行业组件数据 · 2026

进气阀

Inlet valve regulates fluid entry into delivery manifolds for precise flow control in industrial systems.

技术定义与适配语境
典型 进气阀 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 precision-engineered inlet valve is a critical flow control component installed at the entry point of delivery manifolds in industrial fluid systems. It functions as a primary interface between supply lines and distribution networks, featuring a robust body with internal sealing mechanisms that open, close, or modulate to regulate fluid entry. Designed for high-pressure applications, it maintains system integrity by preventing backflow and ensuring unidirectional flow while withstanding thermal expansion, pressure surges, and corrosive media. Common configurations include ball, gate, globe, or check valves with actuation methods ranging from manual handles to automated pneumatic, hydraulic, or electric actuators for integration with process control systems.

组件规格

定义
A precision-engineered inlet valve is a critical flow control component installed at the entry point of delivery manifolds in industrial fluid systems. It functions as a primary interface between supply lines and distribution networks, featuring a robust body with internal sealing mechanisms that open, close, or modulate to regulate fluid entry. Designed for high-pressure applications, it maintains system integrity by preventing backflow and ensuring unidirectional flow while withstanding thermal expansion, pressure surges, and corrosive media. Common configurations include ball, gate, globe, or check valves with actuation methods ranging from manual handles to automated pneumatic, hydraulic, or electric actuators for integration with process control systems.
工作原理
Operates through mechanical displacement of internal sealing elements (such as balls, discs, or gates) to create or obstruct flow paths. When actuated, the valve stem moves the sealing element away from the seat, allowing fluid to enter the manifold. Closure occurs when the sealing element returns to the seat, creating a pressure-tight seal. Check valves use pressure differentials for automatic operation—flow opens the valve when inlet pressure exceeds downstream pressure, while reverse flow forces closure. Modulating valves use proportional control to adjust opening degrees for flow rate regulation.
材料
Body: ASTM A216 WCB carbon steelASTM A351 CF8M stainless steelor ductile ironSeals: PTFEEPDMor VitonStem: 17-4PH stainless steelActuator Housing: Aluminum alloy or coated steel.
Actuation
Manual, Pneumatic, Electric
Leakage Class
ANSI/FCI 70-2 Class IV
Connection Type
Flanged (ANSI 150/300), Threaded (NPT, BSP)
Pressure Rating
Up to 600 PSI
Temperature Range
-20°C to 200°C
Flow Coefficient (Cv)
5-50
标准
ISO 5208ISO 5752DIN 3202ANSI B16.34API 598

行业分类与别名

进气阀 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

Seal material incompatible with fluid media->Internal leakage leading to pressure loss and contamination->Validate chemical resistance charts; use PTFE or FFKM seals for aggressive fluids
Improper installation torque on flange connections->Gasket blowout or joint leakage during pressure surges->Follow torque specifications; use calibrated tools and sequence tightening
Abrasive particles in fluid stream->Seat and stem erosion causing poor shutoff->Install upstream filters; specify hardened or coated trim materials

工业生态与工程逻辑

0
Seal degradation from chemical incompatibility
1
Stem packing leakage under thermal cycling
2
Cavitation damage in high-velocity flows
3
Actuator failure in automated systems
4
Corrosion in humid or acidic environments

合规与检测

tolerance
Dimensional per ISO 5752; leakage ≤ 0.01% of rated capacity per ISO 5208
test method
Hydrostatic shell test at 1.5x rated pressure; seat leakage test with air or water per API 598

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 an inlet valve and a control valve?

Inlet valves primarily manage on/off or check functions at system entry points, while control valves precisely modulate flow rates using feedback systems. Inlet valves focus on isolation and prevention of backflow, whereas control valves adjust process variables like pressure or temperature.

How often should inlet valves be maintained?

Perform visual inspections quarterly, leak tests biannually, and full overhauls every 2-3 years or per operating hours. High-cycle or corrosive applications require more frequent checks—consult manufacturer guidelines based on service conditions.

Can inlet valves handle abrasive fluids?

Yes, with material selections like hardened stainless steel bodies, ceramic-coated internals, or elastomer seals resistant to abrasion. Specify valves designed for slurry or particulate-laden fluids, and consider regular seat replacement in high-wear applications.

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CNFX Industrial Component Index · 机械和设备制造

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