用于测试喷射器的 ISO 校准孔板
精密校准孔板专为 ISO 测试喷油器 (ISO 7440 / ISO 14681) 设计。孔板直径范围为 0.4 毫米至 0.8 毫米，可确保柴油泵校准过程中实现可重复的标准化流量条件。
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 |
常问问题
这些孔板是供发动机使用的吗？
不是。它们是仅用于校准台上的 ISO 测试喷油器的参考组件。
流量值如何确定？
每个板的孔径定义了符合 ISO 7440-2 的参考流量；使用校准油 ISO 4113 来验证流量。
何时应更换孔板？
遵循 ISO 4008-3 附件 B 维护间隔或在流量偏差超过公差时更换。
这些与 Marbed 测试喷油器兼容吗？
是的，配备 ISO 7440 / 14681 喷油器（II、III、VII、IX 型及同等型号）。
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