Air & Vacuum Relief Valve - Fast Exhaust for Sprinkler/Drip. 1

Air & Vacuum Relief Valve - Fast Exhaust for Sprinkler/Drip. 2

Air & Vacuum Relief Valve - Fast Exhaust for Sprinkler/Drip. 3

Air & Vacuum Relief Valve - Fast Exhaust for Sprinkler/Drip. 4

Air & Vacuum Relief Valve - Fast Exhaust for Sprinkler/Drip. 5

Air & Vacuum Relief Valve - Fast Exhaust for Sprinkler/Drip. 6

Air & Vacuum Relief Valve - Fast Exhaust for Sprinkler/Drip.

Place of Origin:

China

Brand Name:

HYRT Air Relief Valve

Model Number:

Air Vacuum Relief Valve

Samples:

$1567.0/piece | Min. order : 1 piece

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-1000(pieces):15(days),>1000(pieces):To be negotiated(days)

Customization:

Graphic customization (Min. Order: 500 sets),Customized logo (Min. Order: 500 sets),Customized packaging (Min. Order: 500 sets)

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Name

Air Vacuum Relief Valve

Working Pressure

0.1-1.6bar

Keyword

Safety Relief Valve

Diameter

1"-2"

Certification

ISO

Packing

Carton

Feature

Low Pressure

Usage

Water-saving Irrigation System

Place of Origin

Shandong, China

Type

Other Watering & Irrigation

Material

Plastic

Application

Agricultural Farmland Irrigation System

Product name

Agriculture Irrigation Low Pressure Air Relief Valve

Quick Venting, Compact Durability

Valves rapidly exhaust trapped air during filling and admit air during emptying to prevent vacuum and protect sprinkler and drip irrigation pipelines, pumps and filters. A compact straight-flow shape, corrosion-resistant construction and long-stroke float ball deliver reliable low-pressure sealing, fast venting and low maintenance, with secure export packaging for safe transit. Factory OEM options, engineering technical support, on-site testing and quality-tracking services give farmers and installers confidence in performance and fast delivery.

Fast Exhaust Air Relief

These Valves are air & vacuum relief devices for sprinkler and drip irrigation featuring a straight flow channel, large air inlet/outlet and a compound aerodynamic float‑ball design that rapidly exhausts air during filling and inhales air during emptying to prevent vacuum and accumulation. They deliver reliable low‑pressure sealing (0.2 bar), anti‑blow protection for the float ball, corrosion‑resistant construction and long service life with low maintenance, protecting pipelines, filters and fertilizer injectors from damage. With a long movement stroke, dynamic low‑pressure seal and quick‑closing flow ball, these Valves remain closed during normal operation yet open instantly to purge large air volumes, enabling stable performance, easy installation and OEM/custom options for diverse irrigation networks.

Fast Exhaust for Irrigation

These air and vacuum relief Valves provide fast exhaust and suction for sprinkler and drip irrigation systems, quickly discharging trapped air during filling and admitting air during emptying to prevent vacuum damage. Their compound aerodynamic design, large straight flow channel and anti-blow float ball ensure rapid air release, reliable low-pressure sealing (0.2 bar) and long service life with corrosion-resistant components. Ideal for pipe networks, filters, fertilizer injectors and high pipeline points, these Valves protect pumps and pipelines from air accumulation and negative pressure while requiring low maintenance.

◎ Rapid Air Discharge

◎ Reliable Vacuum Prevention

◎ Corrosion Resistant Longevity

Quick Venting, Reliable Protection

Our precision-engineered Valves were developed by a team with decades of irrigation and fluid-control experience, built from corrosion-resistant materials and bench-tested for fast-exhaust performance in sprinkler and drip systems. They deliver rapid air release and vacuum prevention during filling and high-flow fast exhaust during shutdown, minimizing water hammer and extending system life. Key features include stainless-steel springs, reinforced polymer seats, self-cleaning ports, compact installation footprint, and broad fitting compatibility—providing reliable operation, easy maintenance, and reduced downtime.

Material introduction

These Valves are built from corrosion-resistant materials—UV-stable engineering plastics (PVC/PP) or stainless steel/brass bodies—to withstand outdoor irrigation conditions. Internal components like lightweight polypropylene or stainless steel float balls combined with EPDM or NBR dynamic seals provide reliable low-pressure sealing and long movement stroke for fast air discharge. Corrosion-resistant hardware and rugged seals reduce maintenance and extend service life while ensuring rapid exhaust and vacuum protection for sprinkler and drip systems.

◎ material introduction 1

◎ Valve body & inlets

◎ Float & seal assembly

FAQ

What is an air & vacuum relief valve (fast exhaust) and how does it work in sprinkler or drip systems?

It is a mechanical vent that automatically releases trapped air when a pipeline is filling and admits air to prevent a vacuum when the line is draining. On fill, a small pilot or float opens a large exhaust port so air quickly escapes; on shutoff the valve closes and then admits air to prevent pipe collapse and siphoning. Fast-exhaust models move air quickly to reduce surging and fill time.

Why do I need one for my sprinkler or drip irrigation system?

Trapped air reduces flow, causes uneven sprinkler performance, noisy pipes and water hammer when it suddenly moves. In drip systems, air pockets can interrupt emitters. The valve ensures smooth filling, prevents vacuum/siphon when supply shuts off, reduces water hammer, and helps maintain consistent irrigation performance.

Where and how should I install the valve for best results?

Install at the highest point(s) of the zone or mainline where air collects—manifold, riser tops, high-probability pockets. Mount it vertically with the exhaust facing up and keep it accessible. For long mains or uneven terrain use multiple valves spaced near high points. Keep it downstream of the zone control valve but upstream of filters/pressure regulators if you want air removal before those devices.

How do I choose the right valve size and materials for sprinkler vs. drip applications?

Match the valve’s port size and flow capacity to the pipe size and expected air volume—larger mains need larger valves or multiples. For drip zones (low flow), a valve with a responsive pilot is better since slow filling can delay air purge; placing the valve near the manifold helps. Choose materials (PVC, brass, stainless) compatible with your water quality and operating pressure, and check the manufacturer’s max pressure and thread/connection type to match your plumbing.

What maintenance and troubleshooting should I expect?

Periodically inspect and clear debris from the cap/screen. If you hear continuous hissing after fill the valve may be leaking or the seat/float is damaged—clean or replace internal parts. If it fails to exhaust air during filling, check for blockages, installed orientation, or that the valve size is adequate. If water comes out on shutoff, the seating may be worn or debris preventing closure—service or replace the valve.

Any special considerations for winterizing, safety and compatibility with other irrigation components?

Protect from freezing by draining the system or relocating the valve to a frost-free point; the valve itself is not freezeproof. Avoid installing downstream of check valves or anti-siphon devices that would block vacuum relief—air must be able to enter the line. When used with filters, regulators or backflow preventers, place valves where they will be effective (typically between the control valve and downstream equipment as appropriate) and follow the component manufacturers’ guidelines. Always confirm pressure ratings and compatibility with your system from the product datasheet.

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18606348185@lwhyrt. com

Support Center 24/7

0086-18606348185

Our Location

No. 2, Wuhua Street, Fengcheng Industrial Park, Laiwu District, Jinan City, jinan, Shandong, China