EZ-OVT | Fisher™ EZ-OVT Valve Trim | Fisher

Fisher™ EZ-OVT Valve Trim

Fisher EZ-OVT valve trim is dual seat valve trim; designed to maintain long term tight shutoff in on/off services that contain particulates in the flow stream; such as catalyst fines. These valves are used to control and purge the hydrogen and nitrogen transfer gases used in the UOP continuous catalytic regeneration (CCR) refining process.

• EZ-OVT trim features a dual seat design that includes a primary soft seat and a secondary metal seat. This dual seat design provides long term ANSI and IEC Class VI shutoff.
• A double deadband area is built into the trim to inhibit erosive flow across the seating surfaces as the trim starts to open.
• A special flow deflector directs the flow stream away from the seating surfaces once the valve has traveled off the seat.
• Large flow passages and minimal moving parts reduce particulate build-up such as catalyst fines that could collect in these areas and cause failure.