Vacuum breaker VBS21 1/2" is designed for steam systems and industrial process applications where vacuum formation must be controlled and condensate drainage supported. When a vacuum develops, the valve allows air to enter the system, helping protect pipework, heat exchangers and vessels from potential vacuum damage. Stainless steel construction, featuring a 1.4305 body and an AISI 440 C valve ball, provides a robust solution for industrial service. The 1/2" BSP female system connection and separate 1/8" BSP female air inlet allow integration into suitable installations. Operating limits must be observed in accordance with the datasheet.
*Successor model to the VB14 and VB21
Air inlet connection:1/8" BSP T Rp (ISO 7-1)
Connection :Female thread
Body:Stainless Steel
Material ball :Stainless steel AISI 440 C
Temperature range :max. 400°C @ 13 bar (see Datasheet)
Availability:In Stock
Tender
Vacuum breaker VBS21 - 1/2" • System connection: 1/2" BSP T Rp (ISO 7-1) • Air inlet connection: 1/8" BSP T Rp (ISO 7-1) • Body/Cap: stainless steel AISI 303 • Ball: stainless steel AISI 440 C • Max. operating pressure for saturated steam service: 21 bar g • Maximum operating temperature: 400°C @ 13 bar g • Opening pressure Δp = 4,6 mm Hg • Capacity + Pressure/temperature limits: see datasheet
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