U-flo designs, manufactures and services fluid-filled electric motors and pumps for performance-critical applications across the global upstream oil and gas market, where reliability is crucial and the cost of lifetime ownership is key. Our high power, high voltage, water-glycol range is used for topside pumping and subsea applications worldwide. The next generation motor and pump solutions capable of operating at depths up to 3,000m, in the harshest, most extreme and environmentally sensitive of marine environments.

尤孚专注于设计、制造与维护充液式电机及泵类设备，服务于全球上游石油与天然气领域中对性能要求极为严苛的应用场景。在这些应用中，设备可靠性是运行基石，而全生命周期拥有成本则是决策关键。我们的大功率、高电压充液型系列产品，广泛应用于全球海工平台及海底作业领域。新一代电机与泵解决方案，能够在最深可达3000米、极其严酷极端且对环境高度敏感的海洋环境中稳定运行。

Application scenarios 应用场景

U-flo's electrical submersible pumps and motors are installed inside the caisson to minimize the topside footprint. Our pumps and motors are used in the most demanding offshore applications,offeringhigh reliability whilesavingbothcriticalspaceand money. By utilizing an environmentally-friendly, fluid-filled motor close coupled to a multi-stage high-efficiency pump, we offer a more reliable solution to offshore pumping applications.

尤孚的潜水电泵和电机均安装在深井内部，最大限度地减少在上层的占地面积。我们的电动潜水泵适用于恶劣海洋环境，提供极致的可靠性，同时节省空间和成本。使用我们环保的充液电机和高效多级潜水泵，为您提供可靠的船用泵方案。

COMMON APPLICATIONS

常见应用

U-flo Submersible Pumps and Motorsoffer the following key benefits:尤孚潜水泵和电机具有以下主要优点：

Air release valve 排气阀

Less space compared to Vertical Turbine Pump (VT)
Designed for high efficiency
Lower total cost of ownership
Environmentally-friendly, water/glycol-filled motor
Easy alignment
Low maintenance
No flooding risk
Low noise
Condition monitoring available
与立式长轴泵（VT）相比，所占空间更小
专为高效率而设计
降低总体拥有成本
水/丙二醇填充环保电机
容易对中
低维护需求
无水淹风险
低噪声
可选状态监控

泵吸入口Pump suction

潜没式电机
标准或倒装结构
Submerged electrical motor Standard or Inverted configuration
海水吸入
海水被吸入并围绕电机外部，
可在到达泵入口之前冷却电机
Fluid flow
Pumped fluid is drawn in and
around the outside of the motor,
providing motor cooling before
reaching the pump suction

Explosion-proof junction box available 可选防爆接线盒 Header tank available Provides condition monitoring of motor fluid 可选顶部集水箱 用于电机腔内海水渗漏状态监控

Non-return valve Can be located at deck level or at the last pump bowl discharge 止回阀 可放甲板层或最后的泵排出管口 泵排出弯管 Pump discharge elbow

扬水管扶正器 Column centralizers

扬水管 Discharge columns

高效率的水力设计 Efficient multi-stage pump Hydraulic designs optimized for high efficiency

吸入口滤网 防止微粒进入泵体 Suction strainer Keeps particulate from entering the pump

高可靠性流体轴承无需额外使用外部润滑添加剂Fluid bearing for high reliabilityNo external lubrication required

Hypochlorite dosing ring available 可选次氯酸给药环

Submersible motors and pumps for the toughest of environments 专为最严苛环境而生的潜水电机与泵

当置身海上，生产运营要选择你可以信赖的驱动科技一—选择尤孚泵业，即是选择安心托付。我们的充液式潜水电机与泵，承载数十年的技术积淀。面对日益严峻的工艺要求与法规环境，我们始终致力于提供业界领先的高可靠性、低维护性能关键动力系统一—无论您处在平台之上，还是深海之下。

水面泵送

尤孚电机已集成至全球多种海工装备的关键任务与安全系统中，广泛应用于半潜式平台、自升式平台、张力腿平台、浮式生产储卸油装置（FPSO）及浮式液化天然气装置(FLNG)等。
我们的海水提升电机与工艺泵采用持续运行设计，为各类水面设施提供必需的冷却水；而消防水泵电机则具备瞬时高负荷响应能力，可在紧急情况下实现自动启动，确保安全系统迅速投用。

深海运行

我们引领深海动力技术的发展方向，持续开发高精密的性能关键型解决方案。即使在最复杂严苛的环境与最偏远的海域，亦能实现更高输出、更长寿命与更低维护的卓越表现。我们的高温高压充液式深海电机，能够胜任高达3000米的作业深度与6000转/分钟的转速。所有电机均按五年服务周期设计，且经实际验证，其在两次检修间的连续运行时间可达八年甚至更长。关键应用领域包括海水注入及多相增压泵。

When you're offshore you must be able to rely 100% on the technology that drives your operations. With U-flo, you can be confident you're in safe hands. Our fluid-filled submersible motors and pumps have a pedigree stretching back more than 70 years, and in an increasingly challenging technical and regulatory arena we deliver the industry's most reliable low maintenance, performance-critical power solutions whether your application is topside or subsea.

Topside pumping

Our motors are integrated into mission and safety critical topside pump systems on a wide variety of assets worldwide, including semi-sub, jack-up, tension-leg, FPSO, and FLNG platforms. U-flo seawater lift motors and process pumps are designed to operate continuously, providing the cooling water needed for a variety of topside applications, while our firewater lift motors are configured for an instantaneous high-demand response capable of auto-starting during an emergency.

Subsea operations

We are leading the way with our deepwater power solutions, developing ever more sophisticated performance-critical designs for applications that deliver increased output, long life and low maintenance however complex the conditions and remote the locations. Capable of operating at depths up to 3,000m and at speeds of up to 6,000rpm, our high temperature, high pressure, fluid-filled subsea motors are all designed for a five-year service cycle and have proven operating spans of eight years or more between recoveries. Key applications include seawater injection and use in multi-phase boosting pumps.

Submersible Motor Design as a Core Competency 核心竞争力潜水电机设计

Standard and Inverted configuration available可选标准或倒装结构

U-flo have been designing fluid-filled motors for over 70 years and offer both standard and highly-engineered solutions to suit your applications.

Our motors are designed to offer high reliability and low maintenance.

尤孚至今已有70多年设计充液电机的经验，并提供标准和高度工程化的解决方案，以适配您的应用需求。我们的电机旨在提供高可靠性和低维护成本。 1

坚固的内部机械密封Robust internal mechanical seal

防短路板和电缆保护环，提供更高可靠性的电机Short circuit prevention platesand cable protection ring providesa higher reliability motor

单壳设计可减轻重量 双壳可以改善电机的冷却条件 Single skin design offers weight savings. Double skin can be used for improved motor cooling.

动平衡转子 Dynamically balanced rotor

可重绕定子Rewindable stator

大流量水润滑轴承 High capacity fluid-filled bearings

KEY FEATURES 主要特点

Water/Glycol fill as standard

Oil-filled available

Non-welded stator shell allows for stator removal for maintenance

Commonality of parts

Standard parts, resulting in quick turn-around for spares

标准为水/丙二醇填充

可选油填充

非焊接式定子外壳，允许拆卸定子进行维护

零件通用

标准零件，可快速更换备件

推力轴承用作辅助叶轮 改善电机的冷却条件 Thrust bearing acts as auxiliary impeller for improved motor cooling

可倾瓦推力轴承提供高承载能力 Tilting pad thrust bearing offer highest load per area

高功率、高性能、低维护

尤孚在海上潜水电机的设计领域始终走在前列。我们为用户创造的核心价值，源于领先采用的充水式技术——相比传统充油方案，具备显著优势。

不仅如此，我们还集成了一系列行业领先的设计特点，共同确保设备在各类严苛运行环境中仍能实现高效驱动、稳定可靠、维护简便、寿命持久，并最终为用户带来更高的投资回报。

为什么选择充水式电机

我们通常采用水-丙二醇混合液，这使得我们的电机能够在高温、高转速下长时间运行。即使在发生海水渗入的意外情况下，电机仍可正常工作，而充油产品在此类状况下则会发生严重故障。即使在最敏感的海洋环境中，我们的电机也具备百分之百的设备安全性。用于水面作业时，其甲板占用面积显著小于油浸式解决方案。

充水电机 vs 充油电机

水-丙二醇填充电机的核心优势

粘度低，摩擦损耗少，转速高
泄漏容忍性强，持续运行长
工作温度更低，有效延长电机寿命
环境友好型介质，满足合规要求且使用安心
结构紧凑，大幅减少甲板占用空间，便于运输安装
重量更轻，应用场景更灵活

VS

充油电机

高粘度导致摩擦损耗加剧，尤其在高速与高温工况下更易引发腐蚀风险。

一旦海水渗入，将立即引发灾难性故障，同时伴随环境危害

安装调试流程复杂，显著增加综合成本

占用空间大，对场地形成压力

且受多数水务机构禁用，应用范围受限

独特的接头技术

尤孚可提供高压注塑成型内部接头电机。该技术大幅提升了设备使用寿命，并将维护周期延长至突破性的五年以上。

我们的所有技术获得包括ERA、PED及挪威船级社(DNV)在内的多家独立认证机构的验证

高标准防护性能

我们所有电机均经过精心设计，能够适应极端压力变化，并采用高品质的双相或超级双相不锈钢外壳，即便在最恶劣的工况下也能提供最高级别的保护

集成化冷却设计

噪音与振动控制

我们的电机采用一体化冷却技术，无需配备外部辅助冷却系统，从而进一步减少了甲板的空间占用需求。

我们的潜水电机驱动泵在海工平台运行时，噪音水平始终低于80分贝(主要来自流体经甲板管道输送时产生的声音)，且其结构设计具备天然阻尼特性，可实现极低振动（最高仅2.8毫米/秒)，确保运行安静平稳。

主要技术特点

深海电机

→ 1MW-6MW 和 6.6kV-11kV选型范围

→ 3,000米深海作业能力

→ 环境友好

→ 全系列感应电机设计成熟可靠

→ 提供ROV适配连接器选项

→ 维护周期长达5年以上

→ 通过全面认证，安全合规

-推力/径向轴承

\- 电机绕组

\- 电缆接头

-机械密封

-冷却盘管

-可倾瓦轴承技术

潜水电机

→ 500kW-2.5MW和6.6kV-11kV选型范围

→ 配备可视储液罐，便于状态检查

→ 高耐用性设计，验证寿命超过25年

→ 支持泄漏容错运行，在轻微泄漏情况下仍可持续工作

→ 全绝缘电缆设计，即使海水渗入仍保持安全

→ 超压防护结构，确保密封失效后仍无海水侵入

→ 采用低摩擦材料定制设计的流体动压轴承

→ 运行温度低，电机寿命更长

→ 摩擦损耗低，运行效率更高

→ 环境友好，无涂层设计

→ 双层壳体结构，提供超强冷却效果

→ 对环境影响极小

→ 防护等级达IP68

High power, high performance, low maintenance.

U-flo leads the way in offshoresubmersible electric motor design, and the biggest benefits for our end users derive fromour use of fluid-filled technology in preference to the conventional oil-based approach.

But we also incorporate an array of other industry-leading features which help drive efficiency, ensure reliability, and deliver low maintenance, a long lifespan, and a high ROI - however challenging the operating environment.

Why choose water-filled?

We generally use a water-glycol mix that allows our motors to operate for longer, at higher temperatures and at higher speeds, and in the unlikely event of seawater ingress, they continue to work, unlike oil-filled products which catastrophically fail.

Our motors are also 100% safe in even the most sensitive of marine environments, and when used for topside applications they have a significantly smaller deck footprint than oil-filled solutions.

Water-glycol vs Oil-filled motors

Unique jointing approach

U-flo is one of suppliers to the offshore market offering motors with fully qualified high voltage injection moulded internal joints. A development that has had a dramatic impact on lifespan and has extended service intervals to a groundbreaking five-plus years. All our technology has been verified regularly over the past 20 years by a range of independent certification bodies, including Electrical Research Association, PED and DNV.

High protection

All our motors are designed to accommodate extreme pressure changes and are given maximum protection in even the harshest environments by a top-quality duplex or super duplex stainless steel shell.

Integrated cooling

Our motors are integrally cooled, eliminating the need for an auxiliary cooling system and further reducing the topside space requirement.

Reduced noise and vibration

When deployed topside, the pumps driven by our submersible motors only generate noise at levels below 80dB— from the movement of the fluid being pumped through deck level pipes - and the design is naturally damped to generate minimal vibration (2.8mm/s maximum).

KEY TECHNICAL FEATURES:

Subsea

→ 1MW-6MW and 6.6kV-11kV options

→ 3,000m subsea capability

→ Environmentally safe

→ Proven induction designs across range

→ ROV connector options

→ Service interval of 5-years+

→ Fully qualified design - thrust/radial bearings

\- motor windings

\- cable joints

\- mechanical seawater seal

\- cooling coils

\- latest tilting pad bearing technology

Topside

→ 500kW-2.5MW and 6.6kV-11kV options

→ Header tank for visual check

→ High endurance with proven service life of over 25 years

→ Run-with-leak capabilities

→ Fully insulated cable designs, even with seawater ingress

→ Over pressure designs to ensure no seawater ingress, even after seal failure

→ Custom designed hydrodynamic bearings made from low friction materials

→ Minimal environmental impact

→ Low running temperatures = longer lasting motors

→ Low frictional losses = higher efficiencies

→ Environmentally friendly, uncoated designs

→ Dual skin for superior cooling

→ Totally enclosed to IP68

Technical data 技术数据

Reliability and Service 可靠性与服务

Technical upgrades of submersible motor潜水电机技术升级

Thrust bearing with auxiliary cooling

Improved cooling and higher MTBF, improved mechanical seal life.

XLPE cable insulation system with qualified XLPE injection-moulded joint technology

Proven XLPE long-life cable insulation, with integral homogeneous moulded jointing, ensures optimisation of the electrical insulation protection and removal of a common failure mode for submersible motors.

T3 hydrodynamic tilting pad bearing with optional NiAlBr bearing housing Reduced bearing wear and thermal distortion, improved efficiency and reliability under all operating conditions.

High-quality seal

Lower leakage rates, higher reliability, and longer service intervals.

Proprietary qualified over-moulded XLPE internal power cable joint Internal joint eliminates the risk to the joint and provides a better electrical solution and performance.

带辅助冷却的推力轴承

改善冷却效果，提高平均故障间隔时间(MTBF)，延长机械密封寿命。

具备合格XLPE注塑接头技术的XLPE电缆绝缘系统采用经验证的长寿命XLPE电缆绝缘，配合整体均质注塑接头，可优化电气绝缘保护，并消除潜水泵电机的一种常见故障模式。

T3流体动力倾斜垫轴承(可选NiAlBr轴承壳体)

减少轴承磨损，在所有运行条件下提高效率和可靠性。

高质量密封

更低的泄漏率、更高的可靠性以及更长的维护间隔

专有合格的过模压XLPE内部电源电缆接头

内部接头消除了接头受损的风险，提供了更优的电气解决方案和性能。

A complete service solution完整的服务解决方案

U-flo have been designing submersible pumps and motors for over 70 years. Through field experience, research and development, we have continued to enhance our designs to offer state-of-the-art upgrades to existing submersible motors from any manufacturer. In addition to shop repairs and spare parts for submersible motors, our design upgrades can increase reliability and extend Mean Time Between Failure (MTBF) to improve the reliability of your operations.

尤孚设计潜水泵和电机已有超过70年的历史。凭借现场经验研发创新，我们持续优化设计，为任何制造商的现有潜水电机提供尖端升级方案。
除了潜水电机维修、备件供应外，我们的设计升级方案更能提升设备可靠性，延长平均故障间隔时间(MTBF)，从而全面提高运营可靠性。

We have the ability to perform root cause analysis on your submersible pumps and motors to make sure repairs will be effective in addressing the failure or degradation mechanisms occurring on your equipment. Our extensive experience, acquired over 70 years of submersible motor design, gives us the foundation to diagnose your pump or motor issue. Once the root cause is determined, we can make operational or design suggestions to eliminate the premature failures that can severely impact your operations.

我们具备对您的潜水泵和电机进行根本原因分析的能力，确保修复措施能有效解决设备发生的故障或性能退化机制。凭借70余年潜水电机设计积累的丰富经验，我们拥有诊断泵机问题的坚实基础。一旦确定根本原因，我们将提出运行或设计改进建议，以消除可能严重影响您运营的早期故障。

Ou-flo

联系我们

www.u-flo.cn

尤孚中国研发中心&水泵工厂 Water Pump Factory

ADD：南京市溧水经济开发区南区罗马工业园18号

No. 18, Rome Industrial Park, South District, Lishui Economic Development Zone, Nanjing TEL:(86)25-56610801/56610802/56610803/56610805/56610815 FAX:(86)25-56610806

尤孚中国智能系统工厂 Intelligent System Factory

ADD：南京市溧水经济开发区南区罗马工业园8号

No. 8, Rome Industrial Park, South District, Lishui Economic Development Zone, Nanjing TEL:(86)25-56610801/56610802/56610803/56610805/56610815 FAX:(86)25-56610806

营销服务热线：136-0519-1290 售后服务热线：187-5207-4080