ULTRAAQUA · SWIMMING POOL UV DISINFECTION
MULTIRAY Series
Medium-pressure UV systems for high-capacity pool disinfection and combined chlorine removal.
Pricing on request.
Overview
The MULTIRAY series is designed for larger pools that need high treatment capacity. Pool-optimised medium-pressure lamps break down organic chloramines continuously by photolysis, which lowers combined chlorine, improves air quality and protects swimmers against Cryptosporidium and Giardia.
Large flanged connections and a CFD-optimised reactor keep head loss low and minimise the need for extra pumping. The PLC can dim the lamps according to combined chlorine readings, timers or the UV sensor, and can hold a minimum UV dose during opening hours.
Ozone UV Solutions supplies MULTIRAY systems as an authorised ULTRAAQUA reseller and supports them locally: from sizing and installation through commissioning, servicing, lamps and spare parts.
Key features
- Developed for high-capacity pool disinfection and combined chlorine removal
- ULTRATHERM medium-pressure high-intensity lamps, 1,000 W to 3,500 W, with a rated life of 9,000 hours
- CFD-optimised, electropolished SS316L reactor with low head loss
- Automatic ULTRAWIPERâ„¢ sleeve cleaning [manual wiper]
- Pool-specialised UV sensor with valve, removable for cleaning during operation
- Siemens PLC with 7" ULTRATOUCH touchscreen, ULTRADOSE pacing 50–100% and remote monitoring
Typical applications
- High-capacity swimming pools: disinfection and combined chlorine (chloramine) reduction
- Protection of pool water against Cryptosporidium and Giardia
Models and specifications
MULTIRAY models
| Model | UV lamps | Lamp power | Connection | Reactor dry weight | Reactor volume | Power | Cabinet (H×W×D mm) |
|---|---|---|---|---|---|---|---|
| MULTIRAY MP1-1000 | 1 | 1,000 W | DN150 (ANSI 6) / D160 | 17 kg | 10 L | 1.1 kW | 600×600×300 |
| MULTIRAY MP1-2000 | 1 | 2,000 W | DN200 (ANSI 8) / D200 | 23 kg | 18 L | 2.2 kW | 600×600×300 |
| MULTIRAY MP1-3500 | 1 | 3,500 W | DN250 (ANSI 10) / D250 | 28 kg | 26 L | 3.6 kW | 600×600×300 |
| MULTIRAY MP2-3500 | 2 | 3,500 W | DN300 (ANSI 12) / D315 | 42 kg | 58 L | 7.2 kW | 800×800×300 |
| MULTIRAY MP3-3500 | 3 | 3,500 W | DN300 (ANSI 12) / D315 | 44 kg | 58 L | 10.7 kW | 1000×1000×300 |
| MULTIRAY MP4-3500 | 4 | 3,500 W | DN300 (ANSI 12) / D315 | 46 kg | 58 L | 14.2 kW | 1000×1000×300 |
Flow capacity by model
| Model | Max. flow at 3 m/s | Flow at 60 mJ/cm², 95% UVT | Flow at 60 mJ/cm², 98% UVT |
|---|---|---|---|
| MULTIRAY MP1-1000 | 190 m³/h | 63 m³/h | 82 m³/h |
| MULTIRAY MP1-2000 | 300 m³/h | 143 m³/h | 200 m³/h |
| MULTIRAY MP1-3500 | 480 m³/h | 275 m³/h | 400 m³/h |
| MULTIRAY MP2-3500 | 800 m³/h | 650 m³/h | 1,000 m³/h * |
| MULTIRAY MP3-3500 | 800 m³/h | 950 m³/h * | 1,450 m³/h * |
| MULTIRAY MP4-3500 | 800 m³/h | 1,250 m³/h * | 1,900 m³/h * |
Common specifications
| UV LAMPS & MONITORING | |
|---|---|
| Lamp type | ULTRATHERM medium-pressure high-intensity (MPHI), electronic ballast |
| Rated lamp life | 9,000 hours |
| UV monitoring | Pool-specialised UV intensity sensor with valve |
| Power control | ULTRADOSE automatic pacing, 50–100% |
| Approvals | CE [UL] |
| UV CHAMBER | |
| Chamber material | SS316L / 1.4404, electropolished inside and out |
| Connection type | EN 1092 Type 01A PN10 (ANSI Class 150) |
| Design pressure | 10 bar |
| Quartz sleeves | High-purity fused quartz, transmittance > 95% |
| Cleaning | ULTRAWIPERâ„¢ automatic mechanical wiper with PTFE/fibre rings (electric) [manual wiper] |
| Installation | In-line, horizontal or vertical · single-sided access |
| Other | Temperature probe · IP65 · prepared for ½" vent/drain valve (valve not included) · minor wetted parts FDA-approved PTFE, PVDF, Viton |
| CONTROL CABINET | |
| Control logic / HMI | Siemens PLC · 7" ULTRATOUCH touchscreen |
| Communication | Modbus TCP/IP · remote monitoring |
| Digital / analogue I/O | ON signal · flow input (4–20 mA) · UV dose output · alarm output |
| Logging | Alarms, events and data (UV dose, UV intensity, flow, combined chlorine) |
| Cabinet | Powder-painted steel · wall-mounted, ambient 0–40 °C, non-condensing · IP54 [IP65] · fan cooled |
| Power supply | 3 × 400 VAC ±10% +N+PE 50/60 Hz |
| Cable length | 10 m standard [up to 30 m] |
Pricing on request.


