Калиброванные по стандарту ISO диафрагмы для тестовых инжекторов
Прецизионные калиброванные диафрагмы, разработанные для испытательных форсунок ISO (ISO 7440 / ISO 14681). Доступны диаметром от 0,4 мм до 0,8 мм и обеспечивают повторяемые стандартизированные условия расхода при калибровке дизельных насосов.
Each plate features a single precision-drilled hole (Ø 0.4 – 0.8 mm) for controlled delivery under ISO 7440 / 14681 test conditions.
Calibrated orifice plates are precision reference elements used in ISO 7440 and ISO 14681 test injectors.
They define the flow-rate reference in the injector assembly, ensuring identical test conditions and comparable pump-delivery results worldwide.
Each plate corresponds to a Bosch reference and a nominal bore diameter between 0.4 mm and 0.8 mm.
Key Benefits
Guaranteed ISO compliance with standards 7440-2 and 14681.
Standardized pump test results – same flow data across different benches.
High-precision machining ensures repeatability and flow stability.
Easy replacement and traceability – engraved identification per ISO.
Durable stainless-steel design for long service life under calibration fluids (ISO 4113).
Key Features
Product family: 84.50.V*
Range: Ø 0.4 mm – 0.8 mm
Mounting: fits ISO 7440 / 14681 calibrating injectors
Application: with Marbed test nozzles 84.40.987 / 990 / 991 / 999 etc.
Material: hardened and polished steel, corrosion-resistant
Compliance: ISO 7440-2 (flow measurement of orifice plates)
Standard fluid: ISO 4113 calibration oil
Max flow deviation: < ±1 % within calibrated range
Technical Data (Variants)
| Variant | Ø Hole (mm) | Bosch Ref. | ISO Reference | Typical Use |
| 84.50.V4 | 0.4 mm | 1 680 103 094 | ISO 7440 / 14681 | Low-flow calibration |
| 84.50.V5 | 0.5 mm | 1 680 103 095 | ISO 7440 / 14681 | Standard flow |
| 84.50.V6 | 0.6 mm | 1 680 103 096 | ISO 7440 / 14681 | Mid-range flow |
| 84.50.V7 | 0.7 mm | 1 680 103 097 | ISO 7440 / 14681 | High-flow calibration |
| 84.50.V8 | 0.8 mm | 1 680 103 098 | ISO 7440 / 14681 | Maximum flow capacity |
Часто задаваемые вопросы
Предназначены ли эти диафрагмы для использования в двигателе?
Нет. Это эталонные компоненты , используемые только в испытательных форсунках ISO на калибровочных стендах.
Как определяются значения расхода?
Диаметр отверстия каждой пластины определяет эталонный расход согласно ISO 7440-2; расход проверяется с использованием калибровочного масла ISO 4113.
Когда следует заменять диафрагму?
Соблюдайте интервалы технического обслуживания согласно приложению B стандарта ISO 4008-3 или производите замену, если отклонение расхода превышает допуск.
Совместимы ли они с тестовыми инжекторами Marbed?
Да, с форсунками ISO 7440 / 14681 (типы II, III, VII, IX и эквиваленты).
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