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PRODUCT CATEGORY

Air Valves

Air release valves protect pressurized water and wastewater pipelines by automatically venting trapped air during filling, releasing accumulated air under pressure during operation, and admitting air during draining to prevent vacuum and pipe collapse. Available as combination air valves, single chamber, sewer air valves, vacuum and underground configurations for water, wastewater and sewage systems.

DN40 - DN500 Up to PN40 EN 1074 Ductile Iron / Stainless Steel

CHOOSE YOUR TYPE

Available Configurations

Double Chamber Triple Function

Double Chamber - Triple Function

Combination air release valve with triple-function design, combining large orifice air discharge/intake with small orifice automatic air release in one assembly. Suitable for water and wastewater pipelines.

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Single Chamber Double Function

Single Chamber - Double Function

Two-function air valve for air release during filling and air admission during draining. Compact air bleed valve design for water pipeline systems.

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Single Chamber Triple Function

Single Chamber - Triple Function

Triple-function water air release valve with non-slam surge arrestor design to reduce water hammer risk while handling filling, draining, and pressurized air discharge.

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Vacuum Type

Vacuum Type

Vacuum air valve designed for rapid air intake during draining or pipe burst scenarios to prevent vacuum formation.

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Triple Function Underground

Triple Function - Underground

Triple-function underground air valve with extended access configuration and integral check/isolation mechanism.

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Triple Function Sewage

Triple Function - Sewage

Sewage air release valve with triple-function anti-clog design and separation between liquid and closure mechanism. This sewer air valve includes a flushing arrangement for wastewater and sewage networks.

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Double Chamber - Triple Function
AIR VALVE TYPE

Double Chamber - Triple Function

Double Chamber Triple Function Air Valves are designed to perform three functions: air release during pipeline filling, air admission during draining, and discharge of pressurized air pockets during operation. The aerodynamic float concept supports efficient venting without premature closure until the chamber fills with water.

Application

  • Venting of air on start-up while pipelines are filled
  • Intake of air on shut-off while pipelines are drained
  • Discharge of pressurized air pockets during operation

Key Features

  • Aerodynamic float design prevents premature closure
  • Full bore and reduced bore options available
  • Optional isolation valves for safety
  • Manifolds available for parallel installation
  • Testing cocks for inspection and control
  • Threaded versions for sizes less than DN65
Size Range
DN40 - DN500
Pressure Rating
PN10 / PN16 / PN25 / PN40
Body Material
Ductile Iron GGG40
Float
Polypropylene (PP)
Seat
NBR / EPDM
Standards
EN 1074
Key Features
Download PDF
Single Chamber - Double Function
AIR VALVE TYPE

Single Chamber - Double Function

Single Chamber Double Function Air Valves are designed for two functions: venting air during start-up/filling and admitting air during shut-off/draining. Not suitable for discharging pressurized air pockets while the system is operating.

Application

  • Venting of air on start-up while pipelines are filled
  • Intake of air on shut-off while pipelines are drained

Key Features

  • Aerodynamic float prevents premature valve closure
  • Full bore and reduced bore versions on request
  • Isolation valves available on demand
  • Manifolds for parallel installation on request
  • Testing cocks for inspection and control
  • Threaded versions for dimensions less than DN65
Size Range
DN40 - DN500
Pressure Rating
PN10 / PN16 / PN25 / PN40
Body Material
Ductile Iron GGG40
Float
Polypropylene (PP)
Seat
NBR / EPDM
Standards
EN 1074
Key Features
Download PDF
Single Chamber - Triple Function Non-Slam
AIR VALVE TYPE

Single Chamber - Triple Function Non-Slam

Single Chamber Triple Function Non-Slam Air Valves perform three functions (filling, draining, and pressurized air discharge during operation). The non-slam configuration is intended to reduce water hammer risk during high-velocity air discharge while maintaining high air capacity (full-bore design).

Application

  • Venting of air on start-up while pipelines are filled
  • Intake of air on shut-off while pipelines are drained
  • Discharge of pressurized air pockets during operation

Key Features

  • Non-slam design prevents water hammer
  • Full bore for higher air capacity
  • Optional isolation valves on request
  • Manifolds for parallel installation
  • Testing cocks for inspection and control
  • Threaded versions for dimensions less than DN50
Size Range
DN40 - DN500
Pressure Rating
PN10 / PN16 / PN25 / PN40
Body Material
Ductile Iron GGG40
Float
Polyethylene
Seat
NBR / EPDM
Standards
EN 1074
Key Features
Download PDF
Vacuum Air Valve
AIR VALVE TYPE

Vacuum Air Valve

Vacuum Air Valves are designed primarily for rapid air intake to prevent vacuum formation during draining and column separation events. Optional configurations allow integration with additional air release functions and monitoring accessories when required.

Application

  • Intake of large quantities of air on shut-off while pipelines are drained
  • Column separation protection due to pipeline burst or flow fluctuation

Key Features

  • Suitable for potable water and sewage applications
  • Optional isolation valves on demand
  • Integral air release valve installation available
  • Single or double-sided lever and counterweight options
  • Protection cover accessory available
  • Limit switch for SCADA communications
  • Manifolds for parallel installation
Size Range
DN40 - DN500
Pressure Rating
PN10 / PN16 / PN25 / PN40
Body Material
Ductile Iron GGG40
Disc Seal
NBR / EPDM
Mechanism
Lever & Counterweight
Standards
EN 1074
Key Features
Download PDF
Triple Function - Underground
AIR VALVE TYPE

Triple Function - Underground

Triple Function Underground Air Valves are designed to vent air during filling, admit air during draining, and discharge pressurized air pockets during operation in subsurface installations. The integral check/isolation mechanism is intended to simplify installation and maintenance.

Application

  • Venting of air on start-up while pipelines are filled
  • Intake of air on shut-off while pipelines are drained
  • Discharge of pressurized air pockets during operation

Key Features

  • Available in three different length options
  • Integral check mechanism eliminates need for isolation valve
  • Integral water drain plug included
  • Surface box option available on request
Size Range
DN50 - DN100
Pressure Rating
PN10 / PN16
Body Material
Ductile Iron GGG40
Float
POM
Seat
NBR
Connection
Threaded
Key Features
Download PDF
Triple Function - Sewage
AIR VALVE TYPE

Triple Function - Sewage

Triple Function Sewage Air Valves are designed for contaminated media where clogging risk is higher. The valve integrates kinetic and automatic air evacuation functions and is designed to separate the liquid from the closure mechanism to support reliable operation.

Application

  • Venting of air on start-up while pipelines are filled
  • Intake of air on shut-off while pipelines are drained
  • Discharge of pressurized air pockets during operation

Key Features

  • Standard flushing ball valve included
  • Anti-clog funnel shape body design
  • Sealing body available in POM or Ductile Iron
  • Non-slam option available on request
  • Manifolds for parallel installation
Size Range
DN80 - DN200
Pressure Rating
PN10 / PN16
Body Material
Ductile Iron GGG40
Float
Stainless Steel SS316
Seat
NBR
Standards
EN 1074-2
Key Features
Download PDF

APPLICATIONS

Where Our Air Valves Are Commonly Used

Water Transmission

Long-distance water supply pipelines

Sewage Networks

Force mains and gravity sewers

Irrigation

Agricultural water distribution systems

Power Plants

Cooling water and process pipelines

DOWNLOADS

Technical Catalogues

Download detailed specifications, dimensions, and technical data sheets.

Double Chamber Triple Function
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Single Chamber Double Function
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Single Chamber Triple Non-Slam
Download PDF
Vacuum Valve
Download PDF
Triple Function Underground
Download PDF
Triple Function Sewage
Download PDF
Full Product Catalogue
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Need a Custom Configuration?

Our engineering team can help you select the right air valve for your specific pipeline requirements.