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🛠️ Master your water system with HYDRO MASTER – pressure relief made effortless!
The HYDRO MASTER Safety Relief Valve features a 3/4 inch NPT threaded inlet and outlet, designed to release pressure at 30 PSI to protect residential hot water systems. Constructed with a durable brass body and stainless steel spring, it offers corrosion resistance and reliable performance. Easy to install and plumber-recommended, this valve fits most U.S. residential applications, ensuring safety and peace of mind.







| ASIN | B0CCJ7QZQ7 |
| Best Sellers Rank | #13,109 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Relief Valves |
| Brand | HYDRO MASTER |
| Brand Name | HYDRO MASTER |
| Customer Reviews | 4.4 out of 5 stars 88 Reviews |
| Exterior Finish | Brass , Stainless Steel |
| Included Components | Relief Valve |
| Inlet Connection Size | 3/4 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Item Dimensions | 3.2 x 1.6 x 1.8 inches |
| Item Type Name | Relief Valve |
| Item Weight | 0.45 Pounds |
| Item dimensions L x W x H | 3.2 x 1.6 x 1.8 inches |
| Manufacturer | HYDRO MASTER |
| Manufacturer Part Number | 0571101 |
| Material | Brass |
| Material Type | Brass |
| Maximum Pressure | 30 Pound per Square Inch |
| Model Number | 0571101 |
| Number of Ports | 2 |
| Outlet Connection Size | 3/4 Inches |
| Outlet Connection Type | NPT Thread |
| Size | 3/4 inches |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specification Met | CSA |
| Thread Size | 3/4 inches |
| Thread Type | NPT |
| Unit Count | 1.0 Count |
| Valve Type | Pressure Relief Valve |
J**N
Good valve and value
Accurate relief when the system is over pressure. Easy installation. Quality valve.
W**N
Plumber recommended..
So when my boiler system started leaking out of this particular valve, I was of course in the market for a new one. I never knew there were so many different manufacturers of the same item to choose from. Holy crap. On the bright side however my father-in-law has been a plumber for about 50 years and after a quick phone call in his direction I narrowed my search down to well, this one. The only thing he cautioned me on was to look at the old one before you replace it and make sure the new one has the same markings PSI etc etc, and other than that it's pretty easy. Shut off the water supply, relieve the pressure, unscrew the old one and with the use of a little bit of thread tape, screw this one on and snug it down. The whole repair took me about 4 minutes.
M**A
Good part fast delivery
Good quality fit well. Arrived timely. Thanks
B**D
Great value
Easy to install and works grest
P**E
Junk
Leaked immediately.
P**L
A savior.
Exactly what was needed to replace a failed pressure relief valve on our boiler. Of course it failed in the cold of winter. Timely delivery and was able to keep my family warm.
R**R
well made
works great. good value for the price.
V**L
he's doing a good job,
My husband doesn't do much, but he is liking how the working is.
R**S
Valvula
Buena calidad pero se hará la devolución por necesitar otra medida
P**R
Works properly
does the job
J**.
Bonne qualité
Satisfait
P**.
Valve de sûreté 30 lbs
Super, fit parfait entrée et sortie 3/4" npt. Installé sur un réservoir de plancher chauffant qui demandait 30 lbs pour la valve de sûreté.
L**R
Very good service
Received a brand new part in two days , installed it to the boiler system, works well. I highly recommend it.
Trustpilot
1 month ago
4 days ago