Gas Pressure Switch – DG Series, 3–500 mbar, Diaphragm

The HONEYWELL KROMSCHRODER SW, PRESS, GAS, DG 40VC9 6W /B is a diaphragm-based gas pressure switch rated for use with positive pressure applications involving compatible gases including natural gas, biogas, air, and flue gases. It features a micro switch mechanism that is constructed without the use of silicone components and includes adjustable switching points via setting dial or available with factory-set options.

Key features include:

• Pressure range: 3 to 500 mbar (1.2 to 144"WC)
• Pneumatic connections: Internal Rp 1/4 (single or dual), external Rp 1/8 or Rp 1/4
• Contact types: Silver contacts (24–250V AC, 0.05–5A) and gold contacts (5–250V AC, 0.01–5A) for CE version; UL versions with gold contacts (max 30V AC, 0.05A) and silver contacts (30–240V AC, up to 5A)
• Electrical connection: Four-pin plug and socket
• Certifications: EU certified, UL listed, FM approved, AGA approved
• Construction is free of silicone