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Fire protection for drain technology

Proper floor drain protection

If buildings catch fire, floor drains are potential weak spots through which fire, smoke and toxic gases can spread from room to room. For this reason, regional German building regulations prescribe suitable preventative fire protection measures in drain technology. Find out the most important aspects of how to protect floor drains professionally against the effects of fire in order to guarantee fire safety in your building and prevent liability claims.

When planning your building, please take the applicable building code, pipeline systems directive (LAR) and regulations from standard DIN 4102 into account. If you are in any doubt, please consult a specialist fire protection planner.

Floor drains as a risk factor in the event of a fire

How quickly a fire spreads in a building depends on how long the room boundaries withstand the flames and the smoke and gas particles these produce. Insufficiently protected floor drains conceal several risks in this respect:

Smoke/gas emission through leaks in and around the floor drain
Fire spreading to other rooms due to the draining system “burning away”
Heat transmission and ignition of combustible materials through non-combustible draining objects

Fire resistance classes of floor drains

Different fire resistance classes in accordance with DIN 4102 are prescribed depending on the federal German state, type of building and installation location. The number value of the fire resistance class specifies how long a tested component must be able to withstand a fire in minutes. The fire resistance classes relevant for floor drains are:

  • F30 (“fire retardant”)
  • F60 (“highly fire retardant”)
  • F90 (“fire resistant”)
  • F120 (“highly fire resistant”)

Always heed the specifications in your project-specific fire protection concept.

Fire protection measures for floor drains

On the one hand, floor drains are protected against fires by smoke gas-tight odour traps and closures between core drilling and drain body (by means of suitable filling or passage seal). On the other, special fire protection inserts are used. These block the path of flames, smoke and toxic gases between one room and the next.

How does a fire protection insert work?

A fire protection insert is inserted into the pipe socket on the underside of a floor drain. It is made of heat-sensitive material which swells up as soon as it comes into contact with fire and thus seals the drain.

Pipe becomes loose due to extreme heat development
Fire-protection insert swells up as soon as it comes into contact with fire
Drain is sealed and thus prevents further fire damage

Fire-Kit & Quick-Fit: fire protection for KESSEL drains

With the fire and smoke gas protection insert Fire-Kit and the passage seal Quick-Fit, our range includes suitable accessories for the proper sealing of KESSEL drains against fire. The Fire-Kit ensures the fire-resistant closure of the drain in the event of a fire, while the passage seal Quick-Fit represents a simple-to-install alternative to alternative filling materials for sealing core drilling. The integrated fire protection mass seals all and any leaks between the drain body and the core drilling in the event of fire. Both Fire-Kit and Quick-Fit fulfil fire resistance class R120 for pipe penetrations.

Approval for fire-protection insert Fire-Kit

Our fire-protection insert Fire-Kit has both general technical approval (abZ) and general type approval (abG) and is thus a good and safe supplement to the KESSEL floor drains.

  • General technical approval no. Z-19.17-1719
  • General type approval no. Z-19.53-2414

Where is this protection not required?

At some installation locations, the model building regulation (MBO) allows you to dispense with preventative fire protection measures in floor drains.

In one-family or two-family houses (detached)
Floor drain in a floor directly above soil
In horizontal outlets (only under specific conditions)

Product Details: Fire-Kit

Product Details: Quick-Fit

 

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