The T205VB Series vacuum breakers are used for precise control of small capacity, low-pressure service applications where an increase in vacuum must be limited.
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Fisher™ T205VB Series Vacuum Breakers

Specs

Body Sizes
NPS 3/4 / DN 20
NPS 1 / DN 25
Maximum Operating Inlet Pressure
150 psig / 10.3 bar
Maximum Outlet (Casing) Pressure
Gray Cast Iron: 35 psig / 2.41 bar
WCC Carbon Steel, LCC Carbon Steel or CF8M/CF3M Stainless Steel: 75 psig / 5.17 bar
Maximum Outlet (Casing) Pressure
Gray Cast Iron: 35 psig / 2.41 bar
WCC Carbon Steel, LCC Carbon Steel or CF8M/CF3M Stainless Steel: 75 psig / 5.17 bar
Temperature Capabilities
Nitrile (NBR)
Gray Cast Iron or WCC Carbon Steel Body: -20 to 180°F / -29 to 82°C
LCC Carbon Steel or CF8M/CF3M Stainless Steel Body: -40 to 180°F / -40 to 82°C

Flourocarbon (FKM): 40 to 300°F / 4 to 149°C
Spring Case Connection
1/4 NPT
Diaphragm Case Connection
1/2 NPT
Approximate Weight
18.7 pounds / 8.5 kg
Additional Technical Data
For additional technical information, contact your local Sales Office or refer to technical documentation.

Features

  • Common spare parts with other T205 Series products
  • Tamper-resistant adjustment
  • Easy conversion
  • Precision control of low-pressure settings
  • Corrosion resistance

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