Hinged cover provides a fixed pivot point, ensures proper reseating and added safety.
Cover cannot separate from the base.
Easily lifted open to provide a large, unobstructed passage for easy tank access.
‘Tite seal’ diaphragm design ensures minimum vapor leakage losses to 1 CFH at 90% of setting.
Durable PTFE seal backed by a non-asbestos cushion disc for added resiliency and reduced leakage.
PTFE diaphragm protects the cushion disc from direct contact with tank vapors in chemical and low temperature applications.
Carbon steel units have steel bases with a welded and machined stainless steel tip on the nozzle perimeter to ensure a corrosion resistant seating surface.
Optional stainless steel bases for chemical and low temperature applications.
Flange mounting dimensions conform to either API 650 or ANSI 150#.
Optional vacuum valve available in cover.