CONSTRUCTION CHARACTERISTICS:

• The electromagnetic group is a sealed unit which cannot be repaired; it should be replaced in case of failure.
• Ferromagnetic core and disc are made with a very high magnetic permeability alloy.
• The shutter is made in NBR (improved) or silicon rubber (higher temperature)  according to working temperature and other customer required conditions.
• Three basic sizes are provided (Series 4000, 4200 and 4800) according to the gas flow required by the valve in which it is used.

WARNINGS AND INSTALLATION DATA:

•  EITAR groups must not be exposed to humidity, dust, dirt and/or shavings.
• Special care is recommended for gas supply system. Organic and inorganic foreign elements  can limit the appropriate functioning of the  electromagnetic group.
• Before assembly, the shutter and shutter surroundings must be cleaned; it should be free from dirt.
• During assembly, no liquid, grease, glue or sealer can enter into the electromagnetic group case.
• Maximum adjusting torque on the magnetic groups: 25 Nm.
• Maximum adjustment torque in the thermocouple: 4 Nm.

PERFORMANCE:

• For any type of gas.
• Operating current range: 40 mA to 200 mA.(C.C.) .
• Holding current less than 200 mA. and release current higher than 40 mA. Under special requirements different current range can be supplied.
• Internal electrical resistance:  16 to 21 milliohm. (depending on model)