Control Valves

ARI makes a wide range of control valves for isolation or control. Globe valves or 3-way control valves with electric or pneumatic actuators are used for cold/warm/hot water, steam, neutral liquids, gases, thermal fluids, hot oil etc. Pressure nominal 16-40, temperature -10°C up to +450°C according to material.

Products

• STEVI® 470 / 471 – ANSI or DIN with Electric and Pneumatic actuators
• STEVI® 450 / 451 with Electric and Pneumatic actuators
• STEVI® 423/463 with Electric and Pneumatic actuators
• STEVI® 440/441 Straightway Control Valve with Electric and Pneumatic Actuators
• STEVI® 445/446 Straightway Control Valve with Screwed Seatring with Electric and Pneumatic Actuators

Features

• Precision valve stem guiding and a specially designed valve seat achieves a rangeability of 50:1.
• Pressure balanced, soft seating and perforated plugs provide a high degree of flexibility.
• Bellows stem seal, PTFE spring loaded packing or Graphoil stuffing box packing.
• Pneumatic actuators or the new, ARI “PREMIO”, high-capacity electric actuator.
• Linear or equal-percentage flow characteristics.
• Two-way control or three-way control for mixing or diverting service.

Mediums

• Standard: Cooling water, cooling brine, warm water, hot water, steam, gas, etc.
• Bellows Seal: Refrigerant, Cooling water, warm water, hot water, thermal oil, steam, gas, etc.
• ANSI: Steam, condensate, gases with liquid components, etc.