Customization: | Available |
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Type: | Lead-Acid Batteries |
Usage: | Car, Bus, Electric Bicycle, Boat, Valve Regulated Lead Acid Battery Automobile |
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Specifications (mm) | Parameters | |||||
Head Diameter | Screw Diameter | Screw Pitch | Length | Condition | Test Project | Standard |
25.2mm | M18mm | 27.5mm | Basic detetion | Opening Valve pressure | 12.5±2Kpa | |
Closing Valve pressure | 11.5±2Kpa | |||||
Valve pressure defference | ≤2.0Kpa | |||||
Acid and corrosion resistance test | Opening Valve pressure | 12.5±3Kpa | ||||
Closing Valve pressure | 10.5±3Kpa | |||||
Valve pressure defference | ≤2.0Kpa | |||||
High and low temperature resistance test (high temperature 900C and low temperature -300C | Opening Valve pressure | 11.5±3Kpa | ||||
Closing Valve pressure | 9.5±3Kpa | |||||
Valve pressure defference | ≤2.0Kpa | |||||
Aging resistance test (high temperature 90 ºC low temperature - 30 ºC) | Opening Valve pressure | 11.5±3Kpa | ||||
Closing Valve pressure | 9.5±3Kpa | |||||
Valve pressure defference | ≤2.0Kpa | |||||
Battery water consumption test (60 ºC high temperature cycle test |
Mass change fraction | ≤3% | ||||
Working environment test | ~40ºC~+80ºC | normal | ||||
Rubber gasket | Shaw A hardness | 40±30 | ||||
Elongation at break after corrosion | ≥300% | |||||
Tensile strength after corrosion | ≥5Mpa | |||||
Compression set (90 ºC/22h) | ≤35% |