Mechanical seal failure flow rate calculation
Mechanical seal failure flow rate calculation
(OP)
Hi All,
I am fairly new in terms of dealing with Mechanical Seal and would like to know how I can calculate the flow rate if the seal fails. I have attached a picture of a mechanical seal that I am working with.
I am fairly new in terms of dealing with Mechanical Seal and would like to know how I can calculate the flow rate if the seal fails. I have attached a picture of a mechanical seal that I am working with.





RE: Mechanical seal failure flow rate calculation
send some more information about product and what you are trying to achieve.
RE: Mechanical seal failure flow rate calculation
RE: Mechanical seal failure flow rate calculation
RE: Mechanical seal failure flow rate calculation
Max leakage in the event of failure needs to define the mode of failure. Looking at the drawing there are no pressures shown but if we assume flow through a 1/2" pipe with 1/8" orifice and 20PSI Delta P then leakage is around 1.5Gal/min. orifice area represents the bush clearance but the leakage depends on the level of damage. i think that you need to have a dual pressurised seal anyway for safety. I remember years ago getting a whiff of ammonia and it was not pleasant. if this were mine i would convert to double pressurised seals.
I now understnad why you have a double bush configeration which is rather unusual in fact this is the first time i have ever seen it. I think it is used like this to minimise any leakage to atmosphere in the event of a seal failure. not the best way to seal this if you are after safety.