'/%3E%3C/svg%3E)
Hover image to zoom
1/2" Male NPT MIXCAL 3-Way Adjustable Thermostatic Mixing Valve w/ Temp Gauge & Inlet Check Valves
 --%3E %3Csvg version='1.1' id='No-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23CECECE' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
$227.05 each
In Stock
Order by 6PM, receive Tomorrow
Size:
1/2"
Connection Type:
MNPT x MNPT
Features:
Gauge
'/%3E%3C/svg%3E){kind=small}
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
MNPT x MNPT Connection
1/2"
3 Cv
150°F Max Temp
85°F Min Temp
85°F - 150°F
Description
–
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 IAPMO R&T.
Features:
The valve has been specifically certified to ASSE 1017 and Low Lead Plumbing Law by IAPMO R&T.
Features:
- Low-lead brass body and fittings.
- Internal anti-scale materials.
- Locking set point knob.
- Meets requirements of ANSI/NSF 372-2011.
- Max. working pressure: 200 psi.
- Max. inlet temperature: 200ºF.
- Adjustable range: 85 - 150ºF.
- Min. flow for optimum performance: 1.3 gpm.
- Certified to: cUPC listed to ASSE 1017/
- CSA B125.3, Low lead.
Specs
–
| Features: | Gauge |
|---|---|
| Size: | 1/2" |
| Connection Method: | Threaded |
| Connection Type: | MNPT x MNPT |
| Type: | Adjustable |
| Max Pressure (PSI): | 200 |
| Temperature Range (F): | 85°F - 150°F |
| Max Temp (F): | 150°F |
| Min Temp (F): | 85°F |
| Material: | Brass |
| Body Pattern: | 3-Way |
| Application: | Point of Source |
| Standards Met: | ASSE 1017 |
| Flow Capacity (Cv): | 3 |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Compare Similar Products
Brand
Size
Connection Method
Connection Type
Application
CURRENT ITEM
1/2"
Threaded
MNPT x MNPT
Point of Source
1 Replacement Part
Check Valve Insert for 521
SKU: R39204
Caleffi
Need help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
PART REQUEST FORM
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy