VB21 – VB21M

Vacuum breakers for automatic vacuum relief in steam heated equipment.

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VB21 – VB21M Product Description

The ADCA VB21 vacuum breakers are simple and reliable devices that automatically relieve or “break” an unwanted vacuum condition, restoring the atmospheric pressure. These devices are particularly suitable for steam heated units of small and medium volume, such as heat exchangers, heating coils, calorifiers, jacketed kettles, steam boilers, etc.

Technical Specifications

Characteristic
Material
Sizes
Connections
Limiting conditions
Value
Stainless steel
1/2” x 1/8”
VB21 – Female threaded ISO 7 Rp or NPT; VB21M – Male threaded ISO 228
13 bar at 400 ºC; 21 bar at 220 ºC
MaterialStainless steel
Sizes1/2” x 1/8”
ConnectionsVB21 – Female threaded ISO 7 Rp or NPT; VB21M – Male threaded ISO 228
Limiting conditions13 bar at 400 ºC; 21 bar at 220 ºC

Applicable Industries