List of products by brand Ari-Armaturen

  • ARI-Armaturen – Technical profile of a steam, control valve and industrial valve manufacturer

    ARI-Armaturen is a German manufacturer of valves and equipment for steam, condensate, thermal oil, hot water, cooling water, HVAC and industrial process systems. Its product range covers isolation valves, control valves, pressure reducing valves, safety valves, steam traps, strainers, check valves and condensate handling equipment.

    The main product areas include:

    • globe stop valves,
    • bellow seal valves,
    • control valves,
    • pressure reducing valves,
    • safety valves,
    • steam traps,
    • check valves,
    • strainers,
    • condensate pumps,
    • heat transfer and steam system components.

    ARI globe valves are used for isolation and throttling in steam, water and thermal fluid systems. Bellow seal valves are selected where stem leakage must be reduced, especially in steam, thermal oil or media where fugitive emissions are a concern.

    ARI control valves are used for modulating control of temperature, pressure, flow and level. Selection requires Kv calculation, pressure drop, medium, temperature, leakage class, actuator force, fail position and possible checks for cavitation, flashing or noise.

    Steam traps and condensate equipment are part of the steam balance. They must be selected according to condensate load, differential pressure, back pressure, start-up load, air venting and system layout.

    Pressure reducing and safety valves have different functions. A pressure reducing valve controls downstream pressure. A safety valve protects equipment from overpressure and must be sized according to the relief scenario.

    ARI products are relevant for steam specialists, HVAC engineers, process engineers and maintenance departments working with steam, condensate and industrial utilities. Selection must be based on actual operating conditions, not only nominal diameter.

CONA connector | ARI - Ari-Armaturen

CONA connector | ARI

CONA connector | ARI
Ari-Armaturen
ARI CONA Connector – Steam Trap Adapter The ARI CONA Connector is a fixed piping adapter designed for quick installation and replacement of CONA Universal units. It is not a standalone steam trap; rather, it serves as the connection body for attaching thermostatic, bimetallic, float, or thermodynamic steam trap units. Versions 681: Basic system...
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Monitoring system for steam traps - Cona Control | ARI - Ari-Armaturen

Monitoring system for steam traps - Cona Control | ARI

Monitoring system for steam traps - Cona Control | ARI
Ari-Armaturen
CONA-control ARI – Steam Trap Monitoring The CONA-control system is utilized for continuous monitoring of steam traps in steam and condensate return networks. It identifies two primary failures: steam leakage through the trap and blockage due to cold condensate accumulation. Measurement is conducted using a temperature/calorimetric sensor in a control...
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Condensate discharge temperature limiter | ARI - Ari-Armaturen

Condensate discharge temperature limiter | ARI

Condensate discharge temperature limiter | ARI
Ari-Armaturen
Condensate Discharge with Temperature Limiter ARI CONA 645/647 The ARI CONA 645 and 647 are thermostatic steam traps PN40 designed for condensate discharge at controlled temperatures, preventing secondary steam release at the drainage point. Operating temperature is adjustable between 60–140°C, controlled by a corrosion-resistant bimetallic element,...
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Condensate pump - CONALIFT | ARI - Ari-Armaturen

Condensate pump - CONALIFT | ARI

Condensate pump - CONALIFT | ARI
Ari-Armaturen
ARI-CONLIFT® Condensate Pump The ARI-CONLIFT® is a mechanical positive displacement condensate pump, operating via a float mechanism. It requires no electrical power; pumping is achieved using steam, compressed air, or inert gas as the driving medium. It is used for transferring condensate from a lower level or pressure to a return network with higher...
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Control 3-way valve STEVI Smart - 423/463 | ARI - Ari-Armaturen

Control 3-way valve STEVI Smart - 423/463 | ARI

Control 3-way valve STEVI Smart - 423/463 | ARI
Ari-Armaturen
ARI STEVI Smart 423/463 – Three-Way Control Valve for Large DN The ARI STEVI Smart 423/463 is a flanged three-way control valve designed for mixing or flow diverting in large diameter networks. The series covers DN200–DN300, with the 463 available in DN200–DN250, and versions PN16, PN25, and PN40 in EN-JL1040, EN-JS1049, or 1.0619+N, depending on diameter...
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Control 3-way valve STEVI Smart - 450/451 | ARI - Ari-Armaturen

Control 3-way valve STEVI Smart - 450/451 | ARI

Control 3-way valve STEVI Smart - 450/451 | ARI
Ari-Armaturen
ARI STEVI Smart 450/451 – Three-Way Control Valve The ARI STEVI Smart 450/451 is a three-way control valve designed for analog regulation in mixing or flow diverting operations. It covers DN15–DN150, PN16/PN25/PN40, with bodies made of EN-JL1040, EN-JS1049, 1.0619+N, or 1.4408. The connection is flanged, with face-to-face dimensions according to DIN EN...
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Control valve STEVI H - 485/488 | ARI - Ari-Armaturen

Control valve STEVI H - 485/488 | ARI

Control valve STEVI H - 485/488 | ARI
Ari-Armaturen
ARI STEVI H 485/488 – HVAC Control Valve The ARI STEVI H 485/488 is a control valve designed for heating, ventilation, and air conditioning circuits, applicable in regulating heating or cooling water flow. The H series includes three-way and two-way configurations, equipped with electric actuators for analog or three-point control. Type Differences Fig....
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Control valve STEVI Pro - 422/462 | ARI - Ari-Armaturen

Control valve STEVI Pro - 422/462 | ARI

Control valve STEVI Pro - 422/462 | ARI
Ari-Armaturen
ARI STEVI Pro 422/462 – Control Valve for Large DN The ARI STEVI Pro 422/462 is a straight-through control valve designed for analog regulation of flow, pressure, or temperature in DN200–DN250 lines. It features a threaded seat ring and a double-guided plug. Available in PN16 with EN-JL1040 or EN-JS1049 and in PN25/PN40 with 1.0619+N. Versions 422 and 462...
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Control valve STEVI Pro - 470/471 | ARI - Ari-Armaturen

Control valve STEVI Pro - 470/471 | ARI

Control valve STEVI Pro - 470/471 | ARI
Ari-Armaturen
ARI STEVI Pro 470/471 – Control Valve The ARI STEVI Pro 470/471 is a linear control valve designed for industrial supply circuits, pressure, or temperature control. It features a threaded seat ring, guided plug, and blowout-proof stem. Available in sizes DN15–DN150, pressure classes PN16–PN40, with bodies made from EN-JS1049, 1.0619+N, or 1.4581, and...
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Control valve STEVI Pro - 470/471 ANSI | ARI - Ari-Armaturen

Control valve STEVI Pro - 470/471 ANSI | ARI

Control valve STEVI Pro - 470/471 ANSI | ARI
Ari-Armaturen
ARI STEVI Pro 470/471 ANSI – Control Valve for Industrial Processes The ARI STEVI Pro 470/471 ANSI is a linear flow control valve designed for industrial regulation of flow, pressure, or temperature. The series covers DN25–DN200 / NPS 1"–8" with ANSI 150 or ANSI 300 flanges, while butt weld versions are available in DN25–DN150 / NPS 1"–6". Standard bodies...
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Control valve STEVI Smart - 425/426 | ARI - Ari-Armaturen

Control valve STEVI Smart - 425/426 | ARI

Control valve STEVI Smart - 425/426 | ARI
Ari-Armaturen
ARI STEVI Smart 425/426 – Control Valve DN300–DN500 The ARI STEVI Smart 425/426 is a linear control valve designed for high flow rates in water, steam, gas, and thermal fluid networks. The series covers DN300–DN500, with PN16 in EN-JS1049 for DN300 and PN25/PN40 in 1.0619+N for DN300–DN500. Final selection should consider medium, temperature, pressure,...
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Control valve STEVI Vario - 448/449 | ARI - Ari-Armaturen

Control valve STEVI Vario - 448/449 | ARI

Control valve STEVI Vario - 448/449 | ARI
Ari-Armaturen
ARI STEVI Vario 448/449 – Process Control Valve The ARI STEVI Vario 448/449 is a linear flow control valve with flanged connections and a threaded seat ring. It covers DN15–DN100 and is available in PN16, PN25, and PN40 versions, with bodies made from EN-JL1040, EN-JS1049, 1.0619+N, or stainless steel 1.4408. Variants 448 and 449 STEVI 448: Standard...
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Control valve STEVI Smart - 440/441 | ARI - Ari-Armaturen

Control valve STEVI Smart - 440/441 | ARI

Control valve STEVI Smart - 440/441 | ARI
Ari-Armaturen
ARI STEVI Smart 440/441 – Analog Control Valve The ARI STEVI 440/441 is a straight-through control valve designed for continuous regulation of flow, pressure, or temperature in industrial circuits. Available in DN15–DN250, with flanged DIN connections and bodies made from EN-JL1040, EN-JS1049, 1.0619+N, or stainless steel 1.4408, with pressure classes...
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Condensate Recovery and Return Station - CORsys St | ARI - Ari-Armaturen

Condensate Recovery and Return Station - CORsys St | ARI

Condensate Recovery and Return Station - CORsys St | ARI
Ari-Armaturen
ARI-CORsys®-St – Condensate Recovery and Return Station The ARI-CORsys®-St is a pre-assembled condensate return station for steam networks. Condensate is collected in an open receiving tank and pumped back to the boiler system, reducing the need for new feedwater and thermal replenishment. Available tank volume ranges from 150 to 2000 L. Operating...
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Double window sight glass | ARI - Ari-Armaturen

Double window sight glass | ARI

Double window sight glass | ARI
Ari-Armaturen
ARI BR660 Dual-Sided Flow Indicator The ARI BR660 is a flow indicator featuring two borosilicate glass observation windows for visual flow inspection in pipelines. It has no moving parts and is primarily used for monitoring condensate, steam, and process liquids before steam traps or in lines requiring local flow indication. Technical Specifications...
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Electric actuator - PACO | ARI - Ari-Armaturen

Electric actuator - PACO | ARI

Electric actuator - PACO | ARI
Ari-Armaturen
Electric Linear Actuator ARI-PACO 0.85 D/Y The ARI-PACO 0.85 kN is an electric thrust actuator designed for small linear control or shut-off valves, with a nominal force of 0.85 kN and a maximum stroke of 20 mm. It is primarily used in HVAC valves, hot/cold water circuits, and auxiliary process loops where limited seating force and short actuator travel...
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Electric actuator - PREMIO | ARI - Ari-Armaturen

Electric actuator - PREMIO | ARI

Electric actuator - PREMIO | ARI
Ari-Armaturen
ARI-PREMIO Electric Linear Actuator The ARI-PREMIO is an electric thrust actuator designed for linear control and shut-off valves. It is used in process applications where a PLC, temperature controller, or BMS provides a 3-point command or an analog signal via a position controller. Core Variants 2.2 kN / 5 kN: Stroke up to 50 mm; speeds 0.38 mm/s or...
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Electric actuator - PREMIO-Plus 2G | ARI - Ari-Armaturen

Electric actuator - PREMIO-Plus 2G | ARI

Electric actuator - PREMIO-Plus 2G | ARI
Ari-Armaturen
Electric Linear Actuator ARI-PREMIO-Plus 2G The ARI-PREMIO-Plus 2G is an electric thrust actuator designed for linear control valves. It is used for regulating flow, pressure, or temperature via 3-point, 0–10 V, or 4–20 mA signals. Features include a BLDC motor, automatic valve stroke adaptation, and non-contact position detection. Versions and Technical...
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Excess pressure regulator / back pressure sustaining valve - PREDEX | ARI - Ari-Armaturen

Excess pressure regulator / back pressure sustaining valve - PREDEX | ARI

Excess pressure regulator / back pressure sustaining valve - PREDEX | ARI
Ari-Armaturen
ARI-PREDEX® – Inlet Pressure Retaining Valve The ARI-PREDEX® is a self-acting, straight-through pressure relief valve designed for upstream pressure regulation. It opens when the inlet pressure exceeds the set value and closes when the pressure falls below the set point, operating without auxiliary energy. Technical Specifications DN 15–150 PN 16,...
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Float & thermostatic steam trap - CONA SC / SC Plus | ARI - Ari-Armaturen

Float & thermostatic steam trap - CONA SC / SC Plus | ARI

Float & thermostatic steam trap - CONA SC / SC Plus | ARI
Ari-Armaturen
ARI CONA SC / SC Plus Float Steam Trap The ARI CONA SC is a float steam trap equipped with a thermostatic air vent capsule, designed for condensate removal from saturated steam networks, heat exchangers, heating elements, low/medium pressure steam boilers, and distribution lines. Discharge occurs immediately based on condensate level without requiring...
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Float & thermostatic steam trap - CONA S | ARI - Ari-Armaturen

Float & thermostatic steam trap - CONA S | ARI

Float & thermostatic steam trap - CONA S | ARI
Ari-Armaturen
ARI CONA S Float Steam Trap The ARI CONA S is a mechanical float steam trap designed for continuous condensate removal from industrial steam networks. The float regulates condensate levels, while the integrated bimetallic element opens during startup to remove air and non-condensable gases; control is transferred to the float mechanism above 90 °C....
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Float operated pump trap - CONA P | ARI - Ari-Armaturen

Float operated pump trap - CONA P | ARI

Float operated pump trap - CONA P | ARI
Ari-Armaturen
ARI CONA P – Float Steam Trap with Pump Functionality The ARI CONA P is a PN16 float steam trap with integrated mechanical condensate pump functionality. It is used in heat exchangers and closed vessels where differential pressure is not consistently positive, such as in low steam pressure operations, variable loads, or vacuum conditions. When the inlet...
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Flow regulating manual valve - ASTRA | ARI - Ari-Armaturen

Flow regulating manual valve - ASTRA | ARI

Flow regulating manual valve - ASTRA | ARI
Ari-Armaturen
ARI-ASTRA® Flow Control Valve The ARI-ASTRA® is a manually operated balancing/control valve for flow regulation, featuring a straight-through design with flanged connections PN16 according to DIN EN 1092-2. It is utilized in heating, cooling, and industrial water circuits where flow presetting, Δp measurement, and isolation capability are required....
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Flow regulating manual valve - ASTRA PLUS | ARI - Ari-Armaturen

Flow regulating manual valve - ASTRA PLUS | ARI

Flow regulating manual valve - ASTRA PLUS | ARI
Ari-Armaturen
ARI-ASTRA®Plus 042 Flow Control Valve Manual straight-through valve, flanged, designed for flow regulation and presetting in industrial water, steam, condensate, thermal circuits, and HVAC networks. The body is made of ductile iron EN-JS1049 / EN-GJS-400-18U-LT, rated at PN16, with length according to DIN EN 558 series 1 and flanges according to DIN EN...
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