Mayer 316L Stainless - Gas

Quality systems, built for New Zealand conditions.

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Stainless Press-Fit for Above-Ground Gas Systems.

Mayer 316L stainless steel press-fit pipes and fittings are suitable for above-ground natural gas and LPG installations, as well as selected liquid gas and chemical applications (refer to compatibility and O-ring selection charts). The system is AGA certified to AS 3688:2016.

For all gas installations, HNBR yellow O-rings must be used to ensure correct sealing performance and compliance. All work must follow the relevant New Zealand gas codes and standards.

For chemical or specialised applications, or if you are unsure about suitability, contact USCO for guidance.

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Stainless Press-Fit for Above-Ground Gas Systems.

For all gas installations, HNBR yellow O-rings must be used to ensure correct sealing performance and compliance. All work must follow the relevant New Zealand gas codes and standards.

For chemical or specialised applications, or if you are unsure about suitability, contact USCO for guidance.

Enquire now

Key Features

Premium 316L Stainless Steel  
(EN 1.4404)

High-grade, Austenitic stainless (SS316L) steel designed for strength, hygiene, and corrosion resistance in potable water and harsh environments.  

• New Zealand certified for hot and cold water systems.
• Stable mechanical performance across temperatures.
• Safe, compliant, long-term system integrity  

Suitable for potable water, process water, HVAC (chilled & heating), glycol cooling, RO water and more.

Leak Path and Crimp Indicator

A jointing system designed for installers.

Leak Path: Any unpressed joint leaks at test stage, making misses easy to spot.
Crimp indicator: A cellophane press indicator provides quick visual confirmation in real install conditions.  Available in sizes 15mm - 54mm.

It’s faster, safer, and cuts out the costly rework associated with welded or threaded systems.

V-Press Profile

Consistent, reliable sealing, press after press.

Mayer fittings use a V-press profile with premium HNBR O-rings for proven performance across a wide range of applications.

With a larger press area than standard M-press systems, the V-press profile encapsulates the O-ring from both sides, delivering a stronger, more durable seal.

Clear Markings & Full Traceability

All pipe and fittings are clearly marked with:

• Material grade (316L)
• Pressure & temperature ratings
• Dimensions
• Certification marks
• Batch traceability

Premium 316L Stainless Steel  
(EN 1.4404)

High-grade, Austenitic stainless (SS316L) steel designed for strength, hygiene, and corrosion resistance in potable water and harsh environments.  

V-Press Profile

Consistent, reliable sealing, press after press.

Mayer fittings use a V-press profile with premium HNBR O-rings for proven performance across a wide range of applications.

With a larger press area than standard M-press systems, the V-press profile encapsulates the O-ring from both sides, delivering a stronger, more durable seal.

Leak Path and Crimp Indicator

A jointing system designed for installers.

It’s faster, safer, and cuts out the costly rework associated with welded or threaded systems.

Clear Markings & Full Traceability

All pipe and fittings are clearly marked with:

• Material grade (316L)
• Pressure & temperature ratings
• Dimensions
• Certification marks
• Batch traceability

Specifications

Mayer Stainless Press 316L Gas

Complete System Range  (15–108 mm)

All pipes are compliant with AS 3688-2016 and  supplied in straight 5.8 m lengths, with outside  diameters from 15 mm to 108 mm.

Larger Diameters

For pipe sizes above 108 mm, refer to:  Mayer 316L Roll Groove (link)

Approved Press-Fit Tools

Only REMS and Zupper press tools are approved  for use with Mayer stainless, in line with warranty   requirements.   

See the Technical Downloads section below for product brochure and for tools available for   purchase or hire.

Operating Temp

-20ºC to 99ºC

Pressure Rating

16 Bar

Tube Specification

These specifications are valid for both 316L  and 304 stainless steel.

Nominal Size

Inside Diameter

Outside Diameter

Wall Thickness

Dry Weight kg/m

Wet Weight kg/m

Volume l/m

Tube Length

DN15

1.0

0.351

0.484

0.133

5.8

DN20

19.6

1.2

0.625

0.928

0.302

5.8

DN25

25.6

1.2

0.805

1.321

0.515

5.8

DN32

1.5

1.258

2.062

0.804

5.8

DN40

39.6

1.2

1.521

2.718

1.195

5.8

DN50

1.5

1.972

4.015

2.043

5.8

DN65

72.1

76.1

2.0

3.711

7.794

4.083

5.8

DN80

84.9

88.9

2.0

4.352

10.58

6.232

5.8

DN100

104

108

2.0

5.308

13.810

8.495

5.8

Warranty

The Mayer Stainless Steel system is designed for a 50-year service life and is guaranteed not to leak for 25 years when installed to specification.

Liability

Mayer Stainless Steel provides a 10-year liability warranty covering material damage to third parties, including investigation, removal, replacement, exposure, or disassembly of defective components. After the initial 10 years, there is a further 15 years of material replacement.

For full details, refer to the Mayer Warranty Statement in the downloads section.

Relevant Fields of Application

Gas

Gas systems demand absolute integrity. Materials, jointing and sealing must meet recognised gas compliance standards and perform without compromise under pressure.

Certifications

Product

Name

Certificate Number

Standard

Date Issued

Mayer Stainless 316L Press Fit Fittings.

AGA Certified Product

Certificate No: 9096

AS 3688-2016

15/06/2023

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Mayer 316L Stainless - Gas