Fema DWR25 pressure switch

Fema DWR25 gas pressure switches designed for steam, hot water, fuel gases, and liquid fuels. Honeywell DWR25 pressure switch certified for gas applications according to DVGW G260 and EN 1854 standards. Honeywell Fema DWR25 pressure switch must be used within the specified parameters. High-quality stainless steel parts enable use in various environments, but a chemical resistance test is required before selection.

Fema DWR25 differential pressure switch technical data

• Setting range: 4-25 mbar
• Switching differential: 1.0 mbar
• Maximum working pressure: 50 mbar
• ambient temperature: -25 to 70 °C
• ambient temperature: 70 °C
• The difference in the sizes of materials operating at contact pressure (average values) when pulling the medium
• Switching: Single-pole switching
• Switching capacity: 8 (5) A, 250 V AC
• Installation position: Vertical and horizontal
• Pressure connection: External thread G 1/2” A (pressure gauge connection) according to DIN 16288 and internal thread G 1/4” according to ISO 228, Part 1. When working with gas, the internal thread is allowed only at pressures up to 4 bar. If the pressure is > 4 bar, use a flat O-ring.

Honeywell DWR25 pressure switch standards and directives

• EN 13611
• DIN EN 1854
• EU/2009/142/EC (GAD)

EU/94/9/EC (ATEX)