Nabic® Model Fig 568 anti-vacuum valve is approved by the UK Water Research Centre for use on potable water. The valve head, normally held against its seat by system pressure, is set to open at a vacuum pressure of 50m bar. A dust cap prevents the direct entry of foreign matter. The strengthened body complete with taper thread ensures a tight seal between the vessel and valve whilst maintaining the integrity of the seat seal.
Body Materials: Gunmetal
Ends: Screwed BSPT
Seat Materials: PTFE
Temperature Range: Up to 195°C
Max Working Pressure: 13.5Bar

TECHNICAL SPECIFICATIONS
TERM
DESCRIPTION
BRand/ Model
Nabic Anti-Vaccum 598
Nominal Size
50mm