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Greetings to Respected and Experienced Members... Please let me know this. 410 has less desirable properties than 316 but it is placed in High Alloy Grade category. What is the reason for this and what extra benefit they have because of this category. Thanks in advance Regards...... Hard Work...

Hello to All Experienced and Respected Members, Pressure seal bonnet valves are used in case of Clean , Steam and Non corrosive services. Please justify the feasibility of this statement with a Logic behind. Thanks PME Hard Work with Smartness is the key to success

Everybody knows that Clean services require Soft Trim and Dirty services require Hardened trim. What are the cases where clean services require Hardened trim and dirty services soft? Please give examples. Thanks PME Hard Work with Smartness is the key to success

Hello everybody! Appreciate your help as I have few questions in my mind regarding Piping Specification... 1. How one can decide the maximum and minimum size for a specific fluid/medium. May be based on Client requirements but not exactly. 2. How to find the relevant material group in ASME...

Hi to All respected and Experienced members... -There is a Hardness difference in Seat and Disc of valves and the value is restricted to 150BHN. Please explain the purpose of Hardness difference. Per my understanding there is an impact on Trim material selection and the more the Hardness...

Hi All respected members, Please let me know in general whether internal corrosion is more dangerous or the external one. Regarding the piping industry internal one has more severe effect as the thickness calculations are based on Internal corrosion and regarding the Pipeline industry the...

Hello Everybody, Generally the Trim material has Higher corrosion or Erosion resistance than body material but in some cases it has similar metallurgy to valve body. Pl. explain these exceptional cases regarding size, service, design and operating conditions, Pipe material, etc. as there are...

Hi Is there any basis for selection between rising and non rising stem for valve. Thanks... Hard Work with Smartness is the key to success

Hi All! If there is any specific criterion for the selection of Integral or Renewable seat as somebody told me that size criteria is the basis for the same. Thanks for your help....... Hard Work with Smartness is the key to success

Hi.. This is regarding System efficiency. Per my understanding, System having few valves with High Pressure drops is more efficient. Consequently small boilers/pumps can be used. Comments are Highly Appreciated. Thanks..... Hard Work with Smartness is the key to success

Hello All! Regarding flow of Liquids and Gases through valves. Is there any difference between flow of Liquids and Gases. What are the consequences and their resolution. Cavitation and Flashing, normally are the problems associated with the Valves. Mention if anything other than this. Thanks...

Hello all! Per 31.3/31.1, there is a relation between Temperature and De-rating factor (value of coefficient) in the Table provided. Is there any relation with Pipe thickness and practical aspect in piping. Thanks for your valuable comments....

Hi However Pipe Thickness is very common but Please let me know the following.. -Simple rule to obtain ratio L/Do where L is Distance between stiffeners and D is external Diameter of Pipe. -Procedure for thickness calculation for the case when Do/t < 10. -Why we are using the demarcation of...