Welcome to Convoluted Technologies Pty Ltd (Established in 2003)

At Convoluted Technologies Pty Ltd (Convoluted), we pride ourselves on the quality of products and services we deliver to our broad range of clients. We wish to take this opportunity to keep you informed on what Convoluted has on offer to support the hosing and pressure piping industry.

Convoluted head office and main operations are in Seven Hills (a suburb of Sydney) - NSW Australia, with two supporting service branches in Breaside VIC and Bibra lake WA from here we manufacture and supply our products throughout Australia and Overseas.

The company is accredited to the Quality Management System standard: ISO 9001: 2015.

We have a experienced Oil & Gas, Chemicals and Marine projects division.

Our expertise in our field assures our clients reliable and consistent quality supply of products manufactured in our own facilities, or by carefully selected reputable international partners.

Convoluted is an Australian owned manufacturer of: Composite Bulk hose; Composite hose assemblies; Flexible metal hose assemblies; Interlocked industrial metal hose also known as Strip wound hose; Polygonal interlocked exhaust hose; interlocked metal diffusion armour: Flexi Flue and Bitumen Transfer Hose Assemblies.

We import and stock a range of: Rubber expansion joint bellows and flanges in Table D/E, ANSI 150 and DIN 16 in carbon steel and stainless steel; Thermal Protective fire sleeving like: Silicone coated aerospace grade fibre glass sleeve; plain fibre glass sleeve; ultra-high temperature silica sleeving; stainless steel braid; sleeving attachment crimp rings; custom made hose tags; stainless steel cable ties, ship to shore hoses, ship to ship hoses and ship to rig hoses and associated products.

We have overseas metal casting capabilities in Bronze, Aluminium and Stainless Steel using our own moulds for: Composite hose fittings (Petro-lock and Vapour-Lock); AS2475 threaded hose connections for bituminous materials; Mill specification Camlocks (CT lock); Heavy design industrial BSPT and NPT threaded male hex hose tails (CT hex); and other custom-built fittings.

Convoluted is an endorsed distributor of BEDA-Oxygentechnik lancing equipment and Weinhold WE-ER pressure couplings and steam equipment for Australia and New Zealand.

To compliment the oxygen lancing holders, we also supply the oxygen lance pipes in plain mild steel; Calorized lance; Thermic wire filled Lance; and lance igniters.

Additional services we offer are: Industrial oxygen cleaning; Used Bitumen Hose Cleaning and Re-Certification; in-house Hose Pressure Testing; Welding Services like Food Grade Fitting Welding; Pressure Pipe Welding; and Fabrication Services.


  • Custom made composite hose assemblies
  • Fuel Code 1001 composite hose assembly complete with Petrolock end connections
  • Hydrocarbon composite transfer hoses
  • Oil Code 901 composite hoses with stainless steel flanged ends
  • Chemical Code 969 composite hose with 6 inch flanged end
  • Chemical and solvent composite hoses
  • Chemical Marine PTFE Code 971 composite hoses with stainless steel flange ends
  • Chemical Code 969 composite hose with a 6 inch camlock
  • Annular corrugated metal hose assemblies
  • Stainless steel flexible metal refrigeration hose
  • Pump Connectors
  • Cryogenic metal hose assembly
  • Metal gas hose
  • Flexible metal gas hose assembly
  • Stainless steel flexible metal vibration eliminators
  • Super flex flexible metal hose assemblies
  • Metallic hose assembly
  • Braided hose assembly
  • Standard flex hose assembly complete with stainless steel flanges
  • Flanged Superflex metal hose assembly
  • Industrial metal interlocked grain hose
  • Flexible interlockeds metal diffusion armour
  • Polygonal interlocked exhaust hose complete with lap band clamps
  • Pneumatic flexible metal conveyance hose
  • Bitumen fittings  transfer hose assemblies AS2475
  • Flexible metal interlocked bitumen transfer hose
  • Bitumen spayer handbar-hose assemblies
  • Standard flex bitumen transfer hoses
  • Convoluted Technologies products complete with CT Lock couplings
  • CT Lock Camlocks 633B style
  • Female Quick connect coupling 633 C style
  • CT Lock kamlock couplings range
  • Stainless steel mil spec camlock coupling with crimp ferrule
  • CT Lock Camlocks coupling 633C style
  • CT Lock Camlocks 634B style
  • CT Lock mil spec cam and groove couplings
  • CT Hex hose tail NPT thread in stainless steel 316 grade 20 mm to 100 mm NB fully machined long tail
  • CT Hex stainless steel hose tail with crimp ferrule
  • CT Hex hose tail BSPT and NPT thread in Brass 20 mm to 100 mm NB fully machined long tail
  • CT Hex hose tail BSPT thread with seat in stainless steel 316 grade 20 mm to 100 mm NB
  • Silicone coated fibre glass fire sleeving on a flexible metal hose
  • Silicone coated fibre glass fire proof sleeving Silica sleeving Fibre glass sleeving Stainless steel braiding
  • E glass also known as Fibre glass sleeving
  • Stainless steel over braiding
  • Chimney liner with adaptors
  • Flexi flue
  • Flexible flue with adaptor
  • Wood fire flue
  • Purge welding for food industry
  • Fabrication and pressure welding job to the AS 4041 standards
  • Pressure pipe welding to the ASME IX B31.1 Code
  • Pipe spools fabricated by Convoluted Technologies Pty Ltd
  • Pressure pipe TIG welding and fabrication by Convoluted Technologies Pty Ltd
  • Food grade TIG welding assemblies
  • Welders qualification and weld procedures were required for these pipe spools
  • Welding in compliance with the ASSDA food specifications
  • V loop hose expansion joint for earthquakes
  • Fire loop seismic joints for fire sprinklers
  • Flexible expansion loops for water gas fire sprinklers and sanitary
  • Stainless steel hose expansion joint for seismic thermal and building movement
  • Convoluted Technologies Pty Ltd Rubber Expansion Joint Supplier Australia Sml
  • Convoluted Technologies Pty Ltd CT REJ Rubber Bellows Sml
  • Convoluted Technologies Pty Ltd Rubber Bellows Supplier Australia Sml

    Contact Us
    2 / 163 Prospect Highway
    Seven Hills NSW 1730, Australia
    PO Box 559
    Seven Hills NSW 1730, Australia
    Siem   0422 398 298
    Steve   0402 582 120
    WA, SA, NT
    Brian  0437 890 344
    VIC, TAS
    Benjamin  0438 096 974
    Upendra 03 85879300
    or 0409829024

    Unit 1 / 24 Horus Bend,
    Bibra Lake WA 6163, Australia

    P: 08 9434 9899 Int: +61 8 9434 9899


    Unit 12 / 238 Governer Road
    Breaside VIC 3195, Australia

    P: 03 8587 9300  Int: +61 3 8587 9300

    If you would like more information, please fill in the form below. You will be contacted as soon as possible.
    Please fill in all required fields.
    Fill out my online form.

    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.