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Hallett Multiplex Wastewater System

Harnessing the power of Crossfire Technology®, Multiplex combines multiple Hallett® systems to handle Wastewater with flow rates of up to 125 GPM and Potable applications with flow rates of up to 137 GPM.
Factory integration of from two to five Hallett 30 potable water purification systems in a NEMA® 4X Cabinet treat up to 137 GPM (519 L/min, 31.1 m®/hr) flow rate.

Other NEMA rated cabinets and equipment configurations are available by special order.


Hallett Multiplex for wastewater, reuse, rainwater and potable applications come with everything connected and ready to commission. It’s simply plug and play. UV Pure® builds substantial value-add into the Multiplex. In addition to Crossfire® Technology’s self-cleaning, dual smart-sensors, and reliable operation, UV Pure supplies the NEMA housing with all products installed. Every Multiplex is fully tested before delivery and all technical support is fully integrated. Housed in NEMA 4x cabinets, Multiplex have the benefit of extra protection making them ideal for hazardous or wet environments. Other NEMA rated cabinets and equipment configurations are also available from UV Pure by special order. Factory integration from two to five Hallett 30 potable water purification systems in a NEMA 4X Cabinet will treat up to 137 GPM (519 L/min, 31.1 m®/hr) flow rate. Hallett potable treatment systems are the world’s only NSF/ANSI 55 Class A Certified UV water purification systems with patented Crossfire Technology. They are engineered to reduce e-coli, bacteria, cysts like cryptosporidium and giardia, legionella and most viruses to safe levels – a minimum of 99.99% reduction.

Pre-treatment Conditions for Multiplex Systems
Hallett Potable System Hallett Wastewater System
Hardness (855 mg/L Max) TSS (20 mg/L Max)
Iron (3 mg/L Max) BOD (20 mg/L Max)
UV Transmittance (75 % Min) UV Transmittance (45% Min, 65% Nominal)
Turbidity (1 NTU Max) Turbidity (4 NTU Max)



Model 2 x H30 2 x H30 w/4-20 mA 3 x H30 3 x H30 w/4-20 mA 4 x H30 4 x H30 w/4-20 mA 5 x H30 5 x H30 w/4-20 mA
PART NUMBER (115 Volt) C51 C51FT C52 C52FT C53 C53FT C34 C34FT
PART NUMBER (240 Volt) C58 C58FT C59 C59FT C60 C60FT C61 C61FT
Validation / Certification Engineered to meet dosing and disinfection requirements of wastewater effluent. Typically a minimum dose of 30 mJ/cm to reduce coliform to < 200 counts / 100ml. Higher doses available for re-use and non-detect applications ( < 2 counts / 100 ml).
UV Dose Minimum dose of 30 mJ/cm2 at end of lamp life
Minimum UV Transmittance Wastewater 65% (Can go down to 45%) Refer to Hallett Wastewater/Potable specs for details
Max Flow Rate 50 US gpm (189 L/min) (11.4 m3/hr) 75 US gpm (284 L/min) (17 m3/hr) 100 US gpm (378 L/min) (22.7 m3/hr) 125 US gpm (473 L/min) (28.4 m3/hr)
Water Pressure 10 psi (69 kPa) to 100 psi (690 kPa); units are tested to 200 psi (1.4 MPa)
Dynamic Flow Restrictor Installed as standard
Pressure Drop at 75% of nominal flow capacity 2 psi (14 kPa)
Redundancy Additional backup systems can be added cost effectively
Solenoid Shut-Off Valve Automatic shut-off valves available as option
Inlet and Outlet Connections 1.5" female NPT connection for easy installation
Voltage North American Models: 115V, Global Models: 115V or 240V
Protection from Power Fluctuations 115V Models include power conditioner that meets UL 1449
Maximum Power Consumption 464W 680W 928W 1140W
Electrical Certification Intertek ETL (UL, ULC and CE equivalent)
Lamps Low pressure, high output proprietary lamps contain 30 mg of mercury (Hg); rated for one year of continuous use
Maintenance Onboard and remote system indicates when to change bulbs - every 12 months (9000 hours). Quartz sleeve is self-cleaning and requires no outside maintenance
Electronic Ballast Auto power-regulated smart ballast is integrated with micro-processor control system; protected from power fluctuations
Self-Cleaning Stainless Steel patented automatic wiper-blade system keeps quartz free from scaling or bio-film
On-Board Micro-Processor and Monitor Patented dual smart UV sensors monitor lamp output (UVI) and water transmittance (UVT) continuously
4-20 mA Analog Output N/A Installed as standard N/A Installed as standard N/A Installed as standard N/A Installed as standard
Dry Contacts Included as standard for applications that require remote alarming, auto-dialer integration, or similar.
Remote Alarm Included as standard on all models.
Warranty 1 year limited warranty on bulbs and sensor probes on a prorated basis; 3 year limited warranty on electrical components and quartz sleeve; 5 year limited warranty for structural, hardware and mechanical components
EPA FIFRA Certified EPA Est. No. 075213-CAN-001
Patents Patented in US 6,707,048, Canada 2,463,503, Australia 2002333084, Mexico 248805, Patents pending in Europe, Eurasia, Japan, UK

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Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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