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Dear Please advice me Hydrotest & dryup after hydro test requirement for SS (304, 304L, 316, 316L) piping system. Regards

Nicke, Epoxy type corrosion resistant paint , No i am not aware. please add your valuable comment.

Dear Friends Please reply I have to clean Stud Bolt for coating. Present Condition, Rusted, Full with with dust, 60% thread is greased. I think i have to go as per following step but need your suggestion. 1. cleaning with wire brush for removing rust & dust. 2. De-greasing by De greasing...

Dear All Please provide me some information about below query 1. Difference between stud & machine bolt? 2. Which one is better for flange size more than 600 NPS to 3500 NPS as per AWWA standard flange class 150. 3. any standard reference for bolt selection for awwa flanges. Regards

Thanks for all of you to reply my query. PTFE or durabolt (epxy coated) is one the good option to avoid galling , corrosion every thing . My contractor already installed all non coated B7 stud bolt and now suggesting cold galvanizing / painting and sealing between flange to avoid corrosion...

Dear All I have two question regarding material selection for Stud Bolt. 1. Can i select B7 alloy steel stud bolts for SS 316 or SS304 flanges , if it is acceptable how can i justify galvanic corrosion issue due to dissimilar metal contact issue. Any standard reference is highly appreciated...

Any one can tell me about ASME certification in India, KSA, Bhahrain, or any institute , organization providing such facility in above said country.

Yes you can perform the hot tap by adding a weldolet on header but following need to be studied before performing the work. 1. Line Pressure, line temperature and line flow during welding. 2. Line pressure, line temperature and line welding during drilling. 3. Wall thickness of header must be...

Again, Another Issue is if we cut the joint and make the bevel again for re welding than our gap for welding is going to be increased by 4-3mm. it means inertial we maintain 2mm gap, but after cutting and re welding gap is going to be increased and it become 6mm normally. this will effect...

1). What size and schedule of this line? Line Size 200 Sch 80. 2). What is this line connected to on the upstream end? turbine main stop valve. 3). What is this line connected to on the down stream end? for HRSG Boiler 4). What is the normal and maximum Operating Temperature of this line...

Dear All Did cutting & re welding is effecting stress analysis of steam line ASTM A335 weld P91. if you have any standard reference for cutting & re welding of piping system kindly specify. Regards