Abstract: Known operator housings include a vertical groove in an internal bore adapted for engagement with a roller. Over time the groove will fail as the roller exits the groove resulting in a gouge in the internal bore. Operator housings are disclosed in which a recess is disposed in the internal bore of the operator housing. The recess is adapted to receive a removable, arcuate-shaped insert. The insert may include a groove section adapted for longitudinal alignment with the groove in the internal bore of the operator housing. The groove section will be located within the internal bore such that the roller will exit the groove section of the insert. If the roller causes damage, it will be to the insert, not to the operator housing. If such damage occurs, the damaged insert can be removed and replaced with a new insert. This avoids scrapping or refurbishing damaged operator housing.

Abstract: Improved valve seal and integrity systems and methods are disclosed. Pressure in an internal cavity of a valve may be monitored and stored to assist in determining whether one or more seals in the valve are leaking. Internal cavity temperature may also be recorded and monitored to assist in determining whether there are any valve seal leaks. Expected pressure corresponding to a detected internal cavity pressure (that may be determined by correlating temperature and known fluid properties) may be compared to detected internal cavity pressure to assist in determining the existence of valve leaks. Internal cavity pressures and pressure differentials over time may be used to determine remaining valve seal life, leak severity, and/or integrity of a check valve on the valve. Indications of seal life, leak severity, seal integrity, and/or check valve integrity may be displayed to an end user or otherwise provided to a database or computer.

Abstract: Improved valve seal and integrity systems and methods are disclosed. Pressure in an internal cavity of a valve may be monitored and stored to assist in determining whether one or more seals in the valve are leaking. Internal cavity temperature may also be recorded and monitored to assist in determining whether there are any valve seal leaks. Expected pressure corresponding to a detected internal cavity pressure (that may be determined by correlating temperature and known fluid properties) may be compared to detected internal cavity pressure to assist in determining the existence of valve leaks. Internal cavity pressures and pressure differentials over time may be used to determine remaining valve seal life, leak severity, and/or integrity of a check valve on the valve. Indications of seal life, leak severity, seal integrity, and/or check valve integrity may be displayed to an end user or otherwise provided to a database or computer.