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There are times when we see mechanical seals leak and the leakage cames out between the gland plate and the stuffing box face. Sometimes leakage also takes place between the shaft and the sleeve. In this case, most sleeves have an o-ring to seal the clearance between shaft and sleeve. Should we...

If I am raising an enquiry for a new seal pot, what information do I need to have in order to raise a demand for requisition. Or what information should assist me in assessing the quotation that I will receive from the supplier.

I read the following article on Wikipedia as follows: "Because of its chemical inertness, PTFE cannot be cross-linked like an elastomer. Therefore it has no "memory," and is subject to creep (also known as "cold flow" and "compression set"). This can be both good and bad. A little bit of creep...

Dear bk19702, please explain the following: "The bottom line is you will need to ensure you have enough of a vapor pressure margin inside the seal cavity to keep the water from flashing. At 100 deg C, you need at least 1.03 barg or more inside the seal cavity for vapor suppression. The...

Does any have literature or documentation on Burgmann MFLW 805S.

Thanks. API Plan 54 is about pressurized clean barrier fluid from an external source. What was the API Plan 33 specifically about.

If you walk into a refinery, Plan 11 and 62 are the most freuqent ones. For Fertilizer and Chemical Applicants, API Plan 53 and 54 are the common ones.

Dear Flexibox, you quoted "Make sure that you use 3/4" tubing and sweeping bends as opposed to 90 degree elbows. if you have 1/2" tubing change it and you may notice significant change when considering all above comments." Please explain why sweeping bends and 3/4" tubing are better.

I have KSB pump at my site. Its using two John Crane type 309 and 309BT seals. Its quite an old pump. I came acorss the documents of the pump the other day and found out that KSB had recommended API Plan 33 for the outboard seal. At the moment we don't have any plan for the outboard seal...

Thanks for all the help guys.

We have two centrifugal pumps which we will be comissioning soon. One pump has tandem seal arrangement and one has dual seal arrangement. Both these pumps are using seal pots. For testing purposes, we used water to check the pumps. During testing both seals worked fine, water level in sea pot...