Automatic Air Vent Valve 1/2

Parameters of Automatic Air Vent Valve 1/2

Pressure safety relief valves are typically used for controlling pressure on boilers in heating systems.

Additional information


Brass, C37700, CW617N


Sand blasted


1", 1/2", 3/4"

Thread connection


Working pressure

16 bar



Lead time:

45 days


24 months

Details about Automatic Air Vent Valve 1/2

Automatic Air Vent Valve


  • Size: 1/2 “,3/4″,1”
  • Construction Material (Plumbing):  Brass
  • A brass vertical automatic exhaust valve is used to automatically exclude various gases in hot and cold water piping systems, pressure vessels, and central air conditioning while preventing water overflow and the collection of air in the pipeline and obstructing water flow. The working medium is water, the nominal pressure is 1.6MPa, and the working temperature is -10℃≤ t ≤120℃
  • An Automatic Air Vent Valve may be the solution you’re looking for. This innovative product is designed to automatically open and close, depending on the temperature of your environment. It can reduce energy consumption by ensuring that airflow remains consistent regardless of external temperatures or changes in air pressure. It can also ensure better indoor air quality because it maintains a steady humidity level in a room or building. In addition, it eliminates the need for manual operation and provides convenient control over ventilation needs.
  • In the complex world of plumbing and HVAC systems, the Automatic Air Vent Valve stands out as a hero, albeit an unsung one. This guide delves into the fundamentals of this essential component, aiming to shed light on its significance and functionality.The Basics:
    As the name suggests, an Automatic Air Vent (AAV) Valve automatically releases trapped air within closed systems. This simple yet effective mechanism ensures that the system runs efficiently by eliminating any air that may impede fluid flow or cause noisy operation.

    Construction and Design:
    Typically crafted from corrosion-resistant materials such as brass, the AAV features a float mechanism. When the system fills with water, the float rises, closing the vent. As air accumulates, the float drops, opening the vent and allowing the air to escape.

    The AAV ensures smooth operation commonly found in heating and cooling systems, hydronic radiators, and even some high-capacity industrial setups. Its primary function is to improve energy efficiency and system longevity by preventing air-related issues like corrosion or impaired heat transfer.


    • Efficiency Boost: By preventing airlocks, the system doesn’t have to work as hard, translating to energy savings.
    • Prolonged System Life: By ensuring a consistent flow, wear and tear on the system components are minimized.
    • Noise Reduction: Have you ever heard those pesky, gurgling sounds from your radiator or pipes? An AAV can significantly reduce such noises by eliminating trapped air.

      air vents
      Air vents

    What is an Automatic Air Vent Valve?

    An Automatic Air Vent Valve, also known as an AAV, is a type of valve used to control and regulate airflow in sealed systems. Commonly found in plumbing and heating applications, this device helps maintain pressure levels within the system by releasing air bubbles that have become trapped. This type of valve works by sensing changes in pressure within the system and automatically opening or closing accordingly.

    The main benefit of using an Automatic Air Vent Valve is its ability to reduce maintenance requirements. By keeping pressure levels even throughout the system, residual moisture and sediment will not accumulate, which can cause problems with clogs or blockages that require regular cleaning. Additionally, it prevents excessive build-up of air pockets, which can cause inefficient operation or even complete breakdowns if left unchecked. As such, these valves are essential for maintaining proper functionality over long periods without frequent maintenance checks.


    The advantages of using Automatic Air Vent Valves are becoming increasingly popular for their convenience and cost-effectiveness. These devices offer a range of advantages that make them indispensable for various uses. From preventing pressure build-up in pipelines to ensuring optimal water flow, here are some key benefits of using automatic air vent valves. First, these valves are designed to release excess air from pipes or tanks automatically when needed. This helps reduce the chances of dangerous pressure build-up, leading to equipment failure and possible injury. Automatic air vent valves also help prevent stagnation in water systems by allowing trapped air bubbles to escape at regular intervals. This improves the overall efficiency of a system by preventing inconsistent pressure or flow rates due to an accumulation of air pockets in the pipes.

    How to Install an Automatic Air Vent Valve

    The automatic air vent valve is essential to many heating, ventilation, and cooling systems. Installing one correctly can help protect your home from the dangers of air pressure build-up and ensure optimal performance of your HVAC system. Here’s a quick guide on how to install an automatic air vent valve. First, you’ll need to identify the right location for installation and ensure it is accessible. Ensure the area around the proposed installation site is clear of debris so there are no obstacles when installing the unit. Next, you’ll want to cut a hole in the pipe where you plan to install the valve, allowing easy insertion of your new team into place. Types: Different Types Available Automatic air vent valves are a vital component in many piping systems, regulating the flow of air and preventing costly damage. These valves are available in different styles, each with advantages and disadvantages. To ensure you choose the right type for your project, it’s essential to understand the available types.One common type is a pilot-operated valve that uses a pressure differential between its two ports to open and close. This type is beneficial when there are frequent changes in system pressure due to its fast response time. Another popular option is an electric-actuated valve, which uses an electric solenoid to control airflow. This type is often used in large-scale projects because it can be easily programmed and offers higher accuracy than manual options.

    Maintenance: Cleaning & Servicing Requirements

    An automatic air vent valve is an important component of any home’s plumbing system, ensuring the efficient flow of water and helping to maintain proper pressure within the pipe network. However, regular maintenance and cleaning are required for this device to work correctly. Fortunately, these servicing requirements are relatively straightforward and do not require extensive knowledge of plumbing or hydraulics.

    To clean your air vent valve effectively, use a soft cloth or brush to remove any debris from the surface and crevices of the unit. Additionally, look for signs of corrosion; if you notice anything suspicious, it’s best to seek professional assistance to prevent further damage. Finally, ensure that the filter screen on top of the valve is straightforward by using compressed air to blow away any dirt or dust that may have accumulated over time.

    Installation and Maintenance:

    While installing an AAV is straightforward, it’s crucial to position it at the highest point in the system where air tends to accumulate. For maintenance, occasional manual venting or cleaning may be required to remain clog-free and functional. The Automatic Air Vent Valve might seem like another component in a vast system, but its role is pivotal. Understanding its function and ensuring proper maintenance can significantly enhance the performance and lifespan of their heating or cooling systems.


    The Automatic Air Vent Valve concludes that it is a handy tool for controlling air pressure in systems that rely on a closed system. It effectively maintains pressures, ensures safety, and allows for efficient operation. The Automatic Air Vent Valve has revolutionized the industry with its effectiveness and reliability.

    This valve does not require manual input or maintenance, as it can operate autonomously without supervision. The device’s design allows for easy installation, saving time and money. It also has proven to be durable due to its corrosion-resistant material construction, making it a great long-term investment. With all these benefits combined, the Automatic Air Vent Valve truly stands out as one of the top solutions for air pressure control in today’s market.

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 ball Valve is with CW617N and Lead-free original brass. And water flows with 2pc full Port 400WOG and 600WOG standard to design it with heavy-duty. EPDM and NBR sealing washers are environmentally friendly, with Three years warranty with traceability.

Woman's hand closes the valve. Saving Water Consumption Concept
  •  Plumberstar Valve Made from brass and stainless steel 304, and sourcing HPVC ball valve
  • Connected from the thread with BSP(G) and NPT by the normal.
  • Size with MaleXFemale 1/4inch,3/8 inch,1/2inch,3/4,1inch,1 inch,1-1/4 inch,1-1/2 inch,2inch,2-1/2inch,3inch and 4inch.
  • The actuator of electric valve voltage 24V DC and 230V AC
  • Shut-off needle valve can manufacture based on requirements
  • Heating floor manifold with 1-inch gauge and flowmeter
  • Brass nipple, elbow, extension, compression fitting, adapter available

Plumberstar Valves Applications

y drain strainer

Y-filter Strainer Drain Valve

Plumberstar Y filter strainer Keeps Working, and dirty Out Strainer screen catches debris and sediment to reduce maintenance. Protect your water plumbing. Y Type Strainer works in conjunction with your backflow preventer and regulators.

water tanker safety valve

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.

thermostatic valve pump mix water control

Temperature Mixing Valve

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

radiant pex manifold 12 connector adaptortubing

PEX Heating Manifold

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.

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.

Play Video about torsion data

We boast 15 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.
Brass fittings are made of lead-free and CW602N for durability and corrosion-resistant quality and performance.

brass fitting machine

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

working of a gas shut off valves

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

Design Valves For House

Valve Project Designing

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

project discussion

Plumbing Control Proposal

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

Fix ball Valve

Fluid Control Installation

We can provide an installation guide and tutorial about valves and underfloor heating manifold

loading container

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.

An Instant Quote With Specific

There are 5 engineers and 15 experts about QC&QA behind your projects

Why Choose Plumberstar?

Brass is a highly durable material for valves that can withstand temperatures and pressure. It is also corrosion-resistant, making it an ideal choice for wet environments. Brass valves are also easy to clean, an important consideration for plumbing systems. We manufacture brass valves, which are two-piece brass ball valves with 600 and 400-WOG threaded ends that are not for use in potable water.

Let's discussion your upcoming water control parts?

Simply describe your request and details; our feedback within 24 hours

Get quote Now

Free Sample with OEM

× How can I help you?