Flexible Metal Hose assemblies manufactured with AGA approval for gas applications and Watermark Licence for drinking and non-drinking water applications.

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Flexible Metal Hose assemblies installed in a Natural Gas, Town Gas, Tempered Liquefied Petroleum Gas (TLP) or Liquefied Petroleum Gas (LPG) application need to be manufactured and certified to a strict set of rules in compliance with the Australian Gas Association (AGA) approval to AS4631-2005. Certificate No 6745.

Standard and Super-flex hose assemblies from 6mm to 50mm I.D. MWP of 2600kPa. Standard and Super-flex hose assemblies from 65mm to 200mm I.D. MWP of 1500kPa.

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Industrial Stripwound Interlocked hose for the suction and discharge of dust, abrasive and granular products.

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Convoluted Technologies manufactures Interlocked hose by helically winding a preformed strip of 304 grade stainless steel over a nominal bore forming mandrel and folding together the adjacent edges.

Depending on the preformed shape of the strip, strip thicknesses and mandrel shape; we are able to make a range of different products with a similar outside appearance. Therefore, it is most important that our sales staff are fully informed about the application where the product is to be used.

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Rope lagging of a 6" chemical composite dock hose.

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Rope lagging is an effective method to prevent abrasion damage on the outside of a composite hose assembly, without compromising the bend radius of the hose too much.
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Flexibility in fitting choice with Convoluted metal hose assemblies.

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Any weld-able fitting can be incorporated into a convoluted hose assembly, and in any configuration, while other hose types require special shanks and collars. This can be a benefit over other hose types that would require multiple threaded connections to connect several hoses together. Every threaded connection is a potential leakage point, so every welded fitting eliminates a leakage point and can facilitate installation.

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Corrugated braided flexible metal hose with interlocked amour

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Hose internal and external protection with interlocked amour.

To prevent abrasion and over bending, an amour metal interlocked hose can be used as a protective cover over wires or even other hoses. Interlocked hose can be very abrasion resistant, making it ideal for use as protection to corrugated hose from either abrasive media or external damage. Interlocked hose can also be applied to the outside of a corrugated hose to prevent it from over bending. Bending a corrugated hose is one way to excessively fatigue the metal hose of an assembly. However, interlocked hose cannot be over bent without pulling the hose apart, making it an excellent bend restrictor when installed on a corrugated assembly.

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Convoluted Technologies - Celebrating 15 years

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Dear Customers, Convoluted Technologies Pty Ltd. On September 8th 2018, we celebrated 15 years in business.

We would like to say thank you for your support over these last 15 years of business. It has been a fantastic journey from our humble beginnings, to the mature manufacturing / supply business we are today.

We have big plans for the future and hope to receive the same support from our loyal customers.

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Convoluted Technologies Pty Ltd offers Australian manufactured composite hose, with customising end connections.

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This 4" vapour lock Composite hose was manufactured from our facility, based in Seven Hills NSW.

Our hose manufacturing programme guarantees our customers a fully engineered, trialed and tested quality product to the relevant Australian or International standards.

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Flexible metal hoses with fire sleeving installation

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Convoluted Technologies Pty Ltd. manufactured stainless steel flexible metal hoses installed onsite; & are performing well to the customer’s expectation.
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The importance of keeping spare flexible metal hoses for critical applications should not be overlooked.

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Here is a perfect example of a customer who identified their minimum stock holdings of critical parts, so they don’t experience unexpected long down times when the product reaches its operational life cycle.

Our large inventory of raw materials allows us to help you out in the shortest possible lead time. No matter where you are in the country, our freight companies offer next flight services and direct courier services.

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Manufacturing up to a 6” Code 901 composite hose, with 10 Bar working pressure

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Manufacturing up to a 6” Code 901 composite hose, with 10 Bar working pressure; inner and outer wire galvanised carbon steel complete with stainless steel 316 ANSI 150 flanges (one end floating).

Manufactured and assembled by Convoluted Technologies Pty Ltd. and complies with AS2117 Hose and hose assemblies for petroleum and petroleum products - Marine suction and discharge standards.

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Upgrade to the new ISO 9001 2015 Quality Management System requirements

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As our ongoing commitment for supply of quality products and services, we are pleased to announce our recertification to the new: ISO 9001:2015 Quality Management System standard with the following scope:

Manufacture and supply of flexible metal hose assemblies, interlocked metal hose, composite hose, composite hose assemblies, pressure pipe welding & pipe fabrication, thermal protective sleeving and associated products.

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Weinhold WE-ER

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Convoluted Technologies Pty Ltd is happy to announce, that we are now the new endorsed distributor of Weinhold WE-ER pressure couplings and steam equipment Equipment for the Australian and New Zealand markets.
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Oxylancing lances

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New product release, Convoluted Technologies Pty Ltd is proud to announce we are able to supply the oxygen Lancing industry with a complete selection of lance pipes.

Oxylances The Oxylancing process is commonly used in metal smelters to open tap holes, tundish nozzles, ladle sliding gates - for oxygen injection, ladle maintenance activities, skull cutting and scrap metal cutting. Oxylances can also be used in the maintenance industry; it is an easy way to remove frozen pins on earth moving equipment or in industrial applications and for the demolition industry to cut fast through large volumes of concrete, where noise or vibration are unacceptable, or where speed is essential particularly on reinforced concrete. The equipment is extremely simple and easy to operate, and the capital cost in comparison to drills etc. is negligible

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BEDA oxygen technik

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Convoluted Technologies Pty Ltd is happy to announce, that we are now the new endorsed distributor of BEDA OXYGENTECHNIK Equipment for the Australian and New Zealand markets.

Convoluted Technologies is the supplier of choice to Australian heavy industry with stainless steel flexible metal hose, thermal protective silicone coated fire sleeving, composite hoses, pressure piping and associated products. We now employ over twenty staff members and have a vast amount of experience in the supply to the Australian heavy industry.

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Australian manufactured interlocked hose

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New product release, Convoluted Technologies Pty Ltd is proud to announce that their new interlocked hose manufacturing facility is out of commissioning stage and into full production.

We are a Manufacturer of stainless steel Interlocked Hose, also known as Strip wound Hose, by helically winding a preformed strip of 304 grade stainless steel over a forming mandrel and folding together the adjacent edges in compliance with ISO 7369 and ISO 15465 standards.

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Flexible metal hose covered with silicon protective fire sleeving

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Our silicon coated aerospace fire sleeving is made of braided fibreglass yarn, in a flexible substrate that is then coated with high- grade silicone. The sleeving is manufactured to AS 1072 standards and has a temperature rating of 260 Degree Celsius (continuous) and will withstand a short term molten splash at 1,200 Degree Celsius. We stock large quantities from ¼ up to 5” inside diameter. We will supply full cut lengths and full box orders. (30 meter per box)
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Composite hose end connections programme

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Convoluted Technologies Pty Ltd. has developed a complete range of crimped end connections to complement our in-house manufactured composite hose. The combination of our hose, our end connections and our tested and trialed assembly procedures allow us to manufacture a quality guaranteed product.
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Australian manufactured Composite hose

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Convoluted Technologies is proud to announce that their newly built, fully automated Composite hose manufacturing facility is out of commissioning stage and into full production.

Our Composite Hose is manufactured by winding a combination of reinforcing wires, fabric layers and a special selection of barrier films around a solid mandrel from ¾ inch to 6 inch inside diameter.

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Upgrade to the new DNV ISO 9001 2008 Management System Certification

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Convoluted Technologies Pty Ltd has successfully passed the recertification audit going to the new ISO 9001:2008 standard: Det Norske Veritas (DNV) Management System Certification.

This certification includes: The manufacturing of flexible metal hose assemblies and associated products.

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Our TIG welder manufacturing a stainless steel braided hose assembly

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Flexible metal hoses can be manufactured to the following Australian standards.

AS 4041 is a pressure piping standard.

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Contact us

  • Head Office
    Unit 2 / 163 Prospect Highway
    Seven Hills NSW 2147, Australia
    Postal Address
    PO Box 559
    Seven Hills NSW 1730, Australia
  • Sales & Engineering
    F: 02 9838 9611  Int: +61 2 9838 9611
  • Email us
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Eastern States Sales Rep
    QLD, NSW, ACT, VIC, TAS:
    Siem  0422 398 298
  • Western States Sales Rep
    WA, SA, NT:
    Jim    0402 582 120
If you would like more information, please fill in the form below. You will be contacted as soon as possible.
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Quality Systems

DNV GL ISO 9001 JAS ANZ Mark

ISO 9001:2015 Quality Management System standard with the following scope: Manufacture and supply of flexible metal hose assemblies, interlocked metal hose, composite hose, composite hose assemblies, pressure pipe welding & pipe fabrication, thermal protective sleeving and associated products.