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Spirax Sarco Vacuum Breakers

VB14

VB14 Spirax Sarco Vacuum Breakers

The VB14 is a small purpose designed vacuum breaker for general purpose applications on condensing vapour (steam) or liquid systems.

Certification

This product is available with material certification to EN 10204 2.2 for body and cap as standard.

Sizes & Pipe Connections
  • ½ (system connection) screwed BSP
  • ⅛ (air inlet connection) screwed BSP
Body Design Conditions PN16
PMA Maximum allowable pressure 16 bar g @ 180°C (232 psi g @ 356°F)
TMA Maximum allowable temperature 260°C @ 7 bar g (500°F @ 101 psi g)
Minimum allowable temperature -196°C (321°F)
PMO Maximum operating pressure for saturated steam service 14 bar g (203 psi g)
TMO Maximum operating temperature 260°C @ 7 bar g (500°F @ 101 psi g)
Minimum operating temperature 0°C (32°F)
Designed for a maximum cold hydraulic test pressure of: 24 bar g (348 psi g)
VB14 Pressure Graph

VB21

VB21 Spirax Sarco Vacuum Breakers

The VB21 is a small purpose designed vacuum breaker for general purpose applications on condensing vapour (steam) or liquid systems.

Certification

This product is available with material certification to EN 10204 2.2 for body and cap as standard.

Sizes & Pipe Connections
  • ½ (system connection) screwed BSP
  • ⅛ (air inlet connection) screwed BSP
Body Design Conditions PN25
PMA Maximum allowable pressure 25 bar g @ 120°C (362 psi g @ 284°F)
TMA Maximum allowable temperature 400°C @ 13 bar g (752°F @ 188 psi g)
Minimum allowable temperature -48°C (54°F)
PMO Maximum operating pressure for saturated steam service 21 bar g (304 psi g)
TMO Maximum operating temperature 400°C @ 13 bar g (752°F @ 188 psi g)
Minimum operating temperature 0°C (32°F)
Designed for a maximum cold hydraulic test pressure of: 38 bar g (551 psi g)
VB21 Pressure Graph

 

 

2 Products

VB14 Vacuum Breaker 1/2" BSP

Excl. VAT: £142.63

Incl. VAT: £171.16

VB21 Vacuum Breaker 1/2" BSP

Excl. VAT: £243.92

Incl. VAT: £292.70

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