Product Description
Honeywell (FEMA) DWR6-206 is a minimum pressure limiter (mechanical pressure switch) with internal lockout, belonging to the DWR safety pressure monitoring series. It is calibrated for falling pressure. When pressure drops below the set threshold, the unit trips and latches. Manual reset is required after fault clearance. The rugged housing is seawater-resistant die-cast aluminium. It has passed 2 million operating cycle tests and holds TÜV & DVGW safety certifications. Designed for safety interlock protection on boilers and burner systems, it works for fuel gas, liquid fuel, hot water and steam systems.
Specifications
| Item | Specification |
|---|---|
| Model | DWR6-206 |
| Type | Minimum Pressure Limiter (internal lockout, manual reset) |
| Adjustment range | 0.5 ~ 6 bar |
| Switching differential | 0.17 ~ 0.35 bar |
| Max working pressure | 16 bar |
| Burst pressure | ≥100 bar |
| Pressure connection | External thread G1/2, internal thread G1/4 |
| Ambient temperature | -25℃ ~ +70℃ |
| Medium temperature | -25℃ ~ +70℃ |
| Electrical rating | SPDT, 10(6)A / 250VAC |
| Protection class | IP54 |
| Certifications | TÜV, DVGW G260, DIN EN12828, TRD604 |
Application
- Low-pressure protection for gas / oil pipelines of burners and industrial boilers; cuts off fuel supply at low pressure.
- Minimum pressure safety monitoring for hot water boilers and steam boilers.
- Safety pressure interlock for pressure vessels and thermal systems.
- Compatible with fuel gases (DVGW G260), liquid fuels, hot water and saturated steam.
- Safety circuit for HVAC & thermal equipment. The latch prevents automatic restart after trip for hazard mitigation.
DWR Series Models
Minimum Pressure Limiters (suffix -206): DWR06-206, DWR1-206, DWR3-206, DWR6-206, DWR16-206, DWR25-206, DWR40-206, DWR625-206
Maximum Pressure Limiters (suffix -205 with internal lockout): DWR06-205, DWR1-205, DWR3-205, DWR6-205, DWR16-205, DWR25-205, DWR40-205, DWR625-205
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