Air Release Valve Manufacturer in India – Speciality Valve

Speciality Valve is an Air Release Valve Manufacturer in India that designs and supplies reliable, high-performance valves to ensure smooth operation and efficiency in pressurized piping systems. Our air release valves are engineered to automatically vent trapped air pockets, maintain consistent pressure, prevent water hammer, and protect pipeline integrity. Manufactured as per ASME, AWWA, and ISO standards, they are ideal for water, wastewater, and industrial fluid applications.

Function & Working

Air accumulates naturally in pressurized pipelines during filling, draining, and operation. If not released, these air pockets cause pressure build-up, flow restrictions, and potential system damage. An air release valve installed at high points automatically discharges trapped air while maintaining line pressure. When air enters the valve, the liquid level drops and the float descends, opening the orifice to vent the trapped air. Once air is expelled, the float rises with the liquid level and seals the valve.

A Combination Air Valve integrates both kinetic and automatic functions. It releases large air volumes during pipeline filling, admits air during draining, and continuously vents small air pockets during operation—ensuring efficient performance under all pressure conditions.

Advantages

Prevents air locks and water hammer
Improves pump and pipeline efficiency
Maintains uniform system pressure and flow
Reduces mechanical wear and energy losses
Compact and easy to install or maintain

Types of Air Release Valves

Single Orifice Air Release Valve – For small air pockets in pressurized lines
Double Orifice (Kinetic) Air Valve – For venting large air volumes during filling and draining
Combination Air Valve – Dual-function valve for continuous air release and vacuum relief

Industries Served

Water Supply and Wastewater Treatment
Irrigation and Drainage Networks
Pipeline Transmission and Distribution Systems
Power and Thermal Plants
Chemical and Petrochemical Industries
Oil and Gas Pipelines
Fire Protection and HVAC Systems
Marine, Desalination, and Offshore Installations
Mining and Pulp & Paper Industries

Materials (Body, Float, and Trim)

Technical Specifications

Design Standards: AWWA C512, ASME B16.34, ISO 5208, PED 2014/68/EU
Testing Standards: API 598, EN 12266-1
Size Range: DN15 – DN200 (½″ – 8″)
Pressure Ratings: PN6 – PN40 / Class 150 – 300
Temperature Range: –10 °C to +120 °C (depending on material)
End Connections: Flanged (EN 1092 / ASME B16.5), Threaded (NPT/BSP)
Operation: Automatic float-actuated design, self-operating mechanism

Key Features

Automatic release of trapped air during operation
Vacuum relief during pipeline emptying
Combination function for simultaneous venting and intake
Tight sealing under varying pressure conditions
Long service life with corrosion-resistant internals

Why Choose Speciality Valve

Speciality Valve manufactures air release and combination air valves in various materials including cast iron, ductile iron, stainless steel, and carbon steel to suit different media and pressures. Our valves undergo stringent leak, pressure, and endurance testing to ensure reliable field performance. Each valve is supplied with EN 10204 3.1 certification and can be customized for potable water, sewage, or industrial fluid applications.

As a trusted Air Release Valve Manufacturer in India, Speciality Valve delivers precision-engineered, corrosion-resistant valves designed to enhance system performance and protect critical infrastructure