Honeywell FEMA Ex Overpressure monitor - for hot water, steam, burnable gases, liquid fuels EX-DWR

漢威 EX-DWR系列 壓力開關 Honeywell FEMA Ex Overpressure monitor – for hot water, steam, burnable gases, liquid fuels EX-DWR

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  • 美國品牌
  • Honeywell FEMA Ex Overpressure Monitor EX-DWR
  • 特殊用途壓力開關
  • 適用於燃料氣體/和液體燃料（例如燃油），蒸汽系統，以及熱水系統(皆須符合各項標準規範)。
  • 防護等級IP65
  • 特殊規格產品，請來信詢問
貨號: EX-DWR 分類: , , , 標籤: , , ,

額外資訊

Kind of pressure

overpressure, relative
Pressure connection

External thread G 1/2 (pressure gauge connection) to DIN 16 288 and internal thread
G 1/4 to ISO 228 Part 1 (for gas applications internal thread permissible only up to 4 bar).
Switching device

Rugged housing (700) made of seawater resistant die cast aluminium.
Materials

Pressure bellows: Material no. 1.4571
Sensor housing: Material no. 1.4104 Switch
housing: GD AI Si 12 (DIN 1725)
Mounting position

Vertically upright
Ambient temperature at switching device

–20 to +60°C.
Medium temperature –25 to +60°C. The maximum medium temperature at the pressure sensor must not exceed the permitted ambient temperature at the switching device. Higher medium temperatures are possible provided the
above limit values for the switching device are ensured by suitable measures (e.g. siphon).
Mounting

Directly on the pressure line (pressure gauge connection) or on a flat surface with two 4 mm Ø screws.
Bursting pressure

For all types ≥ 100 bar, verified by TÜV test.
Contact arrangement

Single pole change over switch.
Switching capacity

250 VAC(ohm): 3A
250 VDC(ohm): 0.1A
24 VDC(ohm): 3A
Protection class

IP 65, only vertically upright
Ex protection

EEx de IIC T6
Component tested for

Steam (Systems according to TRD 604)
Hot water (Systems according to DIN EN12828)
Fuel gases (DVGW work sheet G 260)
Pressure tank (DIN EN764-7)
Function

Pressure monitor or pressure limiter (with external interlock)
Direction of action

For maximum and minimum pressure monitoring (DWFS, SDBFS)
Sensor

"of special construction" by testing with 2 million cycles.
Type

Ex-DWR06, Ex-DWR1, Ex-DWR3, Ex-DWR6, Ex-DWR625, Ex-DWR16, Ex-DWR25, Ex-DWR40
品牌

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