Pump Seals come in a wide range of designs however the most important factor.
The term In-line seals simply refers to seals that are mounted to a shaft or sleeve.
Metal bellows mechanical seals feature a bellows core made of one of several types...
Mechanical seals often need to be used in chemical applications.
When speaking of "Balance" in reference to pump seals, we are not talking about Mechanical or Rotational Balance. Instead, we are referring to Hydraulic Balance.
Ask your American Seal & Packing sales representative for installation directions.
•Since mechanical seals are subject to stuffing box pressure, this pressure is utilized to achieve and maintain seal face closure in a non-balanced seal.
•If stuffing box pressure is very high, typically over 100psi., then the closing force may be too great to allow the "Boundary Layer Liquid" that lubricates the faces to be sufficient and the faces will wear prematurely.
•A balanced seal compensates for higher pressures by locating the seal faces such that stuffing box pressure has less effect on face closure.
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