General

Flexible, durable, lightweight, corrosion-resistant corrugated stainless steel tubing (“CSST”).

Our CSST come standard in 304 stainless steel (annealed). Other Stainless Steel grades are available for order. Both our tubes and our adapter kits are inline with SANS1689. Test report available on request.

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Product Dimensions

Material Composition

Corrosion Resistance Limitations

Easyflex standard CSSTs are manufactured from 304L grade stainless steel, which provides a good corrosion resistance for most applications.
However, under certain conditions, such as very high chlorides levels, a different grade of stainless steel would be required.

Friction loss and tube diameters

Corrugated stainless steel tubes generate a higher friction loss than that of smooth bore pipes.

CSST diameter size selection should be done in a manner that will compensate for CSSTs friction and allow for the required supply, at the fixture, under peak conditions.

The following chart provides an approximate pressure drop for each of Easyflex CSST sizes; please consult the chart prior to design.

Product Standards and Listings

Testing

Certification

Corrugated Stainless Steel Tubing has meet the required Standard and is in full Compliance with ASTM A 312. Brass Fittings (DZR) has met the required Standard and is in full Compliance with EN12164 and SANS1303. Both the CSST and required adapter kits comply with SANS1689.

Fitting

The following diagram illustrates the method of connecting:

Installation

STEP 1:

Measure the required length of tubing

step 1
 

STEP 2:

Cut the tubing using a pipe cutter
(cutting should be done within a groove on a straight section of the pipe)

step 2
 

STEP 3:

Remove the brass ferrule fitting from the required brass fitting

step 3
 

INSTALLATION NOTES:

• Easyflex CSST when cut may result in sharp edges, please take the necessary precautions when working with the tubes.
• Easyflex adapter kits are designed to be installed with brass compression fittings which comply with SANS 1067-1, parts and installation thereof must comply with SANS 1689 – “Corrugated stainless steel piping systems for hot and cold water supplies”

 

STEP 4:

Fit the brass nut onto the tube with the outer grommet facing upwards

STEP 5:

Place the silicone O’ ring on the 2nd groove from the end

steps 4 & 5
 

step5 - 6
 

STEP 6:

Fit the inner guide into the DZR brass fitting and tighten by hand

step 6
 

STEP 7:

Tighten to the recommended torque values using a wrench

step 7
 

RECOMMENDED TORQUE VALUES:

FITTING SIZE NEWTON METERS
15mm 54 - 60
20mm 60 - 65
25mm 98 - 103
30mm 163 - 190

torque values
 

ADDITIONAL NOTES:

• Fixing methods – when fixing CSST to walls or other surfaces the fixtures must comply with SANS 1689
• Underground and within walls / structures installations - Only PVC sleeved pipes shall be used underground, unless it is coated with zinc-rich epoxy primer or coated with thermally sprayed aluminium (TSA) in accordance with the coating manufacturer’s instructions, when stress corrosion cracking is a concern, especially at temperatures above ambient. The installation shall comply with the requirements of SANS 10252-1

DISCLAIMER:

Please note that the steps and information provided above serve as a guide only. It is the sole responsibility of the customer / user to fully comply with the applicable standards, practices and codes set by the relevant plumbing and building authorities. Further to this all requirements stipulated in the corresponding South African Bureau of Standards must be adhered to. Failure to do so is at the full risk of the customer / user.

Only licensed and qualified professionals should install, modify or repair Easyflex’s CSST. The required accessories specified in the applicable standards are to be used in conjunction with Easyflex’s CSST. All reasonable precautions must be taken to ensure that, prior to installation or during construction and assemble, Easyflex CSST are not damaged or exposed to harmful chemicals.