Product reliability B10d
Reliability of the pneumatic components used in safety systems B10d values to use in application of EN ISO 13849-1 Reference: ISO 19973 - Pneumatic Fluid Power - Assessment of component reliability by testing
Definition
B10d is the number of cycles until 10% of the components fail dangerously.
Introduction
In pneumatic, mechanical and electromechanical technology, the life and reliability of components generally depends on wear linked to movements. Their life is also strongly affected by the working conditions, especially the following:
- Compressed air quality and conditions
- Lubricant compatibility with gaskets
- Temperature
- Environmental factors as such dust, gas and fluids.
It is vital for the component manufacturer's requirements to be complied with, otherwise the failure parameters are not valid. Product operating conditions are shown in Metal Work's General Catalogue.
Unless specified otherwise in the catalogue, compressed air must be class 3-4-3, in accordance with ISO 8573-1.
| PRODUCT FAMILY | B10d [CYCLES] |
|---|---|
| Cylinders | |
| ISO15552 cylinders, round cylinders, series RNDC, polyurethane gaskets | 30.000 km corresponding to 75×106 cycles with a reference stroke of 200mm |
| ISO 15552 cylinders, round cylinders, series RNDC, low-temperature NBR and FKM gaskets | 15.000 km corresponding to 37×106 cycles with an average stroke of 200mm |
| ISO6432 cylinders, SSC cylinders, compact cylinders, liner cylinders, stopper cylinders, polyurethane gaskets | 60×106 cycles |
| ISO6432 cylinders, SSC cylinders, compact cylinders, liner cylinders, compact guided cylinders, low-temperature NBR and FKM gaskets | 30×106 cycles |
| Flat Two cylinders | 15×106 cycles |
| Rodless cylinders | 10.000 km corresponding to 25×106 cycles with a reference stroke of 200mm |
| Hydraulic brakes, series BKK, integrated hydraulic brake | 5×106 cycles |
| Other standard cylinders in the catalogue | Greater than or equal to 15×106 cycles |
| Handling | |
| Grippers series P1, P2, P3, P4, P7, P8, P9, P10, P11, GPLK | 5×106 cycles |
| Rotary actuators series R1, series R2, series R3, series R5, DAPK | 10×106 cycles |
| Slides series S10, series S11, series S12, series S13, series S14 | 10×106 cycles |
| Guide units series GDH, series GDM, series GDS | 15×106 cycles |
| LEPK linear unit | 15×106 cycles |
| Electrical cylinders and electrical axis | It depends on the application |
| Valves | |
| Mechanical valves: series VME, series 70 MEV | 2×106 cycles |
| Manually-operated valves: series 70 MAV, series PEV pedal-operated, two-handed safety operation | 1×106 cycles |
| Pneumatic valves: series 70 PNV, series Mach 16 MPV, series Mach 11 MPV, series NAMUR, series ISO5599 IPV, series Mach 18 MPV | 50×106 cycles |
| Solenoid valves: series 70 SOV, series NAMUR, series PLT-10, series PIV.M, series PIV on base and in line, Cnomo, series Minimach, series Mach 11 MSV, series Mach 16 MSV, series Mach 18 MSV, series ISO5599 ISV, series 70 Safe air, series ISO5599 Safe air, series EB80, series HDM, series CM, series Multimach, series SOV-L | 50×106 cycles |
| Field bus (electronic only, without valves): All the interface expected for EB 80, all the interface expected for HDM, all the interface expected for CM, all the interface expected for Multimach. EB80 and CM management modules of input and output, digital and analogical. | 100×106 cycles |
| Units | |
| The working life is calculated as the number of opening/closing cycles for valves and regulators, and the number of downstream pressure changes from 6.3 to 0 bar for the other components. Filters, filter-purifiers, driers: series Syntesi, Bit, Skillair, New Deal, ONE | Infinite |
| Regulators and filters-regulators: Series Syntesi, Bit, Skillair, New Deal, ONE, GS, Regtronic, RML, RMC, RMS | 10×106 cycles |
| Lubricators: Series Syntesi, Skillair, Bit, New Deal | 50×106 cycles |
| V3V circuit shutoff valves: series Syntesi, Skillair, New Deal, ONE | 10×106 cycles |
| Progressive starters, APR: Series Syntesi, Skillair, ONE, VAP | 10×106 cycles |
| Pressure switches series PS, series 600, series 640 | 5×106 cycles |
| Accessories | |
| MRF and RFL | 50×106 cycles |
| VSR | 50×106 cycles |
| VNR | 50×106 cycles |
| STP | 50×106 cycles |
| VCS | 50×106 cycles |
| VOR | 50×106 cycles |
| Pneumatic logic | 50×106 cycles |
Table showing operating life specifications in cycles for different categories of products: cylinders, handling systems, valves, maintenance units and accessories.