Liquid Drainer | ARI | Philippopoulos s.a.
Liquid Drainer | ARI | Philippopoulos s.a.

Liquid Drainer | ARI

Automatic Drain Valve ARI CONA 665

The ARI CONA 665 is an automatic liquid drain valve designed for the removal of condensate from steam lines during startup and shutdown. Its operation is based on a spring and bimetallic controller; it remains open in a depressurized network and closes when the set differential pressure is reached, factory set at ≥1.5 bar.

Technical Specifications

  • Nominal Diameters: DN15–DN25 / 1/2"–1"
  • Pressure Ratings: PN16 and PN40
  • Body Materials: EN-JL1040 / EN-GJL-250 for PN16, 1.0460 / P250GH for PN40
  • Connections: EN 1092 flanges, Rp or NPT threads, socket weld, butt weld, detachable welded ends
  • Temperature Limits: up to 300°C for PN16 and up to 450°C for PN40, depending on operating pressure
  • Closure Pressure Setting: 0.5–2 bar upon selection

Applications

Used in:

  • steam lines requiring drainage during startup,
  • collectors and low points of piping,
  • industrial boiler rooms,
  • process installations with periodic operation,
  • networks where residual moisture can cause water hammer.

Suitable media: steam condensate and compatible hot liquids. For corrosive or abrasive media, material compatibility checks are required.

Type Selection

Selection is based on:

  • closure pressure,
  • DN and PN,
  • connection type,
  • body material,
  • installation point and available differential pressure.

PN16 covers typical lower pressure applications with cast iron. PN40 with forged steel is chosen for higher pressures and temperatures.

Maintenance and Leakage

Before startup, material, pressure, temperature, and flow direction should be checked. Welding residues or foreign bodies in the seat can lead to internal leakage. Maintenance includes cleaning or replacing the bimetallic controller and checking sealing surfaces.

FAQ

Does it require an external actuator?
No. It is a self-actuating component with mechanical/thermal operation.

Can it be installed horizontally or vertically?
Yes, maintaining the flow direction indicated on the valve body.

Standard (Options)
  • DIN
Connection (Options)
  • BSP
  • NPT
  • Flanged
  • Socket Weld
  • Butt Weld
  • Union butt weld nipples
Material (Options)
  • EN-JL 1040 (GG25) Cast iron
  • 1.0460
Pressure Rating (Options)
  • PN 16

Datasheet and documents

Description

Key Components and Features:

  1. Liquid Drainer (PN16 / PN40):

    • Available with various connection types (flanges, screwed sockets, socket weld ends, and butt weld ends).
    • Materials: Grey cast iron, forged steel.
    • Nominal Diameter: DN15 to DN25 (1/2" to 1").
    • Operating Pressure: PN16 (12.8 barg) and PN40 (32 barg).
    • Temperature Range: Up to 300°C (for PN16) and up to 385°C (for PN40).
    • Function: Automatic condensate discharge during start-up and shutdown with adjustable closing pressures (1.5 bar factory setting).

  2. Condensate Discharge Temperature Limiter (PN40):

    • Material: Forged steel.
    • Temperature Range: Can handle up to 450°C.
    • Applications: Used for systems requiring specific condensate discharge temperatures, with the possibility of adjusting the closing temperature.

  3. Return Temperature Limiter (PN40):

    • Material: Forged steel.
    • Function: Optimizes energy consumption by limiting the return temperature in heating systems to a lower level.
    • Temperature Range: Closing temperature can be set from 60°C to 130°C.
    • Features: Equipped with a corrosion- and waterhammer-resistant bimetallic controller.

  4. Automatic Air Vent for Liquid Systems (PN16 / PN25 / PN40):

    • Materials: SG iron, cast steel, stainless steel.
    • Applications: Automatically vents air from liquid systems to ensure proper system pressure.
    • Pressure and Temperature: Can handle up to 21 barg and 400°C.

  5. Vacuum Breaker (PN16 / PN40):

    • Material: Stainless steel.
    • Function: Prevents a vacuum from forming in pipelines, thus protecting the system from potential damage.
    • Pressure Range: Operates under pressures up to 21 barg.


General Features:

  • Capacity Charts: The document includes performance charts for each component, showing flow rates and pressure limits based on the differential pressure and temperature conditions.
  • Installation: These components can be installed in various configurations (vertical, horizontal) with different connection types, offering flexibility for various applications.


Customizable Options:

  • Blowdown Valve: Can be added for easier cleaning and maintenance.
  • Thermometer Inserts: Optional thermometer can be included for monitoring temperatures.
  • External Adjustment Devices: Some models offer this feature for fine-tuning settings.


These components are designed for efficient condensate management, temperature control, and system protection, suitable for HVAC, steam systems, and industrial heating applications.

Tests and Certificates

eClass-No.: 37019090
Application: For automatic condensate-discharge during start-up and operation
Medium: Steam, condensate, etc.