This standard is applicable to the repair of water-cooled or air-cooled piston air compressors with rated discharge pressure not greater than 3 MPa on inland river ships.
JT/T 550-2022 history
2022JT/T 550-2022 Technical requirements for repair of marine piston air compressor
2004JT/T 550-2004 Technical requirements for repairing air compressors of ship