for Irrigation System 1" Release Valve/ Air Vent Valve

• Customization: Available
• Media: Gas
• Temperature: Low Temperature
• Connection: Thread
• Pressure: Adjustable
• Closed: Open
• Structure: Spring
• Material: PP
• Other Name: Air Release Valve/Air Vent Valve
• Usages: Gardens Greenhouses Lawn Irrigation Agricultural
• Advantages: Quick Connector, Easy Connect
• Transport Package: Plastic Bag, Carton Box, Pallet
• Specification: 3/4"
• Trademark: Without brand
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000 PCS/Month

Product Description

The features and advantages of this air vent valve

• Small size, simple structure and reliable performance.
• The valve body adopts the direct passage design, the inlet and outlet are large in size and large in flow.
• Sealed float moves long length, Prevents floating balls from blowing high velocity air, resulting in premature exhaust closure, and does not affect air inhalation or removal.
• Dynamic low pressure seal. It can maintain good tightness at low pressure (0.3bar) and avoid leakage.
• All components have advantages of corrosion resistance, low maintenance frequency and long service life.

How the valves work?

In the process of water injection, a large amount of air is rapidly discharged from the intake and exhaust ports. Then after the water enters the air valve chamber, the float rises with the liquid level and will close the quick intake and exhaust port. The valve was designed according to gas dynamics and anti blow design of floating ball. So before the water enters the air valve, the float will be prevented from blowing by the high velocity air stream and closing the exhaust port prematurely.

When the system is evacuated, there is negative pressure difference, and the air will push the ball downward. The power type quick intake and exhaust vents are opened, and air enters the air valve to avoid negative pressure in the system. When the system is under pressure, the intake and exhaust valves remain closed.



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FAQ: (Frequently Asked Questions)

1. What is your MOQ?
Our MOQ is usually 5 CTNS.

2. What is your delivery time?
Our delivery is about 30-45days.

3. What is your payment terms?
We accept T/T, 100% L/C, or West Union and so on.

4. Could you provide free samples?
Usually, we offer free samples, customer bear the freight cost.

5. Why choose us?

Firstly,  comparing with many factories, our prices are more competitive.

Secondly,  We 100% test working pressure for ALL our products, and we inspect 5 times every order.
1) Inspect when the ball valves come out from the injection moulding machine
2) Inspect when adding O-rings
3) Inspect when installing handle caps
4) Inspect after working pressure test
5) Inspect before packing

Finally,  After- Services will be highly satisfied. Any problems and feedbacks will be responded efficiently.


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Company introduction

SWD PLASTIC (Salvador Industrial Co., Ltd) is a leading and professional manufacturer and exporter for UPVC, CPVC, PPH, PVDF pipes, valves and fittings in China. We stick to the principle of " Quality First, Service First, Continuous Improvement and Innovation to Meet the Customers", and the quality management objective of " Zero Defect, Zero Complaints". 

SWD Products are widely used in Agricultural Irrigation, Wastewater Treatment, Aquaculture, Pharmaceutical Industry, Electroplating, Papermaking Industry...

Most of our products confirm to ANSI, DIN, BS, JIS & TIS standard and have been already sold to United States, Canada, Mexico, Chile, Colombia, Peru, Russia, Saudi Arabia, UAE, Iran, Iraq, Thailand, Philippines, Indonesia, Malaysia etc. With very good reputation. 

With rich experience in piping & duct systems, we will provide best solutions and services to you.
Welcome to our company visit and discuss business, sincerely hope our professional technology and individual service can win your trust and favor, looking forward to cooperate with friends all over the world, let′s do win-win business together!