MM Kembla has combined the experience and knowledge of over 100 years of Australian metal tube manufacturing with German engineering to produce the KemPress Stainless press-fit connection system.

With a warranty of 25 years for potable water and fuel gas applications, and a design life of 50 years, KemPress Stainless offers you the peace of mind and the simplicity you want with the highest quality, most reliable and trusted press-fit system.

Back to Standards

KemPress Stainless Steel Fittings – Australian Standard AS 3688

MM Kembla® has combined the experience and knowledge of over 100 years of Australian copper tube manufacturing with press-fit technology & engineering to produce the KemPress® copper press-fit connection system. With a warranty of 25 years, and a design life of over 50 years, KemPress® offers you peace of mind and the simplicity that you want.

Kembla Stainless Steel Tube and KemPress Stainless press fittings have been optimised for combined use, with fittings produced using Kembla Stainless Steel Tube. When you need the highest quality stainless streel press-fit system, use Kembla Stainless Steel Tube, KemPress Stainless Fittings and KemPress Press Tools. Our press tools with jaws to suit stainless steel are of the highest quality, are the lightest on the market and have the longest intervals between servicing.

Unpressed Fitting ID – Leak Path

KemPress Stainless fittings for Water and Gas are designed to allow a small amount of water or air to escape from any fitting that is un-pressed. This feature ensures a system isn’t commissioned with unpressed fittings installed that under high pressure may cause a temporary seal and cause a future leak and reduce the risk of costly failures, rectification and damage to property. The leak path feature is activated by performing a low pressure test prior to normal pressure testing as below.

Push & Stay Technology

Press copper fittings up to DN50 are equipped with the unique ‘Push & Stay’ feature. Utilising strict process control, the tightest of manufacturing tolerances and the most accurate production technology, KemPress fittings have been designed to ensure the fitting is tight enough to stay on the tube prior to pressing. Such a feature is symbolic of the high quality manufacturing and quality control processes employed during manufacture. KemPress “Push & Stay” has been designed to minimise risk during the installation process and make KemPress fittings easier to install  with the following benefits:

  • Fitting is tight enough to complete rough in before pressing
  • Fitting won’t fall off when preparing for vertical installations
  • Ensures plumber has right design & tube placement prior to pressing
  • Minimises risk of fitting slipping and minimum tube insertion depth not met

Bluetooth Equipped KemPress Tools

KemPress KPS2 and KPL3 press tools are equipped with smart Bluetooth technology so you can stay fully connected with your job site and installation performance. The innovative technology combined with the Novocheck App means you can manage the job straight from your smart phone or tablet. The ability to monitor and maintain your tool performance as well as installation performance reduces installation risk and increases the quality of your installations. Pre-start tool checks will ensure your tools are ready to work, service logs will mean you can see when your tool needs its next service and generation of site reports means you can detect any unpressed fittings by comparing the number of completed presses to those required on each section of work.

Download the NovoCheck App from the App Store or Google Play and connect with your tool today.

KemPress Stainless Fittings are available in 3 types based on their application and O-ring; Water, Gas & High Temperature. Inside each fitting is a sealing element called an Elastomeric O-ring. Fittings are available for Water (EPDM – Black), Gas (HNBR – Yellow) and High Temperature/Industry (FKM – Red). They are not interchangeable for their different applications.
KemPress Stainless fittings are manufactured and quality controlled to AS3688, with 316L (material EN1.4404) for parts made from tube, 316Ti (material EN1.4571) for threaded fittings and 316 (material 1.4408) for precision cast fittings, all having Watermark Approval # 23087 for Standard (EPDM) and Industry (FKM) fittings.

KemPress fittings are not suitable for Medical Gas, Refrigeration & Air Conditioning applications, Acetylene, Urea Solution, Methanol, Glycerin Triacetate, Coolant Inhibitor, Sodium Hydroxide or Ammoniac-gaseous.

For further information regarding suitability of KemPress fittings for applications, refer to the Application Guide downloadable in the “Support” section at the bottom of this page contact MM Kembla customer service.

Water

Standard press fittings utilise a black EPDM (Ethylene Propylene Diene Monomer) O-ring sealing element. This O-ring is suitable for hot and cold potable water applications and some industrial applications. It is not suitable for aromatic hydrocarbons, di-ester based lubricants, halogenated solvents or petroleum based oils and greases.

Gas

Gas applications use a HNBR (Hydrogenated Nitrile Butadiene Rubber) O-ring sealing element. HNBR has been used for decades in automotive and industrial applications. It is designed for gas, oil and chemical resistance. It is not suitable for drinking water. Gas fittings have a yellow O-ring and are clearly marked with a distinctive yellow colour and the word GAS.

High Temperature (HT)

Industry or High temperature applications use an FKM (fluorocarbon) O-ring sealing element. Ideal for petroleum products, fuels including those blended with ethanol or methanol, diesel, biodiesel, mineral oils and greases, silicone oils and greases, high vacuum, strong acids, ozone, weather and very high temperatures. This O-ring is suitable for applications where temperatures exceed 120°C (up to 200°C), often at the collector. HT fittings have a red O-ring and are clearly marked with a distinctive red colour and the word HT.

KemPress Stainless O-Ring Specifications

Colour CodeBlackRedYellow
Fitting TypeStandardIndustryGas
Material CodeEPDMFKMHNBR
MaterialEthylene Propylene Diene MonomerFluorocarbonHydrogenated Nitrile Butadiene Rubber
Maximum Continuous Temperature Range °C-30°C up to 120°C-20°C up to 200°C (depending on the medium)-20°C up to 100°C
Peak Short Term Max. Temp °C150°C280°C100°C

KemPress Stainless Design Pressures Using Standard Tools, Jaws and Slings

ApplicationPipe External DiameterSafe Working Pressure
Water and Aqueous Solutionsd ≤ 22mm40 bar
d = 28-35mm25 bar
d = 42-108mm16 bar
Flammable/Fuel Gasesd ≤ 108mm5 bar
Technical Gases & Compressed Air (Non-Toxic, Non-Flammable)d ≤ 108mm16 bar
Fire Sprinkler Systemsd = 22-76.1mm16 bar (EPDM & FKM for VdS)
12 bar (EPDM & FKM for FM)
d = 108 mm12.5 bar (EPDM only for VdS)
12 bar (EPDM & FKM for FM)

Kembla Stainless tube is 316L grade (EN 1.4404) complying with DIN EN 10088, fabricated according to DIN EN 10312 and DVGW – W 541 and is supplied as straight 6m lengths with outside diameters in the range 15mm – 108mm. It is compliant with AS 5200.053 and has Watermark Approval #23151. Kembla Stainless tubes combine low carbon, at less than 0.03%, with a minimum molybdenum content of 2.3% for improved corrosion resistance. Low carbon, austenitic stainless steel is roll formed and then longitudinally plasma-inert gas-welded to precisely form the tubes. Kembla Stainless tubes are bright annealed and solution heat-treated, resulting in an attractive, hygienic and highly durable product. For more information see Kembla Stainless Steel Tube

MM Kembla guarantees the leak tightness of the KemPress Stainless pressed joints for standard potable water and gas applications, regardless of the manufacturer of the pressing tools, providing the pressing machines and pressing jaws and/ or slings meet the following requirements:

  • The pressing tools must be maintained and used according to the respective manufacturer’s guidelines.
  • KemPress press tools and standard pressure jaws/slings are fully compliant as follows:
  • KPS/KPS2 or tools with min. press force of 18kN for 15 mm – 28 mm inclusive
  • KPL/KPL2/KPL3 or tools with min. press force of 30kN for 15 mm – 54 mm inclusive
  • KPXL/KPXL2 or tools with min. press force of 32kN for 15 mm – 108 mm inclusive
  • The correct EN size jaw/sling shall be used for the fitting
  • With KemPress Stainless fittings up to including 54 mm in diameter, pressing jaws and slings for press connections of the type M-MM must exhibit the original profiles SA, M or V
  • With KemPress Stainless fittings greater than 54 mm in diameter, pressing jaws and slings for press connections of the type M-MM must exhibit the original profiles M.

  • Fast & easy to use – Considerably faster than traditional jointing methods
  • No need to drain water out of the system
  • No waiting for adhesives to set
  • Flame free connection – no hot works permit required and ideal for retrofit projects
  • Same tools used for the KemPress® Copper system, simply change jaws, adaptors and slings to suit stainless and press profile as required.
  • High quality fittings manufactured and quality controlled to AS 3688
  • High quality 316L stainless steel ensures higher corrosion resistance
  • Push & Stay feature
  • Unpressed Fitting ID (Leak Path) feature
  • Watermark Certified (Fittings Licence no. 23087, Tube Licence no. 23151)
  • FM and VdS approved for sizes 22-108mm with EPDM for wet systems and FKM O-ring for wet and dry systems
  • 25 Year Warranty for potable water and fuel gas applications
  • 10 Year Warranty for industrial applications subject to MM Kembla written confirmation of product suitability.

10 Years (Industrial Applications)

For industrial applications, subject to MM Kembla confirming in writing that the products are suitable for the application, MM Kembla guarantees that the tube and fittings will be fit for their intended purpose for a period of not less than 10 years. MM Kembla warrants that if any installation using KemPress fittings becomes defective or fails and MM Kembla is notified of the details and is satisfied that the defect or failure was a result of a manufacturing defect and not the result of faulty specification, installation or incompatible environment, MM Kembla will replace or repair the defective goods and make good the installation.

25 Years (Potable Water and Fuel Gas Applications)

An intensive ISO 9001 certified quality control system is applied to all MM Kembla KemPress fittings to ensure they confirm to AS3688 and Australian Watermark certification requirements. MM Kembla warrants that if any installation using KemPress fittings becomes defective or fails and MM Kembla is notified of the details and is satisfied that the defect or failure was a result of a manufacturing defect and not the result of faulty specification, installation or incompatible environment, MM Kembla will replace or repair the defective goods and make good the installation.

KEMPRESS STAINLESS FITTINGS – PRODUCT TABLES

DiameterCodePack Qty
15X95250100
22X9525170
28X9525240
35X9525330
42X9525420
54X9525510
76.1X952565
108X952575

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X95300MTOX9532010X9531010
22X95301MTOX9532110X9531110
28X95302MTOX953225X953125
35X95303MTOX953232X953132
42X95304MTOX953242X953142
54X95305MTOX953252X953152
76.1X95306MTOX953261X953161
108X95307MTOX953271X953171
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X95350MTOX9537010X9536010
22X95351MTOX9537110X9536110
28X95352MTOX953725X953625
35X95353MTOX953732X953632
42X95354MTOX953742X953642
54X95355MTOX953752X953652
76.1X95356MTOX953761X953661
108X95357MTOX953771X953671
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X9550010X9552010X9551010
22X9550110X9552110X9551110
28X955025X955225X955125
35X955032X955232X955132
42X955042X955242X955142
54X955052X955252X955152
76.1X955061X955261X955161
108X955071X955271X955171
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X9545010X9547010X9546010
22X9545110X9547110X9546110
28X954525X954725X954625
35X954532X954732X954632
42X954542X954742X954642
54X954552X954752X954652
76.1X954561X954761X954661
108X954571X954771X954671
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X95600MTOX9562010X9561010
22 x 3/4X95601MTOX9562110X9561110
28 x 1X95602MTOX956225X956125
35 x 1 1/4X95603MTOX956232X956132
42 x 1 1/2X95604MTOX956242X956142
54 x 2X95605MTOX956252X956152
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X95550MTOX9557010X9556010
22 x 3/4X95551MTOX9557110X9556110
28 x 1X95552MTOX955725X955625
35 x 1 1/4X95553MTOX955732X955632
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X95700MTOX9572010X9571010
22X95701MTOX9572110X9571110
28X95702MTOX957225X957125
35X95703MTOX957232X957132
42X95704MTOX957242X957142
54X95705MTOX957252X957152
76.1X95706MTOX957261X957161
108X95707MTOX957271X957171
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X95650MTOX9567010X9566010
22X95651MTOX9567110X9566110
28X95652MTOX956725X956625
35X95653MTOX956732X956632
42X95654MTOX956742X956642
54X95655MTOX956752X956652
76.1X95656MTOX956761X956661
108X95657MTOX956771X956671
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
22 x 15X95400MTOX9542810X9541410
28 x 15X95401MTOX954295X954155
28 x 22X95402MTOX954305X954165
35 x 22X95403MTOX954312X954172
35 x 28X95404MTOX954322X954182
42 x 22X95405MTOX954332X954192
42 x 28X95406MTOX954342X954202
42 x 35X95407MTOX954352X954212
54 x 28X95408MTOX954362X954222
54 x 35X95409MTOX954372X954232
54 x 42X95410MTOX954382X954242
76 x 54X95411MTOX954392X954252
108 x 54X95412MTOX954402X954262
108 x 76X95413MTOX954412X954272
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X96850MTOX9687010X9686010
22X96851MTOX9687110X9686110
28X96852MTOX968725X968625
35X96853MTOX968732X968632
42X96854MTOX968742X968642
54X96855MTOX968752X968652
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X96250MTOX9627010X9626010
22X96251MTOX9627110X9626110
28X96252MTOX962725X962625
35X96253MTOX962732X962632
42X96254MTOX962742X962642
54X96255MTOX962752X962652
76.1X96256MTOX962761X962661
108X96257MTOX962771X962671
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

Tee Reducing (End x Branch x End)
DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
22 x 15 x 22X96300MTOX9640010X9635010
28 x 15 x 28X96301MTOX964015X963515
28 x 22 x 28X96302MTOX964025X963525
35 x 22 x 35X96304MTOX964042X963542
35 x 28 x 35X96305MTOX964052X963552
42 x 22 x 42X96306MTOX964062X963562
42 x 28 x 42X96307MTOX964072X963572
42 x 35 x 42X96308MTOX964082X963582
54 x 22 x 54X96309MTOX964092X963592
54 x 28 x 54X96310MTOX964102X963602
53 x 35 x 54X96311MTOX964112X963612
54 x 42 x 54X96312MTOX964122X963622
76 x 28 x 76X96314MTOX964141X963641
76 x 54 x 76X96317MTOX964171X963671
108 x 54 x 108X96322MTOX964221X963721
108 x 76 x 108X96323MTOX964231X963731
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X96450MTOX9655010X9650010
22 x 1/2X96451MTOX965515X965015
22 x 3/4X96452MTOX9655210X9650210
28 x 1/2X96453MTOX965535X965035
35 x 1/2X96456MTOX965562X965062
35 x 3/4X96457MTOX965572X965072
42 x 1/2X96459MTOX965592X965092
42 x 3/4X96460MTOX965602X965102
54 x 1/2X96462MTOX965622X965122
54 x 3/4X96463MTOX965632X965132
54 x 2X96464MTOX965642X965142
76.1 x 3/4X96465MTOX965651X965151
76.1 x 2X96466MTOX965661X965161
108 x 3/4X96467MTOX965671X965171
108 x 2X96468MTOX965681X965181
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack Qty
22X97001MTO
28X97002MTO
35X97003MTO
42X97004MTO
54X97005MTO
76.1X97006MTO
108X97007MTO
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X96050MTOX9607610X9606310
15 x 3/4X96051MTOX9607710X9606410
22 x 1/2X96052MTOX9607810X9606510
22 x 3/4X96053MTOX9607910X9606610
22 x 1X96054MTOX9608010X9606710
28 x 3/4X96055MTOX960815X960685
28 x 1X96056MTOX960825X960695
35 x 1 1/4X96058MTOX960842X960712
42 x 1 1/2X96059MTOX960852X960722
54 x 2X96060MTOX960862X960732
76.1 x 2 1/2X96061MTOX960871X960741
108 x 4X96062MTOX960881X960751
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X96150MTOX9617010X9616010
15 x 3/4X96151MTOX9617110X9616110
22 x 1/2X96152MTOX9617210X9616210
22 x 3/4X96153MTOX9617310X9616310
28 x 3/4X96155MTOX961755X961655
28 x 1X96156MTOX961765X961665
35 x 1 1/4X96157MTOX961772X961672
42 x 1 1/2X96158MTOX961782X961682
54 x 2X96159MTOX961792X961692
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X96700MTOX967205X967105
15 x 3/4X96701MTOX967215X967115
22 x 3/4X96702MTOX967225X967125
28 x 1X96705MTOX967255X967155
35 x 1 1/4X96706MTOX967262X967162
42 x 1 1/2X96707MTOX967272X967172
54 x 2X96708MTOX967282X967182
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X96750MTOX967705X967605
15 x 3/4X96751MTOX967715X967615
22 x 3/4X96752MTOX967725X967625
28 X 1X96753MTOX967735X967635
35 x 1 1/4X96754MTOX967742X967642
42 x 1 1/2X96755MTOX967752X967652
54 x 2X96756MTOX967762X967662
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15 x 1/2X96600MTOX9662010X9661010
15 x 3/4X96601MTOX9662110X9661110
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X977601X977501X977401
22X977611X977511X977411
28X977621X977521X977421
35X977631X977531X977431
42X977641X977541X977441
54X977651X977551X977451
76X977661X977561X977461
108X977671X977571X977471

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
15X977601X977501X977401
22X977611X977511X977411
28X977621X977521X977421
35X977631X977531X977431
42X977641X977541X977441
54X977651X977551X977451
76X977661X977561X977461
108X977671X977571X977471

DiameterWater CodePack QtyGas CodePack QtyIndustry CodePack Qty
18mm for 22 x 3/4X966501UniversalUniversalUniversalUniversal
25mm for 15 x 1/2X966511UniversalUniversalUniversalUniversal
MTO = Made to Order only (lead times apply) – for Potable Water applications use Industry Fitting

BOOK A PRODUCT
DEMONSTRATION OR TRAINING

FIND A STOCKIST

CALL 1800 804 631