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3/4" 174A Relief Valve w/ Flood Sensor Connectivity (30 psi)
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$234.53 each
In Stock
Get 39 Tue, Jun 23
Order by today, receive Tuesday
MANUALS (4)
This item replaces: 0274428
Non-Potable Water Applications
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This product does not comply with the “Safe Drinking Water Act,” which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.
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Easy Returns No restocking fee for 90 days
Product Highlights
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3/4"
30 psi
Bronze
Threaded Connection
Female Thread Type
250°F Max
Description
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This pressure relief valve has a 3/4 inch NPTF female inlet and outlet and a 30 psi pressure relief setpoint. The valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features a bronze body, non-metallic disc-to-metal seating, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. Sensor activation requires purchase of an activation kit which can be connected to existing building management systems or the Watts Cellular Gateway.
Features:
Features:
- Features a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve
- Requires purchase of activation kit to activate sensor
- Bronze body
- Automatic reseating
- 6 Inch coated thermostat length
- Non-mechanical seat to disc alignment
- Set pressure: 30 psi
- Body Material: Bronze
- Inlet Connection Size: 3/4"
- Inlet Connection Type: Female Threaded
- Inlet Thread Type: NPTF
- Lead Free: No
- Maximum Working Pressure-PSI: 20
- Outlet Connection Size: 3/4"
- Outlet Connection Type: Female Threaded
- Outlet Thread Type: NPTF
- Part Number: F274428
- Pressure Relief Setting-PSI: 30
- Series: 174A
Specs
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| Capacity: | 650000 BTU/hr |
|---|---|
| Application: | Heating |
| Pressure Set Point: | 30 psi |
| Size: | 3/4" |
| Material: | Bronze |
| Connection Type: | Threaded |
| Thread Type: | Female |
| Temperature Range (F): | 250°F Max |
| ASME: | Yes |
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Product Reviews
4.83 out of 42 reviews
100% would recommend this product
5 star
83%
4 star
17%
3 star
0%
2 star
0%
1 star
0%
Showing 1-10 of 42 reviews
Best price around
Watts is the best brand name Supply House ships quickly at a low price point plenty of stock on hand
Sully
Braintree MA 02184
4 months ago
Verified Buyer
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Perfect match
We have always had a great experience with Supplyhouse. We have purchased quite a few products from them from HVAC parts to psv's for our boilers. Always receiving the correct parts.
Bob
Boulder Colorado
6 months ago
Verified Buyer
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i would use Supply House again
it was a perfect fit my tech has had no complaints.
DH
Denver Co
2 years ago
Verified Buyer
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I would buy this product again. We have several in use.
Perfect match for our small boiler system.
Bob
Boulder Colorado
2 years ago
Verified Buyer
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I would but this product again
Exact product I needed for my boiler
EB
New York
2 years ago
Verified Buyer
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I would buy from supply house again
Just what I needed and at a good price.
.
.
3 years ago
Verified Buyer
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Just as described, arrived quickly, and works as intended
Had a leaky relief valve. Replaced and new one no longer leaks.
Rob
Maryland
5 years ago
Verified Buyer
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quite satisfied
Excellent service
Hugh
Colorado
5 years ago
Verified Buyer
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A bit pricey, but an exact replacement. Easy fix.
Old PRV was leaking about a teaspoon of water a day. I had some doubts whether a new PRV would eliminate the drip. Studied the system, figured out which valves to close, and went to work. 45 minutes later, it was fixed. Drip leaks are gone. System pressure is consistent and at a good level. Saved some cash and can now do the job in a half hour.
GMZ
44255
5 years ago
Verified Buyer
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Pressure relief valve
Great value
Rene
Maryland
5 years ago
Verified Buyer
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Product Q&A
4 Questions4 Questions
Q: can this valve be mounted either horizontally or vertically ?
Asked by 122JG 8 years ago
Add your answer
Verified Reply- Supplyhouse StaffYes, it can be mounted horizontally or vertically but Watts states "Important: A relief valve functions, in an emergency, by discharging water. Therefore it is essential that a discharge line be piped from the valve in order to carry the overflow to a safe place of disposal. The discharge line must be the same size as the valve outlet, and must pitch downward from the valve." You can refer to Watts website and on their support page under Temperature and Pressure (T&P) relief valves they have instructions and diagrams.
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Q: can the 3/4 174a relief valve(30lb.)be installed on any btu/hr. boiler but not to exceed 650,000 btu/hr.?
Asked by reddog 12 years ago
Add your answer
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Yes. That 650kBTU limit is just where the boiler size dictates a larger outlet for the Pressure Relief Valve (PRV) connection. In other words, don’t put a reducer on your 1-inch PRV connection just so you can save a few bucks by using a ¾-inch PRV.
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Q: my current valve (same as pictured) is still leaking at approx 30 psi. I just changed the expansion tank which I believe was bad (was leaking water out of the schrader valve). Are these valves adjustable so that it will not leak, or should I just replace it? Also, can the problem be the Pressure Reducing Valve?
Asked by Pete 16 years ago
Add your answer
Verified Reply- PexSupply StaffThere is no adjustment on this valve. Your pressure reducing valve should be set around 12-25 PSI.
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- Tom
This valve is designed to open up at 30# water pressure. NOT adjustable. Look at the feed valve for your problem. If yours is circulated hot water, it should operate at around 20#. Sounds like the feed valve (fresh water supply to system) is charging your system to at or near water line pressure.
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Q: IS there a re-build kit available for this valve?
Asked by Eric 16 years ago
Add your answer
Verified Reply- PexSupply StaffAccording to the manufacturer, there is not a re-build kit available.
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