Compact, Self-Closing Vacuum Breakers - Normally Closed

Features/Benefits with Proper Installation

  • Designed to protect enclosed tanks from collapse or structural damage during draining.
  • Eliminates siphoning of dangerous fluids.
  • Prevents vacuum which can cause damage to sensitive instruments and filters.
  • Normally closed design prevents fugitive emissions from leaving system.
  • Insurance against replacement of damaged expensive equipment avoids critical system downtime.
  • Patented diaphragm design assures dependable, repetitive, bubble-tight sealing.

For corrosive or ultra-pure liquid applications. Protect against hazards, damage and financial losses caused by vacuum.

Materials Of Construction: Series VBM Vacuum Breakers are molded of type 1, grade 1, PVC (Polyvinyl Chloride), Glassfilled Polypropylene in sizes 1/2", 3/4" and 1" and Kynar/ PVDF in 1/2". A machined version, Series VB is available in PTFE in sizes 3/4" and 1". Diaphragms are of Buna-N, EPDM, or Viton. VBS Vacuum Breakers are available in standard PVC (Polyvinyl Chloride), Natural Polypropylene, and Kynar PVDF in sizes 1 1/2", 2", and 3". Standard dust caps on PVDF models are natural polypropylene; PVDF is optional. Seals are Buna-N, EPDM, or Viton. Threaded connections are standard on all models. Socket end connectors are available on Series VBM models in PVC and all VBS designs.

Design:The Plast-O-Matic VBM Vacuum Breakers have only one moving part - the patented selfsealing diaphragm, and this provides both design simplicity and maximum operating dependability. This normally-closed design seals in the identical location every time producing a very dependable, long-life seal. Series VBS Vacuum Breakers feature a corrosion resistant PTFE PFA encapsulated spring which acts on a poppet seal that neither sticks nor chatters. Maximum working pressure is 100 PSI at 75°F (6.9 bar at 24°C).

 

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Item #

Item Name

Size

Series

End Connections

Max. Pressure at 75 °F

Body Material

Price

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N/A Series VBM & VBS Vacuum Breakers N/A 1/2 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A PVC $106.80 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3/4 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A PVC $125.13 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A PVC $144.46 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1/2 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A Polypropylene $144.24 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3/4 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A Polypropylene $174.60 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A Polypropylene $198.86 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3/4 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A PVDF $309.44 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 inches N/A Series VBM & VB N/A Threaded N/A 100 psi N/A PTFE $460.77 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 1/2 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVC $264.83 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 2 3/4 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVC $341.46 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVC $648.99 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 1/2 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVC $259.98 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 2 3/4 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVC $336.62 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVC $633.46 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 1/2 inches N/A Series VBS N/A Threaded N/A 100 psi N/A Natural Polypropylene $330.80 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 2 3/4 inches N/A Series VBS N/A Threaded N/A 100 psi N/A Natural Polypropylene $402.58 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3 inches N/A Series VBS N/A Threaded N/A 100 psi N/A Natural Polypropylene $771.21 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 1/2 inches N/A Series VBS N/A Threaded N/A 100 psi N/A Natural Polypropylene $325.94 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 2 3/4 inches N/A Series VBS N/A Threaded N/A 100 psi N/A Natural Polypropylene $388.04 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3 inches N/A Series VBS N/A Threaded N/A 100 psi N/A Natural Polypropylene $761.51 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 1/2 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVDF $1,212.59 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 2 3/4 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVDF $1,316.39 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 3 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVDF $4,306.67 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 1 1/2 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVDF $1,202.90 Add To Cart
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N/A Series VBM & VBS Vacuum Breakers N/A 2 3/4 inches N/A Series VBS N/A Threaded N/A 100 psi N/A PVDF $1,309.60 Add To Cart
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