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​No, however, accumulator life expectancy and performance can be affected by mounting positions. Only diaphragm style accumulators are designed to be mounted in any orientation. The preferred mounting position for a bladder style accumulator is vertical, however, it can be mounted horizontally. A bladder accumulator mounted horizontally will contain residual oil that will not fully evacuate for the application. Application information should be reviewed by Product Management prior to mounting a bladder accumulator horizontally. A piston style accumulator can also be mounted horizontally, however, seal life may be compromised due to friction and fluid cleanliness.