What does OCP stand for?

Specific issues identified and resolved during the shakedown period included: * oil circulating pump replacement * flawed diverter control logic * nitrogen leak through a valve * surge tank pressure relief valve failure * frozen flow transmitter * heat source valve transmitter failure * air compressor failure * pentane pump replacement For the last five months of the monitoring period, the REG plant was available nearly continuously, except for when the pipeline compressor was shut down due to demand fluctuations.

Cardinal transformer oil circulating pumps, of glandless design to prevent leaks, are rated for continuous operation from -40°F to 100°C, with capability of thermó-siphon flow to allow natural convection even with the pump completely shut off.