the oliver twinsafe le series of trunnion-mounted ball valves have been specially developed to meet the demands of low fugitive emissions, at elevated temperatures up to350ºc.
oliver has developed a patented design, working closely with a major seal manufacture, to provide class b leakage rate at high temperatures above 200ºc.
the valves are available as a metal seated design, with specially selected materials of construction to ensure full compatibility with project requirements.
valve design：api 6d
pressure class：asme class 150 – 900
temperature range：-50ºc to 350ºc
end connections：flanged, butt weld, hub
size range：1 to 18in (dn25 to dn500)
design features
single isolate, dib or dbb designs available
dvt qualification tested to shell standard 77/300
advanced polymer sealing technology
forged 1 piece compact body, 2 piece or 3 piece body designs
bi-directional sealing
anti-static device
anti-blow out stem
self-relieving seats
manual or actuated operation (electric/pneumatic/hydraulic)
testing & certification
• independently tested by shell to their dvt qualification standard 77/300
• firesafe qualification testing to iso 10497, api 6fa and api 607
• fugitive emission testing to 77/312 class bh
• pressure equipment directive 2014/68/eu
