行业组件数据 · 2026

上板/固定板

Upper Plate is a stationary mounting component in flow control devices that provides structural support and sealing surface.

技术定义与适配语境
典型 上板/固定板 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。

The Upper Plate, also known as Fixed Plate, is a critical structural component in slide gate or stopper rod flow control devices used in industrial processes. It serves as the stationary mounting surface that anchors the device to the pipeline or vessel, providing a rigid foundation for the moving components. This plate maintains precise alignment, ensures proper sealing against the sliding gate or stopper, and withstands operational pressures and thermal stresses.

组件规格

定义
The Upper Plate, also known as Fixed Plate, is a critical structural component in slide gate or stopper rod flow control devices used in industrial processes. It serves as the stationary mounting surface that anchors the device to the pipeline or vessel, providing a rigid foundation for the moving components. This plate maintains precise alignment, ensures proper sealing against the sliding gate or stopper, and withstands operational pressures and thermal stresses.
工作原理
The Upper Plate functions as the fixed reference plane in flow control mechanisms. It remains stationary while the sliding gate or stopper rod moves against its surface to regulate material flow. The plate's flatness and surface finish ensure tight sealing when the gate is closed, while its mounting holes and alignment features maintain precise positioning relative to the flow path.
材料
Typically manufactured from carbon steel (ASTM A36)stainless steel (304/316)or wear-resistant alloys. Surface treatments may include hard chrome platingnitridingor ceramic coating for enhanced wear resistance.
Thickness
20-50 mm
Surface Finish
Ra 0.8-1.6 μm
Pressure Rating
Up to 1500 psi
Temperature Range
-20°C to 400°C
Flatness Tolerance
±0.05 mm
Mounting Hole Pattern
ASME B16.5 flange compatible
标准
ISO 9001ASME B16.5DIN 2501

行业分类与别名

上板/固定板 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

Abrasive material flow->Surface erosion and increased clearance->Apply hard-facing coatings and implement regular surface inspection
Thermal cycling->Warping and loss of flatness->Use materials with matched thermal expansion and incorporate cooling channels

工业生态与工程逻辑

0
Surface wear leading to leakage
1
Thermal distortion affecting flatness
2
Corrosion in aggressive environments
3
Fatigue cracking at mounting points

合规与检测

tolerance
Flatness within 0.05 mm, parallelism within 0.1 mm, surface roughness Ra ≤ 1.6 μm
test method
Surface plate inspection, coordinate measuring machine (CMM), pressure testing per ASME B16.34

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

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 is the difference between Upper Plate and Lower Plate in flow control devices?

The Upper Plate is stationary and provides mounting/sealing surface, while the Lower Plate typically moves with the gate mechanism or serves as a wear plate.

How often should Upper Plates be inspected for wear?

Inspect every 6-12 months depending on service conditions. Check for surface scoring, flatness deviation, and seal groove integrity.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
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请求制造能力信息: 上板/固定板

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URN:CNFX:ME:UNIT:UPPER_PLATE_FIXED_PLATE