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Dear Friends my question is on hastelloy grade why and where it is recommended to use?? as far as consern corrosion point of view there is more then 10% Molibdanum hence it is highly corrosion resistant metal, but while we look on complete composition Ni is more then 50% as i know MO is...

can any one have any idea why we follow Class instead of Schedule in PVC and CS pipe

Thanks XL83NL for your response,here what i have seen professional are purchasing MS(Mild steel) pipe based on Class only not schedule, based on class only they are getting desired pipe plz see the link http://www.amitpipetube.com/specifi1.html where Class A/ClassB/C given...

What is the diffrence between pipe Class and Pipe schedule please don't confused with Pipe grade Like Pipe ASTM 106 Gr B in indian indusrties what i found professional are using Schedule in SS piping while in CS(Carbon Steel) thay are using Class viz Class A,Class B and Class C, what is this...

thx all

Dear All my question is for spacific power consumption in Vapour compresson system as it is power consumption per TR is this power include everything like Compressor power/chilled water pump power/condenser water pump power/cooling tower fan power as i read somewhere standard spacific power...

thx to all but my question is as it is i only asked Class#A/B/C Differences on same size as project people are purchasing pipe just mentioning Nominal bore,MOC and Class-A/B/C Only

somewhere i found that as well as class changes thickness also changes thats why i confused as i know class represent tensile strength of pipe

can any one expalin what is pipe class in MS piping,Like Class-A,Class-B,Class-C etc is it same as schedule?? whether i need to spacify Pipe schedule with Class thanks in advance

many many thanks to all of you

ok finally it mean pressure drop will reduce as nos of channel incraeses(flow path increases) for same flow rate . i think as pressure drop reduced so flow rate should be incraese at the outlet as compared to previous condition

Dear all can any one tell me the what will be the effect on delta P and flow if nos of plate incraeses in a plate type heat exchanger keeping same flow at inlet of the heat exchanger is there any formula to calculate the exact pressure drop/flow thx in advance

Dear all can any one tell me the what will be the effect on delta P and flow if nos of plate incraeses in a plate type heat exchanger keeping same flow at inlet of the heat exchanger is there any formula to calculate the exact pressure drop/flow thx in advance

daer mike these sleeve are used with Bearing genrally to protect the shaft from wear and tear and to avoid fixed location problem.

Dear sreid if replacement is concept behind this then softer face should be stationary or non spring as it is easy and economical to replace then spring loaded face i am quite agree with bk19702 thx

Dear sreid if replacement is concept behind this then softer face should be stationary as it is easy and economical to replace then spring loaded face i am quite agree with bk19702 thx

in a mechanical seal why a softer face is rotary thx in advance

can i use withdrawl sleeve in place of adapter sleeve,if any constraints,advantage/disadvantage plz explain thx in advance

Dear friend what should be steam pressure under API 62 PLAN whether it depend on size of seal or remain constant for all size pump thx in advance

DEAR PC THX CAN U PLZ SEND ME THREE PAGES DOCUMENT ON BS EN 1333:2006, WAHT U HAVE WRITTEN U HAVE GIVEN ME SAME PN/CLASS WHAT I HAVE ALREADY GIVEN CAN ANY ONE GIVE ME EQUIVELENT TO PN10/PN16/PN25/PN40 CLASS MY QUESTION IS STILL ON SAME STAND THX