Product range
521201A SinkMixer Under sink thermostatic mixing valve,
521201AP includes plug for cold water outlet...........................................size
3
/
8
” compression
SinkMixer™ Under Sink Thermostatic Mixing Valve
Technical specifications
Materials:
- Valve body, regulating spindle, spring holder and cold inlet union nut:
Low-lead brass (<0.25% lead content)
- Internal shutter:
Polysulfone
- Hot inlet strainer: AISI 304 stainless steel
- Spring:
AISI 302 stainless steel
- Seals:
Peroxide-cured EPDM
- Cover:
ABS white
- Mounting bracket and adjustment key:
Polyamide Nylon
Temperature adjustment range:
95–120°F (35–50°C)
Temperature set:
must be commissioned on site to achieve desired temperature
Temperature stability:
±3°F (±2°C)
Cold inlet temperature:
Minimum 39°F (4°C); Maximum 85°F (29°C)
Hot inlet temperature:
Minimum 120°F (49°C); Maximum 195°F (90°C)
Factory setting:
113°F (45°C)
Maximum operating differential pressure:
Static: 150 psi (10 bar); Dynamic: 70 psi (5 bar)
Minimum operating differential pressure (dynamic):
1.5 psi (0.1 bar)
Maximum unbalanced dynamic supply (hot/cold or cold/hot):
2:1
Minimum temperature differential between hot water inlet
and mixed water outlet to ensure thermal shutoff function:
18°F (10°C)
Minimum temperature differential between mixed water outlet
and cold water inlet to ensure stable operation:
9°F (5°C)
Minimum flow rate for optimum operation:
0.35 gpm (1.3 l/min)
Maximum flow rate for optimum operation:
2.3 gpm (8.5 l.min)
Certifications:
1. ASSE 1070/CSA B125.3-2012, certified by ICC-ES, file PMG-1358.
2. NSF/ANSI 372-2011, Drinking Water Systems Components-Lead Content Reduction of Lead in
Drinking Water, California Health and Safety Code 116875 S.3874, Reduction of Lead in Drinking
Water Act, certified by ICC-ES, file PMG-1360.
3. Complies with codes IPC, IRC, UPC and NPC.
1
© Copyright 2020 Caleffi
code 521201A,AP
H0007288.01
www.caleffi.com
ASSE 1070
INSTALLATION AND COMMISSIONING MANUAL
Function
The Caleffi SinkMixer™ thermostatic mixing valve is used in under sink
and under counter applications where the user must be protected
from the danger of scalding caused by hot water. The Caleffi SinkMixer
provides water at a safe and usable temperature in situations where
the control of the temperature of the water discharging from a terminal
fitting is of the utmost importance, i.e. within hospitals, schools,
nursing homes, etc. The valve is designed to prevent the flow of water
discharging from the mixed water outlet in the event of the failure of
hot or cold supply. It is compact for easy installation and includes a
cold water outlet to the fixture eliminating the need for additional piping
and tee for standard three-port mixing valves. For single-pipe fixtures
(tempered water only), code 521201AP includes a plug for the valve
cold outlet port. It has integral check valves on the hot and cold inlets
and is certified to Low Lead Plumbing Law by ICC-ES, ASSE 1070 listed
(temperature cannot exceed 120°F).
