GGW...A4: Differential pressure switches for gas, air, flue and exhaust gases
Differential pressure switches for gas, air, flue and exhaust gases
GGW…A4
GGW…A4-U
GGW…A4/2
GGW…A4-U/2
Technical description
The differential pressure switch GGW… A4 is an adjustable gas-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.
Applications
Differential pressure switch in furnace, ventilation, and air conditioning applications. Differential pressure switch: Suitable for employment with gas family 1, 2, 3, and other, neutral, gaseous media as well as air, smoke and exhaust gases. It does not contain any non-ferrous metals, suitable for gases of up to max. 0.1 vol % H2S, dry.
Certifications
EC type testing certificate as per:
• EC-Gas Appliances Regulation
• EC-Pressure Equipment Directive Pressure switches class ''S'' as per EN 1854.
Approvals in other important gasconsuming countries.
Function
Differential pressure switch operating in the over- and under-pressure ranges. The differential pressure acts on the membrane, pressing it against the force of the adjusting spring and against the microswitch. The pressure switch operates without outside power.
GGW…A4
GGW…A4-U
GGW…A4/2
GGW…A4-U/2
Technical description
The differential pressure switch GGW… A4 is an adjustable gas-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.
Applications
Differential pressure switch in furnace, ventilation, and air conditioning applications. Differential pressure switch: Suitable for employment with gas family 1, 2, 3, and other, neutral, gaseous media as well as air, smoke and exhaust gases. It does not contain any non-ferrous metals, suitable for gases of up to max. 0.1 vol % H2S, dry.
Certifications
EC type testing certificate as per:
• EC-Gas Appliances Regulation
• EC-Pressure Equipment Directive Pressure switches class ''S'' as per EN 1854.
Approvals in other important gasconsuming countries.
Function
Differential pressure switch operating in the over- and under-pressure ranges. The differential pressure acts on the membrane, pressing it against the force of the adjusting spring and against the microswitch. The pressure switch operates without outside power.
