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Home → Catalogue → Pipeline ancillaries → Vacuum Breaker ADCA VB17
Valsteam ADCA
Vacuum Breaker ADCA VB17

Specifications

  • Application

    Saturated and superheated steam,
    Gases compatible with the construction

  • Body material

    Stainless steel AISI 316L

  • Air flow

    Up to 220 m³/h

  • Max. operating pressure

    16 bar at 120 ºC,
    9 bar (steam system)

  • Max. operating temperature

    200 ºC at 12 bar

  • Min. operating temperature

    -60 ºC

  • Valve seals

    EPDM – Tmin -40 ºC / Tmax 150 ºC,
    PTFE – Tmin -60 ºC / Tmax 180 ºC,
    FPM / Viton – Tmin -10 ºC / Tmax 200 ºC

  • Regulating range

    -0,05 to -0,95 bar

  • Connections

    Male threaded ISO 228,
    Male threaded NPT ASME B1.20.1, on request,
    Flanged EN 1092-1 PN40 (threaded flange), on request,
    Flanged ASME B16.5 Class 150 (threaded flange), on request.

Vacuum Breaker ADCA VB17

Product code: VB17X8VXXXB

Available on request

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Vacuum Relief Valve / Vacuum Breaker ADCA VB17

The VB17 is a series of vacuum breakers designed to automatically relieve or “break” an unwanted vacuum condition. Applications include venting and vacuum limiting in pipelines, vessels, heat exchangers, autoclaves, steam boilers and other machines. These valves should not be used as vacuum control valves.
The device is kept close by means of a spring-loaded valve and the pressure which acts on the underside of the plug. When pressure drops below the adjusted set pressure, unbalancing of forces causes the valve to open, allowing atmospheric air to enter the system. With raise in differential pressure results an increase in valve stroke and air flow.
The units are available with an optional lift indicator to signal in case of opening, for monitoring or contamination detection purposes.

MAIN FEATURES

Metallic wetted parts machined from 316L stainless steel bar stock.

Regulating ranges from -0,05 to -0,95 bar.

Compact design with easy access for cleaning and inspection.

OPTIONS

Lift indicator.

Different soft sealings for vapours and gases.

Degreasing.

Other construction materials.

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