Fractionation
Trays

EV1

Round valve, one-piece

Conventional round valve with one-piece construction and flat orifice. Anti-spin features as standard. Available in different leg lengths to accommodate various tray thicknesses. Higher capacity and wider operating range than sieve trays. Available in dual weights.

EC1

Round valve, two-piece (cage)

Two-piece construction — moving valve cap with a cage fixed to the deck. Same capacity as EV1 but with higher operating range and lower tendency to weep. More robust: cage difficult to dislodge during operation.

EBD

Rectangular valve, single-piece

Single-piece rectangular valve. Operating characteristics similar to EV1. Typically offered as drop-in replacement for other OEM rectangular valve trays.

EV4

Venturi-orifice valve

Construction similar to EV1 but with a venturi orifice in the tray deck. Same capacity as EV1 with lower pressure drop.

EVFS

Conventional fixed valve

Fixed-valve construction involves embossing the tray deck. Capacity matches EV1 but with lower pressure drops. Variable net rise can be set per process conditions. Larger size of fixed valves provides better fouling resistance.

EV0_M

Mini fixed valve

They are punched directly from the tray deck with a proprietary shape, oriented parallel to the liquid flow. Allows for a larger number of valves to be accommodated on the tray deck, provides uniform distribution, and has no moving parts. A 10%+ capacity gain over conventional valves has been observed with these valves.

EV0_P

Mini fixed directional valve

Proprietary shape with uni-directional vapour release. Flexibility to orient in different directions. Eliminates stagnant liquid zones.

EV1_M

Mini movable valve

Allows for more valves to be fitted on the tray deck. They have a wider operating range than fixed valves. Available in dual weights.

EMVG

Mini fixed valve

Fixed-valve construction involves embossing rectangular, tapered valves in the tray deck. They can provide 15%+ capacity gains over conventional valves. These valves are smaller in size than EVFS valves.

EVER-HPT

High Performance Trays

Active area improvement, inlet area optimisation, and enhanced downcomer layouts. Multi-chordal side downcomers, truncated downcomers, stepped-in or multi-stage designs.

• Performance gains of more than 15%
• Lower tray pressure drop
• Same or higher efficiency
• Eliminates stagnant liquid zones

EVERFRAC

High Capacity Trays

EV0_M fixed and EV0_P directional valves combined with multi-chordal or truncated downcomers and boltless construction. Turndown ratio (maximum:minimum load): 2.5:1 standard, up to 4:1 with EV1_M valves.

• 15%–30% higher capacity than conventional
• Long flow path lengths
• Boltless construction allows for more valves on the tray panels

EVER-CON BC

Bubble Cap Trays

Low liquid rate services or where a turndown ratio (maximum:minimum load) of 10:1 is required. Caps available from 2″ to 6″, slotted or un-slotted. It also has reaction-tray applications where high residence time is needed.

EVER-CON SV

Sieve Trays

Perforated active deck, typically 13 mm holes (range 6–25 mm). Turndown ratio (maximum:minimum load): 2:1 standard. Lower cost than movable valve trays.

EVER-CON DF

Dual Flow Trays

Sieve trays without downcomers. Hole size 6 mm (clean) to 25 mm (fouling). Open area 10–25%. Heat transfer and fouling applications.

EVER-CON BF

Baffle / Shower / Disc & Donut

High open area (40–50%) trays for heavy oil, FCC slurry sections, coker wash, olefin quench bottoms. Where fouling resistance matters more than separation efficiency.

Cartridge Trays

Trays are assembled into a cartridge for installation and removal as a combined unit. They are suitable for smaller-diameter columns where access for individual tray installation is limited.

Boltless Construction

Proprietary boltless panel-to-panel connection. Eliminates fasteners, reduces installation time by 20–30%, improves valve coverage across the panel. Available as an option on EVERFRAC.

Horizontal Installation

Special steps are taken to install the trays at a vessel vendor’s workshop, so that field installation work is minimised on site and start-up can proceed with minimal issues.