行业组件数据 · 2026

杆密封压盖

A rod gland is a mechanical sealing component that prevents fluid leakage around reciprocating or rotating rods in pressure chambers and spring housings.

技术定义与适配语境
典型 杆密封压盖 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 rod gland is a precision-engineered sealing assembly designed to maintain pressure integrity in systems with moving rods. It typically consists of a housing, sealing elements (such as packing rings, O-rings, or lip seals), and a gland follower or nut that applies compressive force to the seals. In pressure chambers and spring housings, it prevents the escape of pressurized fluids (liquids or gases) and excludes contaminants, ensuring reliable operation and safety.

组件规格

定义
A rod gland is a precision-engineered sealing assembly designed to maintain pressure integrity in systems with moving rods. It typically consists of a housing, sealing elements (such as packing rings, O-rings, or lip seals), and a gland follower or nut that applies compressive force to the seals. In pressure chambers and spring housings, it prevents the escape of pressurized fluids (liquids or gases) and excludes contaminants, ensuring reliable operation and safety.
工作原理
The rod gland operates by creating a tight seal between the rod and its housing through compressive force applied to sealing elements. As the rod moves (reciprocating or rotating), the seals conform to the rod surface, filling microscopic gaps. In pressure chambers, it balances internal pressure to prevent leakage; in spring housings, it retains lubricants and blocks debris. Adjusting the gland nut controls seal compression, optimizing sealing performance and minimizing friction and wear.
材料
Common materials include: Housing: Carbon steel (e.g.AISI 1045)stainless steel (e.g.316 SS)or aluminum alloys. Seals: Nitrile rubber (NBR) for oilsfluorocarbon (FKM/Viton) for chemicalsPTFE for high-temperature/low-frictionor graphite for high-temperature/pressure. Gland nuts: Steel or brass. Coatings: Chrome plating or nickel plating for corrosion resistance.
Seal Type
Packing rings, O-rings, lip seals
Mounting Type
Threaded, flange, or cartridge
Pressure Rating
Up to 300 bar
Temperature Range
-40°C to 200°C
Rod Diameter Range
5-100 mm
Standards Compliance
ISO 6194, DIN 3760
标准
ISO 6194DIN 3760SAE J515

行业分类与别名

杆密封压盖 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 degradation due to heat, chemical exposure, or aging->Fluid leakage, pressure loss, contamination ingress->Use compatible seal materials, implement regular maintenance schedules, monitor temperature and pressure
Improper gland adjustment (over- or under-tightening)->Increased friction, seal blow-out, rod scoring->Follow manufacturer torque specifications, use calibrated tools, train operators on adjustment procedures
Rod misalignment or surface defects->Uneven seal wear, premature failure, leakage->Ensure proper rod alignment, use hardened or coated rods, inspect rods during maintenance

工业生态与工程逻辑

0
Seal failure leading to fluid leakage
1
Excessive friction causing rod wear
2
Over-tightening damaging seals or rod
3
Material incompatibility with fluids

合规与检测

tolerance
Housing bore tolerance: H7, Rod diameter tolerance: f7, Seal compression: 10-30% of cross-section
test method
Pressure testing per ISO 6149, leak rate measurement using bubble test or pressure decay, material certification per ASTM standards

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 primary function of a rod gland?

To prevent fluid leakage and exclude contaminants around moving rods in pressurized systems, ensuring operational integrity and safety.

How do you maintain a rod gland?

Regularly inspect for leaks, adjust gland nut compression to minimize wear, and replace seals based on service intervals or signs of degradation like hardening or cracking.

Can rod glands be used in high-temperature applications?

Yes, with appropriate materials like PTFE or graphite seals, which withstand temperatures up to 200°C or higher, depending on the design and pressure.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

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
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 杆密封压盖

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

谢谢,信息已发送。
谢谢,信息已收到。

需要制造 杆密封压盖?

对比具备该组件加工或装配能力的制造商资料。

创建制造商档案 联系我们
上一个组件
杆密封件
下一个组件
杆密封压盖
URN:CNFX:ME:UNIT:ROD_GLAND