单波纹管轴向补偿
01 轴向滑移补偿：内套筒相对外套筒沿管道中心线方向滑移，用于吸收直线管段的轴向热位移。
Joints de dilatation
Oil-Filled Sleeve Compensator
注油式套筒补偿器用于管道轴向位移补偿，通过套筒滑移结构和注油密封维护通道，适用于热力及工业管线的伸缩补偿。
产品概述
产品概述
Sleeve / Slip Type Compensator
Oil-Filled Sleeve Compensator
An oil-filled sleeve compensator is a sliding pipeline expansion device used to absorb axial thermal movement in straight pipe runs. It works through relative movement between an inner sliding sleeve and an outer body, with packing seals, gland compression and an oil-injection or lubrication arrangement supporting the sealing and sliding surfaces. It is typically considered for district heating, steam, hot-water and industrial circulation pipelines where anchors and pipe guides can be properly arranged. Final size, pressure, temperature, travel, material and end connection data must follow the manufacturer-confirmed datasheet and drawing.
Identification Boundary
This product is different from a metal bellows expansion joint because the movement is provided by sleeve sliding. It is also different from a spherical compensator because it is intended for axial travel, not primary angular or lateral rotation.
Data boundary: The current parameter module contains early template residue. This RichText does not use unverified DN, PN, material grade or lead-time values as confirmed product data.
Structure & Working Principle
Construction and Working Principle
A typical oil-filled sleeve compensator consists of an outer body, inner sliding sleeve, packing seal, gland or compression parts, oil/lubrication fittings, limiting or guiding parts, and end connections. When the connected pipe expands or contracts, the sleeve slides axially inside the body. The packing area seals the sliding surface, while lubrication helps reduce friction and support maintainability.
Basic Construction
Outer body
Gland and packing area
Inner sliding sleeve
Oil / lubrication fitting
The diagram is for purchasing communication only. Final construction, seal material and limiting design follow the manufacturing drawing.
Axial Sliding Principle
Neutral
The unit is at its installation length.
Compression
The sleeve slides inward as the pipe grows.
Extension
The sleeve extends as the pipe contracts.
The unit should work along the pipe centerline. Anchors separate pipe sections, and pipe guides help keep movement axial to avoid binding, packing distortion or leakage risk.
Engineering note: A sleeve compensator is not a universal pressure-balanced device. Anchors, guides, supports, friction force and pressure thrust should be checked by the piping designer.
Product Features
Features and Engineering Value
01
Axial pipe compensation
Sleeve sliding absorbs axial thermal movement in straight pipe runs.
02
Packed sealing structure
Sealing depends on packing, compression design and sliding surface condition.
03
Oil-injection maintenance
Lubrication fittings help reduce sliding friction and packing wear risk.
04
Project-based design
End type, length, material and travel should be confirmed by operating data.
Technical Specifications
Specifications and Selection Data
The table separates verified structure facts from manufacturer-confirmation items. Because no formal manufacturer datasheet has been supplied for this exact product, this page does not create specific DN, PN, temperature, travel or material tables.
| Item | Page Treatment | Notes |
|---|---|---|
| Product type | Verified | Sleeve / slip type axial pipeline compensator. |
| Main movement direction | Verified | Axial sliding movement; not used as a lateral or angular compensator. |
| Core construction | Verified as common structure | Inner sleeve, outer body, packing seal, gland, lubrication fitting and end connection. |
| Nominal size / pressure rating | To be confirmed by manufacturer | Current mixed backend parameters are not used as confirmed data. |
| Travel / face-to-face length | To be confirmed by manufacturer | Confirmed by thermal movement calculation and manufacturing drawing. |
| Material / packing / lubricant | To be confirmed by manufacturer | Selected according to medium, temperature, pressure and maintenance condition. |
| End connection | To be confirmed by manufacturer | Flange, weld end or other connection must follow project drawings. |
| Information Type | Recommended Details |
|---|---|
| Pipe and connection | DN/NPS, pipe OD, wall thickness, flange standard or weld-end dimensions. |
| Operating conditions | Medium, design pressure, operating pressure, design temperature, operating temperature and temperature range. |
| Movement requirement | Axial travel, installation length, preset requirement, straight run length and space limits. |
| System constraints | Anchors, pipe guides, support spacing, buried/aboveground installation, maintenance access and drawings. |
Applications
Typical Applications
District heating networks
For axial thermal movement in steam, hot-water and heating pipe runs.
Industrial circulation lines
For process pipelines requiring axial travel with proper anchors and guides.
Long straight pipe runs
An option when space is limited for natural flexibility or large expansion loops.
Maintainable piping projects
Useful where packing, lubrication and seal condition can be periodically checked.
Installation
Installation and Use Requirements
Check before installation
Confirm model, direction, installation length, preset travel, connection dimensions and appearance.
Keep axial alignment
Do not force the joint to correct misalignment, stretching, compression or torsion.
Arrange anchors and guides
Anchors, guides and pipe supports should follow the piping design.
Reserve access
Allow space for lubrication, gland adjustment, packing inspection and leakage observation.
Installation boundary: Pipe guides control movement direction and should not replace weight-bearing pipe supports. Pipe and medium weight require an independent support system.
Quality Control
Quality Control and Shipment Checks
Dimension and appearance
Check connection ends, sliding sleeve, gland area, lubrication fitting and fasteners.
Seal and performance checks
Confirm sealing, pressure or movement-related inspection according to the order.
Packing and marking
Confirm packing according to size, weight, shipping method and end protection.
FAQ
Frequently Asked Questions
What movement does an oil-filled sleeve compensator mainly absorb?
It mainly absorbs axial thermal expansion and contraction along a straight pipe centerline. Significant lateral, angular or combined movements should not be assigned to this product without special design review.
What is the purpose of the oil-injection structure?
The oil or lubrication arrangement supports the sliding surface and packing area, reducing friction and wear risk. Lubricant selection and maintenance frequency must follow the manufacturer document.
Are anchors and pipe guides required?
Yes. The product should operate under controlled axial movement. Anchors divide pipe sections, while guides keep the pipe aligned and reduce side-loading or binding risk.
Can a generic DN/PN table be used directly?
No. Size, pressure, travel and length vary by manufacturer construction. This page does not invent a specification table; final values require a confirmed datasheet.
What information is needed for quotation?
Please provide pipe size, pressure, temperature, medium, axial movement, installation length, end connection, anchor/guide arrangement, quantity, drawings or site photos.
Request Oil-Filled Sleeve Compensator Selection Support
Share operating conditions, travel, connection details and drawings so travel, sealing construction, material, length and quotation range can be reviewed.
Send RFQRelated Products
Related Products
Sleeve, Rotary and Spherical Compensators
View related compensator products.
Spherical Expansion Joint
For angular or combined movement layout review.
Single Axial Expansion Joint
For bellows axial pipe movement compensation.
Drawing-Based Customization
Send conditions and drawings for structure review.
结构组成与工作原理
结构组成与工作原理
典型注油式套筒补偿器由内套筒、外套筒或壳体、密封填料与压紧结构、注油接口以及端部连接组成。具体密封层次和内部结构以制造图纸为准。
注油式套筒补偿器内套筒、外套筒、密封压紧结构和注油接口
注油式套筒补偿器轴向滑移工作原理
结构组成：内套筒形成主要滑动表面，外套筒或壳体形成承压与密封安装结构，密封填料和压紧结构维持滑动位置的介质边界，注油接口用于配合密封维护。
压力推力提示：
工作原理：管道产生轴向热伸长或收缩时，内套筒相对外套筒沿轴线滑移，在允许行程内吸收位移；固定和导向系统用于约束非轴向运动并保证管系稳定。
产品特点
产品特点
注油式套筒补偿器以轴向滑移为核心工作方式，适用于直线管段热伸长与收缩补偿，并通过可维护的滑动密封结构满足项目运行和维护要求。
运动方向便于控制
02 注油密封维护：滑动密封区域设置注油或补注结构，用于配合密封维护，具体介质和操作方式按技术文件确认。
连接结构可选
03 连接方式可选：当前规格资料显示支持法兰连接或焊接连接，可根据管线接口条件进行确认。
按项目工况设计
04 按工况选型：尺寸、压力等级、材料、补偿量、安装长度及固定导向条件应结合项目工况确认。
选型边界：注油式不等于无推力型。压力推力、密封摩擦反力以及固定和导向方案必须根据实际结构与管系设计确认。
技术规格与选型
技术规格与选型
参考尺寸仅供选型。可根据项目定制尺寸和法兰标准。
| 技术规格 | |||
|---|---|---|---|
| 管道等级 | 未评级 | 连接性 | Flange/Welded |
| 压力 | 高电压 | 表面处理 | 清洁 |
| 管道特性 | 柔韧、耐盐且耐化学品 | 过程 | 机械加工 |
| 形状 | 自定义 | 尺寸标准 | 英寸 |
| 头部形状 | 正方形 | 安装孔直径 | 自定义 |
| 总长度 | 自定义 | 定制服务 | 原始设备制造商、原始设计制造商、原始品牌制造商 |
| 保修 | 1 year | 原产地 | 中国河南 |
| 品牌名称 | 凯达 | 材料 | 不锈钢304/316L |
| 最低起订量 | 1 item | 填充物 | 木箱 |
| 尺寸 | 1/2英寸-48英寸 / DN15-DN1200 | 压力 | PN10/PN16/PN25 |
| 服务 | 全天候可用 | 长度 | 自定义长度 |
| 质量 | 100% Tested | 交货时间 | 7 days |
| 优势 | 快速执行 | ||
说明：以上技术规格按你刚提供的页面截图整理录入，保留原表述。个别字段如“压力=高电压”等可能来自原始平台翻译或模板字段，若后续拿到厂家正式数据，建议再做一次字段清洗与技术复核。
应用领域
应用领域
注油式套筒补偿器主要用于轴向热位移明确、具备合理固定和导向条件的直线管段。以下为常见应用方向，实际适用性仍需结合介质、压力、温度、材料和密封条件确认。
蒸汽与热水管道
注油式套筒补偿器用于集中供热热水管网
电力与能源设施
注油式套筒补偿器用于蒸汽热力管道
石油化工装置
注油式套筒补偿器用于工业热流体管线
钢铁与冶金管路
注油式套筒补偿器用于长距离直线热力管段
集中供热热水管网：用于直线热水管段的轴向热位移补偿。蒸汽热力管道：在压力、温度和密封条件确认后用于直线蒸汽管段。工业热流体管线：适用于经材料和密封兼容性确认的工业流体管线。长距离直线管段：在固定和导向系统经过设计的条件下处理累计轴向热伸长。应用边界：特殊介质、高温、高压或特殊安装环境应单独确认材料、密封和维护要求。
安装使用
安装使用
安装重点是保持补偿器沿管道轴线正常滑移，并由固定、导向和支撑系统承担相应载荷。
核对规格、连接方式、安装位置和可用空间。
检查滑动表面、密封区域、注油接口和端部连接。
保持补偿器与相邻直管段合理同轴。
按设计设置固定和导向，避免侧向力和偏心载荷作用于滑动密封。
按制造商说明执行注油、补注和密封维护。
不在缺少确认资料时自行规定油品、补注量或维护周期。
确认初始位置、可用行程、固定导向和密封状态。
系统试验和投运前应与项目图纸及制造文件保持一致。
安装边界：不得超过允许轴向行程，也不得依靠补偿器吸收未经设计的横向或角向位移；管道和设备重量应由独立支撑系统承担。
质量控制
质量控制
质量控制重点包括连接与结构尺寸、滑动表面和密封区域、注油接口、装配状态以及包装保护。具体试验项目、压力值和验收标准按订单和质量计划确认。
尺寸与外观检查
注油式套筒补偿器尺寸和外观检查
性能试验
注油式套筒补偿器滑动套筒、密封结构和注油接口检查
包装与出货检查
注油式套筒补偿器出口包装与出货检查
尺寸与外观检查：核对连接尺寸、结构长度、装配状态及可见表面。滑动与密封检查：检查滑动表面、密封压紧区域和注油接口；是否进行压力、密封或其他性能试验以及验收参数按订单确认。包装与出货检查：保护滑动表面、密封区域和连接端，降低运输、装卸和仓储过程中的机械损伤与污染风险。
常见问题
常见问题
How does Oil-Filled Sleeve Compensator compensate pipeline movement?⌄
Sleeve, rotary and spherical compensators absorb thermal movement through sliding, rotation or multi-directional turning structures, suitable for thermal, steam and long-distance pipelines.
How is the sealing structure confirmed?⌄
Seal material and structure should be confirmed by medium, temperature, pressure, movement frequency and maintenance conditions.
Does maintenance-free mean no inspection?⌄
Maintenance-free means reduced daily lubrication or frequent maintenance under design conditions, but connection, sealing and supports should still be inspected according to the project plan.
What site conditions should be confirmed before installation?⌄
Confirm pipeline route, compensation amount, anchors, guides, installation space, medium, temperature, pressure and welded/flanged connection requirements.
What information is needed for a quotation?⌄
Please provide DN/NPS, pressure class, working temperature, medium, connection type, movement, quantity and application position for Oil-Filled Sleeve Compensator. Drawings or site photos help speed up confirmation.
Can this product be customized by project drawing?⌄
Yes. Oil-Filled Sleeve Compensator can be confirmed according to drawings, operating conditions, flange standard, material, installation space and packing requirements. Final specifications follow the confirmed drawing and order.
What inspections are made before shipment?⌄
Typical checks include appearance, key dimensions, connection areas, sealing surfaces, welding or assembly quality and packing condition. Pressure, airtightness or material checks can be added when required by the order.
How are packing and export documents confirmed?⌄
Packing can be confirmed according to product size, weight, shipping method and destination requirements. Packing list, invoice and project documents follow the confirmed order.
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