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Home >> Control Valve >> Actuated Control Valve >> Straight Through Control Valve >> ARI-STEVI 445/446 Straight through threaded seat control valve
  • ARI-STEVI 445/446 Straight through threaded seat control valve
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  • ARI-STEVI 445/446 Straight through threaded seat control valve



    •    Temperature -60°C up to 400°C

    •Parabolic plug, precision guided stem

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

    •Burnished stem

    •Threaded seat

    •Spring loaded PTFE-V-ring unit

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Description



•Temperature -60°C up to 400°C

•Parabolic plug, precision guided stem

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

•Burnished stem

•Threaded seat

•Spring loaded PTFE-V-ring unit

ARI-STEVI 445/446 Straight through threaded seat control valve is for variable control systems of industrial applications , available with -E(electric) or -DP(pneumatic) actuators, steam seal can be flexibly selected. A straight through type regulator/control valve with the option of independently replacing the threaded seat and stem design based on flexibility considerations

Main Parameters
Nominal diameter: DN15-150/DN200-250
Nominal pressure: PN40
Valve material: 1.4408
Fluid medium: Cold water,Sea water, Warm water, Hot water,Hot oil,Steam, Gas, Refrigerant, Alkali, Acid, Deionized water, Pure steam, etc
Actuator selection: Electric, Pneumatic

Model Category


ARI-STEVI 445/446 Straight through threaded seat control valve
1）Economy and flexibility
Compact design with a threaded option for individual seat replacement and individual valve head replacement based on flexibility considerations reduces KVS. Stem seal can be flexibly selected PTFE v-ring, PTFE seal, graphite seal, stainless steel bellows seal, etc
2）Durability
The precision guide of valve stem can greatly extend the service life of equipment and reduce the cost of replacement and maintenance.
With a 50:1/30:1 adjustment ratio, performance is superior.
3）Security
The sealing ring is pressed by spring to seal the equipment tightly, so as to achieve the safe operation effect without leakage. The level of leakage is up to IV~VI
Double corrugated pipe design is also optional

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  • ARI-STEVI 405/460 Straight through flange connection control valve with electric/pneumatic actuator



    –    Precision guided stem

    –Burnished stem

    –Spring loaded PTFE-V-ring unit

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

    –Electric and pneumatic actuators

    –Optional - stainless steel bellows seal

    ARI-STEVI 405/460 Configurable actuator

    –Pneumatic actuator ARI-DP 32-35

    –Electric actuator ARI-PREMIO 2,2-25KN/ARI-PREMIO-Plus 2G 2,2-25KN

    –Electric actuator AUMA SA 07.2-16.2


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  • ARI-STEVI 472 High-performance and variable control valve-up to PN160



    •    Straight through

    •Temperature -10°C - 450°C

    •Parabolic plug

    •To close 5 reducible kvs-values

    •Post guided plug

    •Rangeability 25:1

    •Burnished stem

    •Replaceable seat and plug

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  • ARI-STEVI Smart 440/441 Control valve with electric/pneumatic actuator



    Ÿ    Straight through

    ŸParabolic plug, precision guided stem

    ŸRangeability 50:1

    ŸBurnished stem

    ŸSpring loaded PTFE-V-ring unit

    ARI-STEVI 440/441 Configurable actuator
    ŸPneumatic actuator ARI-DP 32-34 Tri
    ŸElectric actuator ARI-PREMIO 2,2-25KN/ARI-PREMIO-Plus 2G 2,2-25KN
    ŸElectric actuator with fail-safe function FR2.1-2.2
    ŸElectric actuator AUMA SAR 07.2-10.2
    ARI-STEVI 440
    ŸElectric actuator with fail-safe function FR1.2

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  • ARI-STEVI Bellows seal stem straight through/three way control valve



    •    Straight through

    •Parabolic plug, precision guided stem

    •High strength body design for high load conditions

    •Long stroke design

    •Burnished stem

    •Kvs-values reducible up to 5 times

    •Spring loaded PTFE-V-ring unit

    •Replaceableseat and plug

    •With electric and pneumatic actuators

    •Optional- stainlesssteel bellows seal 

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TEL : 0086-411-39977558

EMAIL : INFO@valve.ltd

LINK : www.valve.ltd​

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