NTTPublished family designation. Pump size, impeller, materials, seal and drive complete the order configuration.
Enquire with this reference →ALLWEILERNTTThermal-oil centrifugal pump
ALLWEILER · Product family
ALLWEILER Thermal-oil centrifugal pump NTT for Organic heat-transfer oil circulation
ALLWEILER NTT is a baseplate-mounted centrifugal pump family for circulating organic heat-transfer oil. Its thermal-barrier, bearing and shaft-seal arrangement is intended to keep serviceable components away from the highest liquid temperature.
Maximum family flow1,250 m³/h
Maximum delivery head145 m
Maximum outlet pressure16 bar
EXPLORE THIS PRODUCT DOSSIER
Product, engineering and service information in one place
ENGINEERING DATA
Technical specifications
Published family limits are independent maxima and do not describe one simultaneous operating point.
| Parameter | Published reference |
|---|---|
| Maximum family flow | 1,250 m³/h |
| Maximum delivery head | 145 m |
| Maximum outlet pressure | 16 bar |
| Maximum fluid temperature | 350 °C |
| Installation | Baseplate / process design; dimensions according to DIN EN 733 |
IDENTIFY THE RIGHT BUILD
Models & configuration
A family or hydraulic size is the starting reference. Include the complete nameplate designation, serial number, materials, seals, drive and connection details when ordering.
Materials & performance
The source defines a thermal-oil pump family rather than one universal material and seal code. Confirm casing, impeller, shaft seal, bearing and connection execution from the selected designation.
Provide the oil grade, operating and start-up temperature, circulation flow, system head and suction pressure. Confirm the actual curve, seal arrangement and motor at the selected operating point.
DFIN reviews the operating point together with the suction condition and drive. Supply the fluid properties at both start-up and normal operation so the proposed arrangement can be checked against the appropriate curve.
Application industries
DFIN application links identify duties to discuss, subject to the specified fluid and complete pump configuration.
Typical duties to review
- Organic heat-transfer oil circulation
- Industrial heating and drying systems
- Thermal-oil service for chemical, polymer, food-equipment and other process plants
The NTT pump circulates heat-transfer oil in a process heating system. A food-industry application does not mean the thermal oil contacts the food or that the pump has food-contact certification.
Compatible parts & service
Use the complete type designation and serial number to identify the shaft seal, bearings, impeller, shaft, casing wear components and gaskets.
For a replacement, send the nameplate, existing duty point, connection dimensions and photographs of the installed baseplate and coupling arrangement.
Maintenance planning
Use the selected model’s operating manual for isolation, draining, inspection and reassembly. Report leakage, unusual noise, loss of output or visible wear with photographs and the operating history. DFIN can use the equipment identity and drawing positions to prepare a parts enquiry.
Request matching service parts →DFIN KNOWLEDGE BASE
DFIN technical notes for NTT
Shanghai Dfin Pump Co., Ltd. has reorganised the available product facts into practical notes for identification, selection, application review and maintenance planning. These notes support an initial comparison; the final duty point and order code still require project-specific confirmation.
PERFORMANCE NOTE
NTT: how to read the operating range
Maximum family flow: 1,250 m³/h; Maximum delivery head: 145 m; Maximum outlet pressure: 16 bar; Maximum fluid temperature: 350 °C. These figures describe the documented family or model reference; the usable duty point must be checked against speed, liquid properties, suction conditions and the selected drive.
MODEL IDENTIFICATION
NTT: model and configuration checklist
Identification references include NTT. Use the complete nameplate designation, serial number, connection, materials, seal arrangement and drive details when requesting a replacement or quotation.
APPLICATION REVIEW
NTT: materials and suitable duties
The source defines a thermal-oil pump family rather than one universal material and seal code. Confirm casing, impeller, shaft seal, bearing and connection execution from the selected designation. Typical duties to review include Organic heat-transfer oil circulation, Industrial heating and drying systems, Thermal-oil service for chemical, polymer, food-equipment and other process plants. Provide the oil grade, operating and start-up temperature, circulation flow, system head and suction pressure. Confirm the actual curve, seal arrangement and motor at the selected operating point.
SERVICE PLANNING
NTT: maintenance and spare-parts preparation
Use the complete type designation and serial number to identify the shaft seal, bearings, impeller, shaft, casing wear components and gaskets. Isolate the equipment, follow the applicable maintenance procedure and confirm every replacement item against the installed configuration before ordering.
PRODUCT & ENGINEERING FAQ
Questions about ALLWEILER NTT
Use these answers to prepare a technically complete comparison and enquiry.
How should ALLWEILER NTT be selected?
Start with the real duty point: fluid, flow, differential pressure or head, temperature, viscosity, solids, suction condition and operating pattern. DFIN then reviews size, materials, sealing and drive.
Are the listed maximum values a guaranteed operating point?
No. They describe independent catalog boundaries for the family or model. The selected point must be checked against the applicable curve, size, speed, fluid and drive arrangement.
What information confirms the complete model code?
Provide the full nameplate designation and serial number plus materials, seal arrangement, ports, drive, motor supply and any special option. A family name alone is not an order code.
Can DFIN help identify service parts?
Yes. Send the equipment identity, drawing position, existing part code, photographs, material and failure description. DFIN can prepare a parts enquiry matched to the installed configuration.
What should be included in the quotation request?
Include quantity, fluid data, operating point, installation, connection standard, available utilities, hazardous-area requirements and delivery destination. For a replacement, include the nameplate and current drawing.
SHANGHAI DFIN PUMP CO., LTD.
Turn this reference into a clear quotation.
Send the full model and serial number, quantity, fluid, required flow and pressure, temperature, viscosity, installation details and delivery destination. For a replacement, attach the nameplate and existing drawing.
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