The V-Grid tray technology utilizes a fixed valve and combines the attributes of sieve and float valve trays. The tapered, rectangular valves are formed out of the tray deck and are oriented parallel to the liquid flow, thus providing unique advantages compared to traditional sieve trays. Our most recent development is a large umbrella shaped fixed valve, UFM™ AF, which provides both: a high capacity and great fouling resistance. Slit trays are highly efficient radial flow trays, especially developed for the fine chemicals and pharmaceutical industries.
UFM™ AF is the latest addition to our fixed valve portfolio. The enhanced valve is part of the UFMPlus™ tray family, developed for fouling service.
UFM AF is a large size valve which provides excellent fouling resistance, especially when designed with the following anti-fouling features on the tray:
Modified outlet weirs: stepped or sloped
Push valve
It is a premium anti-fouling valve with very high efficient capacity. Enhanced downcomers can be applied to UFM AF trays for even higher capacity, if required.
Slit trays are highly efficient trays with centric symmetry and pairs of slits to allow vapor flow through the tray. They are ideal for the distillation of aqueous systems, when, due to the high surface tensions, a metallic packing is not advantageous, and for multi-purpose distillation systems.
Functional features
Extremely low tray spacing of 150 to 250 mm possible (200 mm standard)
High efficiency: 3-4 theoretical stages per meter
Self-supporting structure allows easy installation into empty column shell without support rings
Large turndown up to 1:4
Suitable for 2 liquid phase systems
Allows any number of feed points or side draw
Fields of applications
Separation of aqueous mixtures in the fine chemicals and pharmaceutical industry
