Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass
Details
- MaterialBrass
- BrandMerrill
- Exterior FinishBrass
- Inlet Connection Size0.5 Inches
- Inlet Connection TypeNational Pipe
- Outlet Connection TypeMNPT
Description
🛠️ Elevate your plumbing game with fail-safe pressure relief!
- PREMIUM LEAD FREE BRASS - Durable, corrosion-resistant brass ensures long-lasting, eco-conscious performance.
- CERTIFIED SAFETY STANDARDS - IAMPO and NSF/ANSI 372 certified for peace of mind and regulatory compliance.
- UNIVERSAL 1 2 CONNECTIONS - Seamlessly fits standard plumbing setups with male NPT and female FPT ports.
- COLD WATER SYSTEM OPTIMIZED - Specifically designed for cold water applications—avoid costly water heater mishaps.
- RELIABLE PRESSURE PROTECTION - Engineered to safeguard your cold water systems up to 75 PSI with precision.
The Merrill MFG PRVNL50 is a lead-free brass pressure relief valve designed for cold water systems, featuring 1/2" male NPT and female FPT connections, certified by IAMPO and NSF/ANSI 372, and rated for a maximum operating pressure of 75 PSI to ensure reliable, eco-friendly protection.
Specifications
| Material | Brass |
| Brand | Merrill |
| Exterior Finish | Brass |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Outlet Connection Type | MNPT |
| Maximum Operating Pressure | 75 Pound per Square Inch |
| Number of Ports | 1 |
| Outlet Connection Size | 0.5 Inches |
| Specification Met | IAMPO, NSF/ANSI 372, AB 1953 |
| Valve Type | Pressure Relief Valve |
| Manufacturer | Merrill Manufacturing Company |
| UPC | 642367450519 |
| Part Number | PRVNL50-A |
| Item Weight | 5.6 ounces |
| Package Dimensions | 8.07 x 2.52 x 1.14 inches |
| Item model number | PRVNL50-A |
| Batteries Included? | No |
| Batteries Required? | No |
Reviews
L**E
Quality and Cheaper on Amazon
I purchased this after watching a Home Depot How To Video on YouTube. They were double the price at the common hardware stores when I needed it and I couldn't find this size in stock in store. Anyway, it worked for my pressure tank tee. And it's not the cheap, made in China lightweight material. It's pretty heavy.
S**R
No issues installing
No leaks, can't comment on relief function as they never go off.
J**E
Works Well
UpdatedI thought it opened above the rated pressure of 75psi but I plumbed it to dump back into the supply line which is at 15psi. This accounts for the pump pressure relief at 90psi.I know this because the pump switch failed to shut off the pump until over 100psi.
M**E
So far, so good...
The pressure relief valve on my incoming water line was dripping slowly and steadily. After researching it (what is the thing called?), I went to my local box store to grab one. They had no idea what I was after. I used the app to find one on the shelf. They were out of stock. I turned to my reliable backup, Amazon. Two days later this little baby appeared and was installed without incident. My leak is gone. I am happy. The reason I didn't go five stars is that in some prior reviews I read about a leak developing over time. My anxiety won't allow me to go further than four stars but it is above average.
T**B
Well made
Used in our Well Water System. Valve seems to be well made and half the price of big box stores. Saved me a trip and money.
E**)
Well manufactured
Product is well made and exactly as advertised...I am praying it never has to operate..
L**B
Replacement leaked worse than the first
Bought and installed this pressure relief valve because the old one was leaking. Installed the new one, it leaked almost as bad as the old. I submitted a return, a new one was sent pretty quickly. The replacement arrived yesterday. I removed the installed one and installed the replacement. The replacement didn’t leak, it poured. I had to install the first one. Pretty disappointed with the product😕
A**R
Hope it lasts
It seems to be reasonably high-quality and built well, but for some reason these things never seem to last more than a year or two before they start leaking. Hope this one lasts.
Common Questions
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