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Main product image of 1-1/4" 573 Sweat Zone Valve
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1-1/4" 573 Sweat Zone Valve

Brand:
Taco
SKU:
573-2
Rating:
(67)
Q&A:
(28)
1-1/4" 573 Sweat Zone Valve
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$230.13 each
In Stock
In Stock
Get 19 Tue, Jul 7
Order by today, receive Tuesday
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Product Highlights

Product Highlight: Body Pattern
2-Way
Product Highlight: Connection Type
Sweat Connection
Product Highlight: Flow Capacity (Cv)
7.2 Cv
Product Highlight: Size
1-1/4"
Product Highlight: Voltage
24V
Product Highlight: Position
Normally Closed

Description


When you want the industry standard for hydronic heating applications, choose Taco's 570 Gold Series. Designers prefer these valves for their quiet and dependable operation. Installers appreciate the open lever and twist-off head that makes installation and service easy. Available in 1/2" - 1 1/4" sweat connections.
Taco 570 Series FAQ Text

Specs

Application:

Zoning

Size:

1-1/4"

Position:

Normally Closed

Min Flow (GPM):

10

Flow Range (GPM):

10 to 16 GPM

Max Flow (GPM):

16

Flow Capacity (Cv):

7.2

Voltage:

24V

Connection Type:

Sweat

Width:

3-7/8"

Body Pattern:

2-Way

Height:

4-13/16"

End Switch:

Yes

Material:

Bronze

Amperage:

0.9

Depth (Inches):

2"

Max Pressure (PSI):

125

Wiring:

3 Wire Terminal Block

Hertz:

60

Min Temp (F):

40°F

Max Temp (F):

240°F

Temperature Range (F):

40°F - 240°F

Contact

+
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Compare Similar Products

Brand
Size
Position
Flow Capacity (Cv)
Voltage
Connection Type
CURRENT ITEM
1-1/4"
Normally Closed
7.2
24V
Sweat
1-1/4"
Normally Closed
42.2
24V
Sweat
1-1/4"
Normally Closed
42.2
24V
Sweat
1-1/4"
Normally Closed
8
24V
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You May Also Need

2 Replacement Parts

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Product Reviews

4.76 out of 67 reviews
97% would recommend this product
4.76
out of 67 Reviews
97% would recommend this product
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5 star
85%
4 star
9%
3 star
3%
2 star
3%
1 star
0%
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Customer Images

Most Liked Positive Review

Reliable valuve

I have had these in our house for 30 years. I added a new bedroom and 2 baths and put in a new zone.
VS

Most Liked Negative Review

Seat fail in 3+ years

The seat assemblies start to leak after 3+ years. I believe that the copper bellows that keeps the piston watertight just starts to breakdown. Taco fails to redesign it. The assy. costs as much as the valve, so if you get the whole valve and take out the seat assy., you must recycle all the brass on the outside. It's a poor and costly design and not worth the trouble for the long haul.
Showing 1-10 of 67 reviews

Great product

Fast shipping, every time!
Chuck
NH
8 months ago
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I would use them again in a second.

Shipment and receipt were quick and the pricing excellent.
EricG
Wayne, PA
2 years ago
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Valve replacement

Valve is working as intended so far.
Kona
Providence, UT
2 years ago
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yes

just a maintace part
joe tech
ny
2 years ago
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I will be ordering all my plumbing supplies from here

Good price fast shipping
Darren
Adirondacks
3 years ago
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yes I would

this is the real bottom line the service is great and the part was perfect
speed wagon
wellsriver vt
3 years ago
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Great Valves

These valves work great. We have 4 others on our system that are 21 years old.
Rich
CT
3 years ago
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Cheaper than the rebuild kit.

Had a zone valve fail. Hot water was circulating in this loop when any zone called for heat. I bought this just for the inside valve. I am using the valve, spring and motor. It cheaper than the rebuild kit.
The swimming man
Northern Indiana
4 years ago
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Just what I needed

Just what I needed and fast delivery
Manolito
Hackensack, NJ
4 years ago
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Worked like a charm

Exact replacement for a 30+ year old one that was sticking. No fuss (well, sweat soldering is not a lot of fun, but that's not the valve's fault and I wanted to not change things up since I'll possibly replace the aging furnace next year anyway). So if another one sticks, (I have 4 zones) I'll buy it again.
zman
Albany NY
4 years ago
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Product Q&A

28 Questions
28 Questions
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Q: I have a zone valve Taco 571-2 and does not open when my thermostat turns it on. I open it manually but there's no flow of water. What is the problem and what should I do? Thanks

Asked by 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

It sounds like the valve is bad. If that is the case, you will need to replace the whole unit.

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Q: i need to know what 123 are for my aquastat wiring diagram show 4 wires going to each zone valve but it was working with this 571 valve. i cant find the diagram for this zone valve

Asked by smith 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Please refer to page 4 of the following product data file: http://s3.pexsupply.com/manuals/1296583564519/45982_PROD_FILE.pdf

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Q: I'm having a problem with controling the heat in my house. It is always 6-8 degrees hotter then the thermastat. I have two zones with two Taco 571-2. They both have the lever up in the open position. Would it help if I put them in the close position? What would happen if I put them in the closed position? Thank you.

Asked by Gary 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

They should only be in the open position when there is a call for heat.

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Q: Do all 571-2 valves, regardless if 1/2 to 1" use same replacement head

Asked by Pete 16 years ago

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Yes, they do. The part number is 555-050RP.

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Q: Do I need a zone valve for each zone or can I use a check valve in one?

Asked by Chas 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

You need one zone valve in each zone.

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Q: i am hooking up taco value but only have two wires black n white where do they go on the value 123

Asked by chuck 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

You can take a look at this wiring diagram: http://www.taco-hvac.com/uploads/FileLibrary/100-3.pdf

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Q: One of my 571-2 zone valves seems to not be functional. If set to normal operation, nothing. If I set the manual override to "open" the system keeps running and overheats the space. Is it likely just needing a replacement contol (40) or a full replacement?

Asked by Stephan 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

It seems that you would need a Zone Valve Power Head (Series 570) SKU: 555-050RP.

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Q: I have these zone valves and a six zone control. I am trying to get a handle on how to wire everything. Is it okay to wire up the zone valve without having it plumbed in, just to see if it works properly? I did wire up the three wire system and connect the thermostat wires, and got a bit of smoke from the zone valve head, so I disconnected it quickly.

Asked by The tjd 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Yes, you would be able to wire the zone valves before you install them into the system to ensure they are operating properly. However, there should be no factory smoke coming out of the unit. We recommend having a licensed installer come in and double check the wiring.

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