Armstrong 3033S Manuale di installazione e manutenzione - Pagina 3

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Water Temperature Control - Groups of Fixtures
Thermostatic
Model 320
Thermostatic Mixing Valve of "sealed for life" disposable
cartridge construction. Compact design with top and/or bottom
blended water outlet makes the Model 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) and 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
• 3/4" MNPT inlets and 3/4" MNPT outlet
• Chrome-plated brass/polymer construction
• Lead Free compliant
• 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)
Thermostatic Mixing Valves (GPM and PSI)
Model
320
5
GPM
8
Thermostatic Mixing Valves (LPM and BAR)
Model
320
0.3
LPM
30.3
Armstrong Hot Water Group, 221 Armstrong Blvd., Three Rivers, MI 49093 – USA
Phone: 269-279-3602, Fax: 269-279-3130
Pressure Drop (PSI)
10
15
20
11
13
15
Pressure Drop (BAR)
0.7
1.0
1.4
41.6
49.2
56.8
HOT
INLET
4.61
(117.0)
7.29
(185.2)
(49.3)
25
30
35
17
19
20
1.7
2.1
2.4
64.4
71.9
75.7
3
MIXED
OUTLET
1.04
5.38
(136.6)
40
45
50
22
23
24
2.8
3.1
3.4
83.3
87.1
90.8
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstronginternational.com for up-to-date information.
COLD
INLET
Min.
C
Flow
V
1.0
3.4
Min.
C
Flow
V
3.8
3.4