– Spring loaded, non-slam design – Operates in any position – Hydrostatically tested to BS EN 12266-1:2012 – Flanged to BS 4504 PN16 / BS EN1092-2 PN16 / JIS B 2212 10K / ANSI B16.5 Class 150 / BS 10:1962 Table E – Applicable for HVAC System, Fire Protection System, – Plumbing / Sanitary System