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TECHNICAL

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What is Spiral Welded Tube?

Spiral welded tube is created using a process where a continuous full penetration MIG (metal inert gas) weld overlay is used to create tube in a spiral pattern. Typical industry applications include HVAC / refrigeration, geothermal, liquid transfer, waste water, irrigation and pumping.

Our spiral welded tube and fittings are manufactured to internal dimensions. This means sizing is based on the internal diameter and wall thickness (gauge) of the tubing. All our spiral welded stainless steel tube is manufactured from high quality coil conforming to ASTM: A240.

 

The Metal Company stock a range of fittings to suit spiral welded tube, including 45° & 90° bends, tees, concentric reducers, caps, saddle clamps and flanges & accessories.

Aside from the standard range, The Metal Company can source or manufacture various spiral welded tube and fittings within New Zealand or internationally. Options available on indent include spiral welded tube and fittings in stainless steel grade 316, spiral welded tube up to 8 metres in length and spiral welded tube and fittings in sizes up to 24”.

What is the difference between OD and ID tube?

Advantages of Press-Fit Systems

Press-Fit Stainless Steel Specifications

Press-Fit Seal Specifications

Why are BSP Fittings so common in New Zealand?

The Metal Company Flat-Faced BSP Mac Unions

Common Grades of Aluminium

The Tasman (Lightweight) Flange Thickness

About Insertion Rubber Seals

About HNBR Rubber Seals

About Nitrile Rubber (NBR) Seals

About EPDM Rubber Seals

About EPR Rubber Seals

About Silicone Rubber Seals

About Viton Rubber Seals

About Teflon PTFE Rubber Seals

Is Stainless Steel ferrous or non-ferrous?

Is Aluminium ferrous or non-ferrous?

Does Stainless Steel and Aluminium react with each other?

Does Stainless Steel rust?

What temperatures can Stainless Steel withstand?

Can Stainless Steel be welded?

Is Stainless Steel magnetic?

What is Stainless Steel?

About our sight glasses

Ball Lock Gas Fittings

About Liquid Level Gauges

About our Lugged Butterfly Valves

What does RHS, SHS and CHS stand for?

What is a Mikalor Clamp?

What is a NPT Thread?

What is the difference between cast iron and cast steel?

Butterfly Valve diagram and symbol. How do they work?

Types of Butterfly Valves and what type of valve is a Butterfly Valve?

How do you identify BSP Threads?

Is a Tri Clover Union the same as a Tri Clamp Union?

What is a Tri Clamp or Tri Clover Union Ferrule?

What does SPI stand for?

Europress 15, 22, 28 & 35 Press Joint Instructions

Europress 42, 54, 76.1, 88.9 &108 Press Joint Instructions

Possible Causes of Europress System Leaks

Thermal Expansion calculation when installing pipework

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