Pallas (Sita) 550 LCD PLUS 2 x 40w - 100 lpm - 6.0m3/hr 1.5" connection

Sita 550 LCD PLUS: Twin-Lamp UV Disinfection System with Lamp Countdown, 2 x 40W (100 l/min)

The Sita 550 LCD PLUS is the largest twin-lamp model in SITA's LCD commercial-grade UV range, manufactured in Italy to ISO 9001 quality standards and WRAS approved. Two 40W lamps in a single 304 stainless steel chamber (316 optional) give it the highest flow rate of the standard single-chamber LCD models before stepping up to the multi-lamp RACK series.

The PLUS control adds a UV intensity meter (or temperature meter), a resettable countdown hour meter with an end-of-lamp-life alarm, on-screen irradiation/temperature display, and automatic shutdown if the chamber overheats — on top of the standard LCD display, hours-run meter, fault light and alarm relay contact.

Specifications

Who it's for

• Commercial premises needing the highest flow rate available from a single-chamber LCD system, plus full monitoring
• Sites where high-temperature protection for the chamber matters
• Anyone who'd rather see a lamp-life countdown than guess at an annual change date

Why it matters

UV systems should be sized generously against your actual site flow rate — as a rule of thumb, the UV's rated flow should be at least 4 times your required or achievable flow, or you should restrict flow to no more than 38% of the system's maximum rating. We'd also recommend physical pre-filtration ahead of the UV rather than relying on the UV alone: a triple-filter setup (5 micron string wound, 1 micron polyspun, then a 0.45 micron absolute filter) is a common specification, with two absolute filters in parallel where higher flow is needed.