Delta-Elektrogas VRA VLA VTA Solenoid Valves

The Delta-Elektrogas VRA VLA VTA Solenoid Valves function as a critical safety barrier in gas combustion systems. Unlike standard normally closed valves, these units remain open by default to allow for continuous venting or flow. When an electrical signal is applied, the electromagnetic coil creates a force that overcomes the internal spring, driving the disc to shut off the flow in less than one second.

This series is particularly valued for its versatility in mechanical configuration. The VRA version features a standard design, while the VLA and VTA variants offer specialized body geometries to fit various piping layouts. Every valve in this range is constructed from high-quality die-cast aluminum alloy, ensuring a lightweight yet durable housing that resists corrosion and high-pressure stress. With an integrated fine-mesh filter, these valves protect their own internal seats from debris, ensuring long-term bubble-tight sealing and reducing the need for frequent maintenance in high-duty cycle applications.

Description

The Delta-Elektrogas VRA VLA VTA Solenoid Valves series provides a specialized safety solution for the automatic shut-off and regulation of gas and air flows. These normally open valves are engineered to open when the coil is de-energized and close instantly when powered, making them an essential component for relief lines, discharge systems, and combustion safety protocols.

Brand

Delta-Elektrogas

Delta-Elektrogas

In 1961 Elettromeccanica DELTA s.p.a. was founded in Arcade (TV) with the aim of designing and manufacturing oil burners with mechanical atomization. Today, Elettromeccanica DELTA and its brand Deltapumps and Elektrogas are leading manufacturers of gear oil pumps and safety control valves, exported in more than 60 countries in the world.

Specifications

Operational & Mechanical Data

  • Valve Type: Automatic Normally Open (NO) Solenoid Valve
  • Body Material: Die-cast aluminum alloy
  • Gas Suitability: Natural gas, LPG, Town gas, and Air
  • Pressure Rating: Up to 200 mbar or 500 mbar (Model dependent)
  • Closing Time: < 1 second
  • Opening Time: < 1 second
  • Connections: Threaded (Rp 3/4 to Rp 2) or Flanged (DN40 to DN150)
  • Protection Class: IP54 (Standard) or IP65 (Optional)
  • Ambient Temperature: -15°C to +60°C

Electrical Specifications

  • Power Supply: 230V AC, 110V AC, 24V AC/DC
  • Voltage Tolerance: -15% to +10%
  • Duty Cycle: 100% Continuous operation supported

Features

  • Normally Open Operation: Ideal for venting and relief line applications where flow must be maintained during power loss.
  • Fast Safety Response: Guaranteed shut-off time of less than one second for rapid system protection.
  • Integrated Protection: Built-in fine-mesh filter prevents dust and particles from damaging the valve seat.
  • Flexible Installation: VRA, VLA, and VTA configurations provide multiple piping options to save space in gas trains.
  • Adjustable Flow Rate: Features a built-in flow regulator to fine-tune gas or air discharge volumes.
  • Certified Compliance: Fully compliant with EN161 standards and carries CE and EAC certifications for global industrial use.

Application

  • Relief and Venting Lines: Safely discharging gas from the gas train during emergency or maintenance shut-downs.
  • Industrial Combustion: Managing air or gas flows in furnaces, kilns, and industrial ovens.
  • Power Burners: Serving as a safety vent valve for automatic gas burners in steam and thermal plants.
  • Glass and Ceramic Processing: Precise control of atmosphere and safety venting in high-temperature processing.
  • Atmosphere Control: Regulating air mix and safety discharge in non-aggressive gas environments.