لوحات الفتحات المعايرة وفقًا لمعايير ISO لحاقنات الاختبار
صفائح فتحات مُعايرة بدقة، مُصممة لحاقنات اختبار ISO (ISO 7440 / ISO 14681). متوفرة بأقطار تتراوح بين 0.4 مم و0.8 مم، مما يضمن ظروف تدفق مُوحدة وقابلة للتكرار أثناء معايرة مضخة الديزل.
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 |
التعليمات
هل هذه اللوحات الفتحية مخصصة لاستخدام المحرك؟
لا، فهي مكونات مرجعية تستخدم فقط في حاقنات الاختبار ISO على مقاعد المعايرة.
كيف يتم تحديد قيم التدفق؟
يحدد قطر تجويف كل لوحة التدفق المرجعي وفقًا للمعيار ISO 7440-2؛ ويتم التحقق من التدفق باستخدام زيت المعايرة ISO 4113.
متى يجب استبدال لوحة الفتحة؟
اتبع فترات الصيانة وفقًا للملحق B من ISO 4008-3 أو قم بالاستبدال عندما يتجاوز انحراف التدفق الحد المسموح به.
هل هذه المنتجات متوافقة مع حاقنات اختبار Marbed؟
نعم، مع حاقنات ISO 7440 / 14681 (الأنواع II وIII وVII وIX وما يعادلها).
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