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ASTM International , 04/01/2015
Publisher: ASTM
File Format: PDF
$32.00$65.00
1.1This practice covers aid for the equipment manufacturer, the installer, the oil supplier and the operator in coordinating their efforts towards obtaining and maintaining clean petroleum fluid hydraulic systems. Of necessity, this practice is generalized due to variations in the type of equipment, builder's practices, and operating conditions. Constant vigilance is required throughout all phases of design, fabrication, installation, flushing, testing, and operation of hydraulic systems to minimize and reduce the presence of contaminants and to obtain optimum system reliability.
1.2This practice is presented in the following sequence:
Section
Scope
1
Referenced Documents
2
Terminology
3
Significance and Use
4
Types of Contamination
5
General
5.1
Water
5.2
Soluble Contaminants
5.3
Insoluble Contaminants
5.4
Lodged Contamination
5.4.2.1
Suspended or Loose Contamination
5.4.2.2
Contamination Control
6
6.1
Initial Filling
6.1.1
In-Service Units
6.1.2
Connection of Contamination Control System
6.1.3
Piping or Tubing Contamination Control System
6.1.4
Contamination Control Procedures
6.2
Full Flow Contamination Control
6.2.1
Bypass Contamination Control
6.2.2
Batch Contamination Control
6.2.3
Contamination Control Processes
6.3
Gravity
6.3.1
Mechanical
6.3.2
Centrifuge
6.3.2.1
Filters
6.3.2.2
Supplementary Methods
6.3.3
Limitations of Contamination Control Devices
6.3.4
Storage
7
7.1
Inspection
8
8.1
System Components
8.2
Valves, Strainers, and Coolers
8.2.1
Sumps and Tanks
8.2.2
Control Devices
8.2.3
Pumps
8.2.4
Flushing Program
9
9.1
Preparation of System for Flushing
9.2
Fluid Heating Prior to Flushing
9.3
Selection of Flushing Oils
9.4
System Operation Fluid
9.4.1
Special Flushing Oil
9.4.2
Flushing Oil Selection Guide
9.4.3
Flushing Procedure for New Systems
9.5
Flushing Oil Charge
9.5.1
Cleaning of Filtration Devices
9.5.2
Cleaning of System Components
9.5.3
System Flushing and Flush Acceptance Criteria
9.5.4
Draining of Flushing Oil
9.5.5
Displacement Oil
9.5.6
Interim Corrosion Protection
9.5.7
New Fluid Charge
9.5.8
Flushing of Used Systems
9.6
General Guidelines
9.6.1
Procedure
9.6.2
System Maintenance
10
Preinstallation
10.2
10.3
Decision to Flush In-Service Hydraulic Systems
10.4
Fluid Condition Monitoring
11
Fluid Sampling Techniques
11.2
Visual Inspection
11.3
Laboratory Analysis
11.4
Fluid Cleanliness Criteria
11.5
General Information
12
Centrifuge Ratings
12.2
Coalescence
12.3
Vacuum Dehydration
12.4
Adsorption
12.5
1.3The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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