Brochure

Sky vent valves may operate during startup and shutdown of the heat recovery steam generator, bypassing main steam around the steam
turbine to the atmosphere.
Sky vent valves must withstand the full pressure drop that occurs as the valve dumps high pressure and temperature steam directly to the
atmosphere. They should operate quietly during dump operation and provide tight shutoff during normal operation to prevent valuable
steam leakage.
Sky Vent
Product Solutions
28 | Fisher
®
Pulp and Paper Solutions
n MAXIMUM FLOW CONTROL Pneumatic actuation provides highly accurate step positioning and stable valve response.
n FLOW RESPONSE Optional accessories ensure quick step valve positioning for precise throughput and control.
n NOISE REDUCTION Noise abatement technology reduces the harmful effects of noise and vibration.
n TIGHT SHUTOFF Advanced sealing technology provides tight shutoff and extends valve’s service life.
n EASE OF MAINTENANCE Valve can remain in pipeline during removal of trim parts for inspection or maintenance.
n POSITIONER FEEDBACK Linkage-less and non-contact feedback improves reliability in high vibration.
Fisher HPT control valve, 585C actuator, and FIELDVUE DVC6200
Power and Steam Cycle
Power and Steam Cycle