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ARI-PREDU ANSI Industrial self-operated pressure reducing valve
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ARI-PREDU ANSI 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)

•Tapered seat ring

•Screwed seat ring

•Kvs-values reduceable

•Flow divider for noise reduction (optional)

•Plug with PTFE soft seal (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)

•Tapered seat ring

•Screwed seat ring

•Kvs-values reduceable

•Flow divider for noise reduction (optional)

•Plug with PTFE soft seal (optional)


ARI-PREDU ANSI 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.
There are 5 sizes of actuator sizes and 3 sizes of springs are interchangeable.

Main Parameters
Nominal diameter: NPS 1"-6"
Nominal pressure: ANSI 150-300
Valve material: SA216WCB
Connection: Flange
Fluid medium: Neutral Gases, Vapours and Liquids

Model Category


ARI-PREDU ANSI Pressure reducing valve series
1)The pressure regulating valve is a direct acting proportional regulator, self oprated; which regulates a high inlet pressure to asmaller 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 thecontrol line (to protect actuator diaphragm).
Installation in the control line can be seen in the system drawing:


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