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Dear Experts, We are planning to tap the Flush Out (FO) connection of the mechanical seal to the pipe upstream of the pump suction flange. Is this permitted per API 682. Thanks in advance...

Dear Expert, Do you think that this seal piping will work?

Dear Experts, How reliable is the parallel operation of centrifugal pumps using steam turbine and motor as drivers? Thanks....

Dear All, Attached file shows the axial & side clearance requirements as per api 686 for vertically suspended can pump. Is this applicable to low temp pumps. What i think the purpose for these clearance is just for the thermal expansion. Hope to hear your expert advise.

Dear all, anybody got experience on using glycol as barrier seal for a plan 53c to be used on cryogenic pumps (ethylene fractionator reflux pump)?

Dear All, We are currently having a problem on the said seal flush plan. Currently the installed plan for the 4 pumps is plan 53 C. However, our licensure learned that applying plan 53 C once the seal wear will contaminate the process fluid (ethylene). The recommended solution now is change the...

Dear All, What is your experience on hydro testing of pipes. As far as safety is concern, is putting a pressure relief valve beneficial? thanks in advance..

Dear All, Is it acceptable the pump to be shimmed during alignment? The situation is that during our final alignment, we have noticed that the motor needs to be lower more, to have the alignment tolerance. However, the motor has no shim already and that we need to shim the pump in order to have...

Dear All, We are one year prior to commissioning of a new Ethylene Cracker Plant. One of the problem that arises during this phase of the project is the cleaning of suction piping of the process gas compressor (charge gas compressor)downstream of the suction filter before the suction flange of...

Hi All, Do you have experience on seal flushing plan 32 on which the filter on this seal flush plan clogged? Because on the normal arrangement for this seal plan, it has a y strainer normally that is unspared and no monitoring of the delta P. thanks...

Dear All, Is it safe for a steam turbine driven condensate pump (centrifugal type) and lube oil pump (screw type)to have a fail open control valve upstream of trip valve? Thanks in advance...

Hi All, What are the technical differences between an attemperator and desuperheater.thanks...

Hi All, Can someone help me on critical maintenance issues of ethylene cracker furnace? Thanks a lot in advance....

Hi Guys, Needing your expertise on seal plush plan 11 + 61 to be used on 98wt% Sulfuric Acid Unloading Pump. Original plan is 11 + 62 which is better. However because water or steam is not allowed (not recommendable) as a quenching media because water or condensate will react with the process...

What are the benefits of using anti-fouling coating for a compressor rotor & diaphragm for a charge gas compressor of an ethylene cracker plant?

Hi All, How does adjustable inlet guide vanes affect the compressor flow/head? Could someone explain the principles? Thanks a lot guys...

Hi All, one objective of mechanical running test is to verify oil flow, friction horsepower, and heat rejection to the lube oil.Since the test is carried out under vacuum conditions, resulting in very low aerodynamic thrust loads. It should be noted that thrust friction horsepower constitutes...

Is a compressor casing considered as pressure vessel as per international codes?

Hi Guys, My company will send me next week to witness the performance testing/mechanical running test of our new multistage centrifugal compressor (Charge Gas Compressor, Tertiary Refrigerant Compressor, Hydrogen/Methane Compressor) for our Ethylene Cracker Project. This is my first time to...

HI guys, there is a question on our team today which concern on which comes first for a welding joints requiring PWHT. Is it needed first to conduct radiography then PWHT or finish first PWHT then conduct radiography...Hope to your from you guys and thanks in advance...