Brass Pressure Relief Valve

Parameters of Brass Pressure Relief Valve

The water pressure relief valve can withstand a pressure of 1.6 MPa and can be installed in front of most tap water equipment to regulate water pressure.

Additional information


CW617N, H58-3


Sand blasted and Nickel plated



Thread connection


Working pressure

1.5 bar, 3 bar, 6 bar, 8 bar



Lead time:

45 days


24 months

Details about Brass Pressure Relief Valve

Non-Return Safety Relief Valve


  • Material: Chrome Plated Brass
  • Size: 1/2″ x 1/2″ M x F
  • Working Temperatures: +100C
  • Working Pressure: 0,6 MPa (6 bar)
  • Detailed dimensions: Refer to the drawing
  • Relief Pressure: 7 Bar, 8Bar
  • It can be optional as requested; the maximum tolerance of the relief pressure is within 0.5Bar;
  • Safety anti-water backflow function to guarantee the proper working of the water heating tank; High-quality stainless steel spring ensures better working performance and also long using life;
  • Locking handle design to avoid improper operation; Nickle plated surface makes nice-looking and anti-corrosion, laser marking relief pressure and date on the body.



The Non-Return Safety Relief Valve is one of the most important safety devices in your facility, but it’s also one that many people don’t know much about. The valve is designed to protect against overpressure, backflow, and undersized piping–a significant concern for anyone running a process plant. But what happens when your NRRPV malfunctions? It can lead to unsafe operating conditions that are detrimental to you and the environment.

The valve is a device that helps protect against overpressure, backflow, and undersized piping in process plants. If it malfunctions, it can lead to unsafe operating conditions. That’s why it’s essential to know how your NRRPV works and what could happen if it doesn’t function properly.


– Overpressure in your process plant can lead to equipment failure and even an explosion

– Backflow of hazardous materials into your facility, which can contaminate your product and endanger workers

Undersized piping can cause reduced flow rates or even stoppages in your process plant.

All of these consequences can have a significant impact on your business. Not only will you face expensive repairs or replacement costs, but you may also lose production time and decrease your bottom line.

The NRRPV is a critical safety device, so it’s crucial to ensure it’s functioning correctly. If you’re unsure whether your valve is working correctly, have it inspected by a qualified technician. And if it’s not, have it repaired or replaced immediately! By taking these steps, you can help ensure the safety of yourself and your workers and keep your process plant running smoothly.

So why do you need a Non-Return Safety Relief Valve?

It helps protect against overpressure, backflow, and undersized piping in process plants. If it malfunctions, it can lead to unsafe operating conditions. That’s why it’s essential to know how your NRRPV works and what could happen if it doesn’t function properly.

The brass body is in one piece. It can be used for water tanks, boilers, radiators, and other pressure vessels. This product has a long service life and good performance.

“The pressure relief valve for water tanks. It allows the gas from the tank to escape when the pressure gets too high (e.g., due to temperature changes). This prevents damage to your water tank, which would otherwise occur if it were forced to expand rapidly.”

Brass Pressure Relief Valve is a device that relieves pressure in a fluid system. It is also known as Safety Valve, Pressure Relief Device, Safety Relief Valve, Pressure Relief Vent, and Pressure Regulating Valve. These devices are used in water supply systems and other pressurized systems to protect users from high-pressure surges or failures in the system. They are designed to open when internal pressures exceed design limits, preventing catastrophic failure of the entire plumbing system.

water pressure gauge

Metals Vavles Works on Plumbing System

Plumberstar valve fabricator in China. Our main parts for heating pipelines and intelligent water control can supply you with a one-stop basket solution to get your ideas and demands. From design to packaging and logistics are our duty—brass valves and fittings applied in-house, in industry, and commercial construction, in residential. There are related to water pipe control solution, and we have rich experience for outdoor frostproof hydrant and pex heating water manifold indoor.

The Top Standard Valves

Plumberstar, founded in 2006, offers high-quality, customizable residential valves and pipe fittings for plumbing and heating systems, including metal valves, brass products, bibcocks, and stainless steel accessories.
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Plumberstar offers brass and stainless steel 304 valves, as well as HPVC and cast iron plumbing parts. Available in sizes ranging from 1/4 inch to 4 inches with BSP(G) and NPT threads. Products include shut-off needle valves, heating floor manifolds with 1-inch gauges and flowmeters, brass nipples, elbows, extensions, compression fittings, and adapters. Custom manufacturing plumbing products is also available.

How to benefit You

Plumberstar delivers reliable, high-quality plumbing solutions with competitive pricing, extensive customization, and free pressure testing. Our ISO 9001 certified products ensure safety, efficiency, and durability, meeting international standards for residential and commercial needs.

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Mixing water valve automatic ensure temperature and water pressure stable. It is suitable for household hot water devices equipped and floor heating, so the 3-way valve meets requirements of temperature range and the water flow

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Plumberstar radiant pex manifolds are usual for residential water distribution in a household, and it's top rated in the home building industry. Manifold plumbing systems control hot and cold water that feeds flexible PEX supply lines to individual fixtures.

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Safety Water Solution

Plumberstar works in residential, irrigation, and commercial application. The relief safety valves are used in various applications, such as water heaters, air compressors, its automatic release of the excess pressure or vacuum from a heating system.

Advantages of Plumberstar

Plumberstar products design based on simple structure aim to time-saving installation for consumers and aim to save the cost of customers for building construction.

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We boast 18 years of expertise in water and gas projects and long-term partnerships with top global clients.

We offer competitive pricing, tailored solutions, and flexible solutions. Quality is our cornerstone. We conduct three random inspections and a final QC check for each project, with detailed reports for clients and a 48-hour emergency response system.

Customize-Design Brass Copper Fitting

Copper Pipe fitting 1/2 inch 90-degree Elbow, nipple, bush, and reducer connects PEX Pipe in water distribution and hydronic heating systems.
Low-cost solution to connect copper Pipe Tubing, stainless steel insert, and adapter. The connection system is perfect for your next commercial or homeowner plumbing project.

Advantages for distributer, wholesaler, Supermarket and Trading

Plumberstar is looking for long-time cooperation with partners, our advantage will benefit each other, and growing together, our extra service including design, new tooling, discount and quality tracing system.

★ Moderate Pricing – Plumberstar can provide various projects with different economic basket services. Water control project drawing design and artwork works are free. 

MOQ and Delivery – Lower MOQ even reaches 100 units and sampling time within 15 working days, and the leading time is 30 working days of mass production,

Non-Disclosure Agreement – Plumberstar will not provide your competitors with the same valves and manifolds. And help you to get more market shares.

Quality and Service–Our defect rate reached 0.459% in the last two years from customers feedback, and the Inspection report can provide you with each order

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Discount and Quantity– Heavy quantity can increase production capacity with effectiveness. And the accessories and spare parts purchased with competitive cost of valves.

Plumberstar Extra Service

Our aim is not only to provide valves but we help customers to design products,design artwork,valve proposal, book shipment,Installation tutorial

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Valve Project Designing

We are free design your valves according to your inquiry of your plumbing system,no extra cost.

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Plumbing Control Proposal

We can help you choose valves and heating manifold, and advice in house application

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Shippment Service Solution

We help customers to book a container, documents preparation, and clearance, even to warehouse

Frequently Asked Questions

Here are typical questions by customers asked with usual, please feel free contact us if any further confused.

Brass valves have many different types, such as ball valves, garden tap, check valve, strainer, angle valve, gate valve, foot valve, and drain valve. The radiator valve and thermostatic mixing valve are works for water temperature. All of these valves are work for water plumbing systems, plumbing repair, and installation. So have to let water shut-off and shut-on. Some heating systems are related to hot water and cold water mixing for temperature control and stability. Our intelligent valves are functional. There are applications in commercial, residential, and industrial areas.

Underfloor heating radiant pex manifolds are usual for residential water distribution in a household, and it's top-rated in the home building industry. Manifold plumbing systems control hot and cold water that feeds flexible PEX supply lines to individual fixtures. Then water temperature is warm and stable in each room. Meanwhile, the heating accessories-flow meter gauge will monitor water and temperature in each room.

The motorized ball valve works automatically open and closed; they work with 220v-230v AC and 24v DC; they are applications in the heating system, air conditioner,3D printer, and others. The solenoid valve is with similar features.

Would you please submit the form at the bottom of the page or send an email My WhatsApp: +86 15968648802. Can you send us pressure demands, size package, and quantity if available?

It's able to provide free samples for your evaluation with 15 working days about.

Our MOQ is significantly lower from 100-5000 pcs are available. It depends on different items.
We can fabricate your specified requirements.

It's about 35 days if with regular proucts; New tooling and samples will take 15-20 days, Normal samples will take 7 days.

It means that you need to check the plumbing system at first, then realize your requirements, and get out different valves with different applications and functional with controlling; of course, may be no need to use brass valves due to the high cost. You can use plastic, iron, zinc alloy, and aluminum raw materials instead of brass, but brass and stainless steel are reliable with 3 years warranty. If you don't know how to choose, please call us or email us.

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Choose Plumberstar for exceptional, customizable plumbing products with over 18+ years of experience. We guarantee competitive pricing, strict quality control, ISO 9001 certification, and dependable global delivery to ensure your projects meet top standards.

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