Elektrogas Safety Solenoid Valves – VML & VML 6 Bar Series

Description

Key Features:

• Durable Construction – Made from aluminum alloy die-cast, ensuring long-lasting and corrosion-resistant performance.

• Wide Connection Range – Available in sizes from DN10 (3/8”) to DN80 (3”), suitable for various gas system requirements.

• Gas Compatibility – Designed for use with air and non-aggressive gases (EN 437: Families 1, 2, and 3). Special versions are available for aggressive gases, featuring FPM seals and a non-ferrous metal-free structure.

• Advanced Sealing Technology – Equipped with NBR-based rubber sealing (EN 549 certified) for secure and leak-proof gas applications.

• Backpressure Sealing – Meets EN161 Group 2 and Class A backpressure sealing requirements, ensuring enhanced safety.

• ATEX Explosion-Proof Versions – Available for Zones 2 and 22, in compliance with the 2014/34/EU Directive.

• Failsafe Operation – The valve automatically closes when the power supply is cut off, making it an intrinsically safe solution.

• Continuous Service Capability – Designed for heavy-duty cycle operation and 100% ED continuous service.

• Adjustable Flow Control – Features maximum flow rate and start flow rate adjustments for improved efficiency.

• Integrated Fine Mesh Filter – Protects internal components from contamination (except for 6-bar models).

• Pressure Gauge Ports – Comes with ¼” pressure gauge ports on both inlet and outlet chambers (flanged models only), allowing for precise monitoring and easy integration with pressure switches or leakage testers.

• IP54 Standard Protection – Resistant to dust and water, with an optional IP65 upgrade for enhanced durability.

• Flexible Installation Options – Available with a terminal box or ISO 4400 plug, both equipped with secure cable glands to prevent dirt and water ingress.

• Corrosion-Resistant – Features advanced impregnation and surface treatments, ensuring resistance to mechanical, chemical, and thermal stress.

• Factory-Tested for Quality – 100% tested using computerized testing machinery, guaranteeing reliability and performance.

Technical Specifications

Connection Types:

• Internal Threaded:

  • ISO 7-1 (Rp3/8 to Rp2½)

  • ANSI-ASME B1.20 (3/8” NPT to 2½” NPT)

• Flanged:

  • ISO 7005 PN16 (DN40 to DN80)

  • ANSI-ASA-ASME B16.5 Class 150 (2” to 3”)

Voltage Ratings:

• 230 VAC, 120 VAC, 110 VAC (50/60 Hz)

• 24 VAC/DC

• Voltage tolerance: -15% to +10%

Temperature Range:

• Ambient & Media: -15°C to +60°C (+5°F to +140°F)

Operating Pressure:

• 200 mbar (3 psi), 360 mbar (5 psi), 500 mbar (7 psi), 6 bar (90 psi)

Body Test Pressure:

• 1 bar (15 psi), 9 bar (130 psi) for 6-bar models

Response Time:

• Closing time: < 1 second

• Opening time: Adjustable

Gas Strainer:

• 600 μm metal mesh (except for 6-bar models)

Protection Class:

• IP54 (NEMA 3) / Optional IP65 (NEMA 4) with cable

Cable Gland Sizes:

• M20x1.5 for terminal box

• PG9 for ISO plug

Wire Cross-Section:

• Terminal Board: Up to 2.5 mm² max. (AWG 12)

• ISO Plug: Up to 1.5 mm² max. (AWG 14)

Electrical Safety:

• Class I (EN 60335-1)

Coil Insulation & Thermal Resistance:

• Coil winding insulation: Class H (200°C / 392°F)

• Coil thermal resistance: Class F (155°C / 311°F)

Materials in Contact with Gas:

• Aluminum alloy, Brass, Stainless steel, Plated steel, Anaerobic adhesive, Nitrile rubber (NBR), Fluoroelastomer (FPM), Polytetrafluoroethylene (PTFE)