps - Danfoss
    High-pressure pumps for tap water applications

    High-pressure pumps for tap water applications such as firefighting, dust suppression and water hydraulics.

  • Danfoss PAHT high-pressure pumps for ultra pure water
    High-pressure pumps for ultra pure water applications

    High-pressure pumps for ultra-pure water applications i.e. with de-ionized, de-mineralized or distilled water. Appropriate for critical applications such as high-pressure cleaning and humidification.

  • PAHT G high-pressure pumps - Danfoss
    High-pressure pumps for gas turbine applications

    The PAHT G pumps have been designed to meet the high demands within the gas turbine market. The pumps operate on ultra-pure water.