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Coils

Thirty years producing coils for pressure washer boilers and other sectors. Certified tube, hardened dies specific to each coil type, a constant product standard. Below are the models compatible with the main brands on the market: if yours is not listed, we make it to drawing or to sample.

Available models

Coils compatible with the main pressure washer brands on the market.

max 250 bar working pressure350 bar test pressure

Trex coil EHRLE

Coil compatible with Ehrle

Fits
EHRLE
Models
MODELLO HP ETRONIC
Dimensions
Ø est 310 · L 430 mm
Terminals
manicotto 3/8" · centres 295 mm
Tube ø × wall
17,2 × 2,35
Trex coil WAP

Coil compatible with Wap

Fits
WAP
Models
CS 800 · CS 830
Dimensions
Ø int 190 · Ø est 280 · L 480 mm
Terminals
18×1,5 · centres 240 mm
Tube ø × wall
17,2 × 2,35
Outer turns
21
Trex coil T95/1

T95/1

Fits
FASA / LAVOR
Models
KLIMAT SK2
Dimensions
Ø est 230 · L 330 mm
Terminals
3/8" – 1/2" · centres 70 mm
Tube ø × wall
17,2 × 2,35
Outer turns
15
Trex coil T2000/1

T2000/1

Fits
Alberti International
Models
AVEN JET · STARJET 7 NEW COMPACT · QUINJET
Dimensions
Ø int 180 · Ø est 265 · L 340 mm
Terminals
3/8" · centres 225 mm
Tube ø × wall
17,2 × 2,35
Outer turns
12
Trex coil T2000/2

T2000/2

Fits
Alberti International
Models
AVENJET · NEW STARJET · JOLLY · SUPERLUX
Dimensions
Ø int 180 · Ø est 265 · L 520 mm
Terminals
3/8" · centres 225 mm
Tube ø × wall
17,2 × 2,35
Outer turns
19
Trex coil T2000/3

T2000/3

Fits
Alberti International
Models
NEW STARJET · SUPERLUX
Dimensions
Ø int 180 · Ø est 265 · L 670 mm
Terminals
3/8" · centres 225 mm
Tube ø × wall
17,2 × 2,35
Outer turns
29
Trex coil T2007

T2007

Fits
Trex
Trex coil T3000/1

T3000/1

Fits
Trex
Trex coil T3000/2

T3000/2

Fits
Trex
Trex coil T3000/4

T3000/4

Fits
Trex
Trex coil KARKER 0

Coil compatible with Kärcher 0

Fits
Kärcher
Dimensions
Ø int 197 · Ø est 275 · L 365 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
12
Trex coil KARKER 1

Coil compatible with Kärcher 1

Fits
Kärcher
Models
HDS 500 CI · 501 C · 550 C · 555 C · 555 CI · 555 CS · 557 CI · 590 C · 600 C · 600 CI · 600 CS · 697 CI · 698 C · 698 CSX · 700 C · 790 C · 790 CI · 790 CS · 797 CI · 801 B · 890 C · 900 C
Dimensions
Ø int 197 · Ø est 275 · L 400 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
14
Trex coil KARKER 1/2

Coil compatible with Kärcher 1/2

Fits
Kärcher
Dimensions
Ø int 197 · Ø est 275 · L 420 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
spaced turns
Trex coil KARKER 2

Coil compatible with Kärcher 2

Fits
Kärcher
Models
580 · 610 · 650 · 690 · 750 · 760 · 800 B · 800 BE · 810 · 890 · 900 · 900 B · 990 · 1000 BE · 1000 DE · 1200 DE
Dimensions
Ø int 197 · Ø est 275 · L 440 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
17
Trex coil KARKER 2/3

Coil compatible with Kärcher 2/3

Fits
Kärcher
Models
HDS 698
Dimensions
Ø int 197 · Ø est 275 · L 480 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
19
Trex coil KARKER 3

Coil compatible with Kärcher 3

Fits
Kärcher
Models
HDS 650 · 655 · 695 · 695 S · 695 SX · 699 · 745 · 755 · 795 · 891 ST · 895 S · 895 SPECIAL · 895 SX · 945 · 995 · 1291 ST · SB-HDS 695 · SUPER · SUPER SX
Dimensions
Ø int 197 · Ø est 275 · L 510 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
20
Trex coil KARKER 4

Coil compatible with Kärcher 4

Fits
Kärcher
Models
HDS 1210 · 1250 · 1290 · 1390 · 1000 · 1195 · 1295 · 1291 ST · 1150 · 4S
Dimensions
Ø int 220 · Ø est 320 · L 520 mm
Terminals
22×1,5 · centres 170 mm
Tube ø × wall
21,3 × 2,65
Outer turns
16
Trex coil KARKER 5

Coil compatible with Kärcher 5

Fits
Kärcher
Models
HDS 655M · 695M / ECO / S / SX · 850 · 4MX · 891 ST · 895 / M / MX / S
Dimensions
Ø int 197 · Ø est 275 · L 540 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
21
Trex coil KARKER 6

Coil compatible with Kärcher 6

Fits
Kärcher
Models
HDS 10/20-4M · 10/20-4MX
Dimensions
Ø int 197 · Ø est 275 · L 580 mm
Terminals
22×1,5 · centres 55 mm
Tube ø × wall
17,2 × 2,35
Outer turns
23
Trex coil KARKER 8

Coil compatible with Kärcher 8

Fits
Kärcher
Models
12/18
Dimensions
Ø int 240 · Ø est 320 · L 550 mm
Terminals
22×1,5 · centres 170 mm
Tube ø × wall
17,2 × 2,35
Outer turns
21
Coil, illustration

Coil compatible with Kärcher 9

Fits
Kärcher
Models
13/20-4S · 13/20-4SX
Dimensions
Ø int 240 · Ø est 320 · L 600 mm
Terminals
22×1,5 · centres 170 mm
Tube ø × wall
17,2 × 2,35
Outer turns
23
Trex coil KRÄNZLE

Coil compatible with Kränzle

Fits
Kränzle
Coil, illustration

Coil compatible with Lavor 15

Fits
Lavorwash / FASA
Models
Lavor LKX · NPX4 · tipo Fasa SUNDEK 55
Dimensions
Ø int 196 · Ø est 280 · L 450 mm
Terminals
1/2" GAS · centres 76 mm
Tube ø × wall
17,2 × 2,35
Outer turns
19
Coil, illustration

Coil compatible with Lavor 21

Fits
Lavorwash / FASA
Models
Lavor TECHNA 4 · Fasa MAXIMA
Dimensions
Ø int 196 · Ø est 280 · L 525 mm
Terminals
1/2" GAS · centres 76 mm
Tube ø × wall
17,2 × 2,35
Outer turns
22
Coil, illustration

Coil compatible with ITM Italia Mondial

Fits
ITM Italia
Models
Twenty
Dimensions
Ø int 196 · Ø est 278 · L 470 mm
Terminals
3/8" GAS · centres 75 mm
Tube ø × wall
17,2 × 2,35
Outer turns
17 / 18
Coil, illustration

Coil compatible with ITM Italia Top Gun

Fits
ITM Italia
Models
Top Gun
Dimensions
Ø int 196 · Ø est 278 · L 575 mm
Terminals
3/8" GAS · centres 75 mm
Tube ø × wall
17,2 × 2,35
Outer turns
22
Coil, illustration

Coil compatible with Comet

Fits
Comet
Models
FDS · KCB · KCS · KE CLASSIC · KE SUPER 8350 / 8550 / 8750 · KE EXTRA 8350 / 8550 / 8750
Dimensions
Ø int 197 · Ø est 277 · L 445 mm
Terminals
3/8" GAS · centres 74 mm
Tube ø × wall
17,2 × 2,35
Outer turns
18
Coil, illustration

Coil compatible with Portotecnica 13 LT

Fits
Portotecnica / IPC
Dimensions
Ø int 224 · Ø est 300 · L 365 mm
Terminals
26×1,5 · centres 254 mm
Tube ø × wall
17,2 × 2,35
Outer turns
14
Coil, illustration

Coil compatible with Portotecnica 15 LT

Fits
Portotecnica / IPC
Models
Futura · Mistral · Golden Jet · Fire Box · 2360T · 2960T · DS2360T · DS2575T · DS960T · Faip HD 200
Dimensions
Ø int 224 · Ø est 300 · L 455 mm
Terminals
26×1,5 · centres 254 mm
Tube ø × wall
17,2 × 2,35
Outer turns
19
Coil, illustration

Coil compatible with Pulitecno V3

Fits
Pulitecno
Models
V3
Dimensions
Ø int 200 · Ø est 280 · L 310 mm
Terminals
1/2" GAS · centres 238 mm
Tube ø × wall
17,2 × 2,35
Outer turns
10
Coil, illustration

Coil compatible with Pulitecno V1

Fits
Pulitecno
Models
V1
Dimensions
Ø int 200 · Ø est 280 · L 485 mm
Terminals
1/2" GAS · centres 238 mm
Tube ø × wall
17,2 × 2,35
Outer turns
18
Coil, illustration

Coil compatible with Pulitecno V2

Fits
Pulitecno
Models
V2
Dimensions
Ø int 200 · Ø est 280 · L 575 mm
Terminals
1/2" GAS · centres 238 mm
Tube ø × wall
17,2 × 2,35
Outer turns
22,5
Coil, illustration

Coil compatible with Tecnomec 13/15 LT

Fits
Tecnomec
Dimensions
Ø int 196 · Ø est 280–282 mm
Terminals
3/8" GAS · centres 80 mm
Tube ø × wall
17,2 × 2,35
Outer turns
19

Experience and quality

Trex is one of the Italian benchmarks in coil production to drawing or to sample, and puts its technical knowledge to work from the design stage onwards.

Production uses hardened dies, specific to each type of coil: that is what guarantees a high and constant product standard over time.

Guaranteed performance

All tube used is certified and selected according to the requirements and performance the customer specifies at the design stage. Material can be carbon steel or AISI 304 stainless steel, with working pressures beyond 500 bar.

Tube diameters range from 3/8" to 1/2". Coil diameters can vary from 150 to 600 mm.

Compatible and customisable

Coils can be produced with complex shapes and profiles: cylindrical or conical developments, special pitches and gaps between turns, spiral windings. Any required detail can be added: side thicknesses, bands, end rings, threaded terminals 3/8" – 1/2", 22×1.5.

We produce coils compatible with almost every brand and model on the market, from samples or drawings supplied by the customer. On request we design and manufacture entirely new coil concepts.

Quotations are free of charge.

Technical data

Tube diameter3/8" – 1/2"
Coil diameter150 – 600 mm
Working pressureOver 500 bar
MaterialsCarbon steel or AISI 304 stainless steel
DevelopmentsCylindrical, conical, spiral windings
TerminalsThreaded 3/8" – 1/2", 22×1.5
ProductionTo drawing, to sample or new design

Made to measure

Free quotes and initial consultancy.

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