860 results for stainless steel pipe and fittings found in 0.000 seconds

.com we have designed our standard stainless steel parts program to appeal to your ... from catalog ­ quick shipping 150 psi stainless steel fittings elbows tees cross street ... couplings half couplings hose nipples stainless steel valves 2-piece 3-piece ball ... check valves please call for other stainless steel valve types and sizes stainless ... steel nipples schedule 40 welded pipe nipples please note your requirement ... for seamless and/or schedule 80 and schedule 160 nipples hi-pressure ... stainless steel fittings 4000 series close nipples hex nipples ... elbows street elbows tees cross pipe caps pipe plug union ball joint socket ... welds 150 psi threaded ss fittings dimensions to ansi 16.3 pressure to ... fill ptfe reinforced seat ptfe seal and packing comes with latch lock handle ...

inc 4388 broadway depew ny 14043 stainless steel hi-pressure fittings close nipple ... 36 37 37 38 38 run tee branch tee cross pipe cap pipe plug union ball joint socket ... elbow npt socket weld female elbow npt pipe to tube socket weld tube to tube socket ... 43 44 44 44 bfo buyfittingsonline.com 2 stainless steel tube fittings union union elbow ...

ball butterfly gate globe check stainless flanged plug float solenoid and boiler ... valves hydrants floats petcocks and needle valves fittings pipe and tubing ... 43 malleable cast iron chrome plated steel stainless forged steel brass and copper ... fittings flanges nipples tubing and pipe gaskets packing dresser couplings and ... clamps culvert gas pipe and fittings fernco couplings cast iron specialties ... strainers tubing fittings hangers and fasteners page 125 pipe and tubing ... clamps rod anchors nuts angle iron and strut fi re protection page 141 valves ... sprinklers fire stops grooved fittings hose and nozzles plu m bi ng page 155 ... brass powers valves symmons moen and delta faucets and parts commercial ...

fittings and pipe 304 stainless steel nipples 1/8 size fig no price cl 6239 1 ... 6451 6455 6459 17564 price 2 price 316 stainless steel nipples 1/8 size cl sh 1 1/2 2 2 ... 36401 36402 36403 2 price victaulic fittings call for pricing when ordering ... stainless steel nipples or fittings don t forget to order our special ... teflon tape for stainless steel fig no 61360 for additional ...

f xk-120 xk-140 and xk-150 performance exhaust g g a ... competition system for the xk140 and xk1 50 includes mufflers and 2 tail ... pipes stainless steel mufflers and headers complete manual transmission ... only the xk-140 and xk-1 headers give you both increased ... power and great looks 50 the two-piece design ... to the made-to-fit straight-through stainless mufflers and large bore tailpipes xk- ... 140 and xk-1 performance exhaust 50 07-501 1 xk ... -120 stainless headers and link pipes 07-5007 h mkii e-type headers ... looking for a little extra performance and great looks for your mkii why not try a ... set of stainless steel headers these headers offer the ... following advantages they look great and you will never have to deal with flaky ...

2 3 6-8 6-8 1 13 13 4 e-type series i and ii coupe and roadster individual mild ... steel components 1 2 3 4 5 6 7 8 headpipe ... assembly one-piece unit 07-1077 rear pipe left 07-1070 rear pipe right 07- ... concours resonators 3.8 liter mild steel exhaust system 07-0605 10 4.2 liter ... series i mild steel exhaust system 07-0606 11 series ii ... mild steel exhaust system 07-0615 mounts and ... the u.s exclusively for xks unlimited and are of superior quality compared to ... units they are triple-chrome plated and carefully packaged 8 exhaust e-type ... series i and ii 2+2 2 3 9 1 4 5 9 6 7 15 13 12 2 3 ... 11 10 6 7 11 10 4 5 individual mild steel components 1 4 5 6 7 200 exhaust ... systems see stainless steel mounts and seals not included with systems 8 9 ...

pipe and tubing d10.4-86r recommended practices ... for welding austenitic chromium-nickel stainless steel piping and tubing description ... .12m/d10.12:2000 guide for welding mild steel pipe contains recommended practices for ... piping systems of sizes dn 200 nps 8 and under and wall thickness of 13mm 0.5 in ... and under for low-pressure heating air ... conditioning refrigeration and water supply as well as some gas and ... chemical systems covers carbon steels such as astm a 53 a 106 a 135 a 179 a ... 524 a 587 and api-5l grades a25 a and b and x42 joined using oxyacetylene shielded ... arc gas tungsten arc gas metal arc and flux cored arc welding explains ... preheating joint preparation alignment and positioning fittings and root and hot ...

tungsten arc welding of titanium piping and tubing 23 specification for underwater ... gouging see cutting health see safety and health inspection b1.10:1999 b1.11:2000 ... practices for the design manufacture and inspection of critical brazed ... levels on inside of austenitic stainless steel tube 23 specification for ... for hot gas hot gas extrusion and heated tool butt thermoplastic welds ... pocket handbook for visual inspection and weld discontinuities causes and ... 1 structural welding code s fabrication and welding requirements 29 the practical ... visual inspection of pressure vessels and pressure piping 23 standard for aws ... 15 welding metallurgy carbon and alloy steels volume 1 fundamentals 6 ... nickel-based alloys 15 oxyfuel welding and cutting c4.1-77 set criteria for ...

ˇ cnc mandrel bent for perfect fit and smooth maximum flow ˇ hand polished t- ... 304 stainless steel construction for a lifetime of trouble- ... free driving and great looks mid america motorworks is ... proud to present our c6 stainless steel quad cruiser exhaust specially crafted ... expectations our computer designed pipes reduce back pressure that can rob your ... so you can enjoy your conversations and music when you hit the gas watch the ... awesome growl coming from your pride and joy arrives complete with stainless ... steel clamps and everything else you need for a fast and ... easy installation add a crossover pipe to reduce back pressure and maximize ... 1,299.99 $899.99 b 05-09 crossover pipe 696-001 reg $449.99 $349.99 05-09 ...

/handling charge unleash great sound and power when you want it plus whisper ... cruising speeds ˇ hand polished t-304 stainless steel construction for a lifetime of ... trouble-free driving and great looks additional features ˇ ... ˇ cnc mandrel bent for perfect fit and smooth maximum flow ˇ now order the ... quad tips our mid america motorworks c5 stainless steel exhaust is crafted to exceed your ... expectations computer designed 2.5 pipes reduce power-robbing back pressure ... while still allowing quiet cruising and easy conversations but hit the gas and ... more aggressive at idle fits stock lead pipes or our high performance crossover pipe ... with our high performance crossover pipe this precision made crossover pipe ... boosts power promotes faster revving and delivers a smoother exhaust growl ...

are designed for up-flow filtration and top-down backwashing for maximum ... center flange securely fastens tank top and bottom and allows easy access to all ... include pressure gauge air-relief valve and 11/2 drain plug in-line filters/ ... filtration d.e filters de48 the de48 and de72 models include a 11/2 6-position ... control valve and are shipped ground de4 is a 2 4- ... position multiport valve and must be ordered when purchasing de96 ... and de120 both of which ship motor freight ... provides balanced flow during filtering and backwashing an internal de12 automatic ... -piece tank covers with rotary valves and pressure gauges drain plugs stainless ... steel hardware and two 8 long 11/2 inlet/outlet hoses ... to 100 gallons filters 300 gph and includes a bag of diatomaceous earth ...

pump the pro-drainer has a 304 stainless steel case and an automatic float ... protection with automatic reset and a double mechanical shaft seal 11/4 ... fnpt outlet and a 3/8 diameter strainer 115v/60 hz ... or frp resin including the motor shaft and the screws model 4tm is 115v/60 hz ... models have built-in thermal protectors and 19 power cord pumps fit inside a 10 ... pipe pumps are 16 high with 2 fpt outlets ... discharge pumps are built for long life and high performance use only 4.8 amps but ... rubber impeller aluminum motor frame and synthetic rubber casing suction cover ... and wear ring the plb2750 has a galvanized ... steel housing and a cast iron impeller outlets are 2 mpt ... both are thermally protected 115v/60 hz and have 32 power cords two-year ... will lose their prime pumping will stop and the shaft seal will probably burn out ...

2 3 6-8 6-8 1 13 13 4 e-type series i and ii coupe and roadster individual mild ... steel components 1 2 3 4 5 6 7 8 headpipe ... assembly one-piece unit 07-1077 rear pipe left 07-1070 rear pipe right 07- ... concours resonators 3.8 liter mild steel exhaust system 07-0605 10 4.2 liter ... series i mild steel exhaust system 07-0606 11 series ii ... mild steel exhaust system 07-0615 mounts and ... the u.s exclusively for xks unlimited and are of superior quality compared to ... units they are triple-chrome plated and carefully packaged 8 exhaust e-type ... series i and ii 2+2 2 3 9 1 4 5 9 6 7 15 13 12 2 3 ... 11 10 6 7 11 10 4 5 individual mild steel components 1 4 5 6 7 200 exhaust ... systems see stainless steel mounts and seals not included with systems 8 9 ...

6 3 11 5 7a nls 1 2 12 individual mild steel components e-type series iii v-12 ... mounts and seals not included with systems 11 12 ... ja-ebc9388 downpipe to intermediate pipe seals 2 req d c33487 upper muffler ... downpipe left side 07-2296 3 balance pipe 07-2299 4 intermediate pipe right ... side 07-2298 5 intermediate pipe left side 07-2297 6 muffler same ... type nls use ss note c41259ss is stainless steel equivalent 8 rear fan tail four ... -outlet type mild steel 07-2303 9 rear fan tail four-outlet ... stainless steel 07-2303ss 10 rear fan tail two- ... outlet stainless steel 07-2905ss note four-outlet systems ... were fitted to 2+2 to vin 1s.74661 and roadster to 1s.22045 two-outlet systems ... thereafter exhaust systems 19 mild steel exhaust system four-outlet type 07- ...

how to order hose fittings how to order accurate processing and ... as described in this catalog inquiries and orders should be directed to your ... /867-2629 www.aeroquip.com part numbers and dash sizes dash size designates the ... immediately follows the part number and is separated from it with a dash ... fittings with fc or fj part numbers will ... indicate the size of the connecting end and the second two numerals indicate the ... size of the hose end all other fittings are followed by a dash number which is ... the first one generally indicates the pipe or port size and the second indicates ... the terminal ends of our hose fittings to the appropriate requirements ... the performance ratings of these hose fittings meet the sae requirements it is ... many hose assembly components hose and fittings are easily assembled in the field ...

how to order hose fittings global crimp sockets nipples and ... fittings global part numbering system part ... has a 45° elbow configuration dashes and unnecessary zeros are not used e.g 1/4 ... is designated by 10 not ­10 crimp fittings fittings are ordered as complete ... ­ 20 20 s 1s a 8 basic part number pipe or port size mating hose size material ... global crimp nipples sockets and fittings standard material is zinc plated carbon ... steel items so designated in catalog ... available in stainless steel crimp socket global crimp nipples/ ... fittings complete nipple part number 1s a 8 fj a ... collapses for 11/4 braided hose fittings p 1 wire braid hose socket with no hex ... male heavy duty mj male jic mp male pipe fh flange code 62 mr male ors fj ...

pkg exhaust accessories universal x-pipe assemblies these universal weld-in x- ... pipe assemblies help balance exhaust ... pressure and mellow the exhaust tone they are ... or any performance machine aluminized steel tubing provides long life and good ... looks universal 2-1/2 x-pipe assembly 6703 universal 3 x-pipe ... assembly 6704 universal 3 x-pipe assembly #6704 dodge viper heat shields ... heat shields deflect heat down and out of the engine compartment keeping ... edelbrock logo constructed out of 409 stainless steel and ceramic coated the heat ... shields cover the top and the side of the header and should work ... heat shields #6700 these direct plug in and go o2 sensor extension assemblies can ... pack terminals protective sleeve and connectors on each end gm ls1 series ...

65073 header-back exhaust system #5774 and engine mount kit #6701 this conversion ... -style fit high quality materials and edelbrock workmanship for unrivaled ... results and classic muscle car sound retro-fit kit ... 65073 header-back exhaust system #5774 and engine mount kit #6701 engine mount kit ... conversion headers are made from 409 stainless steel tubing with 3/8 thick port and ... than a leakage-prone 3-bolt collector and gasket and this stepped header design ... stepped up 1-7/8 for maximum flow and outstanding power they fit 1968-72 gm a ... buick special gs-350 gs-455 gto le mans and tempest these headers are designed to ... engine mount kit #6701 these headers and engine mounts are part of our complete ... use the straight slash-cut polished 304 stainless steel chrome tip that is included in ...

steel fittings flareless 7000 series ermetoŽ refer to ... on page 1 note h is dimension of fittings assembled to hand tight condition note ... -7/8­12 2-1/2­12 .49 .61 .49 .64 forged fittings and adapters ermetoŽ fittings 7000 ... rating chart connection type ermetoŽ fittings 1/8 3/16 5000 5000 1/4 5000 4500 ... straight thread o-ring 5000 with male pipe 5000 with female pipe 5000 ˇ typical ... application hydraulic instrumentation and chemical processing systems highly ... up to 5,000 psi depending on tube and fitting size see steel fittings ... pressures has been used at 800°f and 1000 psi to 4000 psi depending on tube ... size stainless steel has been used at +1000°f and 2000 psi ... ˇ material carbon steel aisi/sae 12l14 plating weathercoteŽ ...

tubing selection on page 1 ermetoŽ fittings 7000 series are especially designed for ... high pressure severe vibration and extreme temperature no special tools ... cut tube square preset sleeve on tubing and assemble steel fittings ermetoŽ design ... making a tight joint between fitting and tube 3 in assembling the preset sleeve ... and tube into the fitting body the nut ... is bowed slightly at the midsection and acts as a spring this spring action of ... a constant tension between the body and the nut and thus prevents the nut from ... attached to the tube disassembly and reassembly of the fitting can be made ... shoulder cutting edge 7000 series fittings specifically designed to meet all sae ... standards for hydraulic flareless tube fittings available in a complete range of ...

exhaust systems zodiac s low noise stainless steel muffler by supertrapp these ... on any type or model fits 1 3/4 head pipes and includes a stainless steel clamp ... and hardware exclusively available from ... l/h 03 paul yaffe s road legend pipes by supertrapp designed by high-profile ... custom bike designer paul yaffe and made by supertrapp these 2 diameter ... designer drag pipes feature triple chrome plating and are ... finish these straight-through drag pipes come with custom designed 3 piece spot ... heat shields two on the rear pipe and one on the front pipe with decorative ... cut outs and feature super looking turn down tips ... chrome or black fits most softails and some rigid frames 233109 chrome 733022 ... black paul yaffe s phantom pipe by supertrapp the phantom pipe is the ...

cdef 03 universal replacement silencers stainless steel universal replacement silencers ... fits 1 3/4 front pipes with either brushed satin finish or ... are available to fit 1 3/4 or 2 front pipes and can be equipped with the end cap ... bike muffler bodies are 3 in diameter and are 19 long they also feature the ... universal race muffler satin finished stainless steel tunable and re-packable 4 ... 1/2 diameter comes with 8 tuning discs and two clamps one for mounting the muffler ... to the frame and one to secure the muffler to the ... disc series for replacement parts and end caps note except where mentioned ... all exhaust systems mufflers drag-pipes etc shown in our catalog are for closed ...

fittings and pipe 304 stainless steel nipples 1/8 size fig no price cl 6239 1 ... 6451 6455 6459 17564 price 2 price 316 stainless steel nipples 1/8 size cl sh 1 1/2 2 2 ... 36401 36402 36403 2 price victaulic fittings call for pricing when ordering ... stainless steel nipples or fittings don t forget to order our special ... teflon tape for stainless steel fig no 61360 for additional ...

fittings and pipe flexible connectors threaded stainless ... steel hose and braid sweat duff co brass hose and ... match of hose type wall thickness and braid design to minimize forces and ... are factory engineered manufactured and tested to effectively minimize the ... stress of pump and compression housings and to isolate vibrations transmitted by ... mechanical equipment and today duff can help you comply with ... noise level requirements by reducing pipe vibration throughout a structure duff ... life lower overall operating costs and years of trouble-free service size 1/2 ... phosphorous bronze for high strength and stability under continuous flexing and ... vibraation and for resistance to the corrosive action ... of freon and methyl chloride the flexible tube is ...

your 1974-82 Corvette with our polished Stainless Steel Exhaust Tips. Allowing you to ... installation requires sliding units on and clamping in place with attaching ... Newly designed for easier installation and a better fit, Twin-Tip Performance ... with minor modifications.) 2.5" inlet. Stainless Steel Mufflers For Your 1974-82 ... Upgrade to our Polished Stainless Steel Turbo Mufflers and enjoy increased air ... flow, heightened sound and an ultra-polished appearance. Mufflers ... are manufactured of T-304 stainless steel, inside and out, to assure lasting ... durability. Includes FREE inlet pipes, extensions and clamps, all polished to ... substantial increases in horsepower and torque. Their stock design prevents ... in place. 1974-82 has adjustable necks and 2.5 inlets. L-48 Corvettes may have ...

Toll Free: 800.500.1500 A Get Quality And Price All In One Hooker has created ... Made from 2.5" mandrel bent aluminized steel tubing with four 3.5" polished ... stainless steel tips. Hangers, clamps, and FREE hardware included for a complete ... -bent tubing, 3/8" laser-cut flanges and a highly polished ceramic finish, it's ... on the market! Metalreinforced gaskets and FREE hardware included; sold in pairs. ... -Coated Headers, Random Technology X-Pipe and Hi-Flow Catalytic Converters. ... Headers are Jet- Hot coated inside and out. X-Pipe is made of 100% stainless ... steel. Hiflow design 2.75" Catalytic ... Converters (pr) meet Federal EPA and California ARB requirements. Random ... , Ceramic Headers, Random Technology X-Pipe Hi-Flow Cats 622-917 $1,899.99 Add 16 ...

shown c4387c 33 hose heater core to pipe on rh side of block 09-8104 34 return ... pipe stainless rh side of block 09-13232 35 hose ... return pipe to elbow on water pump 09-11730 late ... below 36 elbow hose manifold to heater pipe on dash bd215-2 37 hose manifold to ... pipe on dash s models only from 831140 ots ... 837993 fhc 835961 dhc 09-8104 38 stainless steel pipe set includes c14207 c14324 ... c14206 and c13232 09-1500 39 hose feed pipe to ... for valve c9928 43 elbow hose feed pipe to heater core bd215-2 44 elbow hose ... heater core to rear pipe bd215-2 45 hose rear pipe to front ... pipe on engine block 09-11730 46 hose front ... return pipe to elbow on pump 09-11730 47 knob on ... hose 09-12424 bottom hose radiator to pipe 09-7545 by-pass hose 09-7548 hose ...

43 42 37 44 45 18 2 1-3 e-type series i and ii heater components 27 28 29 30 31 32 ... air intake in bonnet series i fhc and ots bd19730 air intake in bonnet ... heater box internal seal kit series i and ii 09-8005 heater return pipe series ... i and ii c24311 hose series i pipe to manifold fitting 09-25124 hose ... series i between return pipes 09-4399 hose series i return pipe to ... -8003 defroster kit 4.2 3 elbows 2 y pipes hose 09-8004 defroster y 4.2 only ... rear all 4.2 liter c22496 manifold and pump fitting c17421 washer for fitting ... mount block heater valve c17821 221 1 stainless steel pipe set 3.8 09-8000 2 ... stainless steel pipe set 4.2 not ser ii 2+2 09-8000-1 3 ... stainless steel pipe set series ii 2+2 09-8000-2 4 washers ...

heat shield brackets muffler shield and downpipe shield exhaust heat shields 4. ... pump fuel pump rebuild kit banjo bolt fittings l bracket pump mounts plastic fuel ... line fuel pump diaphragm and check valve fuel tanks components six- ... attaching brackets muffler shield and downpipe shield exhaust heat shields 4. ... attaching brackets muffler shield and downpipe shield exhaust heat shields v- ... cap sending unit fuel line assembly and fuel filter element seal fuel pump ... v-12 e74 e75-e76 pump insulation foam and fuel pump holder bracket fuel tank ... forward heat shield intermediate shield and muffler heat shield exhaust system ... muffler assembly concours resonator stainless steel resonators and mild steel exhaust ... flex line fuel filter element assembly pipe clamp and fuel non-return valve engine ...

805-544-7864 ˇ fax 805-544-1664 head pipes or down pipes muffler assembly rear ... pipes mild steel system stainless steel resonators f itting kit e-type swb ... includes downpipe seals downpipe nuts and washers stainless steel clamps and ... muffler and resonator rubber mounts kit also ... includes all nuts bolts and washers required to bolt the system ... together and to the car fitting kits do not include ... number 07-1459 exhaust system series i and ii coupe and roadster plate 2 of 2 item ... co-30821ss co-30822ss 07-0605 07-0606 stainlesssteel stainlesssteel stainlesssteel ... stainlesssteel stainlesssteel stainlesssteel 3.8liter 4.2literseriesi notes/qty ... stainless steel resonators exhaust mild steel exhaust systems mildsteelexhaustsystem ...

Selection Guide Parkers instrument tube fittings have been designed to work in a wide ... . Although Parkers instrument tube fittings have been engineered and manufactured ... assist the designer to properly select and order quality tubing. Proper tube ... selection and installation, we believe, are key ... . Table 1 lists common materials and their associated general application. ... Table 1 also lists the maximum and minimum operating temperature for the ... . In addition, Parker instrument fittings are designed to work on like materials ... . Stainless steel fittings should be used only with stainless ... steel tubing, aluminum fittings with aluminum tubing, etc. The practice ... . The only exception is brass fittings with copper tubing. Dissimilar ... have different levels of hardness, and can adversely affect the fittings ...

Parker Hannifin Corporation Tube Fittings Division Columbus, Ohio 20 Loctite ... specifically for metal tapered pipe thread fittings. PST 565 cures rapidly ... controlled lubricity prevents galling and it protects mated thread areas from ... rust and corrosion. Application: Stainless steel tapered pipe threads Sizes ... Sealant 545 Designed for both hydraulic and pneumatic systems, 545 contains no ... , foul valves, or clog fine filters and screens. Applications: Steel and brass ... tapered pipe threads Sizes available Part No. .5 ml ... threadlocker is ideal for all nut and bolt applications. It eliminates the ... need for stocking expensive lock nuts and washers. Its other advantages include: ... locking and sealing while preventing parts from ... , protecting threads from corrosion, and easy disassembly with hand tools. ...

company s dynapack chassis dynamometer and dynamic testing systems dyno and are ... robotic plasma cutters robotic welders and cnc mills lathes and benders ensure ... consistent quality control and perfect fitment with every product dc ... on the market extensive research and development goes into each exhaust ... design to ensure the best performance and sound for your vehicle dc sports ... utilize the factory mounting locations and include complete hardware for ease of ... systems are manufactured from 304-stainless steel piping and feature a polished tip ... 4 exhaust tips except civic si and a twin canister system tcs for select ... that offers unmatched power and meets exhaust noise restriction ... dc sports 4-into-1 3-into-1 and 4-2-1 header systems are dyno tested to ...

designed to look good fit right and perform properly on your twin cam- ... mounting brackets have been polished and chrome-plated to rigid harley-davidson ... standards and the gauge offers premium reliability ... the kit includes all necessary hardware and mounting brackets for quick and clean ... dynaŽ models 00-later softailŽ models and 99-later flht and flhr models does not ... incorporates corrosion-resistant stainless steel bezel and includes harley- ... instruments complete with chrome-plated steel fittings and o-rings for crankcase ... 75012-82d fits 82 84 shovelhead and 84-later evolutionŽ 1340-equipped ... chromeplated cap completes the styling and provides an easy grip for removal 62962 ... flt 71 85 fx except fxst 82 83 fxr and 70 78 xlch models 62666-87ta $29.95 ...

fits standard laboratory faucet pipe outlet or gooseneck outlet fits ... protection against both back-siphonage and backflow all brass construction size 1/ ... vent 8675 for use on hot or cold water and can be watts nf8 especially made used ... continuous pressure for labofor wall and yard hydrants ratory/dairy equipment ... permits manual draining for sterilizers and low hazard applications freezing ... system pressure female union inlet and outlet fig no price connections may be ... prevent backflow of carbon dioxide gas and carbonated water into the water supply ... system stainless steel body and internal parts comply with fda food ... replaceable plastic seat bronze body and accessory construction easy inline ... maintenance serves as both antisiphon and check valve ball size fig price no ...

Selection Guide Parkers instrument tube fittings have been designed to work in a wide ... . Although Parkers Instrument tube fittings have been engineered and manufactured ... assist the designer to properly select and order quality tubing. Proper tube ... selection and installation, we believe, are key ... . Table 1 lists common materials and their associated general application. ... Table 1 also lists the maximum and minimum operating temperature for the ... . In addition, Parker instrument fittings are designed to work on like materials ... . Stainless steel fittings should be used only with stainless ... steel tubing, aluminum fittings with aluminum tubing, etc. The practice ... . The only exception is brass fittings with copper tubing. Dissimilar ... have different levels of hardness, and can adversely affect the fittings ...