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A leading provider of products and services across offshore & shipbuilding and petrochemical industries.

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ARI-STEVI Vario 448/449 New variable control valve with screwed seat ring
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ARI-STEVI Vario 448/449 New variable control valve with screwed seat ring



•Compact design

•Bonnet with rotable traverse

•Optional: Perforated plug for noise reduction

•Replaceable seat

•Reduceable Kvs-values

•Shaft plug guide

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Description



•Compact design

•Bonnet with rotable traverse

•Optional: Perforated plug for noise reduction

•Replaceable seat

•Reduceable Kvs-values

•Shaft plug guide

ARI-STEVI Vario 448/449 is the new variable compact control valve in straightway form with screwed seat ring, uses a variable actuator design and is incredibly flexible thanks to the changeable, variable trim. It is precise and durable because vibration is prevented even at high differential pressures. The extended service life is a further advantage. It is available with electric and pneumatic actuators.

The Vario 448/449 extends the existing STEVI range consisting of  STEVI Smart(Series 440/441) - the classic standard valve for universal applications - and STEVI Pro (Series 470/471) - the high performance control valve for critical applications. 

Main Parameters
Plug design: Parabolic plug / perforated plug
Nominal diameter: DN15-100
Nominal pressure: PN16-40
Valve material: EN-JL1040, EN-JS1049, 1.0619 + N, 1.4408
Fluid medium: Brine, Warm water,Hot water, Refrigerants, Steam, Gas, etc.
Actuator selection: Electric, Pneumatic

Model Category


ARI-STEVI Vario 448/449  New variable control valve with screwed seat ring
1)Flexible & Easy Handling
Changeable, variable trim (at least 4 Kvs values as well as multiple flow characteristics and plug designs)
Provide optimum handing: upper part can be rotated 360°, with small footprint and reduced weight(low height)
2)Durable and Long life
Vibration is prevented even at high differential pressures (stable shaft guiding)
Stem seals already proven millions of times over, service life now further extended (PTFE V-ring sealing units and EPDM linings)
3)Economical
Very low air consumption (smaller pneumatic actuators on request)

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