Hydrotech DLR-4M_7M Ultraviolet Water Disinfection Unit - Manual (Page 21)

O & M Manual DLR-M, 4-7
08/05 – Rev. 6 21
Technical Specifications: DLR-M
All prices and specifications are subject to change without notice.
Technical Description
Description The UV system is designed with a single low pressure high intensity UV lamp centered
inside a protective quartz sleeve. The disinfection chamber is either 304 or 316L stainless
steel and is electro-polished with male NPT Inlet/Outlet. The UV lamp and quartz jacket
assembly are easily removable from one side of the disinfection chamber.
UV disinfection chamber • Material: stainless steel electro-polished
• UV sensor
• Mounting: vertical or horizontal
• Inlet/Outlet connections: Male NPT thread
• Mounting brackets included
UV lamp High output low pressure UV lamp
UV sensor One selective sensor, selectivity > 99% at 254 nm, non-aging
Control Box • Material: ABS, designed for wall or UV chamber mounting
• Electronic power supply (ballast)
• LED readout
• Solenoid valve activator outlet
• Cable length UV chamber/control box: 4.9’
Application The UV system is engineered to disinfect clear fresh water to meet drinking water
standards.
Operational capacity Clear fresh water up to 13 US GPM (Refer to Flow Rate Table below.)
Options • Voltages 230 Volt / 50 or 60 Hz (CE conforming)
• Solenoid inlet valve (NPT size corresponding to reactor NPT connection for each unit)
¾”, 1”, and 1 ½” normally closed.
The DLR-M is available in different sizes based on flow capacity.
Flow Rate Table: Valid for water with minimum UV transmittance > 70% @ 1cm (254nm)
Model 4-M 7-M
Flow rate (gpm) at UV dose of 40 mJ/cm 2 at the end of lamp lifetime* 5 1 13 1
* 40 mJ/cm 2 = 40,000 µWs/cm 2
Notes: (1) Flow rates based on flow restrictor installed in line.
UV Reactor, Stainless Steel 304 (1.4301) Electro-polished
Reactor connections, male NPT thread ¾” 1”
Width (inches) 5 5
Height (inches) 26.38 40.55
Diameter (inches) 4.02 4.02
Weight (lb.) approx. 7.06 11.03
Operating pressure (psi) max. 148 148
Operating pressure (psi) min. 0 0
Operating temperature (°F) min. 33 33
Operating temperature (°F) max. 100 100
Water inlet temperature (°F) min. 33 33
Water inlet temperature (°F) max. 100 100
Pressure loss (psi) approx. 2 2
UV Lamp, Low Pressure High Output
Lamp Part Number NLR1845 WS NLR1880 WS
Lamp Power (Watt) 40 80
Quantity 1 1
Lamp lifetime (days) 365 365
1 The certified flow rates listed here apply to units shipped after 11/01/05 (Date Code 300-05).