Pipe Lining

Hadlee & Brunton have the exclusive New Zealand (NZ) rights to supply, distribute and install the full range of revolutionary German pipe rehabilitation products manufactured by Amex Sanivar.

03 684 3817

Pipe Lining

Pipe Lining Services:

Hadlee & Brunton have the exclusive New Zealand (NZ) rights to supply, distribute and install the full range of revolutionary German pipe rehabilitation products manufactured by Amex Sanivar. In particular is the range of Amex pressure liners, known as SaniTube, which are capable of operating pressures exceeding 50 bar. These 3.5mm thick liners can line any type of pipe from 100-year-old steel through to asbestos in lengths of up to 3km. Most importantly there is no resin, curing or grouting involved, just a flanged coupler at each end and inflate to 1 bar pressure to install. These liners can be used for potable water (AS/NZS approved), sewer, industrial waste water along with oil and gas. They will revolutionize the NZ construction industry with major cost and time savings and give aging infrastructure a further 50 to 100 years lifespan.

Amex Sanivar is a German family run business who specialise in the trenchless rehabilitation of pipelines and over the past 45 years, have developed a broad range of rehabilitation solutions for a wide range of applications such as, potable water, sewage, gas, kerosne/petrol and oil. Their range of products are capable of repairing almost any possible leak or defect in pipelines ranging from DN80 right up to DN6000. Combining Amex Sanivars trenchless rehabilitation products with the expertise and specialised trenchless technical knowledge of H&B, means that this partnership can solve most pipeline problems. Bespoke design solutions can also be developed for projects with special design constraints or circumstances.

SaniTube is a close-fit pull-in liner made to withstand high pressures while requiring relatively low amounts of installation equipment on-site however, there is a need to have highly specialised and advance camering capabilities to facilitate the installation. Refer to our Pipeline CCTV section for further information here.

How it works?

SaniTube® consists of a textile liner, a double-sided thermoplastic coating
Suited for the rehabilitation of all common types of pipes DN80 to DN400
Suitable for great variety of media: potable water, sewage, industrial applications, gas, oil, and petrol
SaniTube® is pulled-in via standard winch and reconnected to host pipe using a flange coupling

Main advantages

Rehabilitation of up to 3000m in a single pull – incl. bends of up to 40°
Lifetime of over 50 years – guaranteed!
No resin, no impregnation, and no curing needed
High resistance to pressure: burst pressures of over 34 bar w/o host pipe and resistant to vacuum
Easy installation & no need for special equipment

Technical specifications of SaniTube:

Liner material: PET-multifilament yarn
Coating material: Polyethylene / polyurethane
Diameter: DN 25 – 400 mm (1-16″)
Application: Potable water, industrial, sewage, gas, oil
Installation length (max): 3000m
Installation time (max): 5-15 m/min
Installation method: Pull-in by winch
Curing method: Not applicable
Max. applicable operating pressure: 35 bar
Bends: Up to 45°
Ending: SaniGrip coupling
Operating temperature (max) (C): PE 60°, PU 70°, PES 80°

Tests and approvals:

Potable Water: DVGW, KTW, ACS, DVGW, SVGW, WRAS
Quality Management: ISO 9001
Environmental Management: ISO 14001
Burst test: DIN 14811
Abrasion resistance DIN EN 14811:2008-01
Jet fuel chemical resistance: ASTM D2624 , ASTM D130, ASTM D3241 P

Burst Pressure

The liner is rated to a pressure of 70 bar (excluding the host pipe). A section of the naked liner and protective jacket between two SaniGrip couplers were sent to Dialog Fitzroy in New Plymouth to undergo a destructive test. The liner, with no host pipe, burst and just over 78 bar. Please refer to the short clip below which was taken at Dialog Fitzroy during the destructive test.

SaniTube Installation – Technical Overview

Please see the SaniTube installation technical overview video

Completed Lining Projects

Mt Albert, Wellington – Reline two 1.8km long concrete encased DN180 cast iron pipes. For further information please click here

Willow Place, Queenstown – Reline 400m long section of DN400 cast iron pipe. For further information please click here

In Progress Lining Projects

TDC Contract 2338 Te Ana Wai watermain renewal, Cave – South Canterbury. The projects involves relining 3.5km DN350 existing concrete lined stell pipe that was in excess of 100 years old with the operating pressure being at PN25.

TDC Contract 2469 Pareroa Gorge Stage 2, South Canterbury. The project involves replining 5km of DN425 raw water supply main that is in excess of 100 years old with the operating pressure at PN16.

TDC Contract 2501 Richard Pearce Drive, Temuka. Reline existing DN200 asbestos watermain with operating pressure of PN12.5.

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Hadlee & Brunton

The company has been in business since 1906.
Hadlee & Brunton prides itself on providing the highest level of
plumbing, drainage, drilling, roofing & maintenance service to the
public, local body and rural sectors, and we guarantee it.

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Hadlee & Brunton Ltd
6 North Street, Timaru
(03) 684 3817
plumbers@hadleeandbrunton.co.nz

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