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Home >> Control Valve >> Self-Operated Regulator >> ARI-PREDU Direct acting maintenance-free industrial self-operated pressure reducing valve
  • ARI-PREDU Direct acting maintenance-free industrial self-operated pressure reducing valve
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  • ARI-PREDU Direct acting maintenance-free industrial self-operated pressure reducing valve



    •Compact design

    •Construction without pillars

    •Exact and easy adjustment

    •Diameter independent ranges

    •Simple change of spring and actuator

    •5 exchangeable actuator sizes

    •3 exchangeable spring sizes

    •Pressure balanced by stainless steel bellow

    •Spindle sealing via stainless steel bellow

    •Secondary stem sealing (optional)



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Description



•Compact design

•Construction without pillars

•Exact and easy adjustment

•Diameter independent ranges

•Simple change of spring and actuator

•5 exchangeable actuator sizes

•3 exchangeable spring sizes

•Pressure balanced by stainless steel bellow

•Spindle sealing via stainless steel bellow

•Secondary stem sealing (optional)



ARI-PREDU Direct acting maintenance-free industrial self-operated pressure reducing valve, adopts non-pillar design and simple setting. The valves are not easy clogging of feedback pipe, maintenance-free, with reliable performance and wide application range

Main Parameters
Nominal diameter: DN15 – 150
Nominal pressure: PN16-40
Valve material: EN-JL1040,EN-JS1049,1.0619+N
Connection: Flange
Fluid medium: Neutral Gases, Vapours and Liquids

Model Category


ARI-PREDU Direct acting maintenance-free industrial self-operated pressure reducing valve
1）The pressure regulating valve is a direct acting proportional regulator, self oprated; which regulates a high inlet pressure to a smaller downstream pressure.
2）The downstream pressure is regulated, this means the valve closes when the downstream pressure rises.
3）Operating fields are to regulate fluids of the group II acc.to Pressure Equipment Directive 2014/68/EU, e.g.steam, neutral gases, vapours and liquids.
With steam and liquids, having temperatures higher than allowable working temperatures a water seal pot must be installed in the control line (to protect actuator diaphragm).
Installation in the control line can be seen in the system drawing:


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    –Body material: EN-JL 1040, EN-JS 1049, 1.0619+N, 1.4408

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    •    Straight through

    •Temperature -10°C - 450°C

    •Parabolic plug

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    •Burnished stem

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    •    Temperature -60°C up to 400°C

    •Parabolic plug, precision guided stem

    •Rangeability 50:1（DN15-150）；30:1（DN200-250）

    •Burnished stem

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    •Spring loaded PTFE-V-ring unit

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TEL : 0086-411-39977558

EMAIL : INFO@valve.ltd

LINK : www.valve.ltd​

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