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Our portfolio includes both pneumatically and electronically controlled gas valves for premixing and atmospheric gas burners.

The main use for our zero-pressure gas valves is in condensing boiler applications for domestic heating systems in the low to medium output range. Regardless of the suction pressure generated by the premixing blower, these gas valves always keep the offset pressure at zero and also compensate for pressure variations that arise in the supply network. The offset (shift in zero point) can be adjusted on the servo controller. At the same time, the desired gas quantity is adjusted using an integrated flow control element. Together these operations ensure precise adjustment of the air-gas ratio. Depending on the design, reference pressure can be connected to the servo controller if required.

Technical specifications

Permitted gas families

II + III (according to EN 437)

Maximum inlet pressure

65 mbar (CE), 0.5 psi (CSA)

Permitted ambient temperature

0 °C to 60 °C
(-15 °C to 70 °C on request)

Permitted storage temperature

-25 °C to 70 °C

Degree of protection

IP40 in combination with a suitable plug

Offset correction

±20 Pa

Minimum signal pressure

-30 Pa

Permitted orientation when installed

Coil orientation between standing upright and lying horizontally

Our valves at a glance

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Housing material: Aluminum
Electrical hookup: Connector housing with 5.08 mm contact spacing
Inlet (gas connection): 4x M5 mounting holes (hole spacing 36 mm)
Outlet: 4x M5 mounting holes (hole spacing 36 mm)
Safety valves: Valve class B/B as per EN161

Housing material: Aluminum
Electrical hookup: Connector housing with 4.20 mm contact spacing
Inlet (gas connection): External thread G3/4 or G1/2 (EN ISO 228) or 4x M4 mounting holes (optional)
Outlet: ebm-papst quick release
Safety valves: Coaxial design: Valve class B/C as per EN161

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Housing material: Aluminum
Electrical hookup: Connector housing with 4.20 mm contact spacing
Inlet (gas connection): External thread G3/4 or G1/2 (EN ISO 228) 
Outlet: ebm-papst quick release
Safety valves: Coaxial design: Valve class B/C as per EN161

Contact

Do you need help? Our specialists would be pleased to contact you.