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Heating Supplies & Parts
Pressure Valves
Combo Pressure Valves
Fill Valve & Backflow Preventer Combination
1/2" Combination Boiler Feed Valve & Backflow (NPT x NPT)
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$129.34 each
In Stock
Get 133 Wed, Jul 23
Order by today, receive Wednesday
MANUALS (3)
This item replaces: 3450-T1
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Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
1/2"
150 MAX PSI
NPT x NPT Connection
25 MAX GPM
210°F Max Temp
10 PSI
Description
–
The integral design of the Taco 3450 Combi Valve combines a cartridge style backflow
preventer with a pressure regulating cartridge style boiler feed valve into a unique
one piece body configuration. Taco’s 3450 combination dual check backflow with
atmospheric vent and boiler feed valve with purge auto-reset, dial in pressure setting
and adjustable indicator sets a new standard for performance and serviceability.
Designed for use in hydronic heating systems the duel check backflow prevents heating system water from flowing back into the supply water piping if the supply pressure falls below the heating system pressure. The boiler feed valve automatically fills or refills (make-up water) the closed heating system to the desired cold fill pressure. Both the backflow and the feed valve contain cartridges that can be serviced or replaced without draining the entire heating system.
Features
Designed for use in hydronic heating systems the duel check backflow prevents heating system water from flowing back into the supply water piping if the supply pressure falls below the heating system pressure. The boiler feed valve automatically fills or refills (make-up water) the closed heating system to the desired cold fill pressure. Both the backflow and the feed valve contain cartridges that can be serviced or replaced without draining the entire heating system.
Features
- Auto Reset from Fast Fill
- ASSE 1081-2014
- Simple Pressure Adjustment
- Servicable Cartridge for both the Backflow and Feed Valve
- Adjustable 360 View of Pressure Indicator
- Large Adjustment Range
- Serviceable without draining the system
- One Piece Body Construction
- Stainless Steel Strainer
Specs
–
| Size: | 1/2" |
|---|---|
| Connection Type: | NPT x NPT |
| Max Flow (GPM): | 25 |
| Max Temp (F): | 210°F |
| Max Pressure (PSI): | 150 |
| Min Pressure (PSI): | 10 |
Questions?
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Call or text 888-757-4774
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Saturday – Sunday
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You May Also Need
2 Replacement Parts
Replacement Cartridge for Taco Series 3350
SKU: 3350-005RP
TacoBackflow Preventer Cartridge
SKU: 3450-001RP
Taco
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Product Reviews
4.67 out of 3 reviews
100% would recommend this product
5 star
67%
4 star
33%
3 star
0%
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1 star
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Showing 1-3 of 3 reviews
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Nice all-in-one unit
Seems to work as advertised. The instructions included with the valve, however, have some errors in the section on adjusting the pressure. The lock knob is at the bottom of the adjustment knob, NOT on top of the unit. Also, the figures showing the direction to turn for increasing or decreasing pressure are reversed.
Tom Handy
Flagstaff, AZ
2 years ago
Verified Buyer
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I think this device saved me
Not only is this a multiple function device but it (I think) provided me some freeze protection. There is a plastic clap that is threaded into it that blew off. Thus it gushed water as a result of the boiler going off due to a power failure in a deep freeze. Water gushing was horrible but I think because water was allowed to flow through the system it was saved. The only complaint I would have is, why couldn't I buy a new cap?
Survivor
colorado springs, colorado
3 years ago
Verified Buyer
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Good so far
Good so far. On the first one I got a little weeping from the top plastic cap. Instructions indicated that may happen but I recall it being vague.
JR3 Home Performance
Amsterdam NY
7 years ago
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