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Strength and Durability
• High strength to weight ratio
• Inherent corrosion resistance• Long life• Minimal maintenance requirement
• Excellent impact resistance• Earthquake resistance
Safety, Aesthetics and Hygiene
• High temperature and fire resistance
• Excellent performance even at cryogenic temperatures
• Environment friendly• Aesthetically pleasing• High level of clean-ability• Hygienic and suitable for water and food products
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HIGH TEMPERATURE AND FIRE RESISTANCE
• Maintains strength at high temperature
• Minimum structural deformation
• Retains half of room temperature strength even at 500. Celsius.
• Does not require fire proof paint
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Material Test Time Avg. Temp. Max. Temp. ResultFiberglass 6 minutes 380F 430F Total FailureAluminium 12 minutes 480F 510F Total FailureGalvanized 120 minutes 1025F 1030F Major deformation and
loss of zincStainless 180 minutes 1030F 1050F Very moderate deformation
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HIGH TEMPERATURE AND FIRE RESISTANCE
*source: www.nickelinstitute.org
• Stainless Steel grades 304 and 316 belongto the class of austenitic steels
• The figure to the left illustrates the relativeperformance of austenitic steels ascompared to martensitic, ferritic , andcarbon steels
• It can be clearly seen that austenitic gradeshave relatively superior performance
EFFECT OF WATER VELOCITY ON CORROSION RATE
0
0.005
0.01
0.015
0.02
0.025
0.03
0 10 20 30 40
Corr
osio
n Ra
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m/y)
Flow Rate (m/sec)
Corrosion rateStainless SteelCorrosion RateCopperCorrosion rateMild Steel
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*Source: www.nickelinstitute.org
• The corrosion rate of materials increasesas the velocity of water the carryincreases.
• This increase in corrosion rate isparticularly steep in the case of mild steeland copper
• The increase is only marginal in the caseof Stainless Steel
• The use of higher water velocities canhelp to minimize the growth of biofilm.
• This makes Stainless Steel especiallysuitable for water applications.
CORROSION RESISTANCE
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Extremely SevereSevereModerateMildNegligible
• Presence of chlorides in soil contributes tocorrosion of pipes.
• Stainless steels are generally quite resistant tocorrosion due to chlorides.
• SS 304 grade is suitable for low to moderatechloride levels (<200 ppm).
• SS 316 grade is suitable for severe and extremelysevere chloride levels (<1000 ppm) like coastalareas.
*Source: www.corrosion-doctors.org
Chromium in Stainless Steelreacts with oxygen to form aprotective passive layerwhich is self healing ifdamaged.
Temperature 80. C 70. C 25. CLife 40 years 80 years 100 years
Usage Hot Water Hot Water Normal Water
LONG LIFE
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Expected Life of Stainless Steel Pipes Under Various Water Temperature
*Source: Japan Stainless Steel Association
MaterialConcentration of
dissolved metallic ionsMaximum in each
week (mg/l)
Maximum corrosion rate for
the five weeks (g/m-hr)
304 grade SS 0.4 0.0003Copper 3.0 0.003
GI 43 0.0231*Source: www.nickelinstitute.org
• Stainless Steel has along a life evenwhen used to carry hot water.
• It is much more resistant to corrosionwhen compared to copper and GI.
• This excellent corrosion andtemperature resistance of stainless steelmake it ideal for water applications.
• Stainless Steel plumbing systems havean expected life of 50-100 years whichis similar to the life of buildings.
Comparison of Corrosion Rates in Tap Water
ENVIRONMENT FRIENDLY
Pumping
• SS pipes and fittings have smooth inner walls which reduces the friction on the fluid.• As a result, less power is required to pump the fluid, thus saving both energy and cost
Recyclable• Unlike cement lined and non-metallic pipe, Stainless Steels are easily recycled and
their alloy content is highly valued.
Leaching• The leaching of metallic elements into drinking water while storage and distribution is
at level consistently below those allowed by the regulations.
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• Only Stainless Steel & Copper are recognized as Food Grade for potable drinking waterFood Grade
• Does not change the taste of the water and has clear advantage over Copper & PlasticsTaste of Drinking Water
• SS Surfaces are smooth, hard and homogeneous and it is difficult for bacteria & fungi to make seat for them on itAnti Bacterial & Anti Fungal
• As the surface roughness is very low (only 0.15 to 0.25 micro-metre), the deposits and film are very low and it does not require any chemical cleansersNo Internal Cleaning Required
• Not easily damaged by use in public buildingsStrong Material
• SS Pipes can have as long a life as the building in which they are installedLong life
STAINLESS STEEL IN WATER APPLICATIONS
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Taipei 101, Taiwan Petronas Towers, Malaysia Gateway Arch, St. Louis
Stainless Steel type 304 has been used in several high rise buildings for structure and water applications
STAINLESS STEEL IN BUILDINGS
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STAINLESS STEEL IN WATER DISTRIBUTION
Lightweight bridges made of 304 and316 grade SS are used to carry potablewater and pedestrians across riverspans up to 632 m in Japan
120-inch diameter SS WaterPipe, Greater VancouverRegional Water District,British Columbia, Canada
Existing waterpipes beingreplaced with SSpipes in Italy
First SS raw waterpipe in India forMettur Dam onCauvery riverin Tamil Nadu
• INTERNATIONAL BUILDING CODE(IBC), UNIVERSAL PLUMBING CODE(UPC) AND INTERNATIONAL PLUMBING CODE (IPC) APPROVAL FOR THE USE AND ACCEPTANCE OF STAINLESS STEEL IN NORTH AMERICA.
• STAINLESS STEEL IS APPROVED AS AN ACCEPTABLE MATERIAL FOR THE HANDLING OF DRINKING WATERS, PER ANSI-NSF STANDARD 61.
• DIN 50930-6 DEALS WITH THE HYGIENIC PROPERTIES OF METALLIC MATERIALS IN CONTACT WITH "DRINKING" WATER "IN RELATION TO" THE NEW EUROPEAN DRINKING WATER DIRECTIVE: IT "ALLOWS" STAINLESS STEEL ACCORDING TO DVGW W 534 AND W 541 TO BE USED WITHOUT ANY RESTRICTIONS.
• NATIONAL APPROVAL IN AUSTRALIA, NEW ZEALAND, CHINA, MALAYSIA.
• INDIA – APPROVED J-PRESS STAINLESS PIPES BY CPWD.
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STAINLESS STEEL PIPES WITH PRESS FIT TECHNOLOGY
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We provide a complete range of 304 and 316 gradestainless steel pipes and fittings (including Reducer,Tee, Reducing Tee, Coupling, Slip Coupling, AngleAdapter etc.) with sizes ranging from 15mm to100mm*
*All sizes are of the internal diameter of the product
PRESS FIT TECHNOLOGY AT A GLANCE
The seal ring providesadditional protectionfrom leaks
During pressing theseal ring absorbsadditional energy forpermanent and reliabletightness
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On the contact surface ofthe seal ring the cleanweld seam ensures thesystem's permanenttightness and reducessusceptibility to corrosion.
A pressure of 50 barsmakes yields such animpressive joint that it isimpossible to tell the twolayers apart visually
*Image: Mapress
Stainless Steel Fitting
Stainless Steel Pipe
ADVANTAGES OF PRESS FIT TECHNOLOGY
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Fast, and easy assembly which results in high on-site productivity
Reduces handling, shipping, and installation costs
Rigid engagement of fitting into pipe
High pressure rating
High reliability
DOUBLE CRIMPING DOES IT BETTER• We are dedicated to providing the best quality to our
customers
• Single crimping is good but double crimping is better
• It gives extra strength to the joints on either side of theEPDM ring.
• Air contact with EPDM ring is effectively blocked, therebyreducing the ageing process.
• It also provides effective shield to EPDM ring againstthermal expansion and contraction of pipes & fittings.
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Double Crimping
Single Crimping
OUR PIPES: THEY ARE PICKLED!• For ages we have been protecting our food from going bad by
Pickling. Turns out, you can do the same for metals too!
• Pickling is the removal of any high temperature scale and anyadjacent low chromium layer of metal from the surface ofstainless steel by chemical means.
• Welding creates a chromium depleted layer on the surface ofthe steel underneath the oxide layer, which lowers itscorrosion resistance.
• Pickling restores the chromium layer and hence its corrosionresistance and also removes contaminants such as ferrous andferric oxide particles.
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Welding Joint: Before and After Pickling
ADHERENCE TO BEST QUALITY STANDARDS
Each stainless steel pipe and fitting that you purchasefrom us has gone through rigorous tests to check for:
• Material: A chemical test is performed toguarantee the correct composition of theproduct’s material
• Strength and Manufacturing defects: Hydrotesting is performed to test the product’sstrength and identify leaks (if any)
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Stainless Steel pipes undergoing hydro testing
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CorrosionResistance
Hygiene/FoodGrade
Maintenance Ease OfInstallation
High/LowTempratureApplication
Earthquake/FireResistant
PressureRating/Joint
Strength
Comparison of Materials
GI PPR Composite Copper
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CorrosionResistance
Hygiene/FoodGrade
Maintenance Ease OfInstallation
High/LowTempratureApplication
Earthquake/FireResistant
PressureRating/Joint
Strength
Comparison of Materials
GI PPR Composite Copper Stainless Steel
Stainless Steel is the better material under all the above criteria
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THANKS !ASHOK JINDALJ PRESS STAINLESS PRIVATE LIMITEDREGD. OFFICE : 752, SECTOR 10, PANCHKULACORP. OFFICE : G K II, NEW DELHIMOBILE : +91 8968097755WEB : www.jpressindia.comEMAIL : [email protected]
