行业组件数据 · 2026

孔板/孔盘

Precision orifice plate/disc for spray nozzles controlling flow rate and spray pattern in industrial applications.

技术定义与适配语境
典型 孔板/孔盘 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

A thin, precisely manufactured plate or disc with a calibrated orifice hole that serves as the critical flow-controlling element in spray nozzle assemblies. It determines the flow rate, droplet size distribution, and spray pattern by creating a pressure drop as fluid passes through the restricted opening. The component is engineered to specific tolerance levels to ensure consistent performance in industrial spraying systems.

组件规格

定义
A thin, precisely manufactured plate or disc with a calibrated orifice hole that serves as the critical flow-controlling element in spray nozzle assemblies. It determines the flow rate, droplet size distribution, and spray pattern by creating a pressure drop as fluid passes through the restricted opening. The component is engineered to specific tolerance levels to ensure consistent performance in industrial spraying systems.
工作原理
Operates on the principle of fluid dynamics where liquid or gas forced through a restricted orifice experiences a pressure drop, converting pressure energy into kinetic energy. This creates a high-velocity jet that breaks into droplets upon exiting, with the orifice geometry determining spray characteristics. The flow rate follows Bernoulli's principle and is calculated using the orifice equation Q = C_d * A * sqrt(2ΔP/ρ), where C_d is discharge coefficient, A is orifice area, ΔP is pressure differential, and ρ is fluid density.
材料
Stainless steel (AISI 304316316L)brass (C36000)tungsten carbideceramic (aluminazirconia)hardened tool steelpolypropylenePTFEPVDF. Material selection depends on chemical compatibilityabrasion resistancetemperature rangeand pressure requirements.
Flatness
0.001mm per 25mm
Thickness
0.5mm to 3mm
Tolerance
±0.01mm to ±0.05mm
Surface Finish
Ra 0.2μm to 0.8μm
Pressure Rating
Up to 1000 bar
Orifice Diameter
0.1mm to 10mm
Temperature Range
-40°C to 400°C
Flow Coefficient (Cv)
0.01 to 10.0
标准
ISO 5167DIN 1952ASME MFC-3MISO 12238

行业分类与别名

孔板/孔盘 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Particulate contamination in fluid stream->Partial or complete orifice blockage->Install upstream filtration (10-25μm), implement regular maintenance schedules, use self-cleaning orifice designs
Abrasive fluid components->Orifice enlargement and edge rounding->Select wear-resistant materials (tungsten carbide, ceramic), implement hardened coatings, design for easy replacement
Excessive pressure differential->Cavitation erosion and material fatigue->Design within recommended pressure ranges, use multi-stage pressure reduction, implement pressure relief systems

工业生态与工程逻辑

0
Orifice clogging from particulate contamination
1
Erosion/corrosion from abrasive or chemical fluids
2
Cavitation damage from excessive pressure drops
3
Improper installation causing leaks or misalignment
4
Thermal expansion/contraction affecting tolerances
5
Fatigue failure from pressure cycling

合规与检测

tolerance
ISO 2768-mK for general dimensions, ISO 8015 for geometrical tolerancing, orifice diameter tolerance typically ±0.01mm to ±0.05mm depending on application
test method
Flow rate testing per ISO 5167 using calibrated flow meters, dimensional verification with optical comparators or CMM, pressure testing per ASME B16.34, material certification per ASTM/EN standards

制造该组件的工厂

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制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What factors determine orifice plate selection for spray nozzles?

Key factors include required flow rate, operating pressure, fluid properties (viscosity, density, corrosiveness), desired droplet size, spray pattern (hollow cone, full cone, flat fan), material compatibility, temperature range, and wear resistance requirements.

How does orifice diameter affect spray performance?

Smaller diameters create higher pressure drops, finer droplets, and lower flow rates, while larger diameters produce coarser droplets, higher flow rates, and lower pressure requirements. The diameter directly impacts spray angle, penetration, and coverage area.

What maintenance is required for orifice plates?

Regular inspection for wear, erosion, corrosion, and clogging; cleaning with appropriate solvents; verification of dimensional tolerances; and replacement when flow characteristics deviate beyond acceptable limits (typically ±5-10% from specification).

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CNFX Industrial Component Index · 机械和设备制造

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URN:CNFX:ME:UNIT:ORIFICE_PLATE_DISC