Double Orifice Air Valve: What Are The Benefits Of It? 

Double orifice air valve is an essential component in the fluid handling system. They are primarily designed to manage the air content in pipelines. 

Whether in water distribution networks, sewage systems, or industrial applications, controlling air pockets in pipelines is crucial. These air pockets need to be handled properly to maintain efficiency and prevent damage within the system. 

In this article, we delve into the mechanics, functionality, and key benefits of double orifice air valves.

What Is a Double Orifice Air Valve?

A double orifice air valve is a specialised type of air release valve equipped with two distinct orifices:

Small Orifice: This releases small quantities of air that accumulate during normal pipeline operation.

Large Orifice: This expels larger amounts of air, usually during the filling or draining of the pipeline.

Together, these orifices ensure that air can be managed efficiently throughout the operational cycle, preventing problems like water hammer, pressure drops, and reduced flow capacity

How Does a Double Orifice Air Valve Work? 

When pipelines are filled with fluid, they also trap air, which can accumulate at high points within the system. Air pockets can obstruct fluid flow and lead to inefficiencies or damage. The industrial double orifice air valves work by automatically detecting these air accumulations and releasing them accordingly:

Large Orifice Function: 

During pipeline filling, the large orifice allows significant volumes of air to escape until the fluid reaches the valve.

Small Orifice Function: 

During normal operation, small bubbles that collect in the pipe are vented through the smaller orifice.

In cases where a pipeline is drained or experiences vacuum conditions, the valve allows air back into the system, preventing pipe collapse.

Key Benefits of Double Orifice Air Valves

Efficient Air Release: 

The dual-orifice design performs both essential functions efficiently. One orifice allows for both large volumes of air to escape quickly during startup and the other orifice for draining and small air releases during normal operation. This versatility ensures optimal pipeline performance under varying conditions.

Prevents Water Hammer: 

Water hammer is a damaging surge of pressure caused by a sudden change in fluid velocity. Trapped air in the system can exacerbate this effect. A double orifice air valve performance prevents the sudden valve closure by releasing air pockets.

Reduces Energy Consumption: 

Air pockets in pipelines create resistance, requiring pumps to work harder to maintain pressure. By eliminating these air pockets, double orifice air valves reduce the strain on pumps, leading to lower energy consumption and prolonged equipment life.

Prevents Pipeline Damage: 

Without proper air release, pipelines can face increased internal pressure, which can lead to leaks, cracks, or even catastrophic failures. Double orifice air valves mitigate this risk and allow air to escape in a controlled manner. Hence, protecting the structural integrity of the pipeline.

Prevents Vacuum Formation: 

When a pipeline is emptied or experiences a drop in pressure, a vacuum can form, potentially collapsing the pipe. The large orifice of the valve opens to allow air into the system. This balances the internal pressure and prevents vacuum conditions.

Improves Flow Efficiency: 

Air pockets trapped in the pipeline restrict the flow of fluids, reducing overall system efficiency. By continuously releasing air, double orifice air valves maintain smooth fluid flow, enhancing the overall efficiency of the pipeline.

Minimal Maintenance: 

Automatic operations offer the advantage of minimal air valve maintenance. Their robust construction ensures long service life even in harsh conditions, reducing operational downtime and maintenance costs.

Versatility Across Applications: 

Double orifice air valves are suitable for a wide range of applications. Right from water distribution and sewage systems to industrial pipelines and irrigation networks. Their ability to manage both small and large air volumes makes them ideal for varying operational environments. 

Where Are Double Orifice Air Valves Commonly Used? 

Water Supply Systems: In water distribution networks, double orifice air valves help maintain optimal water flow and prevent pressure surges.

Sewage and Wastewater Systems: 

Air release is critical in systems handling wastewater due to the potential for trapped gases.

Irrigation Systems:

 Air pockets in agricultural pipelines can disrupt water supply and damage the infrastructure, making air valves essential.

Industrial Pipelines: 

In systems transporting fluids like oil, chemicals, or gases. The industrial air valve maintains pressure and prevents air accumulation which is critical to ensure process efficiency and safety.

Get Firsthand Look of Quality Double Orifice Air Valve at WETEX 2024

We at Dutco Tennant LLC supply high-quality Double Orifice Air Valves. With incredible features, the valves are designed to boost system performance. Some of the key features include:

• Compact design with low weight

• Large cross-section with maximum air admission and release rates

• Automatic operational air release via lever with patented self-cleaning during each switching cycle

• Internally enamelled, externally EKB coated

• Stainless steel 316 internal trim & floats.

• Resilient seating for positive shutoff

• Non-clog design handy for eliminating backwashing

You can witness this product firsthand in our showcase for this year’s WETEX 2024 Exhibition. Our stall will be in Hall 7-G5 from 1-3 October 2024 at Dubai World Trade Centre.

Conclusion 

Double orifice air valves are truly an indispensable solution that plays the role of ensuring smooth operation of fluid handling systems. The series of benefits it offers makes it a must-have valve in industrial systems. 

Right from efficient air release, water hammer prevention, energy consumption reduction to maintaining pipeline integrity, these valves are a valuable addition to any pressurised pipeline system. 

So, what are you waiting for? Invest in high-quality air valve solutions today!