Most open-drive compressors use bolt-on service valves, which cannot be replaced is a false statement.
Open Drive Compressor is a term that is often called a coupler drive. This is known to be a fully Serviceable motor that is said to drives the compressor through the use of a Coupling or Belt.
Most open-drive compressors use bolt-on service valves, which cannot be replaced is a false because open drive compressors are said to be driven by a motor.
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