MixCal™ Adjustable Thermostatic Mixing Valve - NA Market

Unique ref.: 521A
Brand: Caleffi
Product family: PLUMBING
Product group: North America
Date of publishing: 2019-05-10
Edition number: 1
Type: Object (single object)

The Caleffi MixCal™ 521 series three-way thermostatic mixing valve is used in systems producing domestic hot water or in hydronic and radiant heating systems. It maintains the desired output temperature of the mixed water supplied at a constant set value compensating for both temperature and pressure fluctuations of the incoming hot and cold water. The valve has been specifically certified to ASSE 1017 and Low Lead Plumbing Law by ICC-ES.

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Thermostatic Mixing Valves For Point of Distribution:
1. MixCal Code 521 series Low-lead three-way adjustable thermostatic and pressure balanced mixing valve ICC-ES certified to ASSE 1017/CSA B125.3- file PMG-1357, approved for point of distribution domestic water systems and radiant hydronic heating systems. Provided with low-lead brass body(<0.25% lead content) certified by ICC-ES- file PMG-1360, with internal anti-scale materials with locking set point knob. Meets requirements of ANSI/NSF 372-2011.
a. Maximum working pressure: 200 psi (14 bar).
b. Maximum operating differential pressure: 75 psi (5 bar)
c. Maximum inlet temperature: 200 degrees F (93 degrees C).
d. Mixed temperature adjustment range: 85 degrees F to 150 degrees F (30 degrees C to 65 degrees C).
e. Suitable fluids: water or 30 percent maximum glycol solution.
f. ICC-ES certified to ASSE 1017/CSA B125.3.
g. Agency approval for low-lead brass body: Lead plumbing law compliance (0.25 percent maximum weighted average lead content). Lead plumbing law certified by ICC-ES.
h. Sizes 1/2, 3/4 and 1 inch, NPT male, sweat, press and PEX crimp with union tailpieces.
i. Models available with inlet port check valves.
j. Models available with mixed outlet temperature gauge, 30 to 210 degrees F scale, 2 inch diameter.
k. Flow rating: Cv 3.0.


Material main: Brass
Material secondary:
Designed in: Italy
Manufactured in: Italy

BIMobject Category: Plumbing - Valves
IFC classification: Valve
UNSPSC name: Valves
UNSPSC code: 401416
Code: L7136
Description: Valves
Code: PR-94-94-xx
Description: Thermostatic Mixing Valves
Uniclass 2015 Code: Ss_40_15_75
Uniclass 2015 Description: Sanitary appliance systems
Code: 94-94
Description: Valves
CSI MasterFormat 2014 Code: 22 00 00
CSI MasterFormat 2014 Title: Plumbing
OmniClass Number: 23-27 31 00
OmniClass Title: Valves
CSI UniFormat II Code: D20
CSI UniFormat II Title: PLUMBING
This product is available in:
North America
  • Canada
  • United States

BIMobject SEEK Properties

Plumbing - Valves

Name Value
Connection Size 1/2" — 1"
Connection Type Union sweat NPT Press PEX expansion PEX crimp
Cw Connection (Y/N) True
Flow Rate 1.3 gpm — 25 gpm
Handle Type Lockable Adjustment Knob
Hw Connection True
Integral Finish Brass
Method Of Operation Thermostatic
Mount Type pipe inline
Working Pressure 200 psi
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