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Econex

SpainHVAC & Refrigeration

Econex s.r.l. manufactures flow-control and actuation components for heating and combustion systems, with a product line centered on butterfly valves and servo motors. The company's catalog is engineered for integration into residential and industrial heating circuits, gas appliances, and combustion-control loops where precise regulation and dependable isolation are required. Econex components are designed to meet European standards, including EN 161 for gas burners and gas appliances, ISO 7005 for flanged connections, and the EC Gas Appliance Directive 90/396/EEC, which governs the safety and performance of gas-fired equipment. Certifications such as DVGW approval for heating-circuit isolation and CE marking (e.g., CE-OO85AQO738) are documented on specific models, confirming compliance with applicable regulatory frameworks.

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About Econex

Econex s.r.l. manufactures flow-control and actuation components for heating and combustion systems, with a product line centered on butterfly valves and servo motors. The company's catalog is engineered for integration into residential and industrial heating circuits, gas appliances, and combustion-control loops where precise regulation and dependable isolation are required. Econex components are designed to meet European standards, including EN 161 for gas burners and gas appliances, ISO 7005 for flanged connections, and the EC Gas Appliance Directive 90/396/EEC, which governs the safety and performance of gas-fired equipment. Certifications such as DVGW approval for heating-circuit isolation and CE marking (e.g., CE-OO85AQO738) are documented on specific models, confirming compliance with applicable regulatory frameworks.

The butterfly valve range covers nominal diameters from DN40 to DN150, available in bare configuration—meaning without an integrated actuator—for applications where manual adjustment or external actuation is preferred. Each valve is rated to PN16 pressure, with flanged ends conforming to ISO 7005, ensuring compatibility with standard piping systems in retrofit and new-build installations. The valves are classified as control devices for gas appliances without zero shutoff, per product category 4103, and are certified for gas types 1, 2, and 3, covering natural gas, LPG, and manufactured gases. The BFV series designation indicates a consistent design philosophy: compact body geometry, maintenance-accessible construction, and straightforward installation without requiring system redesign.

Complementing the valves, Econex offers electric rotary gearmotors (servo motors) designed for 90° rotation in 15 seconds, available in 24V AC and 230V AC supply voltages. These actuators feature 4-20mA proportional control for precise positioning, an IP54 enclosure rating for protection against dust and water splashes, and ISO 5211 F07 fastening with a 10mm output shaft diameter, enabling direct coupling to valve stems. Operating across an ambient temperature range of -10 to +60°C, the servo motors are suited for boiler rooms, industrial heating skids, and combustion-air control dampers. Models such as the AB1C1002S (230V) and AB1A1002SE5 (24V) include manual override capability, allowing for hand operation during commissioning or power loss.

3G Electric supplies the full Econex line, supporting plant engineers and maintenance teams with components that meet European compliance requirements while offering practical installation flexibility. The combination of standardized flange dimensions, modular actuator mounting, and proportional control options allows for seamless integration into existing heating and combustion-control loops. Whether for isolating a heating circuit, modulating gas flow in a burner train, or retrofitting an older system with modern actuation, Econex products provide a technically sound solution without proprietary lock-in. 3G Electric's global distribution ensures these components are available for projects worldwide, backed by technical documentation and specification support.

Common Applications

  • Industrial heating circuits — Econex BFV series butterfly valves (DN40-DN150) for flow isolation and regulation in hot water or thermal oil systems.
  • Gas burner trains — Econex butterfly valves (DN50-DN150) for modulating gas flow in combustion control loops, certified to EN 161.
  • Boiler room automation — Econex AB1A1002SE5 servo motor (24V AC, 4-20mA) for automatic damper or valve positioning in boiler control systems.
  • Retrofit heating plants — Econex bare butterfly valves (DN65-DN125) with ISO 7005 flanges for replacing outdated manual valves in existing piping.
  • Combustion air control — Econex AB1C1002S servo motor (230V AC) for driving air dampers in industrial burners, with manual override for commissioning.
  • District heating substations — Econex DN150 butterfly valve (DVGW approved) for primary side isolation and flow balancing in heat exchangers.
Origin: Manufactured in Spain

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Frequently asked questions

Common questions about Econex from 3G Electric.

What certifications does the Econex butterfly valve range carry?

Econex butterfly valves are certified under the EC Gas Appliance Directive 90/396/EEC, which is a mandatory conformity mark for gas appliances sold in the European Economic Area. Specific models, such as the DN150 valve (SKU ECO10010), also hold DVGW approval, a German certification for gas and water heating components, and comply with EN 161, the standard for automatic shut-off valves for gas burners. The DN80 valve (SKU ECO10006) carries CE certification under file number CE-OO85AQO738. These certifications confirm that the valves meet safety and performance requirements for use in gas appliance heating systems, including gas types 1, 2, and 3.

What are the pressure and flange ratings for Econex butterfly valves?

Econex butterfly valves are rated to PN16, meaning they are designed to withstand a maximum working pressure of 16 bar at ambient temperature. The flanged connections conform to ISO 7005, which specifies dimensions and tolerances for flanges used in piping systems. This standardization ensures that the valves can be bolted directly to matching flanges in existing heating circuits without the need for adapters or custom fabrication. The combination of PN16 rating and ISO 7005 flanges makes these valves suitable for typical industrial heating and gas distribution systems where pressures do not exceed 16 bar.

What control options are available for Econex servo motors?

Econex servo motors are available with 4-20mA proportional control, which is a standard analog signal used in industrial process control. This allows the actuator to position the valve at any angle between 0 and 90 degrees, proportional to the current signal received from a controller. The motors are offered in two voltage variants: 24V AC and 230V AC, accommodating different control system power supplies. The 4-20mA input enables precise modulation of flow, making these actuators suitable for applications requiring continuous adjustment rather than simple on/off operation. Manual control is also provided on models like the AB1C1002S, allowing for hand operation during setup or emergencies.

What is the mounting standard for Econex servo motors?

Econex servo motors feature ISO 5211 F07 fastening, which is an international standard for mounting actuators to quarter-turn valves. The F07 pattern specifies a bolt circle diameter of 70mm and a pilot bore of 16mm, with a 10mm output shaft diameter. This standardization ensures that the actuator can be directly coupled to any valve with a matching ISO 5211 F07 interface, including Econex butterfly valves and other compatible quarter-turn valves from various manufacturers. The direct coupling eliminates the need for additional brackets or couplings, simplifying installation and reducing the risk of misalignment.

What is the ambient temperature range for Econex servo motors?

Econex servo motors are rated to operate in ambient temperatures ranging from -10°C to +60°C. This range covers typical indoor heating plant environments, including boiler rooms and mechanical rooms, where temperatures may fluctuate but remain within these limits. The IP54 enclosure rating provides protection against dust ingress and water splashes, making the motors suitable for installation in areas where occasional condensation or cleaning sprays may occur. For outdoor installations or extreme temperature environments, additional protection or heating may be required, but for standard industrial heating applications, the -10 to +60°C range is sufficient.

Are Econex butterfly valves suitable for gas applications?

Yes, Econex butterfly valves are specifically designed for gas appliance heating applications. They are certified under the EC Gas Appliance Directive 90/396/EEC, which is a legal requirement for components used in gas-fired appliances within the EU. The valves are classified as control devices for gas appliances without zero shutoff, meaning they are intended for flow regulation but not for safety shutoff functions. They are approved for gas types 1, 2, and 3, covering natural gas, LPG (propane/butane), and manufactured gases. This makes them suitable for use in burner trains, gas manifolds, and heating circuits where gas flow needs to be modulated.