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Sita SMP Medium Pressure Range UV System (40 to 1200 m3/hr)

Sita SMP Medium Pressure Range

Sita SMP Medium Pressure Range

The Medium Pressure (SMP) UV system emits an UV-C irradiation between 200 and 600 nm; these waves length cause an alteration of some chemical links present among nucleotids so that the information contained and conveyed by DNA of every organism present in the water change.
These alterations lead to the cellular death and so to the bacteriological elimination.
Moreover thanks to this multispectrum wavelength of medium pressure lamps the UV unit has the ability to break chemical bonds, and have a good reduction of unwanted chemicals in water. This “photolysis process” has a lot of application in swimming pools (reduction of combined chlorine) and process water (de-chlorination, de-ozonation, TOC reduction)
The disinfection system has a physical working principle and not chemical. Nothing is added to, not taken away from water; in this way there is no formation of undesired by-products even in case of overexposure, in the full respect of environment.

The. UV-C systems is composed of:
- Stainless steel reactor that contains the special germicidal lamps
- Control panel, made in compliance with the CE standard
Technical Description

Technical Description


Flow rates: from 25 to 1200 m3/h (depending on UV – C transmittance value)
UV dose after 7000 hr: 600 J/m2 for XL version
800 J/m2 for DS version
Power: from 600 W to 14.000 W
Connections: Flange type (not in the model SMP 6)
Lamps: Medium pressure UV lamps (lifespan: 6.000 - 8.000 hr)
Sensor: UV-C selective sensor
Max Pressure: 10 bars
Temperature range: 0 – 50 °C (ask for higher temperature)
UV reactor material: Stainless steel 316L
Control Panel material: Painted steel – RAL 7035
Stainless steel reactor

Stainless steel reactor

The UV reactor is totally in stainless steel 316L internally/externally polished; the stainless steel of its
chemical/physical characteristics is particularly suitable for the treatment of primary waters, and being
polished also in the internal part it is completely without porosity that could favour the keeping of spores.
The special UV reactor configuration guarantees a correct contact time, water speed decrease when it arrives in the “special radiation area” and then returns at original speed at the outlet flange
To make the maintenance and inspection operations easier the chamber is openable at the lamp side.

Configuration: In line (not on SMP 6)
Mounting: vertical or horizontal configuration
Connections: flanges PN 10 (UNI EN 1092 -1)
UV sensor holder: Stainless steel 316L
UV sensor: selective sensor (option: DWGV or Ö-Norm Sensor)
Seals: Silicone and Viton
Cleaning system: Manual cleaning – standard (automatic cleaning – optional)
Control Panel

Control Panel

The electrical control panel supplied is ready for the installation (complete of all the necessary cables)

- Steel painted control panel box (RAL 7035) with 2 doors, main switch, cooling fans and UV cube monitor
- Protection class: IP 543/4 SMP Series
- Status messages ( 5 languages: Italian, English, Spanish, Portuguese, German)
- Microprocessor control - Total hour meter
- Resettable hour meter
- Control of each lamp
- Electrical panel temperature control - ON/OFF timer
- Alamr 220 V NA/NC outlet - Remote on/off - Alarm Free contact outlet - Max cable length: to be defined (SITA control panel can be installed far away from UV reactor)
- 4-20 mA outlet (optional)
- UV intensity: W/m2 or %
- Pre alarm UV intesity
- Shutdown for high temperature in the UV chamber and in the electrical panel - Control of temperature - irradiation (pre set alarm threshold)
- Shut off for flooding
- Provision for connection with external flow: online flow visualisation, shuttoff in case of no flow, possible shut off for low flow, possible shut off for high flow (optional)
- Datalog of the flow rate (optional)
- Datalog of irradiance and panel and chamber temperature (optional)
- GSM box for remote monitoring and control with mobile phone (optional)
- Temperature Range: (0-45°C)

Sita SMP Medium Pressure Range UV System

Sita SMP Medium Pressure Range UV System

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