Series VC
Complementary valves for air valves
Slow-closing valve
Air outlet regulation valveIRUA Series VC consists of complementary valves designed to improve the operation and safety of air valves during hydraulic maneuvers in pipelines. On the one hand, the slow-closing valve makes it possible to control closing after air evacuations to avoid phenomena associated with sudden closures in the pipeline. On the other hand, the air outlet regulation valve makes it possible to incorporate an adjustment of the evacuation flow when more precise control of air outlet is required during filling or purging of installations.
Series VC valves are used as complementary elements to air valves, allowing control of closing speed and optimization of air outlet at points in the network where hydraulic conditions require more adjusted system behavior.
Two complementary solutions
Series VC integrates two lines of complementary valves to improve and protect the behavior of air valve installations in pipelines.
Slow-closing valve

Slow-closing valves make it possible to reduce the closing speed of the air valve during pipeline filling.
In this way, sudden closure caused by the air release regime is avoided, reducing the likelihood of water hammer or hydraulic instability in the network.
They are indicated for pumping mains, long pipelines or long-distance locations where the dynamic conditions of pipeline filling may cause sudden closures.
Air outlet regulation valve

Air outlet regulation valves make it possible to control the air evacuation speed during pipeline filling.
By regulating the evacuated air flow, pipeline filling is carried out in a more progressive and controlled way, reducing the risk of transient hydraulic phenomena.
This type of valve is used mainly in large-diameter pipelines or in installations where precise control of the hydraulic behavior of the system is required.
Main benefits
Series VC is oriented to improving the behavior of air valve systems where a conventional air valve requires additional support.
Designed to prevent air admission and air expulsion from generating unwanted phenomena.
The slow-closing valve reduces closing speed during pipeline filling.
The outlet regulation valve allows more progressive and stable control.
The series allows the hydraulic operation to be adapted to projects or sections of the system.
Provides an additional degree of protection against demanding hydraulic maneuvers.
Applicable in long-distance, large-diameter or highly demanding installations.
Manufacturing range
Nominal pressures PN10-PN40 / #300. Reference standards EN / ANSI.
Nominal pressures PN10–PN25 / #150. Reference standards EN / ANSI.
Applications
Products designed for critical applications
IRUA air valves are designed to work in demanding hydraulic infrastructures, from water supply networks and pumping stations to desalination plants, mining or industry and power generation.
Need to define which complementary valve best fits your air valve?
IRUA’s technical team can help you select the most suitable solution to improve the safety and hydraulic stability of your installation.


