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Summary of Contents for Roth BA-UAK-ASME-EN
- Page 1 OPERATING INSTRUCTION PISTON ACCUMULATOR WITH ASME U-DESIGNATOR ACCORDING ASME VIII DIV. I Type: BA-UAK-ASME-EN Language: English Edition: 09-2016 Revision: Translated from German original...
- Page 2 • ASME Code Sec. VIII, Division 1 Explanation Roth piston accumulator = Roth pressure equipment Translation If sold to a country in the EEA, this operating instruction must be translated into the language of the country in which the machine is to be used.
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Page 3: Table Of Contents
Contents ____________________________________________________________________ 1 Table of Contents _____________________________________________________________ 1 Table of figures_______________________________________________________________ 1 Designated application _________________________________________________________ 2 Overview of standard Roth pressure equipment _____________________________________ 2 Notes on designated application _________________________________________________ 3 Function ____________________________________________________________________ 4 General functional description ___________________________________________________ 4 Filling and testing the pressure equipment _________________________________________ 4 2.2.1 Isochore behavior of N2 ________________________________________________________ 5... -
Page 4: Designated Application
Designated application Overview of standard Roth pressure equipment The pressure equipment essentially consist of the following components: 1. Cylinder tube 2. Piston inclusive seals 3. End cap 4. Threaded ring (not for screw-in end cap) 5. End cap seal, oil side 6. -
Page 5: Notes On Designated Application
Notes on designated application The Roth piston accumulator (Roth pressure equipment) was manufactured exclusively for use as an industrial and commercial component designed for acceptance and delivery of pressurised hydraulic fluids in hydraulic systems. Any use of the pressure equipment other than or beyond as described above or any conversion by the operator or others shall be regarded as contrary to designated use, unless by prior written agreement of the manufacturer. -
Page 6: Function
Function General functional description Roth pressure equipments are cylindrical pressure vessels with a separating element between gas and fluid volumes (see Fig. 1-1). They are used in hydraulic systems among others for energy accumulator.If the fluid pressure rises above the gas filling pressure, hydraulic energy is stored in fluid form. This may be utilised for work steps when the fluid pressure falls below the pressure of the compressed gas. -
Page 7: 2.2.1 Isochore Behavior Of N2
2.2.1 Isochore behavior of N2 Determining or controlling the pre-filling pressure (P ) at different ambient temperatures General Unless otherwise specified, the given P refers to room temperatures of + 20°C. Should the actual ambient temperature be different at the time of filling or checking P , the diagram may be used to find the pressure corresponding to that temperature when filling or checking. -
Page 8: Safety
Safety Notes / Explanations Operating instruction, mandatory: marked with a “book” Warnings: marked with a warning triangle “danger”. Explosion: marked with a warning triangle “explosion”. Notes: marked with a “hand”. The vessel filled with N2 already, as given on the pressure equipment nameplate. Identification / Nameplate The pressure equipment has a nameplate and an ASME U-Designator attached. -
Page 9: Responsibilities Of The Operator
The responsible specialist superiors must instruct the operating, servicing and maintenance staff before starting in their jobs or prior to commissioning of the pressure equipment and thereafter at appropriate intervals of at least once per year. All services, maintenance and instruction courses must be recorded in a control book. -
Page 10: Dangers
Dangers General hazard notes Operations must remain within the maximum and minimum limits specified on the nameplate and in the technical documentation. The pressure equipment must be installed ensuring that operating staff will not be endangered by escaping operating materials should parts of the safety system trigger. Structural modifications Structural modifications to the pressure equipment are prohibited. -
Page 11: Transport And Packaging
Transport and packaging Ensure that the pressure equipment will not be damaged on the outside. Always ensure that the pressure equipment, should it need to be returned to the manufacturer, will not be pressurized. Use suitable transport equipment for onward transportation or installation. Do not load the threaded bores on the face of the pressure equipment with more than the total weight given in the table. -
Page 12: Assembly / Commissioning
The components may need to be decontaminated before packaging for further transportation. Consult the datasheets for the fluids coming into contact with the components. Observe the notes on transportation and in the drawings. Assembly / Commissioning Setup / Installation The assembly if the pressure equipment is to be carried out by qualified staff and must be specially trained for this kind of work. -
Page 13: Maintenance
Maintenance General maintenance notes The pressure equipment will be largely maintenance-free after filling. To ensure perfect operation and long life of the pressure equipment, carry out the following services to the schedule specified by the operator. A monthly inspection is recommended. The intervals may be adjusted depending on experience gained. -
Page 14: Disturbance, Causes, Troubleshooting (Qualified Staff Only)
Disturbance, causes, troubleshooting (qualified staff only) Disturbance Cause Troubleshooting • • Pressure equipment system will not Shut-off valve closed Open shut-off valve supply hydraulic fluid • • Pressure relief open Close pressure relief valve • • Gas-side pressure too low Check the charging pressure •... -
Page 15: Notes
Notes Operating instruction piston accumulator UAK - English... - Page 16 Operating instruction piston accumulator UAK - English Technical changes reserved...
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