Schlüter®-KERDI-DRAIN | Function | Schlüter-Systems
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Schlüter®-KERDI-DRAIN

Application and Function

Schlüter®-KERDI-DRAIN is a floor drain system for the simple and secure connection of bonded waterproofing membranes to the drainage system of buildings. Bonded waterproof layers, which are recognised by the ZDB (German Contractors Association) notification as current state of technology. The Schlüter®-KERDI Collar is attached to the large, trapezoid-perforated, and fleececoated adhesive flange of the thin-set insert as a sealing connection to the bonded waterproofing assembly.

Schlüter®-KERDI-DRAIN products have a modular structure and can be individually assembled to match every requirement. A variety of grate designs can be combined with different vertical or horizontal drain body with or without odour traps.

Schlüter®-KERDI-DRAIN-STYLE offers various grate designs in conjunction with a virtually invisible contour frame.

Schlüter®-KERDI-DRAIN-BASE is an especially low floor drain that is suitable for installation in barrier-free shower designs created with conventional method or with Schlüter®-KERDI-SHOWER floor components.

Complete sets of Schlüter®-KERDI-DRAIN are available in 3 variants for the installation of floor drain systems.


Schlüter®-KERDI-DRAIN

Installation of Schlüter®-KERDI-DRAIN

Installation of Schlüter®-KERDI-DRAIN with drain casing

  1. The Schlüter®-KERDI-DRAIN drain casing (a) is integrated into the floor assembly and connected to the drainage system (Fig. 1).
  2. If required, sound or heat insulation may be installed (Fig. 2).
  3. The construction cover of the drain housing (Fig. 3) is removed and the thin-set insert Schlüter®-KERDI-DRAIN (b) is cut to the height of the floor assembly (Fig. 4). The unit is set on top of the floor drain (Fig. 6) and pushed into place (using a lubricant if required). Note on Fig.6: To allow for sufficient height movement of coverings with insulation, cut the neck to such a length that it does not sit on the bottom of the drain housing.
  4. The screed is then placed and aligned flush with the trapezoid-perforated bonding flange of the Schlüter®-KERDI-DRAIN thin-set insert (b).
  5. By adhering the Schlüter®-KERDI Collar (c), a waterproof connection to the screed surface is achieved (Fig. 7). The connecting waterproof layer, consisting of Schlüter®-KERDI or a trowel-applied system, is connected to the collar with a sufficient overlap. If Schlüter®-DITRA 25 is used as the waterproof layer, it is carried to the edge of the perforated bonding flange. Then, ensuring solid coverage, Schlüter®-KERDI Collar is set, overlapping the DITRA 25 membrane. Schlüter®- KERDI Collar is best adhered with the sealing adhesive Schlüter®- KERDI-COLL-L.
  6. Coatings or tiles can be applied as surface coverings. The height of the grate (e) is adjusted via the adjustment collar (d). The grate is set with adhesive and aligned flush with the covering (Fig. 8). Since the neck of the grate (e) has a smaller diameter than the thin-set insert (b), the grate can be positioned to match the joint pattern of the tile covering.
Note: Schlüter®-KERDI-DRAIN can also be installed in wood constructions. Further details are available upon request.

Notes
Schlüter®-KERDI-DRAIN requires no special maintenance or care. Stainless steel surfaces exposed to the environment or aggressive substances should be cleaned periodically using a mild household cleaner. Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric and hydrofluoric acid. The stainless steel grate and the odour trap may be removed to clean the drain casing and the drain pipes.

Installation of Schlüter®- KERDI-DRAIN-BASE

  1. The drain casing Schlüter®-KERDIDRAIN-BASE (a) is placed on the support structure (using suitable impact insulation if required) and connected to the drainage pipe. If necessary, the supplied adapter piece DN 40/50 (b) is used for this purpose.
  2. The screed is installed in such a way that the trapezoid-perforated flange of the Schlüter®-KERDI-DRAIN thin-set insert (c) is flush with the upper edge of the screed (see Fig. 1).
  3. Attaching Schlüter®-KERDI Collar (d) with the sealing adhesive Schlüter®KERDI-COLL-L creates a waterproof transition to the screed area. The connecting waterproof layer, consisting of Schlüter®-KERDI or a trowel-applied system, is connected to the collar with a sufficient overlap. If Schlüter®-DITRA 25 is used as the waterproof layer, it is carried to the edge of the perforated bonding flange. The Schlüter®- KERDI Collar is now embedded with full overlap on the DITRA 25 mat. Schlüter®- KERDI Collar is best adhered with the sealing adhesive Schlüter®- KERDI-COLL-L. The corresponding installation instructions must be observed if Schlüter®-KERDIDRAIN-BASE is installed together with Schlüter®-KERDI-SHOWER (Fig. 2).
  4. Suitable covering materials include coatings or ceramic tiles (covering thicknesses 3-15 mm). Without using lubricants, the stainless steel grate (Fig. 3) is pushed in place. The grate is set with adhesive (Fig 4) and aligned flush with the covering.
  5. Prior to using the drain, remove the stainless steel grate and push down on the odour trap to check its positioning (Fig. 5; if necessary, apply some lubricant to the O-ring).
Note:
Schlüter®-KERDI-DRAIN can also be installed in wood constructions. Further details are available upon request.

 

Notes:
Schlüter®-KERDI-DRAIN-BASE requires no special maintenance or care. Stainless steel surfaces exposed to the environment or aggressive substances should be cleaned periodically using a mild household cleaner. Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric and hydrofluoric acid. The stainless steel grate and the odour trap may be removed to clean the drain casing and the drain pipes..

Installation Schlüter®-KERDI-DRAIN thin-set floor drain

  1. After the installation of impact or heat insulation, if applicable, the thin-set floor drain (a) is positioned in accordance with the height of the floor assembly and connected to the drainage system.
  2. The screed is then installed in such a way that the trapezoid-perforated flange of the Schlüter®-KERDI-DRAIN insert (Fig. 1) is flush with the upper edge of the screed.
  3. By adhering the Schlüter®-KERDI Collar (b) with the sealing adhesive Schlüter®KERDI-COLL-L a waterproof connection to the screed surface is achieved (Fig. 2). The connecting waterproof layer, consisting of Schlüter®-KERDI or a trowel-applied system, is connected to the collar with a sufficient overlap. If Schlüter®-DITRA 25 is used as the waterproof layer, it is carried to the edge of the perforated bonding flange. The Schlüter®- KERDI Collar is now embedded with full overlap on the DITRA 25 mat. Schlüter®- KERDI Collar is best adhered with the sealing adhesive Schlüter®- KERDI-COLL-L.
  4. Coatings or tiles (Fig 3) can be applied as surface coverings.
Note:
Schlüter®-KERDI-DRAIN can also be installed in wood constructions. Further details are available upon request.
Notes
Schlüter®-KERDI-DRAIN requires no special maintenance or care. Stainless steel surfaces exposed to the environment or aggressive substances should be cleaned periodically using a mild household cleaner. Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric and hydrofluoric acid. The stainless steel grate and the odour trap may be removed to clean the drain casing and the drain pipes

 

Installing of the Schlüter®-KERDI-DRAIN covering support

  1. The installation of the covering can begin as soon as Schlüter®-KERDI Collar has been adhered with the sealing adhesive Schlüter®-KERDI-COLL-L. Suitable covering materials include ceramic tiles or natural stone.
  2. Covering support with substructure and adjustment collar. Thin-bed mortar is applied to the thin-set floor drain (Fig. 1a). The stainless steel frame with the perforated holes is placed into the recessed openings of the adjustment collar (Fig. 2a) and embedded it in the thin-bed mortar (Fig. 3a). Covering support with substructure and integrated odour trap. The stainless steel grate with neck is placed into the thin-set insert (Fig. 1b), set in mortar (Fig. 2b), and then pushed in to the maximum depth (Fig. 3b).
  3. Once the spacer has been placed, the installation of the covering can begin. It is important to install the covering directly adjoining the spacer at the frame (Fig. 4). Any excess mortar must be wiped off after removing the spacer.
  4. Place thin-bed adhesive on the covering support (Fig. 5) and adhere it to the matching covering cut-out of 8.2 x 8.2 cm (Fig. 6) to create a peripheral water drainage gap of at least 5 mm (Fig. 7).

Note:
For neat appearance, it is recommended to use a wet cutting machine for custom cuts and to bevel the edges. The installation instructions included with the drain casing also must be observed.


Schlüter®-KERDI-DRAIN

Material

Depending on the type, drain bodies are made of high-impact polypropylene (PP) or acrylonitrile butadiene styrene (ABS). The thin-set insert consists of acrylonitrile butadiene styrene (ABS) with a bonding flange that features a fleece-covered surface.

Schlüter®-KERDI Collar is a crack-bridging waterproofing membrane made of soft polyethylene (PE) and covered on both sides with a special fleece webbing to provide a solid bond to the tile adhesive. It enables the secure connection of the thin-set insert to the bonded waterproofing assembly in the floor area. In conjunction with the waterproofing systems Schlüter®-KERDI, Schlüter®-DITRA 25, Schlüter®-DITRAHEAT, Schlüter®-KERDI-BOARD as well as Schlüter®-KERDI-SHOWER and the associated system sealing adhesives Schlüter®-KERDI-COLL-L or Schlüter®-KERDI-FIX, this results in certified bonded waterproofing assemblies with a connected drainage.

Schlüter®-KERDI-DRAIN is a system component that complies with the German waterproofing standard DIN 18534 and features national technical approval (abP) in conjunction with the above-mentioned Schlüter systems. The moisture load groups according to abP can be found in the respective product data sheets. Pursuant to ETAG 022 (watertight covering kits), Schlüter®-KERDI-DRAIN is a component of a system with European Technical Approval (ETA). The above-listed Schlüter products tested with KERDI-DRAIN bear a CE mark. The stainless steel grate is made of V2A (material no. 1.4301= AISI 304), but can also be supplied in stainless steel V4A (material no. 1.4404 = AISI 316L).

Material properties and areas of application:

The drain casings, thin-set inserts, and covers are classified as K3 pursuant to DIN EN 1253, “Drains for buildings.”
This classification refers to surfaces without vehicular traffic, such as wet areas in apartments, senior residences, hotels, schools, washing and shower installations, as well as terraces, patios, and balconies.
Drains installed in areas that may be exposed to freezing temperatures must not have an odour trap. If an odour trap is required, it must be installed at a different location where it is protected from freezing, for example within a building.
The horizontal drain casing of the floor drain set KD BH 50 GV has an inlet and an outlet. The inlet is covered with a factory-installed cap, which can be removed and connected, e.g. to a sink, in order to ensure regular refilling of the odour trap.
Grates made of stainless steel 1.4301 (V2A) or 1.4404 (V4A) are particularly well suited for applications that, in addition to high mechanical stresses, require resistance to chemicals such as acidic or alkaline media, cleaning agents, or de-icing salts. Depending on the anticipated stresses, customers can choose between the alloy materials 1.4301 or 1.4404. The use of 1.4404 is recommended if consistent chemical exposure is expected, for example in the case of swimming pools (fresh water). Even stainless steel is not resistant to all chemical stresses, and may be affected by, e.g., hydrochloric and hydrofluoric acid or certain chloride and brine concentrations. In certain cases, this also applies to seawater pools. Special anticipated stresses should therefore be verified in advance.

 


Schlüter®-KERDI-DRAIN

Maintenance

Schlüter®-KERDI-DRAIN / -KERDI-DRAINBASE requires no special maintenance or care. Stainless steel surfaces exposed to the environment or aggressive substances should be cleaned periodically using a mild household cleaner. We recommend the use of the stainlesssteel cleaning polish Schlüter®-CLEAN-CP.

Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric and hydrofluoric acid. The stainless steel grate and the odour trap may be removed to clean the drain body and the drain pipes.


Schlüter®-KERDI-DRAIN

Here you will find individual parts for special solutions or replacements.

Components and Sets


Schlüter®-KERDI-DRAIN-DR

Schlüter-KERDI Collar for sealing connections between Schlüter-KERDI-DRAIN and Schlüter-KERDI-SHOWER

Schlüter®-KERDI-DRAIN-DR


Schlüter®-KERDI-DRAIN-DR Tables 37085


Schlüter®-KERDI-DRAIN-KD 10 SF

Schlüter®-KERDI-DRAIN-KD 10 SF is a dirt trapping screen that simplifies the regular cleaning of floordrains.

Schlüter®-KERDI-DRAIN-KD 10 SF


Schlüter®-KERDI-DRAIN-R / -RL

Schlüter®-KERDI-DRAIN-R / -RL are renovation grates that can be installed into the tile covering above existing floor drains in building renovation projects.

Schlüter®-KERDI-DRAIN-R / -RL


Schlüter®-KERDI-DRAIN-R / -RL


Schlüter®-KERDI-DRAIN-BASE

Schlüter®-KERDI-DRAIN-BASE is a drain body for combination with the insert KD BV 100 and a grate/frame set with odour trap and gasket seal.

Schlüter®-KERDI-DRAIN-BASE


Schlüter®-KERDI-DRAIN Grates

Grates without frame for replacement in existing installations.   

Schlüter®-KERDI-DRAIN Grates

Note:
Covers are only interchangeable within the corresponding frame design.

Note:
L x B = cm corresponds to frame size


Schlüter®-KERDI-DRAIN-STYLE

Schlüter®-KERDI-DRAIN-STYLE are elegant design covers made of brushed stainless steel without frames to replace or exchange in existing installations. The design covers are available in the variants FLORAL, CURVE and PURE.

Schlüter®-KERDI-DRAIN-STYLE

Note:
The design covers are only interchangeable within the “KERDI-DRAIN-STYLE” design series.

Note:
L x B = cm corresponds to frame size


Schlüter®-KERDI-DRAIN-BS

Schlüter®-KERDI-DRAIN-BS is an approved fire protection insert, which prevents the spread of fire between floor levels in conjunction with the floor drain set KD BAV 50 GVB.

Schlüter®-KERDI-DRAIN-BS


Schlüter®-KERDI-DRAIN-ZBS

Schlüter®-KERDI-DRAIN-ZBS is a transition seal for fire protection. It is an alternative to mortar and in conjunction with the floor drain set KD BAV 50 GVB serves as a fire insulation seal of the core hole drilling, while also preventing sound bridges.

Schlüter®-KERDI-DRAIN-ZBS


Schlüter®-KERDI-DRAIN Sets

Schlüter®-KERDI-DRAIN Sets are complete sets for installing a point drain as part of a wetroom, or shower system with reliable connections to bonded waterproofing assemblies with Schlüter®-KERDI or other bonded waterproofing systems in interior areas. Horizontal and vertical connection options are available along with an alternative grate design for vertical connections.

Schlüter®-KERDI-DRAIN Sets

KD 10 H40 GV ED1 S contains:

  • horizontal connection floor drain Schlüter®-KERDI-DRAIN-BASE DN 40/50 (drain capacity of 0.4 l/s), min. assembly height: 75 (70) mm
  • grate and frame combination with design grate 1 of stainless steel with screws, size 10 x 10 cm
  • grate with odour trap and lip seal


KD 10 V50 GV ED1 S contains:

  • vertical connection floor drain Schlüter®-KERDI-DRAIN DN 50 (drain capacity of 0.6 l/s) 
  • integrated odour trap
  • grate and frame combination with design grate 1 of stainless steel with screws, size 10 x 10 cm
  • incl. grate extension, height adjustment and dirt trap

 

KD 10 V50 GV ED3 contains:

  • vertical connection floor drain Schlüter®-KERDI-DRAIN DN 50 (drain capacity of 0.6 l/s)
  • integrated odour trap
  • grate and frame combination with design grate 3 of brushed stainless steel, size 10 x 10 cm
  • incl. grate extension, height adjustment and dirt trap

Schlüter®-KERDI-DRAIN

Product combinations

Here you will find an overview of all combination options for grate/frame sets and floor drain sets.

Schlüter®-KERDI-DRAIN is available with or without odour trap to match horizontal and vertical drainage in interior and exterior areas. Select from a large number of grate designs and drain variants!

High-gloss stainless steel to match chrome finishes


Schlüter®-KERDI-DRAIN


BIM Objects for Architects and Specifiers

BIM Objects can be downloaded directly from the National BIM Library by following the below link:



Schlüter®-KERDI-DRAIN

Exterior areas

Can I use the floor drains in exterior areas?

Show answer

Floor drains without odour traps can be used without restriction in exterior areas. If the floor drain has an odour trap, it must be removed for installation in exterior areas. Schlüter-Systems is the only manufacturer to offer an odour trap that is part of the grate-frame assembly and is therefore removable.

Drainage capacity

What are the drainage capacities of assemblies created with Schlüter®-KERDI-DRAIN or Schlüter®-KERDI-LINE?

Show answer

  • Schlüter®-KERDI-LINE-H DN 40: 0.5 l/s
  • Schlüter®-KERDI-LINE-H DN 50: 0.6 l/s
  • Schlüter®-KERDI-LINE-V GSE: 1.0 l/s
  • Schlüter®-KERDI-LINE V GE: 0.8 l/s
  • Schlüter®-KERDI-DRAIN DN 40 horizontal, and odour trap: 0.4 l/s
  • Schlüter®-KERDI-DRAIN DN 50 horizontal, with odour trap: 0.6 l/s
  • Schlüter®-KERDI-DRAIN DN 50/70 horizontal, with odour trap: 0.8 l/s
  • Schlüter®-KERDI-DRAIN DN 50 horizontal, without odour trap (for exterior applications): 1.4 l/s
  • Schlüter®-KERDI-DRAIN DN 50 vertical, with odour trap / with substructure: 0.6 l/s / 0.8 l/s
  • Schlüter®-KERDI-DRAIN DN 50 vertical, without odour trap: 1.4 l/s

Floor coating

Can I use your drainage systems with floor coatings that have low assembly heights?

Show answer

Technically, a linear drainage system requires an assembly height of at least 5 mm. With our point drainages, the grate unit can be installed flush with the floor.

Other waterproofing systems

Can I connect to other waterproofing systems?

Show answer

In principle, you can work with other waterproofing systems (e.g. troweled waterproofing solutions), but they may not contain any solvents.

Contact Schlüter-Systems Ltd

Units 3-5 Bardon 22,
Beveridge Lane, Coalville,
Leicestershire, LE67 1TE
Phone: +44 (0) 1530 813396

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Further information

on our products and specifications can be found here:

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Legend "Products"

We use the following symbols and abbreviations to illustrate our price charts.

image image

= new products

= radius perforation available   

 

Dimensions:
H = height
L = length
B = width


Packaging:
PL = euro pallet 
KV = case packaging 
BV = bundle (there is a 10 item bundle packaging for all the profile types)
P = box packaging 
R = roll
St. = unit