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💧 Elevate your system’s flow with Watts — where durability meets precision.
The Watts TB1156F is a high-capacity, 1/2-inch bronze water feed regulator designed for commercial and residential hydronic heating systems. Featuring union threaded inlet/outlet connections, a tight seating check valve, manual purge lever, and stainless steel strainer, it ensures consistent water pressure up to 100 psi and temperatures up to 212°F. Built for longevity and corrosion resistance, this regulator delivers reliable performance and easy maintenance backed by Watts’ 150+ years of water technology expertise.
| ASIN | B0009356XY |
| Best Sellers Rank | #102,146 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,475 in Pipe Fittings |
| Brand | Watts |
| Brand Name | Watts |
| Color | Bronze |
| Connector Type | Union |
| Customer Reviews | 4.7 out of 5 stars 63 Reviews |
| Exterior Finish | Bronze |
| Global Trade Identification Number | 00098268023060 |
| Included Components | 1 Valve |
| Item Dimensions | 6.31 x 4.5 x 2.63 inches |
| Item Type Name | Count |
| Item dimensions L x W x H | 6.31 x 4.5 x 2.63 inches |
| Manufacturer | Watts |
| Manufacturer Part Number | 0386421 |
| Material | Bronze |
| Material Type | Bronze |
| Model Number | TB1156F |
| Number of Pieces | 1 |
| Size | 1/2 inch |
| Thread Size | 0.5 inch |
| Thread Type | NPT |
| UPC | 098268023060 |
| Unit Count | 1.0 Count |
R**D
Works as it should
High-end replacement that works as I knew it would. These last for years and years the one I replaced was well over 10 years old.
W**O
Perfect replacement
I replaced the exact model of pressure reducing valve and everything is working fine
O**R
Install it and you will find out whether the unit works or not.
I find out you have to apply water pressure to make the manual refill level works. At he beginning I move the refill level and find on resistance at all. After I install it on my boriler system and then it works. I adjusted the pressure to the mininum because the distance between the refill unit and my radator is about 8 feet.
A**R
Fits perfect
Fit perfect
D**N
Solid part
I have installesd these over the years and this one was as good as any
A**R
Very pleased. Cost was the best I found
Very pleased. Cost was the best I found, and delivery was quick. The item picture could be better, as it doesn't show the valve has a FPT union on the entry end. Didn't know for sure what was there until it arrived. Again, very pleased. Jim A.
J**O
It. Eventually worked
It said it was set at 15lbs pressure - but it was closer to 30 - I had to recalibrate it.
J**N
As described
Perfect fit
Trustpilot
2 weeks ago
2 weeks ago