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I'd like to get the pro and cons about BUNA-N (Nitrile) and Natural rubber for use as a gasket material on water and air. Albion is recommanding natural black rubber for water (hot & cold) and also for air. Albion also do ot recommand Nitrile for sunlight,ozone and weather... My applications...

Hi there, I'm looking to find information about a Company named "Elliot" who was manufacturing flexible shaft actuator for valves in the late '70s.... Or If you can redirect me on a cie who manufacture that kind of product it will be appreciate. The actuator I'm looking for is a kind of...

CRG, I'm asking for a co-worker and he wants this to calculate the force to move a piece of equipment made of steel piled on top of a similar piece of equipement stored underwater. We understand that the steel/steel coefficient of friction will be different underwater because of the water film...

Hi there, I'm looking to find the friction coefficient for steel on steel with a water film between . Any references ? Thanks

My question is regarding ANSI B1.20.1, article 4 ''SPECIFICATIONS FOR INTERNAL STRAIGHT THREADS IN PIPE COUPLING' NPSC.'' - Does that means coupling internal threads are straight threads (NPSC)? - Or that means it can be possible for some applications? - If it is used on some applications I...

My question is regarding ANSI B1.20.1, article 4 ''SPECIFICATIONS FOR INTERNAL STRAIGHT THREADS IN PIPE COUPLING' NPSC.'' - Does that means coupling internal threads are straight threads (NPSC)? - Or that means it can be possible for some applications? - If it is used on some applications I...

Unclesyd, DO you had any bad experiences or know peoples who had bad experiences with this kind of product on steam, I'm asking because the product manufacturer assume that it do the job on steam ? Thanks

Hi guys, I would like to know from past experiences if anybody has succeed in fixing a non-pressure retaining part on a vessel working at high temp. as 510°F on steam (i.e. baffle plate or something like) with a product like Hi-temp Lab Metal from Alvin products? Or maybe you have experienced...

I know for pipe and I can calculate for an elbow according to his radi but i wanted a quick easy way to determine the volume the more exactly possible when using standard BW fitting. The volume is different than straight pipe on elbows, caps and reducing fittings and I may verify with B16.9 if...

the volume contained within the fitting I already have tables for the volume inside the pipe but fittings table seems rare... Thanks

I need to find a table giving the sch40 and 80 BW fitting's volume. Is this existing? Thanks Nukie

Does WPB stand only for ASTM A234 ? I'm asking because ANSI B16.9 fitting are only marked WPB, they were ordered A234 gr WPB but how can I be sure it's A234 the only way it is OK is if they is no other materials with this grade ?

I would like to know how to calculate the delta T for gaseous nitrogen when I depressurize it thru a regulator, let say the cylinder is at 2500psi and the output of the regulator is 125 psi. Any formulas and references are welcome Thanks

ChasBean1, keep in mind that this expansion joint has no purposes of expansion at all. It is employed only to compensate the flange misalignement, So there is no need for axial compression or extension in this case. Regards

I would like to know if the torque applied to the Tie Rod spherical washer nut of a joint who is installed for flanges misalignment purposes has an impact on how the joint will works ? As I understand this, if the nut on spherical washer are loose, the joint will have less rigidity and will be...

Mainly the pressure/temperatue rating Table for every ratings but would appreciate a full copy and I'm willing to pay for copy and posting... BTW do you know a listing of the history of B16.5 up to now because I would like to compare the maximum working pressures in relation with the material...

I'm hardly looking for the B16.5-1968 anyone could help ? regards

HI all , I have a question regarding the rating for class 150 According to B16.5 1977 the pressure for @200deg is 195 psi According to ASME SectIII Addendum S or W74 (which refer to B16.5) the pressure for @200deg is 240 psi It seems to had change after 1974 and before 1977 Anyone can...

I'm looking for a copy of the scope of ASME B31.3 Is it possible to get it online or by e-mail ?

Is there a section of ASME covering the design and fabrication of bellows expansion joint or every manufacturer are fabricating to EJMA standard Thanks