Single Vs. Double Mechanical Seals
Single Vs. Double Mechanical Seals
(OP)
When selecting a new pump for a process plant how to decide if you need a single or a double mechanical seal?
Is this seal selection based on the pumping conditions (disch. press, vap. press, ..etc), or is there a definite rules for such selection?
I searched in the API682 and API610, but could not find something clear about this issue.
Thanks in advance for your help,
Is this seal selection based on the pumping conditions (disch. press, vap. press, ..etc), or is there a definite rules for such selection?
I searched in the API682 and API610, but could not find something clear about this issue.
Thanks in advance for your help,





RE: Single Vs. Double Mechanical Seals
http
RE: Single Vs. Double Mechanical Seals
generally, for hazardous fluids, double seals are utilized with a barrier fluid between the two seals to prevent leakage to atmosphere.
good luck!
-pmover
RE: Single Vs. Double Mechanical Seals
For fluids that will damage the seal faces (fluid with particles in them) you can use a double seal.
There is allot of info on mech seals but in the end you have to make the call. My advice is to learn about them then the decision is made easy.
good luck!
RE: Single Vs. Double Mechanical Seals