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557-2 has been discontinued
Discontinued February 5, 2020
This product was discontinued by the manufacturer.
MANUALS (3)
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Product Highlights
–
2-Way
Sweat Connection
7 Cv
1"
24V
Normally Closed
Description
–
Taco's 550 Series heat motor zone valves are designed for high-head capacity applications such as high-rise residential and commercial buildings. Heavy-duty construction enables this series to operate up to 150 feet of pump head. They are available in 1/2" - 1" sweat connections.
Taco Heat Motor Zone Valves provide a convenient way to create individual zones or equipment isolation in a hydronic heating system. Utilizing one pump along with multiple zone valves, flow can be started, stopped, or diverted through the system to provide individual room or area comfort control and energy savings.
Features:
Taco Heat Motor Zone Valves provide a convenient way to create individual zones or equipment isolation in a hydronic heating system. Utilizing one pump along with multiple zone valves, flow can be started, stopped, or diverted through the system to provide individual room or area comfort control and energy savings.
Features:
- Proven Performance: Millions in Use. Taco Zone Valves are the Industry's Top Choice for Consistent Performance
- Rugged Dependability
- Silent Operation
- Twist Off Head
- Bellows or Globe Valve Construction Ensures Positive Shut-off and Leak Proof Operation
- Patented Construction
- Easy to Install
- Manual Open (Bypass) Lever
- 24 VAC Powered with Isolated End Switch
- 100% Factory Tested
- Made in the USA
- 3 Year Head, 5 Year Body Warranty
Specs
–
| Application: | Zoning |
|---|---|
| Size: | 1" |
| Connection Type: | Sweat |
| Material: | Bronze |
| Body Pattern: | 2-Way |
| Amperage: | 0.9 |
| Position: | Normally Closed |
| Voltage: | 24V |
| Hertz: | 60 |
| Flow Capacity (Cv): | 7 |
| Min Flow (GPM): | 6 |
| Max Flow (GPM): | 10 |
| Flow Range (GPM): | 6-10 GPM |
| Temperature Range (F): | 40°F - 240°F |
| Max Temp (F): | 240°F |
| Min Temp (F): | 40°F |
| Max Pressure (PSI): | 125 |
| Wiring: | 3 Wire Terminal Block |
| Width (Inches): | 3-5/8" |
| Height (Inches): | 5.375" |
| Depth (Inches): | 2" |
| Pump Head Ft of Water: | 150 Ft |
| End Switch: | Yes |
Questions?
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Saturday – Sunday
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2 Replacement Parts
Zone Valve Power Head w/ End Switch (Series 570)
SKU: 555-050RP
TacoValve & Seat Assembly for Taco 550 Zone Valves
SKU: 555-055RP
Taco
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Product Reviews
2.5 out of 2 reviews
50% would recommend this product
5 star
0%
4 star
50%
3 star
0%
2 star
0%
1 star
50%
Showing 1-2 of 2 reviews
lasted less than a year
Worked fine for 11 months then the stem leaked. The newer version has no way to tighten the stem packing.
soggy basement
washington
9 years ago
Verified Buyer
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Heat zone valves
I replaced existing (old) zone valves in my home heating system. The new valves were exact replacements for the Taco valves that were originally installed in the house (since 1965). I hope these last 50 years also.
Do it yourselfer
Southfield, Mi
11 years ago
Verified Buyer
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Product Q&A
1 Question1 Question
Q: Do you sell only the head and can the head be replaced without draining the system? Thanks, Red
Asked by Red 15 years ago
Add your answer
Verified Reply- PexSupply StaffYes. You will need part 555-050RP ( http://www.pexsupply.com/Taco-555-050RP-Zone-Valve-Power-Head-Series-570-3708000-p ). You will not need to drain the system.
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