Compact Low-Pressure UV Lamps
Space-saving low-pressure UV lamps designed for point-of-use, residential, small commercial, and laboratory water treatment applications.
Product photography and engineering details
Miniaturized arc geometry enables integration into point-of-use reactors as small as 100 mm diameter.
T5, T8, G23, and 2G11 bases covering the majority of residential and light commercial reactor platforms.
4–75 W operation achieves certified 40 mJ/cm² dose, keeping annual electricity costs under $10 per system.
Annual replacement cycle aligns with standard residential maintenance schedules and NSF 55 certification requirements.
RoHS-compliant manufacturing with reduced mercury fill for safer handling and disposal in residential settings.
Spectral output optimized for photoelectric UV-C sensors used in smart UV reactor monitoring systems.
| Model | Flow UVT ≥75% | Flow UVT ≥90% | Lamp W | Flange | H | W | L1 | L2 | D |
|---|---|---|---|---|---|---|---|---|---|
| PUV-PD-120W-2U | 9 | 11 | 120 | DN50 | 280 | 108 | 965 | 700 | 1212 |
| PUV-PD-320W-3U | 16 | 19 | 120 | DN65 | 335 | 133 | 965 | 700 | 1212 |
| PUV-PD-120W-4U | 21 | 25 | 120 | DN80 | 335 | 133 | 965 | 700 | 1212 |
| PUV-PD-120W-5U | 34 | 41 | 120 | DN80 | 410 | 168 | 965 | 700 | 1212 |
| PUV-PD-120W-6U | 40 | 48 | 120 | DN100 | 420 | 168 | 910 | 700 | 1212 |
| PUV-PD-120W-7U | 63 | 76 | 120 | DN100 | 460 | 219 | 910 | 700 | 1212 |
| PUV-PD-120W-8U | 71 | 86 | 120 | DN125 | 460 | 219 | 870 | 700 | 1212 |
| PUV-PD-120W-9U | 92 | 110 | 320 | DN125 | 550 | 275 | 854 | 700 | 1212 |
| PUV-PD-320W-10U | 101 | 122 | 320 | DN150 | 550 | 275 | 854 | 700 | 1212 |
Note 1: UVT 75%: the UV 253.7nm transmittance of water is 75% @ 10mm.
Note 2: UVT 90%: the UV 253.7nm transmittance of water is 90% @ 10mm.
Note 3: Designed UV dosage is 40mJ/cm², water flow rate of which is maximum value.
Industries and use cases where the PD SERIES excels
Under-sink and countertop systems protecting individual households from microbial contamination.
Restaurants, cafes, dental offices, and salons requiring certified water disinfection.
Pure water polishing for analytical instruments and cell culture applications.
Compact UV treatment for mobile and offshore freshwater systems.
The PD Series delivers proven germicidal performance in a compact, energy-efficient format. These lamps are engineered for easy integration into under-sink, countertop, and inline UV reactors serving flow rates from 0.5 to 20 LPM. With T8 and T5 base formats, the PD Series fits standard reactor housings from Viqua, Atlantic Ultraviolet, and other leading OEM manufacturers. Low wattage operation (4–75 W) minimizes energy consumption without compromising the 40 mJ/cm² minimum dose required for certified disinfection.