SFPSFLUSH4 Sawyer Systems Standard （索耶SFPSFLUSH4系统标准）.pdfVIP

Sawyer Fluid Power Standard Hydraulic Piping Flushing SFPS-FLUSH-0 Systems Procedure Page 1 of 6 1.0 Scope This procedure covers the minimum technical requirements for cleaning and flushing of Hydraulic Systems and Piping, and related accessories. 2.0 Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an enclosed circuit. The initial cleanliness level of a hydraulic system can affect its performance and useful life. Unless removed, particulate contamination present after manufacture and assembly of a system can circulate through the system and cause damage to the system components. To reduce the probability of such damage, the fluid and the internal surfaces of the hydraulic fluid power system need to be flushed clean to a specified level. Flushing of lines in a hydraulic system needs to be viewed as one means of removing in-built and residual contamination. 2.1 Flushing Procedure (see Sub-Section A.1) 2.1.1 2.1.2 Perform oil flushing to reach target cleanliness level. 2.1.3 Inspect and verify that the cleanliness level was achieved. 2.1.4 Follow the proper steps when disassembling the flushing loops to prevent contaminants from entering the cleaned system. Seal off all components with plugs, blind flanges, etc. 2.1.5 Perform routine maintenance to stabilize contaminant levels to within control targets. 2.1A Strategy for Maintaining Cleanliness After Flushing 2.1A.1 Prevent new contaminants from entering. 2.1A.2 Select suitable system filters. New oil should be filled through a system filter or another suitable filter. 2.1A.3 All