API STD 680-1987 PDF

Scope: This standard covers the minimum requirements for double-acting reciprocating compressors of 600 brake horse power (448 kilowatts) and below used in refinery services with lubricated or nonlubricated cylinders in utility air and/or instrument air service up to 125 pounds per square inch gage (8.6 bar). Driver@ related lubricating systems@ controls@ instrumentation@ intercooler@ aftercooler @ receiver@ and other auxiliary equipment are covered in this standard. The compressor will generally be spared. CAUTION: Compressors intended for instrument air service require dry cylinders to supply oil-free air. Compressors used in plant air service can be either of the dry-cylinder or lubricated-cylinder type construction. Because air/oil mixtures may ignite@ the purchaser/user is cautioned of the need to carefully select the cylinder lubricant and consider all operating conditions. Temperature criteria are described in 2.3. NOTE: A bullet (*) at the beginning of a paragraph indicates that a decision by the purchaser is required. These decisions should be indicated on the data sheets (see Appendix A); otherwise@ they should be stated in the quotation request or in the order.

API STD 680-1987 history

1987 API STD 680-1987 Packaged Reciprocating Plant and Instrument Air Compressors for General Refinery Services