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You are here: Home1 / Blog2 / Liquid Media & Tank Management3 / All about heating oil installations4 / When do I need a diaphragm-controlled anti-siphon device?

When do I need a diaphragm-controlled anti-siphon device?

31. March 2016/in All about heating oil installations, Liquid Media & Tank Management
Approximate reading time: 1 minute

The diaphragm-controlled anti-siphon device prevents the fuel oil tank from emptying completely in the event of leaks in fuel oil consumer installations.

1551300If the maximum filling level in the tank is above the lowest point of the suction line on a fuel oil consumer installation, a safety device against siphoning, also called anti-siphon device (image) or anti-siphon valve must be installed. The diaphragm-controlled anti-siphon device prevents the entire quantity of fuel oil from escaping from the tank unnoticeably without auxiliary energy in the event of leaks in the line of fuel oil consumer installations. Without a safety device against siphoning, environmental hazards and considerable material damage would be the consequence.

Function of a diaphragm-controlled anti-siphon device

The switched on fuel oil feed pump generates a vacuum in the suction line. The vacuum causes a position change of the diaphragm, which in turn opens a sealing element. The fuel oil can now flow from the tank to the burner. If the pump no longer generates a vacuum or if the piping is leaking, the anti-siphon device closes and prevents the tank from draining.

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Alternative

An alternative to the diaphragm-controlled version is the solenoid valve anti-siphon device. By means of a solenoid valve, the safety device blocks the oil line when the burner is at a standstill and is normally closed. Once the burner pump has started up again, the anti-siphon device opens due to the control voltage applied.

Further information can be found in the assembly and operating manual.

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Approximate reading time: 8 minutes

Information regarding technical systems

This blog will never ask members of the public or unqualified persons to make changes to or fiddle around with technical systems themselves.

In accordance with the Industrial Safety Regulation (BetrSichV), a qualified person must take care of a system which requires monitoring.

A qualified person is someone who has the specific specialist knowledge required. This knowledge is gained by way of a professional apprenticeship, corresponding professional experience or current occupational activity.

Please note that the texts are based on information, regulations and standards for Germany. Please always check the rules and regulations in the relevant country of destination and consult specialists if necessary.

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Phone: +49 9332 404-0
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Website: www.gok.de

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