Pressure reducing valve ARI-PREDU DN20 with DMA250 actuator (0.5 - 1.2 bar)

Downstream pressure reducing valve ARI-PREDU DN20 with DMA250 actuator (0.5 - 1.2 bar)

The ARI-PREDU pressure reducing valve is designed to operate as a direct acting proportional regulator, without auxiliary power supply, to reduce and regulate high inlet pressure to lower outlet pressure. The pressure is regulated after the valve, i.e. the valve closes when the pressure builds up.
When operating the pressure reducing valve ARI-PREDU with water vapor and liquids with a temperature above the permissible one, a condensate tank is required.

Areas of use:

ARI-PREDU pressure reducing valves are used to equip enterprises in the food, energy, pulp and paper, metallurgical, petrochemical, pharmaceutical, and chemical industries.

Peculiarities:

• ARI-PREDU pressure reducing valves provide flow control without the need for electrical or pneumatic power.
• They are equipped with a condensate tank - in order to protect the drive diaphragm at high ambient temperatures.
• Compact design range.
• Easy replacement of actuator and spring.
• Construction without support legs.
• Threaded seat ring.
• Spindle seal with stainless steel bellows.

Main technical data:

• Working medium: steam, neutral liquids and gases.
• Nominal diameter: DN15 - DN80, DN100 - DN150 - on request.
• Nominal pressure: PN16, PN25 - PN40 - on request.
• Operating temperature: -10...+300°С.
• Setting range (actuator DMA 250): 0.5 - 1.2 bar.
• Accession: flange.
• Mounting position: vertical, driven down.