VIQUA SHF-290 — UV water treatment

The VIQUA SHF-290 is a UV water treatment system. The manufacturer publishes a reference flow of 813 L/min at 40 mJ/cm². Selection depends on the application, peak flow and water analysis.

Flow at 40 mJ/cm²	813 L/min
Flow at 30 mJ/cm²	1,098 L/min
UV chamber dimensions	108 × 20.3 × 43.5 cm

SHF flow values apply at 95% UVT and 20 °C, at the end of lamp life.

Reference UV transmittance (UVT)
Reference test temperature
Lamp condition for rated flow
Manufacturer
UV flow at 40 mJ/cm²
UV flow at 30 mJ/cm²
UV chamber dimensions — manufacturer order
Water temperature
Power consumption
Maximum operating pressure
Number of UV lamps
Chamber material

Use and sizing

At 95% UVT and 20 °C, at the end of lamp life, the published flows are 813 L/min at 40 mJ/cm² and 1098 L/min at 30 mJ/cm². Select the required dose and check the water analysis before using either value for sizing.

Installation

The SHF-290 has 5 lamps and a 316L stainless-steel chamber. The specified water temperature range is 2–40 °C, with a maximum operating pressure of 8.62 bar. Allow space around the chamber for the maintenance operations described in the manual.

Maintenance

The UV lamp and quartz sleeve are service components. Follow the model-specific manual for inspection, cleaning and replacement, and provide access to the chamber and controller during installation.

Technical specifications

SHF flow values apply at 95% UVT and 20 °C, at the end of lamp life.

Model	SHF-290
Manufacturer reference	SHF-290/2
Flow at 40 mJ/cm²	813 L/min
Flow at 30 mJ/cm²	1,098 L/min
UV dose	40 mJ/cm²
UV chamber dimensions	108 × 20.3 × 43.5 cm
Power consumption	550 W
Maximum operating pressure	8.62 bar
Water temperature	2–40 °C
Connection size	4 ″
Number of lamps	5
Chamber material	316L
Reference UV transmittance (UVT)	95 %

Manufacturer documentation

VIQUA SHF / SHFM — Technical sheet — PDF (English)

VIQUA SHF / SHFM — Installation and operating manual — PDF (English)

Frequently asked questions

Which flow should be used for sizing?

Use 813 L/min at 40 mJ/cm² or 1098 L/min at 30 mJ/cm² only with the stated reference conditions and the dose required by the application.

How many lamps does this model use?

The SHF-290 uses 5 UV lamps. Identify replacement components by the exact system reference, SHF-290/2.

How are replacement parts selected?

Use reference SHF-290/2 and the parts list in the model-specific manufacturer manual. Match the lamp, sleeve and controller to that system.

Specifications

Reference UV transmittance (UVT)	95 %
Reference test temperature	20 °C
Lamp condition for rated flow	End of lamp life
Manufacturer	VIQUA
UV flow at 40 mJ/cm²	813 L/min
UV flow at 30 mJ/cm²	1098 L/min
UV chamber dimensions — manufacturer order	108 × 20.3 × 43.5 cm
Water temperature	2–40 °C
Power consumption	550 W
Maximum operating pressure	8.62 bar
Number of UV lamps	5
Chamber material	316L