Copper Relief Valves

Copper relief valves are perfect for applications that require a stable and accurate flow of fluid. They come in many different styles and sizes, making them ideal for a variety of purposes. Copper relief valves can be found in industries such as chemical, oil, gas, food processing, water treatment, mining and power generation.

Top Products

Best Overall

Why We Like

  • Relief Valve
  • Bronze Body
  • Brass and Stainless Steel Internal Parts
  • Silicone Seat Disc
  • Pressure Regulating valves

Minor Problems

  • It may leak.
Editor's Choice

Why We Like

  • Self-closing temperature and pressure relief valve
  • Copper alloy body
  • NPT male inlet, NPT female outlet connections
  • Test lever and extension thermostat

Minor Problems

  • The valve might not last long.
Best Value

Why We Like

  • Wide Application
  • High precision pressure reducing valve
  • Quick respond

Minor Problems

  • The valve might not fit the water pressure.
1/25
Cash Acme 18821 0150 Temperature and Pressure Relief Valve, NCLX-5L, 3/4 Inch
9.7
Based On 324 Reviews
  • Easy to use
    9.9
  • Value for money
    10
  • Customer support
    9
  • Overall satisfaction
    9.7

Pros

  • Relief Valve
  • Bronze Body
  • Brass and Stainless Steel Internal Parts
  • Silicone Seat Disc
  • Pressure Regulating valves

Cons

  • It may leak.
2/25
Watts LF100XL Lead Free Temperature and Pressure Relief Valve for Water Heaters and Hot Water Storage Tanks, Copper Alloy, 3/4 inch
9.3
Based On 204 Reviews
  • Easy to use
    9.7
  • Value for money
    9.1
  • Customer support
    9
  • Overall satisfaction
    9.5

Pros

  • Self-closing temperature and pressure relief valve
  • Copper alloy body
  • NPT male inlet, NPT female outlet connections
  • Test lever and extension thermostat

Cons

  • The valve might not last long.
3/25
Water Pressure Regulating Valve, DN20 G3/4inch Brass Water Pressure Reducing Valve 3/4 Adjustable Pressure Reducing Valve 1/2 Inch Thread Water Pressu
7.2
Based On 132 Reviews
  • Easy to use
    7.8
  • Value for money
    6.3
  • Customer support
    7
  • Overall satisfaction
    7.6

Pros

  • Wide Application
  • High precision pressure reducing valve
  • Quick respond

Cons

  • The valve might not fit the water pressure.
4/25
New 1/2
9.5
Based On 61 Reviews
  • Easy to use
    9.7
  • Value for money
    9.7
  • Customer support
    9
  • Overall satisfaction
    9.5

Pros

  • ASME Approved
  • Made in the USA
  • Measuring 0.850" outside thread diameter
  • 200 PSI, 363 CFM
  • 1/2" male NPT

Cons

  • It might be too small.
5/25
Cash Acme - Shark Bite 15836A-0150 Temperature & Pressure Relief Valves, 150 PSI, Copper
9.6
Based On 54 Reviews
  • Easy to use
    9.9
  • Value for money
    9.6
  • Customer support
    9
  • Overall satisfaction
    9.7

Pros

  • Package Length: 7.5 inches
  • Package Width: 2.1 inches
  • Package Height: 1.4 inches

Cons

  • The valve might not work well.
6/25
Camco 10427 3/4
9.7
Based On 36 Reviews
  • Easy to use
    10
  • Value for money
    9.7
  • Customer support
    9
  • Overall satisfaction
    9.9

Pros

  • Relieves pressure up to 150psi and/or 210˚F
  • 3/4" inlet/outlet
  • 3-5/16-inch long shank
  • Copper alloy body

Cons

  • It might not fit your needs.
7/25
Zurn Wilkins 1/2

Zurn Wilkins 1/2" NR3XL Pressure Reducing Valve

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9.1
Based On 26 Reviews
  • Easy to use
    9.3
  • Value for money
    9.8
  • Customer support
    8
  • Overall satisfaction
    9.1

Pros

  • Integrated strainer
  • Direct acting integral by-pass design
  • Low inlet pressure to lower outlet pressure

Cons

  • The valve might not work properly.
8/25
3/4 in Lead Free Tankless Water Heater Valve Set, Female Pipe Thread, Hot and Cold Valve Set No Spring Check, 150 psi Relief Valve
8.6
Based On 24 Reviews
  • Easy to use
    8.6
  • Value for money
    9.5
  • Customer support
    8
  • Overall satisfaction
    8.4

Pros

  • Replaces most fittings and connections used in typical tankless water heater installations
  • Lead-free construction
  • Copper silicon alloy bodies
  • Full-port, quarter-turn ball valves with color-coded tee handles and unions
  • 3/4 FPT connections

Cons

  • It might not be durable.
9/25
SEA TECH (0556000 3/4
8.8
Based On 17 Reviews
  • Easy to use
    8.6
  • Value for money
    10
  • Customer support
    8
  • Overall satisfaction
    8.4

Pros

  • Pressure relief valve
  • Temperature relief valve
  • Stainless steel spring
  • Thermostat is positive, accurate and proven
  • All brass body

Cons

  • It may burst.
10/25
Watts LF530C-3/4 Lead Free Calibrated Pressure Relief Valves 3/4-Inch Adjustable
8.0
Based On 16 Reviews
  • Easy to use
    8.0
  • Value for money
    9.2
  • Customer support
    7
  • Overall satisfaction
    7.8

Pros

  • Cast brass construction
  • Protects against excessive pressure build up
  • Use with type M hard-temper copper tubing
  • Indoor or outdoor use
  • Maximum Pressure: 300psi (20.67 bar). Adjustable Pressure Ranges: Sizes 1/2, 3/4-Inch - 50 to 175psi (3.45 to 12.06 bar), Size 3/4-Inch - 100 to 300psi (6.89 to 20.67 bar)

Cons

  • They might not be accurate.
11/25
Kingston 103SS-2-175 1/4
9.8
Based On 2 Reviews
  • Easy to use
    10
  • Value for money
    10
  • Customer support
    9
  • Overall satisfaction
    10

Pros

  • Inlet Size: 1/4"
  • Pressure Range: 0-175 PSI
  • Maximum temperature 250 F
  • Fit for many models

Cons

  • It might not work with certain parts.
12/25
Zurn Wilkins 1
9.8
Based On 1 Reviews
  • Easy to use
    10
  • Value for money
    10
  • Customer support
    9
  • Overall satisfaction
    10

Pros

  • Short lay length
  • Compact design
  • Cartridge-loaded design
  • Strainer screen for easy cartridge changes
  • Quality integral stainless steel strainer

Cons

  • It may be hard to connect the valve.
13/25
Relief Valves R410A Refrigerant Charging Valve Opener Fluoride Tools,1/4'' 5/16'' Copper Flow Control Valves (R410A)
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Adopts the most commonly used British system refueling pipe connector 1/4 - 5/16
  • Install on the end of a charging hose to minimize refrigerant loss during servicing
  • 100% SATISFACTION GUARANTEE - We are confident in our products and stand behind them 100%. Just return it for a full refund

Cons

  • The valve might not open.
14/25
Copper Relief Valve Assembly,Ball Lock with Gauge Adjustable Relief Valve Assembly 0-15psi (0-1bar) Brewing Equipment,Adjustable Pressure Relief Valve
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Fits many models
  • High quality copper material
  • Adjustable

Cons

  • The price is too high.
15/25
Fdit Durable Ball Lock with Gauge Copper Adjustable Relief Valve Assembly 0-15psi (0-1bar) Home Brewing Equipment
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Made of copper material
  • Relief valve can be adjusted to release pressure from 0-15psi
  • Can also be used to release the pressure in a keg when filling or filtering
  • Most commonly used to regulate and release pressure on a pressure capable fermenter

Cons

  • The ball lock might not work well.
16/25
Thermal Expansion Relief Valve For PEX, Copper, and CPVC - 3/4
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Push connection
  • Copper, CPVC, and PEX pipes compatible
  • Made of lead-free brass
  • Operates at 200 PSI (pounds per square inch)
  • Free roll of PTFE tape included

Cons

  • It may not fit all plumbing.
17/25
ZEFS--ESD Solenoid Valve Boiler Valve 1 Inch DN25 Exhaust Safety Pressure Relief Valve and Pressure Gauge Boiler Safety Components Valve Accessories
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Improved Formula
  • Easy to use wax
  • Long lasting wax protection
  • Amplifies reflection
  • Fits many models

Cons

  • It might not be very durable.
18/25
Lifyn2 Electromagnetic Valve Brass Boiler Valve 1 Inch DN25 Exhaust Safety Pressure Relief Valve and Pressure Gauge Boiler Safety Components Valve def
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • 1 inch caliber
  • 3bar pressure relief value
  • Fits many models

Cons

  • It may leak.
19/25
Ball Lock with Gauge Adjustable Relief Valve Assembly 0-15psi (0-1bar) Brewing Equipment, Convenient to Use
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Relief valve
  • Copper material
  • Sturdy, durable and long service life

Cons

  • It might not have a good seal.
20/25
YOOWEE ST-4 Safety Pop Off Valve for Excel LSV-5238 Ref # Bendix 131081 Cummins 3559097 3403479 Mack 691GC224 Pressure Relief Valve 250 PSI, 1/2
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Safety pop off valve
  • Function: Used on Tu-Flo 550 and 750 compressors for Bendix
  • Material: High quality brass

Cons

  • It might not work with certain machines.
21/25
Relief Valves, Air Pressure Regulator Good Sealing with Gauge for Regulation(1in)
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Sealing
  • Accuracy
  • Control Valve
  • Good Material

Cons

  • The valve might not be durable.
22/25
Air Pressure Regulator Relief Valve 0.05‑0.8MPa Pressure Valve with Gauge -5~60℃(3/8in)
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Easy to use
  • Long lasting protection
  • Pressure resistant
  • Good material

Cons

  • It is hard to find.
23/25
ST-4 Safety Pop Off Valve Pressure Relief Valve for Excel #LSV-5238 Ref # Bendix 131081 Cummins 3559097 3403479 Mack 691GC224,1/2
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • Compatible with Tu-Flo 550 & 750 compressors for Bendix
  • Direct replacement for Mack 691GC224, Bendix 131081, Cummins 3559097 3403479
  • Pressure setting--250 PSI
  • Superior material - copper

Cons

  • Some people might find it difficult to open.
24/25
nannanmaoyijituan Boiler Valve 1 Inch DN25 Exhaust Safety Pressure Relief Valve and Pressure Gauge Boiler Safety Components
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • 1 inch
  • 3bar pressure relief value
  • Fit many models

Cons

  • It might leak.
25/25
Solenoid Valve Boiler Valve 1 Inch DN25 Exhaust Safety Pressure Relief Valve and Pressure Gauge Boiler Safety Components
0.0
Processing Reviews
  • Easy to use
    0.0
  • Value for money
    0
  • Customer support
    0
  • Overall satisfaction
    0

Pros

  • DN25
  • 1 inch
  • 3bar
  • Pressure relief value

Cons

  • It may be too small.

Authors

Michael Gordon
Michael Gordon— Author

Michael Gordon is a writer on our Website. He is experienced in Hydraulics, Pneumatics & Plumbing section.

What to Look to have the Best Copper Relief Valves?

What are the three types of relief valves?

Relief valves are typically classified by how they relieve pressure: conventional, balanced, and pilot-operated. Conventional relief valves work when pressure increases; Balanced relief valves act as a shock absorber and maintain constant pressure until relieved by the valve; Pilot-operated relief valves have a movable check ball to monitor and maintain preset pressure.

It is important to choose the right type of valve for your application in order to ensure proper function and longevity

How often should relief valves be replaced?

Properly inspecting the relief valves regularly can help identify problems before they develop. Replacement of a PRV is required every 4-5 years, depending on usage and age of the valve.

The cost for repair varies, but typically ranges from around $50-$150 per valve replacement

Are all hot water relief valves the same?

Before you make a purchase, be sure to confirm the valve's capacity rating. Higher-pressure relief valves are typically used in systems with higher pressure levels; they can protect your plumbing system.

In addition, some homes may have an additional "T&P" (temperature and pressure) relief valve installed in plastic piping for even greater protection.

What are relief valves used for?

Relief valves are essential for controlling pressure in various systems and can prevent system failures. They come in different shapes and sizes, and can be installed on a variety of systems including water pipes, air lines, oil pipelines and power plants.

3. relief valves protect equipment from overpressurized conditions by regulating the flow of fluid

What are two types of relief valves?

There are two types of relief valves- automatic and one-time. Automatic relief valves open when the pressure in a system reaches a certain level, while one-time relief valves only work once they're activated by accident or malfunctioning.

Both have their own benefits and drawbacks, so it's important to choose the right type for your needs

Why do boilers have 2 safety valves?

A boiler needs a safety valve in order to prevent pressure from building up and causing an accident. The safety valve prevents overpressure accidents, which can damage the machine and potentially save other parts of it from collapsing.

When the valves close, it reduces the amount of pressure that's applied on other components, helping to avoid any potential issues

How much does it cost to change a PRV valve?

The cost to change a PRV valve can vary depending on the type of valve and where it is installed, but usually professional installation is cheaper than doing it yourself.

DIY installations may be possible, but they can cost more than hiring a professional. Replacement valves range in price from around $50 to over $350

Can you repair a pressure relief valve?

If your pressure relief valve has lost its seal, unscrew it and replace it with a new one. Before you install the new valve, wrap Teflon tape around the threads of both valves to prevent them from coming loose during use.

Route the overflow pipe opening away from the tank so that water doesn't enter when the relief valve is activated

What type of water valve should be installed on a water heater?

A ball valve should be installed on a water heater in order to provide the proper level of flow for different needs, such as main water shutoffs and branch line shutdowns.

There are many types of ball valves available on the market today, each with its own unique features and benefits that make it ideal for specific applications. Ball valves are reliable valves that are commonly used in many applications, making them a good choice for your water heater installation project.

What PSI should a pressure relief valve be?

A pressure relief valve is a safety feature that lower limit is determined by the maximum operating pressure, or 15-psig, whichever is greater, above the max operating pressure.

The relief valve should be installed at a location where it can safely release excess air in case of an emergency situation. Lowering the PSI on your equipment will help prevent damage from occurring and ensure proper function of your equipment

Where should a relief valve be installed?

A relief valve is used to redistribute pressure and should be installed close to the tank on the cold water line. Relief valves are important for safety, so make sure you install them in the right places.

Keep an eye out for relief valves when shopping for your home's plumbing system

Where should a pressure relief valve be used?

A pressure relief valve is used to relieve pressure on systems where critical operations depend upon smooth operation. They can be installed in a variety of locations, depending on the specific application.

The types of materials that can use a pressure relief valve include oil, gas, water and steam.

Why do I need a pressure relief valve?

A pressure relief valve is a safety precaution to avoid serious injuries from too much water pressure. Installing a PRV in your home can prevent costly damage and loss of property.

Always use caution when working with high water pressures - having a PRV installed will help protect you and your belongings

Conclusion

Copper relief valves are used in water systems to release pressure, and can become blocked over time. When this happens, the valve will need to be replaced in order to restore functionality. There are a few ways you can check if your copper relief valve is causing problems: by checking for leaks, determining if the valve opens/closes properly, or through an inspection of the actual assembly. If it’s determined that the copper relief valve is causing issues with your system, then it will need to be replaced.