CENTRALIZER & SPACER SYSTEMSFOR THE DRILLING & CIVIL CONSTRUCTION INDUSTRIES

www. k w i k z i p . c o mAbout kwik-ZIP
kwik-ZIP Centralizer and Spacer Systems have been developed to solve support, grading and centralization challenges in the trenchless,
HDD, pipeline, vertical production drilling, and ground engineering industries.
From an initial focus of solving production casing centralization challenges in vertical drilling applications, the kwik-ZIP range has growninto a multi-industry series of innovative models that handle bar and pipe diametres from 18mm (0.70 inches) to greater than 1600 mm(63 inches).
Manufactured from high grade thermoplastic, kwik-ZIP products are specified, used and recommended by pipeline and civil contractors,
water and gas utilities, drilling companies and international engineering firms across the world. kwik-ZIP products are suitable for use on
steel, DICL, MSCL, GRE, PVC, HDPE and other pipe material and are a completely non-metallic solution.
kwik-ZIP centralizers and spacers are available in various product series (including HDXT, HDX, HD, GT, 380, and 155) each with varying
bow/runner heights within each series.
kwik-ZIP maintains a focus on price effectiveness, simplicity and rapid on-site assembly, to ensure that our systems deliver significant
cost, time and operational advantages to our customers.
The business has a proven track record of servicing a wide range of markets in diverse geographical locations including United States,
Asia, Australia / New Zealand, Middle East, UK and Europe where our expertise, customer service, cost-effectiveness, innovative range of
products and applicability across multiple industries continues to satisfy customer requirements.
kwik-ZIP has established distributors in Australia, New Zealand, United States and UK and operates from its Head Office in Bunbury andwarehouse facilities in Sydney, Texas, and the UK.

kwik-ZIP Advantages
The use of kwik-ZIP’s engineered thermoplastic blend provides a number of significant advantages and benefits to our customers, including;
9

9

9

9

9

Corrosion Protection - Metallic spacers are subject
to corrosion and can impart corrosive damage to thepipeline. In some cases, metallic spacers can damage
the pipe, particularly if the carrier pipe is a non-metallic
composite pipe such as fiberglass or PVC. Kwik-ZIP
spacers and centralizers have no metal parts whichassists in overcoming some of the corrosion issues thatexist with other products.
Low co-efficient of friction – Products are madefrom kwik-ZIP’s modified Acetal (POM) engineering
thermoplastic blend that has a low co-efficient of friction.
Adjustable sizes – kwik-ZIP spacers and centralizers areadjustable and can be used for varying pipe diameters –adding an extra layer of flexibility.
Reduced insertion forces - Allows for greater run
lengths and the use of lower insertion forces during
installation in trenchless projects. The use of lower
insertion forces allows contractors to reduce the sizeof machine required to complete an installation, saving
money, energy and physical space at the job site.

9Time - Rapid on-site assembly for all pipe diameters.

9

Simplicity - No specialist skills required to assemble.

9

Flexibility - Various bow heights for different pipe/bar/
borehole combinations.

9

Resilience - Engineered from high impact thermoplastic,
with no metal parts to corrode.

9

Slip Prevention (HDX & HD Series) - Integrated rubber
grip pads to lock onto pipe/casing.

9

Curved Profile - Low friction coefficient for easy pipe/
casing insertion into casing/hole.

9

Logistics - Segmented design and packaging for low
inventory and transport costs.

9

Expertise - Technical advice available on the best kwikZIP model for your project.

Cost - Real savings when multiple centralizers andspacers are required.

kwik-ZIP® is a registered trademark of kw

155 Series
Application
A non-metallic bow spring centralizer for applications such as gravel
packed screens, water well casing, monitor wells, drop pipe, and pumpinstallation plus Ground Engineering related applications such as piles,
soil nails, anchors and sheathing installations. This model will fit
casing and sheathing diameters from 58mm OD (2.28”) to in excess
of 180mm OD (8”), and is available in three bow heights of 20mm
(0.78”), 30mm (1.18”), and 50mm (2”).

Construction & Features•

Made from Kwik-ZIP’s modified Acetal (POM) engineering
thermoplastic blend with high flexural strength, hightemperature resistance, low co-efficient of friction, abrasion
resistance and outstanding chemical resistance.

•

Flexible bow able to deflect to handle tight annulus settings.

•

The flexible bows can deflect under force to pass minor
obstructions in the borehole.

•

Larger diameters are accommodated by joining additional
segments.

•

A 155 Series setting tool is required for assembly.

Model

Runner (Bow)
HeightPart #

155 HT-C

20mm / 0.78”

09810

155 HT-D

30mm / 1.18”

09988

155 HT-E

50mm / 2”

155 Series
Setting Tool-

Operating Temp
(Deg C / F)

Recommended foruse on Pipe/Nail
Diameter

58mm OD- 180mm OD
2.28” OD- 7.09” OD

09865- 20 C to 80 C
- 4 F to 176 F in
certain applications(temperatures above
50 C / 122 F may
require closer intervals)

09940

-

-

Compliance•

Manufactured under a certified ISO 9001 Quality Management System.

•

Compliant with AS/NZS 4020:2005 Products for use in contact with drinking
water.

•

Compliant with lead free requirements of Section 1417 of the US Safe Water
Drinking Act.

Units
per
cartonCarton Dimensions(L x W x H)

Gross Carton
Weight30254mm x 205mm x 210mm
10” x 8.1” x 8.3”

1.7 Kg /3.96 lbs

30

260mm x 205mm x 210mm
10.3” x 8.1” x 8.3”

1.7 Kg /3.96 lbs

30

284mm x 205mm x 210mm
11.2” x 8.1” x 8.3”

1.7 Kg /3.96 lbs

1

485mm x 150mm x 58mm
19.1” x 5.9” x 2.3”

1.5 Kg /3.3 lbs

Sizing Table - 155 Series

Outside Dia of Casing mm (Inches)

Number of Segments

Approx Setting Guide
Position

60 (2.362)

2

5

70 (2.756)

2

15

80 (3.150)

2

3588.9 (3.50)

30

90 (3.543)

30

100 (3.937)

310

110 (4.331)

320120 (4.724)

330

130 (5.118)

340

140 (5.512)

350

150 (5.905)

425

160 (6.299)

440

170 (6.693)440

180 (7.087)

445

Please refer to the relevant product series installation guide for additional informationwww.kwikzip.com

kwik-ZIP products are protected by various Australian, US and Foreign Patents. kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd Certified to ISO 9001
Visit us online for details of your nearest distributor at www.kwikzip.com or e-mail us at sales@kwikzip.com or usa@kwikzip.com (US customers)

380 Series
Application
A non-metallic bow spring centralizer for vertical applications suchas gravel packed screens, casing and drop pipe. This model will
centralize casing and diameters of 160mm OD (6.3”) up to 760mm OD(30”) and is available in two flexible bow heights of 30mm (1.18”) and
50mm (2”).

Construction & Features•

Made from Kwik-ZIP’s modified Acetal (POM) engineering
thermoplastic blend with high flexural strength, hightemperature resistance, low co-efficient of friction, abrasion
resistance and outstanding chemical resistance.

•

Flexible bow able to deflect to handle tight annulus settings.

•

A 380 Series setting tool is required for assembly.

•

The flexible bows can deflect under force to pass minor
obstructions in the borehole.

•

Greater diameters are accommodated by joining additional
segments.

ModelsModel

Runner (Bow)
HeightPart #

380 HT-D

30mm / 1.18”09964

380 HT-E

50mm / 2”

09858

380 Series
Setting Tool

-

09957

Operating Temp
(Deg C / F)

Recommended foruse on Pipe/Nail
Diameter- 20 C to 80 C
- 4 F to 176 F
in certain applications(temperatures above
50 C / 122 F may
require closer intervals)

160mm OD- 760mm OD
6.3” OD- 30” OD--

Compliance•

Manufactured under a certified ISO 9001 Quality Management System.

•

Compliant with AS/NZS 4020:2005 Products for use in contact with drinking
water.

•

Complaint with lead free requirements of Section 1417 of the US Safe Water
Drinking Act.

Units
per
cartonCarton Dimensions(L x W x H)

Gross Carton
Weight50475mm x 400mm x 440mm
18.7” x 15.7” x 17.3”

18 Kg /
39.6 lbs

50

510mm x 400mm x 450mm
20.1” x 15.7” x 17.7”

18 Kg /
39.6 lbs

1

485mm x 150mm x 58mm
19.1” x 5.9” x 2.3”

2 Kg / 4.4 lbs

Sizing Table - 380 Series
Outside Dia of Casing mm(Inches)Number of Segments

Approx Setting Guide Position

160 (6.299)

25

170 (6.693)

2

20

180 (7.087)2

35

190 (7.480)250

200 (7.874)265

210 (8.268)285

220 (8.661)

2100

240 (9.449)

30

260 (10.236)

3

20

270 (10.630)

335

300 (11.811)

365

320 (12.598)385

340 (13.386)3105

360 (14.173)

430

380 (14.961)445400 (15.748)460

410 (16.142)470

440 (17.323)

495

460 (18.110)

4110

480 (18.898)550510 (20.079)

570

520 (20.472)575

540 (21.260)

585

560 (22.047)5100

580 (22.835)

5110

600 (23.622)

660

610 (24.016)665

640 (25.197)

680

660 (25.984)690680 (26.772)6105

700 (27.559)

6110

710 (27.953)765760 (29.921)

790

Please refer to the relevant product series installation guide for additional informationwww.kwikzip.com

kwik-ZIP products are protected by various Australian, US and Foreign Patents. kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd Certified to ISO 9001
Visit us online for details of your nearest distributor at www.kwikzip.com or e-mail us at sales@kwikzip.com or usa@kwikzip.com (US customers)

GT Series
Application
A non-metallic bow spring centralizer for applications such as soil
nails, rock bolts, anchors, sheathing, small diameter drop pipe, downhole cameras, geophysical tools and other data collection devices.
Adjustable diameters to fit 18mm OD (0.70”) up to 65mm OD (2.56”)
and four models to suit numerous ID-OD combinations.

Construction & Features•

Made from Kwik-ZIP’s modified Acetal (POM) engineering
thermoplastic blend with high flexural strength, hightemperature resistance, low co-efficient of friction, abrasion
resistance and outstanding chemical resistance.

•

Curved and wide bow profile for easy insertion.

•

Simple integrated cable tie method of assembly. No special
tool required for installation.

•

The flexible bows can deflect under force to pass minor
obstructions in the borehole.

•

Larger diameters are accommodated by joining additional
segments.

ModelsModel

Runner (Bow)
HeightPart #GT 10-110mm / 0.39”

00987

GT 20-120mm / 0.78”

00989

GT 30-130mm / 1.18”00988

GT 40-140mm / 1.57”

00990

Operating Temp
(Deg C / F)

Recommended foruse on Pipe/Nail
Diameter- 20 C to 80 C
- 4 F to 176 F
in certain applications(temperatures above
50 C / 112 F may
require closer intervals)

Compliance•

Manufactured under a certified ISO 9001 Quality Management System.

•

Compliant with AS/NZS 4020:2005 Products for use in contact with drinking
water.

•

Compliant with lead free requirements of Section 1417 of the US Safe Water
Drinking Act.

18mm OD- 65mm OD
0.70” OD- 2.56” OD

Units
per
cartonCarton Dimensions(L x W x H)

Gross Carton
Weight100

265mm x 140mm x 210mm
10.43” x 5.51” x 8.27”

1.45 Kg /3.19 lbs

100

288mm x 184mm x 178mm
11.34” x 7.25” x 7”

1.67 Kg /3.67 lbs

100

339mm x 184mm x 218mm
13.35” x 7.25” x 8.58”

2 Kg /
4.4 lbs

100

358mm x 184mm x 260mm
14.10” x 7.25” x 10.24”

2.69 Kg /5.92 lbs

Sizing Table - GT Series

www.kwikzip.com

Bar / Pipe Dia mm (Inches)

Units per Centralizer

18mm - 29mm
(0.70 inch - 1.14 inch)

2

29mm - 46mm
(1.14 inch - 1.81 inch

3

46mm - 65mm
(1.81 inch - 2.56 inch

4

Over 65mm(Over 2.56 inch)

Use 155 HT Series

kwik-ZIP products are protected by various Australian, US and Foreign Patents. kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd Certified to ISO 9001
Visit us online for details of your nearest distributor at www.kwikzip.com or e-mail us at sales@kwikzip.com or usa@kwikzip.com (US customers)

HD Series - Horizontal
Application
A non-corroding, non-metallic heavy duty bow spring casing spacer
for horizontal pipe-in-pipe (PIP) and open bore applications such aswastewater and sewer pipelines, slip lining and cased crossings.
Suitable for light to medium weight carrier pipe materials including
steel, ductile, MSCL, GRE, PVC, and HDPE. Will fit diameters from110mm OD (4.33”) to greater than 1600mm OD (63”) by addition ofmultiple segments.
For heavy carrier pipe materials and diameters greater than 355mm(14”) in non-grouted, pressure installations the kwik-ZIP® HDX or
HDXT Series is recommended.

Construction & Features•

Made from Kwik-ZIP’s modified Acetal (POM) engineering
thermoplastic blend with high flexural strength, hightemperature resistance, low co-efficient of friction, abrasion
resistance and outstanding chemical resistance.

•

Integrated rubber grip pads under collars to prevent slippage.
No requirement to pre-wrap pipe.

•

Load sharing bow spring system allowing heavy loads tobe shared across multiple bows reducing point loading andincreasing the overall load capacity of the spacer.

•

The flexible bows can deflect under force to pass minor
obstructions in the borehole.

•

Requires only a flat blade screwdriver for installation.

ModelsModel

Runner (Bow)
HeightPart #

HD 30

30mm / 1 3/16”

00992

HD 50

50mm / 2”

00991

HD 75

75mm / 3”00993

HD 100100mm / 4”00100

Operating Temp
(Deg C / F)

- 20 C to 80 C
- 4 F to 176 F
in certain applications(temperatures above 50
C / 122 F may require
closer intervals)

Recommended
for use on Pipe
Diameter

101mm / 4” NPS& greater(consider the HDX or HDXT
for pipe dia greater than
355mm / 14”)Compliance•

Manufactured under a certified ISO 9001 Quality Management System.

•

Compliant with AS/NZS 4020:2005 Products for use in contact with drinking
water.

•

Compliant with lead free requirements of Section 1417 of the US Safe Water
Drinking Act•

Compliant with WSAA Product Specification # 324 – Casing Spacers.

•

Approved by MRWA and SEQ IPAM..

Units
per
cartonCarton Dimensions(L x W x H)

Gross Carton
Weight30325mm x 325mm x 375mm
12.8” x 12.8” x 14.8”

8.36 Kg /18.43 lbs

30

340mm x 325mm x 375mm
13.4” x 12.8” x 14.8”

8.48 Kg /18.69 lbs

30

385mm x 325mm x 375mm
15.1” x 12.8” x 14.8”

9.26 Kg /20.41 lbs

30

460mm x 325mm x 375mm
18.1” x 12.8” x 14.8”

10.25 Kg /22.55 lbs

Sizing Table - HD Series - Horizontal
Nominal Pipe
Size (NPS)OD of Pipe(mm)

OD of Pipe
(Inches)

Suggested Number ofSegments

Approx Setting Guide
Position

110

4.33

2

0

4

114.30

4.50

2

15

4.5

127.00

5.00

2

30

5

141.30

5.563

2

55

160

6.30

2

85

168.27

6.625

3

5

180

7.09

3

20

200

7.87

3

40

219.08

8.625

3

65

250

9.84

4

25

6

8
10

273.05

10.75

**4

45

12

323.85

12.75

**5

80

14

355.60

14.00

**6

50

16

406.40

16.00

**7

35

18

457.20

18.00

**8

65

20

508.00

20.00

**8

55

24

609.60

24.00

**10

65

650

25.59

**11

50

710

27.95

**12

70

800

31.50

**14

75

900

35.43

**15

60

1000

39.37

**17

65

1100

43.30

**19

70

1200

47.24

**20

45

Please refer to the relevant product series installation guide for additional information.
For pipe installed in the horizontal position, (e.g. Cased Crossings), it is recommended that the No. of bows be maximised to enable the highest
load capacity per spacer.
Use the following formula to calculate the No. of segments per spacer for such pipe:
No. of Segments = [Pipe OD (mm) x 3.1428] ÷ 180. (Round the result down to nearest whole number).
Spacer intervals of 2m (approx. 6ft) are generally suitable for light weight pipe up to 300mm NPS (12” NPS).
**For heavy weight or large diameter carrier pipes installed in the horizontal position, kwik-ZIP’s heavier duty HDX or HDXT Series spacer models
should be considered, especially if the pipeline annulus will not be grouted after installation.

www.kwikzip.com

kwik-ZIP products are protected by various Australian, US and Foreign Patents. kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd Certified to ISO 9001
Visit us online for details of your nearest distributor at www.kwikzip.com or e-mail us at sales@kwikzip.com or usa@kwikzip.com (US customers)

HD Series - Vertical
Application
A non-corroding, non-metallic heavy duty bow spring centralizer for
vertical applications such as production wells, gravel packed wellscreens, pump torque arrestor, water well casing, coal seam methane
casing, pump riser/submersible pump installation, and piling and issuitable for all pipe materials including PVC, Poly, Stainless Steel,
Fibreglass and GRP, etc. Will fit diameters from 110mm OD (4.33”) to
greater than 1600mm OD (63”) by addition of multiple segments.

Construction & Features•

Made from Kwik-ZIP’s modified Acetal (POM) engineering
thermoplastic blend with high flexural strength, hightemperature resistance, low co-efficient of friction, abrasion
resistance and outstanding chemical resistance.

•

Integrated rubber grip pads under collars to prevent slippage.

•

Load sharing bow spring system allowing heavy loads tobe shared across multiple bows reducing point loading andincreasing the overall load capacity of the spacer.

•

The flexible bows can deflect under force to pass minor
obstructions in the borehole.

•

Requires only a flat blade screwdriver for installation.

ModelsModel

Runner (Bow)
HeightPart #

HD 30

30mm / 1 3/16”

00992

HD 50

50mm / 2”

00991

HD 75

75mm / 3”00993

HD 100100mm / 4”00100

Operating Temp
(Deg C / F)

Recommended
for use on Pipe
Diameter- 20 C to 80 C
- 4 F to 176 F
in certain applications(temperatures above 50 C
/ 122 F may require closer
intervals)

Compliance•

Manufactured under a certified ISO 9001 Quality Management System.

•

Compliant with AS/NZS 4020:2005 Products for use in contact withdrinking water.

•

Complaint with lead free requirements of Section 1417 of the US Safe Water
Drinking Act

101mm / 4” NPS& greater

Units
per
cartonCarton Dimensions(L x W x H)

Gross Carton
Weight30325mm x 325mm x 375mm
12.8” x 12.8” x 14.8”

8.36 Kg /18.43 lbs

30

3340mm x 325mm x 375mm
13.4” x 12.8” x 14.8”

8.48 Kg /18.69 lbs

30

385mm x 325mm x 375mm
15.1” x 12.8” x 14.8”

9.26 Kg /20.41 lbs

30

460mm x 325mm x 375mm
18.1” x 12.8” x 14.8”

10.25 Kg /22.55 lbs

Sizing Table - HD Series
Nominal Pipe Size (NPS)OD of Pipe (mm)OD of Pipe (Inches)

Suggested Number ofSegments

Approx Setting Guide
Position

110

4.33

2

0

4

114.30

4.50

2

15

4.5

127.00

5.00

2

30

5

141.30

5.563

2

55

160

6.30

2

85

168.27

6.625

3

5

180

7.09

3

20

200

7.87

3

40

219.08

8.625

3

65

250

9.84

4

25

10

273.05

10.75

4

45

12

323.85

12.75

4

80

14

355.60

14.00

5

50

16

406.40

16.00

6

35

18

457.20

18.00

6

65

20

508.00

20.00

7

55

24

609.60

24.00

8

65

650

25.59

9

50

710

27.95

9

70

6

8

800

31.50

10

75

900

35.43

12

60

1000

39.37

13

65

1100

43.30

14

70

1200

47.24

17

45

Please refer to the relevant product series installation guide for additional informationwww.kwikzip.com

kwik-ZIP products are protected by various Australian, US and Foreign Patents. kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd Certified to ISO 9001
Visit us online for details of your nearest distributor at www.kwikzip.com or e-mail us at sales@kwikzip.com or usa@kwikzip.com (US customers)

HDX Series
Application
A non corroding, non-metallic casing spacer for Pipe-in-Pipe (PIP)
applications such as slip lining and cased crossings for all medium toheavy weight pipe materials including steel, DICL, MSCL, GRE, PVC and
HDPE. Suitable for all diameters from 100mm OD to 1600mm OD andbeyond by addition of multiple segments.

Construction & Features•

Made from Kwik-ZIP’s modified Acetal (POM) engineering
thermoplastic blend with high flexural strength, hightemperature resistance, low co-efficient of friction, abrasion
resistance and outstanding chemical resistance.

•

Integrated rubber grip pads under collars to prevent slippage.
No requirement to pre-wrap pipe.

•

Load sharing suspension system allowing heavy loads to beshared across multiple runners reducing point loading andincreasing the overall load capacity of the spacer.

•

Minimizes spacer weight bearing capacity and reduces point
loading via a unique load sharing runner system.

•

Ability to combine different runner heights in the same spacer
ring to assist in borehole grade correction.

•

Larger diameters are accommodated by joining additional
segments.

•

Requires only a flat blade screwdriver for installation.

ModelsModel

RunnerHeightPart #

HDX 3838mm / 1 ½”

00038

HDX 6565mm / 2.56”

00065

HDX 9090mm / 3.54”00090

HDX 125125mm / 4.92”

00125

Operating Temp (DegC / F)- 20 C to 80 C
- 4 F to 176 F
in certain applications(temperatures above 50 C
/ 122 F may require closer
intervals)

Recommended
for use on Pipe
Diameter

100mm OD
& greater

Compliance•

Manufactured under a certified ISO 9001 Quality Management System.

•

Compliant with AS/NZS 4020:2005 Products for use in contact with drinking
water.

•

Compliant with lead free requirements of Section 1417 of the US Safe Water
Drinking Act.

•

Compliant with WSAA Product Specification # 324 – Casing Spacers.

•

Approved by MRWA and SEQ IPAM.

Units
per
cartonCarton Dimensions(L x W x H)

Gross
CartonWeight20370mm x 350mm x 300mm
14.6” x 13.8” x 11.8”

11 Kg /
24.2 lbs

20

370mm x 350mm x 330mm
14.6” x 13.8” x 12.9”

13 Kg /
28.6 lbs

20

370mm x 350mm x 365mm
14.6” x 13.8” x 14.4”

14.6 Kg /32.1 lbs

20

370mm x 350mm x 405mm
14.6” x 13.8” x 15.9”

17 Kg /
37.4 lbs

Size table & setting guide
NPS(ASME)*Carrier
Pipe OD(mm)*Carrier
Pipe OD(Inches)

3.5

101.604.00

110.004.33

122.004.80

4.5

127.005

141.306

8**Carrier
Pipe
NominalSize (DN)

Load sharing
Rec #Segments

Banding

Approx
Setting
Guide
Position

2

No

0

2

No

10

2

No

30

5.00

2

No

40

5.56

2

No

65

160.00

6.30

3

No

15

168.276.62

177.006.97

200.00219.08

100

3

No

20

3

No

30

7.87

3

No

55

8.63

4

No

10

150

232.00

9.13

200

4

No

20

259.00

10.20

225

4

No

40

10

273.05

10.75

5

No

10

286.00

11.26

5

No

20

12

323.85

12.75

5

No

40

345.00

13.58

6

No

20

406.40

16.00

7

No

20

250

Using a unique “load sharing runner” system, each HDX segment
maximises its weight bearing capacity by distributing the pipe load
across multiple runners. This reduces point loading at any one location,
boosting and optimising the overall support capacity of the spacer
exponentially as pipe size increases. The “load sharing runner” system
also delivers a suspension and dampening effect, reducing the transferof potentially damaging vibration and movement from the outer casing
to the carrier pipe. This may be beneficial in tectonically active regions
or high traffic areas where ongoing external vibration affects the outercasing.
When used in accordance with the Installation Guide, HDX Spacers will
easily handle weights equivalent to a standard Ductile Iron Cement
Lined (DICL) pipe full of fluid.
For specific advice on load capacities please contact
sales@kwikzip.com (Australasia) or usa@kwikzip.com (USA).
Centered & restrained

16.77

375

7

No

30

17.83

400

8

No

20

20

507.00

19.96

450

9

No

20

22

560.00

22.05

500

10

No

15

24

609.60

24.00

11

No

15

630.0024.80

667.0026.26

28711.2030

762.00

11

No

20

12

No

15

28.00

12

No

25

30.00

13

No

25

800.00

31.50

14

Yes

20

826.00

32.52

14

Yes

25

900.00

35.43

15

Yes

25

1000.00

39.37

17

Yes

25

42

1066.80

42.00

18

Yes

30

44

1117.60

44.00

19

Yes

30

48

1219.20

48.00

21

Yes

30

52

1320.80

52.00

22

Yes

35

1400.00

55.12

23

Yes

30

1564.00

61.57

25

Yes

35

1600.00

62.99

26

Yes

35

1668.00

65.67

27

Yes

35

600

750

Please refer to the relevant product series installation guide for
additional information* For PE Pipe refer to the nearest Carrier Pipe OD.
** OD for Nominal Size (DN) designations is a guide only. If unsure
please confirm actual carrier pipe OD.
For pipe greater than 800mm OD (e.g. DN 750 and above), for very
heavy weight pipe, or if the pipe material is slippery, it is recommended
that 12mm stainless steel worm drive banding be applied over thecollars. Contact kwik-ZIP for further information.
HDX Spacers are generally suitable for heavy pipe run lengths up to
300m (approx. 1,000 ft) in good condition casings. Longer run lengths
may be possible with casing lubrication, banding, and/or closer spacer
intervals. Contact kwik-ZIP for further advice.
www.kwikzip.com

Non-centered & restrained
Spacer comprised of HDX 125 segments(125mm runners) above the pipe and HDX
65 segments (65mm runners) below pipe

Non-centered & restrained
Spacer comprised of HDX 65 segments (65mm
runners) above pipe and HDX 125 segments(125mm runners) below pipe

Friction and Wear capabilities
Acetal (POM) is well known as being one of the best materials forapplications requiring excellent abrasion / wear resistance and a low
coefficient of friction. It performs better than alternative materials
such as Nylon and HDPE.
HDX Spacers are fitted with wear pads made from kwik-ZIP’s modified
Acetal (POM) engineering thermoplastic blend to achieve even better
abrasion resistance and a lower coefficient of friction, especially underhigh load conditions.
These properties allow for greater run lengths and lower insertion
forces during carrier pipe installation.
The graphs below compare the dynamic coefficient of friction, and thewear rate (against carbon steel) of the material used to make the HDX
wear pads versus standard Acetal (POM).
Superior Friction Properties of HDX Runners

Superior Wear Properties of HDX Runners

Sliding against Mild Steel (Speed = 500 mm/s)

Sliding against Mild Steel (Speed = 500 mm/s)

0.30

0.25

0.20

0.15
100

110

120

130

140

150

Specific wear rate of Runner Material (mm3/N-Km)

426.00453.00Spacer comprised of the same
HDX 65 segment (65mm runners)

Dynamic Friction Coefficients of Runner Material

16

300

1.5

1.2

0.9

0.6

0.3

0.0
100

110

120

Load (N)Standard Acetal POM

130

140

150

Load (N)kwik-ZIP's Modified Acetal POM

Standard Acetal POM

kwik-ZIP's Modified Acetal POM

kwik-ZIP products are protected by various Australian, US and Foreign Patents. kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd Certified to ISO 9001
Visit us online for details of your nearest distributor at www.kwikzip.com or e-mail us at sales@kwikzip.com or usa@kwikzip.com (US customers)

HDXT Series
Application
A completely non corroding, non-metallic casing spacer for Pipe-inPipe (PIP) applications such as slip lining and cased crossings for all
heavy weight pipe materials including steel, ductile, MSCL, GRE, PVC,
HDPE. Suitable for all diameters from 300mm (11.81”) OD and beyond
by addition of multiple segments.

Construction & Features•

Made from Kwik-ZIP’s engineered thermoplastic blend withhigh flexural strength, high temperature resistance, low
co-efficient of friction, abrasion resistance and outstanding
chemical resistance.

•

Integrated rubber grip pads under collars to prevent slippage.
No requirement to pre-wrap pipe.

•

Load sharing suspension system allowing heavy loads to beshared across multiple runners reducing point loading andincreasing the overall load capacity of the spacer.

•

Minimizes spacer weight bearing capacity and reduces point
loading via a unique load sharing runner system.

•

Ability to combine different runner heights in the same spacer
ring to assist in borehole grade correction.

•

Larger diameters are accommodated by joining additional
segments.

ModelsModel

RunnerHeightPart #

Operating Temp (DegC / F)HDXT 4343mm / 1.69”

00002- 20 C to 80 C

HDXT 6363mm / 2.48”00004- 4 F to 176 F in certain
applications

HDXT 103103mm / 4.05”

00006

HDXT 153

153mm / 6.02”

00008(HDXT Hi Load Inserts
should be used for service
temperatures
above 50 C / 122 F)

Recommended
for use on Pipe
Diameter

300mm (11.81”)
OD & greater

Compliance•

Manufactured under a certified ISO 9001 Quality Management
System.

•Compliant with AS/NZS 4020:1999 Products for use in contact
with drinking water.

•

Compliant with lead free requirements of Section 1417 of the
US Safe Water Drinking Act.

•

Compliant with WSAA Product Specification # 324 – Casing
Spacer.

UnitspercartonCarton Dimensions(L x W x H)

Gross
CartonWeight20640mm x 360mm x 350mm
25.20” x 14.17” x 13.78”

20.2 Kg /44.5 lbs

20

640mm x 360mm x 375mm
25.20” x 14.17” x 14.76”

22.8 Kg /50.2 lbs

20

640mm x 360mm x 520mm
25.20” x 14.17” x 20.47”

26.2 Kg /57.8 lbs

20

640mm x 360mm x 570mm
25.20” x 14.17” x 22.44”

31.2 Kg /68.8 lbs

Size tableNPS(ASME)

Load sharing*Carrier
Pipe OD(mm)*Carrier
Pipe OD(Inches)

Recommended #Segments

300.00

11.81

3

12

323.85

12.75

3

14

355.6014.00

3400.0015.75

4406.4016.00

4426.0016.77

4457.00

17.99

4

16

18

500.00

19.69

5

20

508.00

20.00

5

22

560.00

22.05

5

24

610.00

24.02

6

26

660.00

25.98

6

28

711.20

28.00

7

30

762.0030.00

7800.0031.50

8826.0032.52

8900.0035.43

8914.00

35.98

8

36

Banding

Using a unique “load sharing runner” system, each HDXT segment
maximises its weight bearing capacity by distributing the pipe load
across multiple runners. This reduces point loading at any one location,
boosting and optimising the overall support capacity of the spacer
exponentially as pipe size increases. The “load sharing runner” system
also delivers a suspension and dampening effect, reducing the transferof potentially damaging vibration and movement from the outer casing
to the carrier pipe. This may be beneficial in tectonically active regions
or high traffic areas where ongoing external vibration affects the outercasing.
When used in accordance with the Installation Guide, HDXT Spacers
will easily handle weights equivalent to a standard Ductile Iron Cement
Lined (DICL) pipe full of fluid.
Centered & restrained
Spacer comprised of the same
HDXT 63 segment (63mm runners)

1000.00

39.37

9

42

1066.80

42.00

10

Yes

44

1117.60

44.00

10

Yes

48

1219.20

48.00

11

Yes

52

1320.80

52.00

12

Yes

1400.00

55.12

13

Yes

1564.00

61.57

14

Yes

1600.00

62.99

15

Yes

1668.00

65.67

16

Yes

1800.00

70.87

17

Yes

1900.00

74.80

18

Yes

2000.00

78.74

19

Yes

2200.00

86.61

20

Yes

2500.00

98.43

23

Yes

3000.00

118.11

27

Yes

Contact kwik-ZIP for carrier pipe diameters greater than3000 mm (118.11”) OD

Non-centered & restrained
Spacer comprised of HDXT 103 segments(103mm runners) above the pipe and HDXT
63 segments (63mm runners) below pipe

Non-centered & restrained
Spacer comprised of HDXT 63 segments (63mm
runners) above pipe and HDXT 103 segments(103mm runners) below pipe

Friction and Wear capabilities
HDXT Spacers are fitted with wear pads made from kwik-ZIP’s
engineered thermoplastic blend to achieve superior abrasion
resistance and a low coefficient of friction, especially under high loadconditions.
These properties allow for greater run lengths and lower insertion
forces during carrier pipe installation.
For specific advice on load, friction or wear capacities please contact
sales@kwikzip.com (Australasia) or usa@kwikzip.com (USA).

* For PE Pipe refer to the nearest Carrier Pipe OD.
Important: Please read HDXT Spacer Installation Guide before use.
For pipe greater than 1000mm OD, or if the pipe material is slippery,
it is recommended that 12mm stainless steel worm drive banding beconsidered for application over the collars.
HDXT Spacers are generally suitable for heavy pipe run lengths up to
300m (approx. 1,000 ft) in good condition casings. Longer run lengths
may be possible with casing lubrication, banding, and/or closer spacer
intervals.
Contact kwik-ZIP for further advice.

www.kwikzip.com

kwik-ZIP products are protected by various Australian, US and Foreign Patents. kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd Certified to ISO 9001
Visit us online for details of your nearest distributor at www.kwikzip.com or e-mail us at sales@kwikzip.com or usa@kwikzip.com (US customers)

What others are saying about kwik-ZIP“The GT-Series Centraliser is highly popular with our customers
across a wide range of geotechnical projects for installation on bothbar and sheathing. I think that’s because the units provide a very
simple, versatile, and economical centralizing solution, many times
in settings where time and money are critical factors.”
Steve Dube, Business Unit Manager, Dywidag Systems
International“These centralizers have provided excellent centering capability
and a resulting grout job that meets all specifications. …It’s a good
product and after recent failures with stainless centralizers, I am real
happy to see a product with good strength properties available forcontractors to use.”
Jim Frazee, Hydrogeologist, St John River Water,Management District, Florida USA.
“We use the HD series on our sewer installations on different pipe
diameters. The curved bow spring allows easy insertion of the pipe
into the casing. We also find that the rubber pads grip tightly onto
the pipe to prevent slip. Because the units lock together easily KwikZip saves us a lot of time.”
Cliff Bailey, Project Manager, ADK Civil“To date we have used well over a hundred thousand of Kwik-Zip’s
GT centralisers on our soil stabilization projects. We find the units tobe quick and easy to assemble and versatile with different bar andhole sizes. I am happy with the product and would recommend it.”Raegan Rumbold, Project Manager,
Rock Australia Mining and Civil“Kwik-Zip’s HD segments were delivered to site in compact boxes.
In no time we had assembled multiple spacers on a 610 mm OD
steel water main pipe run for friction reduction and centralization
before we grouted. It was that simple.”
Graeme Morton, Project Manager,
Underground Services Australia“When I first saw your product I knew it would be a huge success.
I will forever be a customer and always speak highly of Kwik-ZIP
products.”
Don Huckfeldt, Owner, Huckfeldt Well Drilling,Napa, California“kwik-ZIP’s HD75 spacers were quick & easy to install and helped tomake the carrier pipe installation a trouble-free process.”
Brett Moore – Construction Manager, Microtunnelling,
Adept Civil Group.
“Kwik-ZIP’s customer service & technical support was excellent the spacers were supplied at very short notice from their Sydney
warehouse and the installation crews found them quick & easy toinstall”
Rod Dean, Engineering Designer, Shoalhaven Water.

“kwik-ZIP spacers robust design and low coefficient of friction
assisted to make the installation process trouble free, and ensured
complete protection of the carrier pipe.”
Michael Allen: Project Engineer,
Ledonne Constructions Pty Ltd.
“The spacers were delivered on-time as requested and our crew
found the Kwik-ZIP spacers simple and easy to install given they
didn’t require any special tools. Their robust design and ability toprotect the carrier pipe and handle tough abrasive conditions madethem the perfect solution for our project.”
Errol Alley: National Manager,
Axis Civil and Hydraulics.
I was particularly impressed with Kwik-ZIP’s professional and timely
delivery; the team at Kwik-ZIP were cordial and supportive as
their understanding of our requirement saved the project time.” –Matthew Akinsanya: Site Engineer, Diona.
“Kwik-ZIP products are simple and quick to install and ensure thecarrier pipe is appropriately protected from abrasion and otherdamage during installation. Minimal force is required during
installation of the carrier pipe due to the products low coefficient offriction.”
Michael Allen: Project Engineer,
Ledonne Constructions Pty Ltd.
“Pipeline Drillers utilised Kwik-ZIP HDX-38 on two steel casing
sections required to protect the client’s asset from existing andfuture roadways on the Mountain Creek to Kawana Sewerage
Pipeline Project. Our construction partner, Dormway, installed thecasing spacers at one metre intervals across the 900-millimetre
diameter high-density polyethylene Kawana Way Road Crossings,
and found the assembly extremely fast, simple and unfailing. Overall
the team were impressed with the product, which delivered soundsupport for a seamless installation.”
Colin Harris: Project Manager, Pipeline Drillers.
“Kwikzip centralizers are strong and easy to use and keep the pipe
perfectly on grade.”
Chris Dean, L&D Micro Tunnelling.
“kwik-Zip spacers were easy to use and the pipe slid through withease the only tool needed was a screwdriver ”
Stuart Rose : Works Supervisor, Riverina Water.
“Denso Australia found the Kwik-ZIP 155 HT-E was a perfectselection due to the ease of application and the competitive price.”David Towns: Business Development Manager SA/NT,
Denso Australia.

kwik-ZIP® is a registered trademark of kwik-ZIP Pty Ltd | Certified to ISO 9001