The Single Chamber Quadruple Function Air Release Valve is designed for automatic air intake and discharge in pressurized water pipelines. Its compact float-operated design combines air release, air intake and anti-surge functionality in a single chamber.
The valve is suitable for clean-water pipeline applications where controlled air management is required during filling, draining and normal pressurized operation.
This Single Chamber Quadruple Function Air Release Valve uses a corrosion-resistant polypropylene float and an automatic operating mechanism to manage air inside water pipelines.
The design enables the valve to discharge large quantities of air during pipeline filling, admit air during draining, release smaller accumulated air pockets during pressurized operation and provide controlled air discharge to help reduce surge effects.
Combines large-volume air intake, large-volume air discharge, continuous air release and controlled anti-surge operation.
Controlled air discharge helps reduce pressure pulsation and sudden hydraulic effects within the pipeline.
Polypropylene float offers low weight, corrosion resistance and reliable automatic operation.
Optimized dynamic sealing design supports valve closure even under relatively low-pressure pipeline conditions.
Internal geometry supports efficient air intake and discharge while helping reduce premature valve closure.
Single chamber construction provides a compact, robust and installation-friendly air management solution.
| Valve Type | Single Chamber Quadruple Function Air Release Valve |
|---|---|
| Float Type | PP Float |
| Pressure Rating | PN10 / PN16 |
| Operation | Automatic Float Operated |
| Primary Functions | Air Intake, Large Air Discharge, Automatic Air Release and Anti-Surge Control |
| Service | Clean Water Pipeline Applications |
| Minimum Sealing Pressure | Approx. 0.5 bar, design dependent |
| Design & Test Standards | EN 1074-1 & 4 / EN 12266-1 & 2 |
| Flange Drilling | EN 1092-2 / IS 9523 / IS 1538, depending on configuration |
| Shell Test | 1.5 × PN |
| Seat Test | 1.1 × PN |
| Coating | Fusion Bonded Epoxy Coating, where specified |
During pipeline filling, the large orifice remains open so that displaced air can escape rapidly. As water reaches the valve chamber, the float rises and closes the large air outlet.
During normal pressurized operation, small quantities of accumulated air are automatically discharged through the smaller air-release mechanism.
During pipeline draining, the float drops and the large orifice opens, allowing atmospheric air to enter the pipeline and helping prevent vacuum conditions.
The anti-surge function controls rapid air discharge during critical operating conditions to help reduce pressure fluctuations in the system.
Quadruple Function Air Release Valves are typically installed at pipeline high points, pump discharge locations and other positions where air accumulation, air evacuation or vacuum conditions may occur.
Correct valve sizing should consider pipeline diameter, operating pressure, filling and draining rates, required air capacity and surge-control requirements.
It is an automatic air valve that performs four key functions: air intake, large-volume air discharge, pressurized air release and controlled anti-surge air discharge.
The anti-surge mechanism controls the rate at which air is discharged, helping reduce sudden pressure changes and pulsation in the pipeline.
PP Float refers to a polypropylene float used inside the valve to control automatic opening and closing according to the water level in the valve chamber.
This configuration is intended primarily for clean-water service. Sewage and wastewater systems generally require air valves designed specifically for fluids containing suspended solids.
Contact Forex Valves for Single Chamber Quadruple Function Air Release Valves for clean-water pipeline applications. Share your required valve size, pressure class, connection standard and application details for suitable product selection.
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