Mayer 316L Stainless - FKM
Mayer 316L Stainless - FKM
Quality systems, built for New Zealand conditions.
Quality systems, built for New Zealand conditions.
Select Product
Stainless for High-Demand Industrial Environments.
Mayer 316L Stainless Steel press-fit fittings with red FKM O-rings are designed for industrial applications requiring resistance to higher temperatures, compressed air, and a wide range of chemicals (refer to chemical compatibility and O-ring selection charts). The system is recommended for operating temperatures between –20°C and 199°C, with a maximum working pressure of 16 Bar. For any installations over 99°C please contact your local USCO representative.
For chemical or specialised system design, or if you are unsure about suitability, contact USCO for installation and application guidance.
FKM seals are suitable for:
· Heating water
· Condenser water
· Compressed air
· Industrial and plant applications
· Chemical dosing
· Non-potable systems
· Solar applications - indirect
Mayer does not recommend FKM for steam applications.
Stainless for High-Demand Industrial Environments.
Mayer 316L Stainless Steel press-fit fittings with red FKM O-rings are designed for industrial applications requiring resistance to higher temperatures, compressed air, and a wide range of chemicals (refer to chemical compatibility and O-ring selection charts). The system is recommended for operating temperatures between –20°C and 199°C, with a maximum working pressure of 16 Bar. For any installations over 99°C please contact your local USCO representative.
For chemical or specialised system design, or if you are unsure about suitability, contact USCO for installation and application guidance.
FKM seals are suitable for:
· Heating water
· Condenser water
· Compressed air
· Industrial and plant applications
· Chemical dosing
· Non-potable systems
· Solar applications - indirect
Mayer does not recommend FKM for steam applications.
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 FKM 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.
• 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.

V-Press Profile
Consistent, reliable sealing, press after press.
Mayer fittings use a V-press profile with premium FKM 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.
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.

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 FKM
Complete System Range (15–108 mm)
All pipes are compliant with AS 5200.053 and supplied in straight 5.8 m lengths, with outside diameters from 15 mm to 108 mm.
All pipes are compliant with AS 5200.053 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)
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.
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 120ºC
-20ºC to 120ºC
Pressure Rating
16 Bar
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
13
15
1.0
0.351
0.484
0.133
5.8
DN20
19.6
22
1.2
0.625
0.928
0.302
5.8
DN25
25.6
28
1.2
0.805
1.321
0.515
5.8
DN32
32
35
1.5
1.258
2.062
0.804
5.8
DN40
39.6
42
1.2
1.521
2.718
1.195
5.8
DN50
51
54
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
Certifications
Product
Name
Certificate Number
Standard
Date Issued
Mayer Stainless Press Fit Piping System.
Branz
Appraisal No: 1033
NZBC - B2, F2, G10, G12.
17/11/2023

Mayer Stainless 316L Pipe and Press Fit Fittings
Watermark
Licence No: VM-022882
AS 3688:2016 and AS 5200.053-2008
02/07/2013

Mayer Stainless 316L & 304 stainless steel tube and press fit fittings (EPDM)
WRAS
WRAS Approval Number: 2307003 Certificate No: 1704328
EN 10312 and DVG-W543
April 2022

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