Vilter Manufacturing LLC, a company of the Emerson Climate Technologies business segment of Emerson, introduced its next-generation vapor recovery units (VRUs). The new VRUs feature hermetically sealed Copeland Scroll compressors, horizontal lube oil stabilizer and the ROC827 controller.
Vapor recovery came to the forefront in August 2013 when the EPA issued a final ruling (40 CFR part 60, subpart 0000) requiring the capture and recovery of at least 95% of tank vapors produced in virtually all crude oil and gas production, transmission and distribution.
Emerson’s new VRU is part of a unique vapor recovery process that employs hermetically sealed scroll compressors requiring very low oil flows. The oil can be processed through a multi-stage, heated, horizontal stabilizer that removes all absorbed hydrocarbons from the lubricating oil. The oil is then returned to the compressor as part of the closed loop lubrication system. By employing the oil stabilizer, the system maximizes throughput while protecting the compressor from low oil viscosity caused by dilution, a common and serious problem in previous VRUs.
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