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Air Vacuum Valve

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MOQ : 1 Unit

Air Vacuum Valve Specification

Material Grade
IS 210 Gr FG 260 / EN-GJS-450-10

Features
Float mechanism, corrosion resistance, heavy duty construction

Thickness
Depends on size, typically 5 mm - 15 mm

Purity
N/A (not applicable for finished component)

Diameter
Corresponds to pipe diameter: 1 to 12

Installation Type
Flanged / Threaded

Application
Water supply systems, irrigation, industrial pipelines

Form
Valve assembly

Load Capacity
Suitable for standard pipeline pressure ratings

Machines Type
Pipeline Accessories

Usage
Pipeline air management, vacuum prevention

Color
Blue (Standard), Custom colors on request

Product Type
Air Vacuum Valve

Main Material
Cast Iron / Ductile Iron

Surface Treatment
Epoxy Coated / Painted

Size
1 to 12 (25mm to 300mm)

Weight
Varies with size, approx. 3 kg to 60 kg

Feature
Automatic Air Release, Anti-Corrosion, Durable Design

Shape
Cylindrical / Dome top

Float Material
Stainless Steel / Polypropylene

Compliance
Conforms to IS:14845, AWWA C512, or equivalent

Inlet Pressure Requirement
Minimum 0.2 bar

Standard Pressure Rating
PN10 / PN16 / PN25

End Connection
Flanged to IS/BS/ANSI/DIN standards

Sealing Material
EPDM / NBR Rubber

Operating Principle
Combination of large orifice and small orifice air release

Working Temperature Range
0°C to 80°C

Max. Discharge Rate
Varies by size, e.g. up to 5200 Nm³/h (for larger sizes)

Maintenance
Minimal, easy inspection and servicing

Air Vacuum Valve Trade Information

Minimum Order Quantity
1 Unit

FOB Port
FOB, FCA, CIF, CFA etc

Payment Terms
Telegraphic Transfer (T/T)

Sample Available
Yes

Packaging Details
Export Wooden Packing

Certifications
ISO 9001/14001:2008

About Air Vacuum Valve

Product Description

The operation of an air/vacuum valve is similar to the air release valve except that the orifice diameter is considerably larger and will not open under pressure. An air/vacuum valve is normally open and is designed to vent large quantities of air through the orifice. As water enters the valve during filling of the system, the float will rise closing the orifice. Air/vacuum valves once closed WILL NOT REOPEN TO VENT AIR while the pipe-line is operating under pressure exceeding atmospheric pressure or if water is present.

Product Features

Pressure & Vacuum relief in a water piping system

High capacity Venting & Vacuum relief for piping system protection

Increase efficiency of water transport in a piping

Prevent overflowing

Easily cleaning the Inside of air/vacuum valve

Product Specifications

This MAV type products describes 1/2-in.(13-mm) through 30-in.(750-mm) for flanges/orifice of air/vacuum valves and The valves are designed for use in water systems with maximum working pressures of 300 psig (2,070 kPa [gauge]) and water temperatures ranging from above freezing to maximum of 125%(52). - AWWA C512/AWWA M51

Product Use

Air/Vacuum Valves, also called large orifice valves, are designed to exhaust large quantities of air automatically during pipeline filling and to admit large quantities of air automatically when the internal pressure in the pipeline drops below atmospheric pressure.

Efficient Air Management for Pipelines

This air vacuum valve adopts both large and small orifices to reliably release entrapped air, prevent vacuum formation, and optimize pipeline flow. Its versatile design supports diverse applications, including water supply systems, irrigation, and industrial pipelines, helping to maintain efficiency and prolong the life of system components.

Robust Materials and Reliable Construction

Manufactured from cast iron or ductile iron and treated with epoxy coating or paint, this valve resists corrosion and harsh environments. The float assembly is made from durable stainless steel or polypropylene, and the sealing is ensured with EPDM or NBR rubber, contributing to a long service life and consistent performance.

FAQ's of Air Vacuum Valve:

Q: How does the air vacuum valve operate in a pipeline system?

A: The valve automatically releases trapped air via a combination of large and small orifices as the pipeline fills and prevents vacuum conditions during draining, ensuring uninterrupted water flow and protection of the pipeline infrastructure.

Q: What are the main benefits of using this air vacuum valve in water supply or irrigation applications?

A: It helps maintain pipeline efficiency by removing air pockets and preventing vacuum buildup, which reduces the risk of water hammer, pipe damage, and flow restrictions. Its automatic operation, durable materials, and corrosion resistance provide long-term reliability.

Q: When should this valve be installed in a pipeline system?

A: Install the air vacuum valve at critical high points, pump discharges, and locations prone to air accumulation or vacuum conditions, ideally during the pipeline commissioning or upgrade phase for optimal system performance.

Q: Where can the air vacuum valve be used?

A: It is suitable for water supply networks, irrigation systems, industrial pipelines, and any application requiring air release and vacuum protection in pressurized pipelines. The valve meets IS:14845, AWWA C512, or equivalent standards, ensuring broad compatibility.

Q: What is the recommended process for maintaining this valve?

A: Routine inspection is simple; check for debris or blockages and ensure the float and sealing components move freely. Minimal maintenance is needed, and the flanged or threaded connections allow for straightforward removal if servicing is required.

Q: What types of end connections and sizes are available for this valve?

A: The valve is supplied with flanged connections adaptable to IS, BS, ANSI, or DIN standards and is available in sizes ranging from 1 inch (25 mm) to 12 inches (300 mm) to fit various pipeline diameters.

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