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Exhaust Air Valves

High-Performance Exhaust Air Valves Engineered for Zero-Defect Water & Wastewater Pipelines

Eliminate trapped air, prevent water hammer, and reduce energy costs by up to 18% — with precision-machined exhaust air valves built for 150+ PSI systems. Trusted by municipal utilities and industrial plants across North America.

✅ Over 1,200+ valves shipped monthly to USA, Saudi Arabia, South Africa & Italy

Trapped Air Is Quietly Destroying Your Pipeline Efficiency

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15-25% Flow Reduction

Air pockets restrict cross-sectional flow, forcing pumps to work harder and increasing electricity bills. A 6-inch line with trapped air can lose up to 20% capacity instantly.

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Water Hammer Damage

When air pockets collapse, pressure surges can exceed 300 PSI — cracking flanges, bursting gaskets, and damaging sensitive instrumentation. Repairs cost $2,000–$15,000 per incident.

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Corrosion & Sensor False-Readings

Dissolved oxygen in trapped air accelerates pipe wall corrosion. Air bubbles also confuse flow meters and pressure transmitters, leading to costly SCADA errors.

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Safety Hazards During Start-Up

Empty pipelines filled with air can cause violent valve slamming when water enters, posing serious risk to operators and nearby equipment.

Are these issues inflating your O&M budget?

See how Thriveon fixes them ↓

Thriveon Exhaust Air Valves — Precision Air Management for Critical Pipelines

Unlike generic air release valves, our exhaust air valves are designed with a stainless steel trim, full-port orifice, and a guided float mechanism that never jams — even in dirty water applications.

Full-Port Orifice Design

Up to 40% larger air discharge capacity than standard models. Clears a 12-inch air pocket in under 30 seconds at 60 PSI.

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316L Stainless Steel Trim

Corrosion-resistant float and seat — ideal for potable water, wastewater, and chemical dosing lines. No rubber swelling, no sticking.

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Pressure Class 150 / 300 / 600

Tested to ANSI B16.34 standards. Suitable for high-rise building booster systems, irrigation mains, and high-pressure industrial loops.

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10-Year Anti-Jam Guarantee

Our guided float stem uses a PTFE bushing — proven in 10,000+ cycles to prevent sticking even with silt and sand content up to 200 ppm.

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OEM / Custom Configurations

Threaded (NPT/BSP), flanged (ANSI/DIN/JIS), or grooved ends. Add thermostatic air release, vacuum breaker, or combination air/vacuum functions in the same housing.

Technical Specifications — Exhaust Air Valve Series

Thriveon Model T-EAV Series — Key Parameters (ANSI Standard)
Parameter T-EAV 150 T-EAV 300 T-EAV 600
Body MaterialDuctile Iron / WCBWCB / CF8MCF8M (316SS)
Pressure Rating (PSI)150300600
Orifice Size (inch)1/2" – 2"1/2" – 3"3/4" – 4"
Max Temperature180°F (82°C)250°F (121°C)400°F (204°C)
End ConnectionsNPT / FlangedFlanged / GroovedFlanged / BW
Seat MaterialEPDM / Buna-NEPDM / VitonPTFE / Viton
Standards MetAWWA C512, ISO 9001AWWA C512, CE, RoHSAPI 6D, CE, ATEX (opt)

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📁 Full 2D/3D drawings and material certificates are available upon request. Request drawing package →

Where Thriveon Exhaust Air Valves Deliver the Most Value

🏙️ Municipal Water Distribution

Installed at high points in 12"–36" mains. Reduced pump cycling by 22% for a utility in Texas — saving $14,000/year in electricity.

🏭 Industrial Cooling Loops

Protects chillers and cooling towers from air-binding. One chemical plant eliminated 3 unplanned shutdowns per quarter after retrofitting T-EAV 300s.

💧 Wastewater Treatment Plants

Handles solids-laden air with zero clogging. A South African WWTP reported 100% uptime on their digester gas line for 18+ months.

🏗️ High-Rise Booster Systems

Prevents pressure drop in 40-story buildings. Installed at each pump discharge — maintains steady 60 PSI to top floors.

👉 Tell us about your application — we’ll recommend the exact valve configuration. Start here →

Frequently Asked Questions About Exhaust Air Valves

1. What is the difference between an exhaust air valve and a standard air release valve?

An exhaust air valve (also called a combination air/vacuum valve) has a larger orifice than a standard air release valve. It can discharge large volumes of air during pipeline filling and also release small pockets under pressure. Thriveon’s T-EAV series combines both functions in one unit, eliminating the need for dual valves at high points.

3 8 Air Check Valve

2. How do I size an exhaust air valve for my pipeline?

Sizing depends on pipe diameter, flow rate, and pressure. A general rule: for pipes up to 12", use a 2" exhaust air valve. For 12"–24", use a 3" valve. Thriveon provides a free sizing tool — email us your pipe schedule and we’ll confirm the model within 4 hours.

3. Can Thriveon provide valves with NPT threads for the US market?

Absolutely. All our exhaust air valves are available with NPT (ANSI B1.20.1), BSP, flanged (ANSI 150/300/600), or grooved ends. We stock NPT configurations for same-week shipment to the USA.

4. Do you offer OEM / custom branding on the valves?

Yes. We provide OEM casting with your logo, custom tag plates, and special painting (RAL colors). Minimum order quantity for full OEM is 50 units; partial customization (tag + paint) is available from 10 units.

5. What is the lead time for a standard exhaust air valve order?

Standard sizes (1/2"–3", 150/300 class) ship in 5–10 working days from our factory in Hebei, China. Express air freight (3–5 days to US ports) is available. Larger orders or custom alloys may require 15–20 days.

6. How do I handle warranty claims if a valve fails?

Thriveon offers a full 5-year warranty against manufacturing defects. In case of failure, we ship a replacement within 72 hours and cover return shipping for failure analysis. Our technical team is available on WhatsApp for real-time troubleshooting.

7. Can exhaust air valves be used for sewage / wastewater?

Yes — our T-EAV-S series features a stainless steel float and a self-cleaning guide rod that prevents solids buildup. We recommend Viton seals for sewage gas resistance. Hundreds of units are deployed in municipal wastewater plants across South Africa and Italy.

⭐ Real Reviews from Global Customers

Reviewer photo

“Thriveon’s exhaust air valves are the best I’ve used in 20 years. The build quality is on par with US brands, and their engineering team actually answers the phone. We’re standardizing on T-EAV 300 for all new projects.”

— Tom W., Project Manager, Jacobs Engineering (USA)

Reviewer photo

“We were skeptical about Chinese-made valves until we tested Thriveon. The pressure test passed first time, and the price was 40% less than the European equivalent. Fast delivery too — 9 days from order to Jeddah.”

— Khalid A., Procurement Lead, Saudi Aramco Contractor

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“The OEM service is outstanding. They matched our exact flange drilling and painted the valves in our corporate blue. Quality checks were rigorous — every valve came with a hydrotest certificate.”

— Maria F., Operations Director, AquaTech Italy

Ready to Stop Wasting Energy and Money on Trapped Air?

Get a free sample valve (freight included) for qualified projects — test it in your pipeline for 30 days risk-free.

⏰ Limited-Time Offer: Free sample available for first 5 inquiries this month 📦 In-stock 1/2"–3" NPT models — ship within 5 days

✅ 100% Money-Back Guarantee if the valve doesn’t meet your performance specs within 60 days.


Author portrait

About the Author — Zhang Wei

Zhang Wei is a Senior Valve Application Engineer at Ningjin Thriveon Valve Co., Ltd. with 14 years of experience in fluid dynamics and pipeline protection systems. He has designed custom air-release solutions for over 200 municipal and industrial projects worldwide and is a member of the China Fluid Power Society. He is committed to helping engineers select the right valve for every operating condition.

“I personally review every technical inquiry sent to Thriveon — my goal is to give you a solution that works on the first install, every time.”

Ningjin Thriveon Valve Co., Ltd. | South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei, China

Tel: +86-311-86935302 | Email: info@thriveonvalve.com | Contact Page

Product Categories: Butterfly Valves, Flanged Gate Valves, Flanged Globe Valves, Check Valves, Ball Valves, Y Strainers, Foot Valves, Stainless Steel Valves

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