Differential pressure switches for air, flue and exhaust gases
Pressure switch for gas

LGW…A4
LGW…A4/2

Technical description
The differential pressure switch LGW… A4 is an adjustable differential pressure switch as per EN 1854 for automatic burner controls.
It is suitable for switching a circuit on, off or over on changes in actual pressure value relative to the set reference value.
The reference value (switching point) is adjusted on a setting wheel provided with a scale. The test nipple is integrated in metal housing as standard.

Application
Differential pressure monitoring in firing, ventilation and air-conditioning systems. Differential pressure switches: suitable for air, flue and exhaust gases. Pressure switches: suitable for gases of families 1,2,3 and other neutral gaseous media.

Approvals
EC type testing certificate as per:
• EC-Gas Appliances Regulation
• EC-Pressure Equipment Directive

Pressure switch Class ''S'' as per EN 1854.

Approvals in other important gasconsuming countries.