#1 Home Improvement Retailer

Internet # 205149183

Model # 1/2 LF530C

Store SKU # 1000321736

Loading Recommendations

1/2 in. Lead Free Brass Pressure Relief Valve

Apply Now
Pay $5.38 after $25 OFF your total qualifying purchase upon opening a new card. info
Apply for a Home Depot Consumer Card
  • Provides an adjustable pressure relief range of 50 - 175 PSI
  • Prevents pressure build-up in systems with water, oil or air
  • Perfect for contractors and homeowners
  • View More Details
Store
0 in stock
icon
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy
Product Details

About This Product

This 1/2 in. lead free calibrated pressure relief valve has an adjustable pressure relief range of 50 to 175 psi. It is designed for use as protection against excessive pressure build-up in systems containing water, oil, and air. It is an excellent choice for both contractors and homeowners.

Highlights

  • Lead free brass body construction
  • All stainless steel spring
  • Adjustable pressure range 50 to 175 psi
  • Maximum temperature 180°F
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 205149183

Model # 1/2 LF530C

Store SKU # 1000321736

Specifications

Dimensions: H 3.75 in, W 1.44 in, L 1.44 in

Dimensions

Inlet Diameter (In.)

1/2

Outlet Diameter (In.)

1/2

Product Height (in.)

3.75 in

Product Length (in.)

1.44 in

Product Width (in.)

1.44 in

Details

Application

Air, Oil, Potable Water

Compatible Pipe Material

Brass

Connection

Male Pipe Thread

Features

Lead Free

Indoor/Outdoor

Indoor

Material

Brass

Maximum Pressure (PSI)

300 PSI

Maximum Working Temperature (F)

180

Pack Size

1

Product Weight (lb.)

0.35 lb

Returnable

90-Day

Valve Type

Pressure Relief

Warranty / Certifications

Manufacturer Warranty

1 year

Questions & Answers

9Questions
caret
Q:Minimum relief presure
by|Feb 17, 2023
1 Answer
Answer This Question

A:  The set pressure range is 50 to 175psi.

by|Mar 1, 2023
    caret
    Q:How do I determine whether I have a faulty valve or not without have plumber come out test my water pressure? Seems like a simple mechanism but other reviews have stated that they have had faulty pressure relief valves
    by|Dec 13, 2019
    1 Answer
    Answer This Question

    A:  Hello, I would recommend having a professional check to be safe. Best, Watts team

    by|Oct 19, 2022
      caret
      Q:Does it affect the working of the valve if I reduce my line from 3/4 inch to 1/2 inch to work with this valve?
      by|Sep 10, 2019
      3 Answers
      Answer This Question

      A:  Hi Sam, This will not affect the valve - a 1/2 in. line will work with this 1/2 in. valve. Best, Watts team

      by|Sep 25, 2019

        A:  I suspected it might alter the pressure function. Thanks!

        by|Sep 11, 2019

          A:  Yes it will. The pressure changes when you reduce the pipe size. It is advised to use 1/2” with a 1/2” line and 3/4” with 3/4” line

          by|Sep 11, 2019
            1 found this answer helpful
            caret
            Q:how do I properly set the press ?
            by|Nov 1, 2018
            1 Answer
            Answer This Question

            A:  You turn the dial adjustment marked with black line and LBS pressure setting either clockwise for higher or counterclockwise for lower pressure to the pressure setting you want the valve set at.

            by|Jul 19, 2020
              1 found this answer helpful
              Showing 1-4 of 9

              Customer Reviews

              4.5 out of 5

              • 4.5 out of 36 reviews
              • 77% recommend this product
              Filter by:
              Showing 1-10 of 36 reviews
              worst expansion valve
              I had my original valve (non adjustable) for 12 years and start leaking. I replaced with this valve by a professional that last 3 months before start leaking. I bought two from Home Depot and that too start leaking after about 2 months each. What a piece of junk.
              by
                Works as expected. Hooked it up per instructions as an supplementary water system pressure relief device. I also have a Thermal Expansion Tank installed on my 50 gallon water heater. The pressure relief valve at the water heater comes preset at 150psi. I set this pressure relief valve at 80 psi to maintain an average water system pressure at my home around 55 - 60 psi using a stem-type water pressure regulator. I checked and verified that only minimal amount of water (less that a pint) is drained away at my 80psi setting.
                by
                • Verified Purchase
                by
                • Verified Purchase
                by
                • Verified Purchase
                by
                • Verified Purchase
                Rating provided by a verified purchaser...
                Rating provided by a verified purchaser
                by
                • Verified Purchase
                Perfect fit. Easily adjustable only the reverse of what...
                Perfect fit. Easily adjustable only the reverse of what I am used to.
                by
                • Verified Purchase
                Much needed for my tankless water heater...
                Much needed for my tankless water heater
                by
                • Verified Purchase
                Rating provided by a verified purchaser...
                Rating provided by a verified purchaser
                by
                Response from WattsWaterMar 26, 2021
                Hello,

                Thank you for your positive review! We are happy to hear that this product met your expectations. Please feel free to reach out if you have any questions, our team will be happy to help! Watts
                • Verified Purchase
                The valve was a exact replacement for the old temperature...
                The valve was a exact replacement for the old temperature relief valve and was easy to adjust to the to turn to the 150 psi setting which equals a temperature of 212 degrees.
                by
                • Verified Purchase
                Showing 1-10 of 36 reviews

                Compare Similar Items

                current item

                Connection

                Male Pipe Thread

                Male Pipe Thread

                MIP x FIP

                Inlet Diameter (In.)

                1/2

                3/4

                3/4

                Maximum Pressure (PSI)

                300 PSI

                150 PSI

                175

                Maximum Working Temperature (F)

                180

                210

                210

                Application

                Air, Oil, Potable Water

                Potable Water

                Potable Water