Thank you. I am most concerned with the pressure in the plan-52 reservoir. Wondering how much higher than atmospheric it woukd be when connected to a flare vs. vapor recovery system. Can you clarify?
My question has to do with venting a mechanical seal reservoir (plan-52) to flare vs. to a vapor recovery unit. Am I correct in assuming that the vru piping is at negative pressure, while the flare line is at positive pressure?
I would like to get help on setting up the plan 53B, particularly the common practice for selecting the precharge pressure on bladder accumulator, and minimum operating pressure of the barrier fluid. thank you
Thank you, Flexibox. I do not have a particular cross-section of a seal in mind.
I was thinking more in terms of what would be the disadvantage of having the multi-springs outside the product on a single seal that is not outside mounted...yes such as a slurry seal.
It occurred to me that...
I have a question about tungsten carbide coating on a seal sleeve. The sevice is high-pressure crude with trace H2S. My question is: which grade is better, cobalt bound or nickel bound? Thank you.
The SUCTION presure on this pump is 1000 pai and the seals are at this presure. Have had this ocurrence two times; one on each pump. Not sure about the vibes but will ask. No cavitation reported. Pumps are in a remote site in a different country and I have not visited the site.
I have...
I have a customer with a few BF water pumps (1000 psi, 540 F). These pumps are 1-stage, dbl-suction impeller, horiz-split case. THey they keep trashing the seal on the coupling side after a few months run. Seal comes out with dynamic gasket blown and heavy rubbing marks on the ID of the gland...
thread819-293637
In continuation to a previous discussion....
There are other factors in play but if your product is one that leaves a residue when it dries, and your primary seal is a pusher, then you are best served by using a contacting WET seal as the backup seal. My two centavos.
Jose...
