Seats and ball design prevents the
body cavity to go over-pressure
(e.g. due to thermal shocks) by
an automatic system of relieving
pressure to the upstream side of
the line (not downstream or to the
atmosphere).
• Low fugitive emission stem
packing (certified to ISO 15848
class A), adjustable or pressure
energized design
• Vent and drain are provided with
pad flanges c/w blind flanges to
prevent leakages on threaded
connections in sour service.
• Anti explosive decompression
seals
• Fire safe certified
• Safety factor on stem design
actuators
• Materials of Italian or north
European origin only.
