Armstrong Rada 320 - Operational Specifications; Technical Specifications

2
Water Temperature Control - Groups of Fixtures
Thermostatic
Rada 320
Rada Thermostatic Mixing Valve of “sealed for life” disposable
cartridge construction. Compact design with top and/or bottom
blended water outlet makes Rada 320 ideal for recessed
enclosure, plumbing chase and utility/mechanical room
installation.
Complete operating mechanism of valve is enclosed in a
durable polymer cartridge for ease of field maintenance.
Powerful internal mechanism and non metallic wetted parts
resist mineral deposition.
Capable of close temperature control at diverse flow rates
between 1 gpm (3.8 lpm) 24 gpm (91 lpm). Able to blend within
5°F (2°C) of either inlet supply due to “low seepage” across
internal proportioning mechanism.
Operational Specifications
• Dualthermostaticelementsprovideredundancyinthe
event of individual thermostat failure
• Typicaloutlettemperaturecontrol+/-2°F
• Adjustablemaximumtemperaturelimitstop
• Adjustablesingletemperaturelockout
• Thermalshutdownmodeuponinletsupplyfailure
Technical Specifications
• 1” NPT inlets and 1” NPT outlet
• Chrome-platedDZRbrass/polymerconstruction
• Operating pressures
Maximum: 150 psi (10 bar)
Minimum: 10 psi (.7 bar)
• Integral inlet check valves and strainers
• ASSE 1017 and CSA B125 certified
• Shipping weight 10 lbs (4.5 kg)
Forasubmittaldrawing,refertoCDLW#1061.
Blended
Water
3"
(77 mm)
4x Ø 5/32"
on 1.75 DBC
Cold
Water
Hot
Water
5-7/8"
(149 mm)
2"
(52 mm)
7-3/8"
(187 mm)
Ø 3-1/4"
(83 mm)
Rada Thermostatic Mixing Valves (gpm)
Model
Pressure Drop (psi)
Min.
Flow
C
V
5 10 15 20 25 30 35 40 45 50
320 8 11 13 15 17 19 20 22 23 24 1 3.4
425 15 22 27 31 35 38 41 44 46 49 2 6.9
40 36 51 62 72 - - - - - - 2 16.0
50 49 70 85 98 - - - - - - 2 22.0