KSB ETBY Series Thermal Oil Pumps
KSB ETBY Series Thermal Oil Pumps
KSB ETBY Series Thermal Oil Pumps | Etabloc SYT High Temperature Thermal Medium Circulation Pumps
The ETBY series is a direct-coupled volute pump from KSB's Etabloc SYT product line, specifically designed for heat transfer oil and hot water circulation systems. This series features horizontal/vertical installation, a back-drawn design, a single-stage single-suction structure, and performance compliant with EN 733 standards. As a new generation product in the KSB hot oil pump family, the ETBY series offers significant improvements in efficiency and reliability compared to the older SY series.
This pump features a direct-drive, bearingless design. The pump end is supported by a medium-lubricated carbon-graphite sliding bearing, while the drive end uses a grease-lubricated radial ball bearing. Combined with a mechanical seal, it achieves stable operation under high-temperature conditions. The impeller is customizable to meet different operating requirements. When used with a KSB SuPremE IE4/IE5 high-efficiency motor and a PumpDrive variable frequency drive system, significant energy savings can be achieved.
KSB ETBY Series Thermal Oil Pumps Model Description
The ETBY series adopts the KSB standard naming convention:
ETBY 065-050-160 SG DB082... B
Code Location Meaning
ETBY Pump Series Code (Etabloc SYT)
065 Nominal Suction Inlet Diameter DN 65 (mm)
050 Nominal Discharge Inlet Diameter DN 50 (mm)
160 Nominal Impeller Diameter (mm)
SG Pump Body Material (Ductile Cast Iron)
DB Sealing Type
B Design Version
Available Specifications:
Model Number | Inlet Diameter (DN) | Outlet Diameter (DN) | Impeller Diameter (mm)
ETBY 040-025-200 | 40 | 25 | 200
ETBY 050-032-160 | 50 | 32 | 160
ETBY 050-032-200 | 50 | 32 | 200
ETBY 050-040-200 | 50 | 40 | 200
ETBY 065-040-200 | 65 | 40 | 200
ETBY 065-050-160 | 65 | 50 | 160
ETBY 065-050-200 | 65 | 50 | 200
Note: Older SY series models are completely interchangeable with ETBY series models.
Core Technical Parameters
KSB ETBY Series Thermal Oil Pumps Parameter Item Specification Range
Maximum Flow Rate: 337 m³/h
Maximum Head: 99 m
Maximum Medium Temperature: 350 °C (Mineral and Synthetic Heat Transfer Oil)
Minimum Medium Temperature: -30 °C
Maximum Allowable Working Pressure: 16 bar (PN 16)
Power Frequency: 50 Hz / 60 Hz
Connection Method: Flange Connection (DIN/EN Standard)
Pump Body Material: Ductile Iron (JS1030 / 536 Gr. 60-40-18)
Impeller Material: Gray Cast Iron (JL1040) / Stainless Steel (1.4408 / CF8M)
Shaft Material: Chrome Steel (1.4021 + QTHRC50)
Bearings: Pump End: Carbon Graphite Sliding Bearing (Medium Lubricated) / Drive End: Grease Lubricated Deep Groove Ball Bearing
Seal: KSB Single-End Mechanical Seal / Tandem Double-End Mechanical Seal (Compliant with EN 12756)
Note: ETBY belongs to Etabloc The difference between the SYT product line and ETNY (Etanorm SYT) lies in their direct-drive structure
(the motor is directly connected to the pump body), while ETNY uses a coupling drive structure.
KSB ETBY Series Thermal Oil Pumps Product Features and Design Advantages
1. Direct-drive, Bearingless Design, Compact Structure
ETBY adopts a direct-drive structure, with the motor directly connected to the pump body, eliminating the need for couplings
and a common base. This results in a smaller footprint, lighter weight, and easier installation. The pump end uses a
medium-lubricated carbon graphite sliding bearing, eliminating the need for an additional oil circuit system.
2. Superior High-Temperature Resistance
Designed specifically for mineral and synthetic heat transfer oils, it can withstand media temperatures up to 350°C. An optimized
thermal barrier design effectively isolates high temperatures from the pump body to the motor, ensuring reliable motor operation
under high-temperature conditions.
3. High-Efficiency and Energy-Saving Drive System
Standard configuration includes a KSB SuPremE magnetless synchronous reluctance motor with IE4/IE5 energy efficiency rating.
Optional PumpDrive variable frequency speed control system enables precise control of flow and pressure, significantly reducing
energy consumption.
The impeller is dressable to meet various operating conditions.
4. Reliable Sealing System
Utilizes a KSB single-end mechanical seal conforming to EN 12756 standards, featuring multiple springs and a reliable venting
solution during operation.
Optional tandem double-end mechanical seal with a quench system is available for more demanding applications.
Centrifugal/annular profiles ensure reliable venting of leaks from the mechanical seal.
5. Convenient Maintenance
The back-pull design allows removal of the entire rotating component (impeller, shaft, bearings, seals) without disassembling
the pump casing. The casing can remain in the pipeline during maintenance, significantly reducing maintenance time and costs.
6. Flexible Configuration Options
Optional ATEX explosion-proof type (suitable for hazardous areas)
Optional DNV-GL classification society certification (marine engineering specifications)
KSB ETBY Series Thermal Oil Pumps Meets EN PN16 and ASME standards
Core Application Areas
ETBY series thermal oil pumps are mainly used in the following scenarios:
Application Areas | Typical Scenarios
Heat Transfer Systems | Thermal oil boilers, heat medium circulation, waste heat recovery
Hot Water Circulation | High-temperature hot water heating systems, district heating
Chemical/Petrochemical | Reactor heating, distillation tower reboiler heat medium transport
Textile Dyeing & Finishing | Stenter, dryer thermal oil circulation
Food Industry | Frying equipment, drying equipment hot oil circulation
Rubber & Plastics Industry | Injection molding machine, extruder heating systems
Road Construction Industry | Asphalt heating and insulation systems
Marine/Ocean Engineering | Marine thermal oil systems (DNV-GL certified version available)
Applicable Media
Mineral thermal oil, synthetic thermal oil, hot water (up to 180°C), other heat medium fluids
KSB ETBY Series Thermal Oil Pumps Product Advantages Summary
Advantages Explanation
✅ Original German KSB Quality: A century of pump industry technology accumulation, global brand reputation
✅ Direct-drive compact design: Saves installation space, no need for couplings or common bases
✅ Ultra-high temperature resistance: Can withstand up to 350°C for heat transfer oil
✅ IE4/IE5 ultra-high efficiency motor: Optional non-magnetic SuPremE motor, significant energy savings
✅ Variable frequency speed control optional: PumpDrive system achieves precise flow/pressure control
✅ Back-pull maintenance design: Quick maintenance, no need to disassemble pipelines
✅ Flexible configuration: ATEX, DNV-GL, multiple material options
✅ Reliable sealing system: Single-end/double-end mechanical seal + quench system
KSB ETBY Series Thermal Oil Pumps Selection Recommendations
Please select based on the following operating parameters:
Media Type: Mineral heat transfer oil / Synthetic heat transfer oil / Hot water (specify specific medium)
Operating temperature: Maximum/Minimum temperature (°C)
Operating pressure: Maximum system pressure (bar)
Flow rate requirement: Rated flow rate (m³/h)
Head requirement: Total head required (m)
Motor requirements: Voltage / Frequency / Variable frequency drive required / Explosion-proof (ATEX) required
Installation space: Horizontal / Vertical installation
Special certifications: Classification society certification required (DNV-GL)?
Why choose us? Authorized Channel: We guarantee 100% genuine KSB products.
In Stock: We maintain a large inventory of commonly used ETBY specifications (e.g., ETBY065-050-160, ETBY065-050-200, etc.)
Full Model Coverage: Complete range of sizes from DN 40 to DN 65
Fast Delivery: Standard specifications are shipped the same day; special configurations can be responded to quickly.
Professional Technical Support: We provide selection guidance, installation, commissioning, and after-sales service.
Important Note: This product is a genuine KSB German manufacturer. Please look for the KSB brand logo. Using non-original
substitutes may result in substandard performance, seal failure, and other safety hazards.
