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Hi All, When we look at the value in the test standarts for Class IV control Valve, metal to metal The standart says "Max. allowable leakage 0,01% of Valve Rate Capacity" . and i am wondering what is the meaning of "valve capacity" and how can we calculate and the final what except to this...

Thank you so much Mr @Danlap and Everyone

A lot of diversity has been created by using different oils in the rotating equipment in the existing facility. I want to simplify these oils on a brand / model basis. Is there a study in the literature related to this? How should I proceed? Thank you for your attention.

Is there a procedure for tightening the packing,Gland packing at valves in the field? For exampe If there is a leak, how to tighten the stuffing in the field. Is there a follow-up on how many times the packing will be tightened?

Hi Sir , What you need to understand that there is a very large pressure drop from the set pressure at inlet to the outlet. In particular, the orifice area where the set pressure is the expands into the large volume of the body bowl. The pressure drop can be up to 90% of the set pressure...

Thanks all for reply. Actually i cant find anythink for outlet pressure of the PSV but i see one think. i want to explain below PSV 1 1/2" inlet Flange 1500# to outlet 3" 300# , that time i can easly say max allowable pressure at the end point of outlet flange is look around 50 bar. And...

Hi Everyone, Firsly i am sorry for my english but i try to explain what i say. PSV s normal Sprig Loeaded and convectional 1 1/2" 1500# to 2" 300# PSV Set Pressure 180 Bar Operatioan Pressure 145 Bar PSV On the Pump Pump is the Positive Deplacment Pump ( Piston Type ) PSV Outlet connection...

I am sorry about that , i am talking about this link 's course https://www.icmlonline.com/

Hi All, I find a course about maintenance lubrication application and this course is called "machinery lubrication Level 1" Anyone get this course before ? Do you think this course is useful ? thanks

Hi all, First of all I am the new one on this forum. I have been working at refinery as a workshop Maintenance Engineer since 2 years and i am looking PSV, Valves, Workshop, HVAC, All Lubrication. thats my first wueastion, Do you know any course for PSV Maintenance ? Our PSV team 4...