Motorized Gas Valve Actuator - Class A, EN 161, Slow Open/Quick Close

The HONEYWELL KROMSCHRODER ACT,M9S /B, VK is a valve actuator rated for compatibility with Class A gas safety valves as specified by EN 161. This actuator is suitable for automatic shut-off applications and configured to remain in the closed position when de-energized. It is equipped with slow opening and quick closing mechanisms; compatible with systems requiring control of gas or air flow. The unit is EU certified and offers various configurations to accommodate different operational requirements.

Key features include:

• Two-step operation (VK..Z variant)
• GGG 40 housing option (VK..G) for specific system compatibility
• Optional stronger drive variants (VK..H); refer to specifications for pressure ratings
• Explosion-proof design options (VK..X) compliant with applicable standards for zone 1 and 2 hazardous areas
• Nominal diameter range: DN 40 to DN 250
• Connection types: threaded or flanged
• Pressure range: maximum from 230 mbar up to 8 bar
• Mains voltage compatibility: 100 V AC to 220/240 V AC
• Housing materials: AlSi or GGG 40; electrical connection via terminals or standard plug/socket Additional versions are available with flow adjustment, position indicator, holding relay for manual restart, and Viton valve disc seal.