Allweiler® TECFLOW Pump Parts
Replacement rotors, stators, hollow shafts, coupling rods, universal-joint components, seals, packing and related parts for supported Allweiler® TECFLOW and AEB1L progressing cavity pumps.
TECFLOW uses a compact block construction with 2:3 long rotor/stator geometry. Identification requires the complete size and type code because flange, branch, seal, material and design-option codes affect the installed pump.
TECFLOW and AEB1L Replacement Components
The TECFLOW AEB1L is a close-coupled block-design progressing cavity pump. Its 2:3 long rotor/stator geometry forms three sealing lines in cross section, creating continuous low-pulsation cavities as the rotor turns.
The motor, geared motor or variable-speed drive uses reinforced bearings that carry the pump’s generated axial loads. Torque is transmitted through the drive connection to the hollow shaft, coupling rod and rotor. Encapsulated pin joints accommodate the rotor’s eccentric movement.
Published TECFLOW Size Families
The size designation represents the theoretical flow in liters per minute at 400 rpm and zero differential pressure. Actual capacity depends on speed, pressure, fluid and wear condition.
TECFLOW Replacement Components
Rotors
Replacement rotors reviewed for TECFLOW size, 2:3 geometry, base material, surface treatment, dimensions and service.
Stators
Replacement stators selected around complete type code, size, elastomer, geometry, fluid and operating conditions.
Hollow Shafts
Drive components confirmed by size, clamp-set connection, dimensions, material and mating drive construction.
Coupling Rods
Torque-transmission components reviewed with both encapsulated pin-joint assemblies.
Universal-Joint Parts
Pins, bushes, guide bushes, retaining sleeves, cover sleeves, clamps, oil and related wear parts.
Clamp Sets and Brackets
Drive-connection and motor-bracket components evaluated around the installed block-design assembly.
Mechanical Seals
Single mechanical seals and associated housings, pins and elastomers for supported arrangements.
Gland Packing Parts
Packing, gland, housing, flushing ring, lantern ring and related static sealing components.
Casing and Static Seals
Suction and discharge casing parts, stator-end seals, O-rings, plugs and fastening components.
TECFLOW Type-Code Information
| Type-Code Position | Information | Published Direction |
|---|---|---|
| Series | TECFLOW | Progressing cavity pump family |
| Size | 51 through 5001 | Theoretical delivery designation |
| Connections | DIN, ANSI, JIS or documented special construction | Affects casing and installation fit |
| Branch position | Positions 1, 2, 3 or 4 where permitted | Identifies suction/discharge orientation |
| Shaft seal design | Packing or mechanical seal | Determines seal housing and wear components |
| Seal construction | Standard packing, flushing ring, lantern ring or single mechanical seal | Separates installed sealing arrangements |
| Design options | Surface treatment, adjustable stator or thermal dry-run protection where applicable | Affects rotor, stator and monitoring requirements |
| Rotor and stator materials | Encoded material selections | Supports corrosion, abrasion and chemical compatibility |
Published Family Performance Envelope
These family-level values are for preliminary orientation and are not universal limits for every size, material or installed configuration.
| Parameter | Published Family Value |
|---|---|
| Capacity | Up to 2,700 L/min |
| Differential pressure | Up to 4 bar for the published single-stage family |
| Pump outlet pressure | Up to 16 bar, subject to complete application and configuration |
| Fluid temperature | Up to 100°C depending on fluid and elastomers |
| Viscosity | Up to 200,000 mPa·s depending on size, speed and fluid |
| Solids content | Up to 60% by volume depending on application |
Useful Sectional-Drawing References
These references identify positions within TECFLOW documentation; they are not sufficient standalone ordering numbers.
| Drawing Part No. | Component | Identification Notes |
|---|---|---|
| 122 | Motor bracket | Confirm drive and pump size |
| 123 | Clamp set | Confirm shaft and drive connection |
| 125 | Hollow shaft | Confirm size, dimensions and material |
| 203 | Gland | Confirm packing construction |
| 204 | Gland housing | Confirm size and installed arrangement |
| 207 | Gland packing | Confirm shaft and stuffing-box dimensions |
| 208 | Flushing ring | Used with applicable packing construction |
| 209 | Lantern ring | Confirm internal or external arrangement |
| 214 | Mechanical seal housing | Confirm seal and pump size |
| 219 | Mechanical seal | Confirm shaft size, faces and elastomers |
| 220 | Retaining pin | Confirm seal construction |
| 301 | Coupling rod pin | Inspect mating bushes and sleeves |
| 302 | Coupling rod bush | Inspect pin and joint clearance |
| 307 | Coupling rod | Confirm length, ends and material |
| 401 | Rotor | Confirm size, geometry and surface |
| 402 | Stator | Confirm size, geometry and elastomer |
Rotor, Stator and Seal Materials
Rotor Direction
Published constructions include wear-resistant alloy and stainless-steel directions with available hard surface treatments.
Stator Direction
Published TECFLOW options include NBR and CSM families, with final material selected for the complete fluid and temperature.
Seal Direction
Packing and mechanical-seal materials must be confirmed around shaft size, fluid chemistry, solids, temperature and pressure.
How to Request TECFLOW Parts
Provide TECFLOW or AEB1L, size and every available construction code.
State rotor, stator, hollow shaft, coupling rod, joint item, seal, packing or casing part.
Include the complete block arrangement, connections, joints, seal housing and markings.
Provide overall, shaft, joint, seal, connection and component measurements.
Include fluid, viscosity, solids, temperature, pressure, speed and material requirements.
Frequently Asked Questions
Are TECFLOW and AEB1L the same pump family?
Current manufacturer material identifies the compact block-design family as TECFLOW AEB1L. The complete installed type code should be used for replacement identification.
What is different about TECFLOW rotor/stator geometry?
The family uses a 2:3 long geometry, creating three sealing lines in cross section and a compact, low-pulsation pumping element.
What TECFLOW sizes are published?
The published family includes 51, 101, 201, 381, 551, 751, 1001, 1451, 2701 and 5001.
Does the size number equal actual operating flow?
No. It represents theoretical delivery at 400 rpm and zero differential pressure. Actual flow depends on speed, pressure, fluid and condition.
What TECFLOW parts can ACCA evaluate?
Supported components may include rotors, stators, hollow shafts, coupling rods, joint parts, clamp sets, brackets, seals, packing and casing-related parts.
Can ACCA support TECFLOW 551, 2701 or 5001?
These are published family sizes. Component availability must be confirmed from the complete type code, requested part, dimensions and service conditions.
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Request Allweiler® TECFLOW Pump Parts
Send the complete TECFLOW or AEB1L type code, required component, photographs, dimensions and operating conditions. ACCA will review the information needed to confirm a supported replacement.
Complete pump type
Component required
Drawing reference, when available
Clear photographs
Critical dimensions
Fluid and viscosity
Temperature and solids
Differential pressure and speed
Material and seal requirements
Wear or failure history
Trademark Disclaimer: Allweiler® is a registered trademark of its respective owner. References to Allweiler® are used solely to identify compatible equipment. ACCA Pumps is an independent aftermarket manufacturer and is not affiliated with or endorsed by the trademark owner. Read the full disclaimer.