UNDERFLOOR TRUNKING SYSTEM

SPECIFICATIONS

UNDERFLOOR METAL TRUNKING

 

 

W x H (mm)

No of compartments

Model

150x25

1

UF150

150x25

2

UF150/2

200x25

2

UF200/2

225x25

2

UF225/2

225x25

3

UF225/3

275x25

3

UF275/3

300x25

3

UF300/3

METAL TRUNKING

Davis Underfloor Trunking is produced from pre-galvanized steel sheets in accordance with BS 4678. This method of construction utilizing channels avoids damage to its galvanized coating to prevent corrosion. This also adds strength to the section whilst allowing site adaptation, where necessary. The individual channels are held Together by clamping saddles with connecting saddles for ducting joints. The trunking is produced in standard 2.44 meter, lengths. Each trunking comes with 2 clamping saddles and a connecting saddle.

SPECIFICATIONS

Pre-galvanized steel sheet to BS EN10142: 1991 (Z275NAC) or JIS G3302: 1994 (Z27).

Body and Cover 1.6mm

Other Underfloor Trunking sizes are also available. Please contact our sales office for further details.



uPVC TRUNKING

W x H x T (mm)

No of compartments

Section Rectangular

50x25x2.5

1

P5025

75x25x2.5

1

P7525

75x25x3.2

1

P7532

75x38x3.2

1

P7532/38

100x38x3.2

1

P10032/38

MATERIAL SPECIFICATIONS

Material: 

High impact uPVC plastics

Std. Length:

2.9 metres

Std.Packing:

10 length per bundle

Note: 

Pre-cut lengths can be arranged subject to price confirmation and availability



VERTICAL ACCESS BOX

For Trunking
W x H (mm)

No of compartments

For uPVC Trunking

For Metal Trunking

150x25

1

UFV150/1/U

UFV150/1

150x25

2

UFV150/2/U

UFV150/2

225x25

2

UFV225/2/U

UFV225/2

225x25

3

UFV225/3/U

UFV225/3

275x25

2

UFV275/2/U

UFV275/2

275x25

3

UFV275/3/U

UFV275/3

300x25

2

UFV300/2/U

UFV300/2

300x25

3

UFV300/3/U

UFV300/3

375x25

3

UFV375/3/U

UFV375/3

JUNCTION BOX

TYPICAL 3-COMPARTMENT FLYOVER

L x W x H (mm)

No of compartments

Model

Max. Trunking Entry (W x H)

250x250x56

2

CP460/2

225x25

250x250x56

3

CP460

225x25

The Junction Box is designed to access the underfloor trunkings to the surface of the screed. The Junction box consists of three main components:

  • A Basic Box
  • A two-piece Flyover
  • A Trap and Frame

The basic box comes complete with a steel throw-away screeding lid, thus preventing ingress of screed into the box during screeding and acts as a screed depth datum. The basic box is factory set to suit the 56mm screed depth.

The flyover can be supplied in two or three compartments. The flyover is constructed from pre-galvanized steel sheet. Due to electromagnetic interferences the use of plastic flyovers is not recommended. This is to comply with the latest I.E.E regulations. A two-piece flyover can assist with the cable installation.

The trap and frame are divided into 6mm recess for carpet finish (flange edge) and 9mm for tile finish (trim edge). For 6mm recess, the trap is constructed from high pressure die-cast alloy and the frame from engineering plastics (Nylon 66). For 9mm recess, both the trap and frame are also constructed from high pressure die-cast alloy. The depth of the box can be adjusted from 56mm to 72mm.

SPECIFICATIONS

Pre-galvanized steel sheet to BS EN10142: 1991 (Z275NAC) or JIS G3302: 1994 (Z27)

Basic Box side plate 1.0mm

Basic Box base plate 1.6mm

Pillar support - High pressure die-cast alloy

6mm RECESSED JUNCTION BOX



9mm RECESSED JUNCTION BOX

L x W x H (mm)

No of compartments

Model

Max. Trunking Entry (W x H)

125x125x56

2

TF125

100x25

250x250x56

2

TF460/2

225x25

250x250x56

3

TF460

225x25

300x300x56

3

TF360

275x25

300x300x56

3

TF360S

300x25

SERVICE BOX

9mm RECESSED JUNCTION BOX

L x W x H (mm)

No of compartments

Model

Max. Trunking Entry (W x H)

125x125x56

2

CP470/2

225x25

250x250x56

3

CP470

225x25



9mm RECESSED SERVICE BOX

L x W x H (mm)

No of compartments

Model

Max. Trunking Entry (W x H)

250x250x56

2

TF470/2

225x25

250x250x56

3

TF470

225x25

300x300x56

3

TF370

275x25

300x300x56

3

TF370S

300x25

The Underfloor Service Box consists of three main components :

  • A Basic Box
  • A Service Trap and Frame
  • An Epoxy-coated service outlet panel

The basic box comes complete with a steel throw-away screening lid, thus preventing ingress of screed into the box during screeding and act as a screed depth datum. The side plates of the basic box are designed to be used for trunking and conduit entries. The perforated tab may be raised to allow the trunking to be put into place. Alternatively, 20mm conduit entries may be utilized by simply removing the "knockouts". The basic box is factory-set to suit the 56mm screed depth. The depth of the box can be adjusted from 56mm to 72mm.

The service trap and frame come with 6mm recess for carpet finish (flange edge) and 9mm for tile finish (trim edge). For 6mm recess, the trap is constructed from high pressure die-cast alloy and the grommets with cable retainers are hinged on to the trap as well as being fully independent of the frame. The light grey coloured frame, grommets, handles and hinges are moulded from engineering plastic (Nylon 66) which gives greater mechanical strength, and is impact resistant as well as fire retardant. For 9mm recess both the trap and frame are constructed from high pressure die-cast alloy. The cable retainer is flushed with the trap and can be easily retreated to close/flush position when the service box is not in use.

Standard epoxy-coated outlet panels suitable for power, voice and data will be provided according to suppliers' requirements.

SPECIFICATIONS

Pre-galvanized steel sheet to BS EN10142: 1991 (Z275NAC) or JIS G3302: 1994 (Z27)

Basic Box side plate 1.0mm

Basic Box base plate 1.6mm

Pillar support - High pressure die-cast alloy


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