Valmatic VM-1800AVB-S Vacuum Breaker Valve -Val-Matic Valve & Mfg. Corp. | Linquip

Valmatic VM-1800AVB-S Vacuum Breaker Valve

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For critical applications where vacuum protection is a must or where column separation is predicated, a vacuum breaker valve is used. The Vacuum Breaker is mounted at critical pipeline high points, penstocks, or tanks and allows for rapid inflow of atmospheric air to reduce vacuum conditions in piping systems. Learn more about our vacuum breaker valve products below.
  • Cushions surges related to column separation

  • Opens in response to a 0.25 psi vacuum

  • Manufactured under a certified ISO 9001 quality system

  • Automated Sizing Program

  • Full flow areas provide maximum vacuum protection for pipelines and tanks

Valmatic VM-1800AVB-S Vacuum Breaker Valve Specifications:

  • Max. working pressure (bar)

    27.60
  • DN from

    15
  • DN to

    1050
  • Class from

    150
  • Class to

    250
  • NPS from

    0.5
  • NPS to

    42
  • Certifications

    NSF/ANSI 61, ISO 9001
  • Pressure Class

    ANSI
  • Connection Type

    Flanged
  • Flange Standard (Drilling)
    ANSI B16.1
  • Body Material
    ASTM A126 Class B cast iron, ASTM A536 Grade 65-45-12 ductile iron, ASTM A216 Grade WCB cast steel, ASTM A536 Grade 65-45-12 ductile iron, ASTM A351 Grade CF8M stainless steel, and ASTM B584 Alloy 836 cast bronze.
  • Other parts' material
    seat and plug: ASTM B584 Alloy C87600 cast bronze or ASTM B148 Alloy C95200 aluminum bronze l compression spring: ASTM A313 Type 316 stainless steel l trim material: ASTM A351 Grade CF8M stainless steel
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