Control Valves

Analog control valves are used for continuous regulation of flow, pressure, level, or temperature in steam, water, gas, and process fluid systems. The category includes two-way and three-way control valves, mixing and diverting configurations, single-seated, cage-guided, V-notch segmental, angle-pattern, bellows-sealed, cryogenic-service, gas control, turbine bypass, desuperheating, and pneumatically actuated 3-A mix-proof valve arrangements.

Valve selection is based on required Cv/Kv, differential pressure, control characteristic, risk of cavitation or flashing, material compatibility with the process medium, and shutoff requirements at both seat and stem. Available versions include DIN and ANSI designs, with pressure ratings from PN 6 to PN 40 and ASME Class 150/300, in flanged, butt-weld, or threaded end connections. Typical body materials include GG25, GGG40.3, 1.0619, 1.4408, 1.4581, and SA216 WCB.

For automated process control, these valves can be combined with pneumatic or electric actuators and positioners for integration into PID control loops via PLC or DCS signals. In steam systems, heat exchangers, HVAC installations, power generation, food processing, and chemical service, technical evaluation should include packing maintenance, external stem leakage, internal leakage class to IEC/ANSI, aerodynamic or hydrodynamic noise, thermal stress, and control stability under part-load operation.

Control valve STEVI Smart - 440/441 | ARI

Control valve STEVI Smart - 440/441 | ARI
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...

Control valve STEVI Vario - 448/449 | ARI

Control valve STEVI Vario - 448/449 | ARI
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...

Control valve STEVI Pro - 470/471 | ARI

Control valve STEVI Pro - 470/471 | ARI
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...

Control valve STEVI Pro - 470/471 ANSI | ARI

Control valve STEVI Pro - 470/471 ANSI | ARI
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...

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

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

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

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

Control valve STEVI Pro - 422/462 | ARI

Control valve STEVI Pro - 422/462 | ARI
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...

Control valve STEVI Smart - 425/426 | ARI

Control valve STEVI Smart - 425/426 | ARI
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,...

Control valve STEVI H - 485/488 | ARI

Control valve STEVI H - 485/488 | ARI
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....

Control Valve - GVCH | Bellino

Control Valve - GVCH | Bellino
Bellino GVCH – Globe Control Valve with Cage Trim The Bellino GVCH is a globe-type control valve featuring a cage-guided trim, designed for flow, pressure, or level control in liquid and gas circuits. The cage trim philosophy is suitable when enhanced plug guidance and stable throttling service behavior are required compared to a simple contoured plug....

Control Valve - GVLN | Bellino

Control Valve - GVLN | Bellino
Bellino GVLN – Globe Control Valve Low-Noise Trim The Bellino GVLN is a globe-type control valve designed for applications where pressure drop results in increased noise, high velocity, or significant expansion in the trim. This model is part of the Globe Valve Low Noise series and serves as a final control element in flow, pressure, level, or...

Control Valve - GVPC | Bellino

Control Valve - GVPC | Bellino
Bellino GVPC – Analog Globe Control Valve The Bellino GVPC is a globe valve with contoured trim, designed for automatic control of liquid, gas, or steam flow in industrial installations. It functions as a final control element in pressure, level, temperature, or flow loops, where pressure drop is achieved through throttling at the trim. GVPC...

Control Valve - SRVE | Bellino

Control Valve - SRVE | Bellino
Bellino SRVE – Self-Regulating Valve with External Pressure Tapping The Bellino SRVE is a self-regulating control valve featuring external tapping. Line pressure is conveyed via external piping to the actuator, acting on one side of the diaphragm, while the reference/set pressure is applied to the other side. No PLC or positioner is required for basic...

Control Valve - SRVI | Bellino

Control Valve - SRVI | Bellino
Bellino SRVI – Self-Regulating Valve with Internal Tapping The Bellino SRVI is a self-regulating pressure valve featuring internal pressure tapping. It functions as a pressure reducer for downstream pressure control or as a relief/back-pressure valve for upstream pressure management, without the need for an external positioner or control signal. The...

Control Valve 3 way | Bellino

Control Valve 3 way | Bellino
Bellino 3-Way – Three-Way Control Valve The Bellino 3-Way is a three-way control valve designed for automatic flow distribution control in industrial liquid, gas, or steam circuits. It serves as a final control element in temperature, pressure, or flow loops, where the process requires mixing two streams or distributing a single flow into two branches....

Control Valve bellow-seal | Bellino

Control Valve bellow-seal | Bellino
Bellino Bellow Seal – Analog Globe Valve The Bellino Bellow Seal is a globe-type control valve designed for applications where shaft sealing leakage must not rely solely on packing. The metallic bellows isolate the shaft from the medium, suitable for flow, pressure, level, or temperature control loops in liquids and gases. Trim and Materials The bellow...

Control Valve angle type | Bellino

Control Valve angle type | Bellino
Bellino Angle Type – Angular Control Valve The Bellino Angle Type is an angular control valve designed for automatic regulation of liquid or gas flow, particularly when a 90° directional change and throttling are required within the same valve body. It serves as the final control element in pressure, level, flow, or temperature loops. Construction and...

Power Generation - HP Turbine Bypass Valve | Bellino

Power Generation - HP Turbine Bypass Valve | Bellino
Bellino HP Turbine Bypass Valve – High-Pressure Turbine Bypass Valve The Bellino HP Turbine Bypass Valve is utilized in power generation facilities to bypass the high-pressure turbine. It directs high-pressure, high-temperature steam from the main steam line to the cold reheat line, simultaneously performing pressure reduction and temperature control....

Power Generation - Desuperheater | Bellino

Power Generation - Desuperheater | Bellino
Bellino BPD Probe Desuperheater – Steam Desuperheater The Bellino BPD is a probe-type desuperheater designed for cooling superheated steam through the injection of atomized water. It is utilized in applications requiring small to medium spray water flows without simultaneous pressure reduction in the same equipment. Water flow is controlled by a separate...

Gas Control Valves type C1 | Valfonta

Gas Control Valves type C1 | Valfonta
Valfonta C1 – Pneumatic Gas Control Valve The Valfonta C1 is a globe-type, top-entry, single-seat pneumatic valve designed for analog control or on/off operation in gases, steam, and process liquids. It is utilized in flow or pressure control loops with a pneumatic multi-spring actuator for direct or reverse action. Dimensions and Connection The standard...

Pneumatics 3-A Mix proof Valves | Tassalini

Pneumatics 3-A Mix proof Valves | Tassalini
Tassalini 3-A Mix Proof – Pneumatically Controlled Hygienic Valve The pneumatic Tassalini 3-A Mix Proof valves are utilized in food, beverage, and pharmaceutical lines where two flows must remain hydraulically separated during production or CIP. The operational principle is based on a drainage arrangement: potential leakage is directed outside the valve,...

Control Valve single-seated | Neway

Control Valve single-seated | Neway
Neway CSS – Single-Seated Control Valve The Neway CSS is a globe body control valve with a single-seated plug, designed for straight-travel flow control in liquids, gases, and steam. It serves as a final control element in pressure, flow, level, or temperature loops, primarily used in petroleum, chemical, metallurgy, LNG, shipbuilding, power, and building...

Control Valve bellow seal Single-seated | Neway

Control Valve bellow seal Single-seated | Neway
Neway CBS – Single-Seated Control Valve with Bellows The Neway CBS is a globe-type control valve featuring a single-seated plug and a metal bellows to minimize external leakage from the stem. It is designed for straight-travel control of flow, pressure, level, or temperature in applications where packing is insufficient as the primary sealing barrier....

Control Valve cage-guided | Neway

Control Valve cage-guided | Neway
Neway CSC – Cage-Guided Control Valve The Neway CSC is a globe-type control valve featuring a cage-guided balanced trim, designed for linear flow control in liquids, gases, and steam. Cage guidance is utilized for stable plug movement, improved performance at higher Δp, and reduced lateral forces on the stem. Construction Range The series covers...