Replacement Mechanical Seals for Lowara Pumps
Hong Teng supplies aftermarket replacement mechanical seals for selected Lowara vertical multistage, horizontal multistage, centrifugal and industrial pump applications.
Our available range includes different mechanical seal designs for selected Lowara SV, e-SV and other pump configurations, with multiple shaft sizes, stationary-seat designs and material options according to the pump model and operating conditions.
Browse the Lowara replacement seals currently listed below, or send us the complete pump model, nameplate, old seal photos and dimensions for identification.
Find a Lowara Mechanical Seal by Pump Series / Reference
Use the table below as a quick reference for Lowara replacement mechanical seals currently available from Hong Teng. Mechanical seal configuration can vary by pump series, motor power, shaft size and production version, so the complete pump model and existing seal should always be confirmed before ordering.
| Pump Series / Reference Models | Seal Reference | Size | Seal Type | Action |
|---|---|---|---|---|
| SV2 / SV4 | LOWARA-12-X | 12 mm | Single-Spring Seal | View Seal |
|
Selected SV / e-SV Applications 33SV · 46SV · 66SV · 92SV References |
LOWARA-22-X W-0220.822.E.S |
22 mm | Single-Spring Seal | View Seal |
| Selected Lowara SV Series | LOWARA-16L-X | 16 mm | Single-Spring Seal | View Seal |
| Selected Lowara Multistage Pumps | 8731851 | 12 / 16 mm | Component Mechanical Seal | View Seal |
| Selected Lowara Multistage Pumps | ROTEN 5-22-X | 22 mm | Single-Spring Seal | View Seal |
| Selected Lowara Multistage Pumps | 155B | 12 mm | Single-Spring Seal | View Seal |
Cannot find your Lowara seal in the table? Send us the pump model, nameplate, old seal photos and dimensions for identification →
All Lowara Replacement Mechanical Seals
Browse our currently available replacement mechanical seals for Lowara pump applications, including selected SV, e-SV, multistage and centrifugal pump configurations.
If the exact Lowara seal you need is not listed, send us the complete pump model, pump nameplate, old seal photos and dimensions for identification.
Compatibility varies by pump version and seal arrangement. Please confirm the pump model and existing seal before ordering.
Can’t Find Your Lowara Pump Model?
If you cannot find the exact Lowara seal you need, send us the pump model, nameplate, old seal photos and dimensions for identification.
Lowara Pump Families & Seal Configurations
Lowara pumps cover several vertical multistage, horizontal multistage and centrifugal pump families. Mechanical seal design can vary according to the pump family, size, motor power and operating configuration, so identifying the pump series is an important first step before matching the replacement seal.
VERTICAL MULTISTAGE
Lowara SV / e-SV Series
The SV and e-SV families are vertical multistage pumps widely used in water supply, pressure boosting and industrial systems. Mechanical seal construction varies across the range, so the complete pump size and motor configuration should be checked before selecting a replacement.
Reference groups: 1 / 3 / 5SV · 10 / 15 / 22SV · 33 / 46 / 66 / 92 / 125SV
HORIZONTAL MULTISTAGE
Lowara e-HM Series
The e-HM family uses a horizontal multistage centrifugal pump design for water supply, pressure boosting, industrial cleaning and other building-service or industrial applications. The range includes different compact and sleeve configurations equipped with mechanical seals.
Pump families: 1HM / 3HM / 5HM / 10HM / 15HM / 22HM
END-SUCTION CENTRIFUGAL
Lowara e-SH / SHE / SHS Series
Lowara end-suction centrifugal pump families use different mechanical seal sizes and material configurations according to the hydraulic size and operating duty. Pump model and seal dimensions should be checked together during replacement.
Identification priority: Pump model · Seal size · Existing seal · Materials
OTHER LOWARA PUMPS
Legacy & Other Lowara Configurations
Lowara has produced many additional centrifugal and multistage pump configurations over different product generations. For older or less common pumps, use the complete nameplate, seal reference, old seal sample and dimensions rather than relying only on the pump family name.
Recommended identification: Nameplate + old seal + complete dimensions
Why the Exact Lowara Model Matters
Even within the e-SV family, mechanical seal construction changes according to pump size and motor power. Two Lowara seals with the same shaft diameter may also use different stationary seats, working lengths or elastomers. Always use the complete pump designation together with the removed seal for final confirmation.
How to Identify the Correct Lowara Mechanical Seal
Lowara mechanical seals should be identified using the pump information, existing seal design and physical dimensions together. A shaft diameter or product photo alone is usually not enough to confirm the correct replacement.
01 Identify the Lowara Pump Series and Model
Record the complete Lowara pump model, product code and any suffixes shown on the nameplate. First determine whether the pump belongs to the SV / e-SV, e-HM, e-SH or another Lowara pump family.
02 Check the Existing Seal Design
Keep the complete removed mechanical seal and inspect both the rotating and stationary components. Look for any visible seal reference, part number, material code or dimensional marking.
03 Measure the Mechanical Seal
Measure the shaft or sleeve diameter, rotating seal dimensions, stationary-seat outside diameter and thickness, free length and working length. Similar-looking Lowara seals may not be interchangeable.
04 Confirm Materials and Operating Conditions
Check the seal-face materials, elastomer type, pumped liquid and operating temperature whenever possible. Material selection should match both the pump configuration and actual service conditions.
LOWARA SEAL IDENTIFICATION
Information to Send Us
For faster identification, provide as much of the following information as possible:
- Complete Lowara pump model
- Pump nameplate photo
- Pump product or serial number
- Photos of the complete old seal
- Rotating and stationary seal components
- Shaft or sleeve diameter
- Stationary-seat dimensions
- Seal free and working length
- Pumped medium and temperature
- Required quantity
Mechanical Seal Materials for Lowara Pumps
Mechanical seal materials vary according to the Lowara pump series, process fluid, temperature and operating conditions. The correct seal-face and elastomer combination should be confirmed from the pump specification and actual application.
STANDARD e-SV REFERENCE
Silicon Carbide / Carbon
Silicon carbide and resin-impregnated carbon are used as a standard mechanical seal face combination in Lowara e-SV configurations, providing a practical solution for many water and general pump applications.
Official e-SV reference: SiC rotating face · Carbon stationary face · EPDM elastomer
HARD-FACE OPTION
HARD-FACE OPTION
Silicon carbide / silicon carbide is available in selected Lowara e-SV mechanical seal configurations and may be used where a harder face pairing is required according to the pump specification and service conditions.
Selection depends on pump configuration, medium and operating conditions.
SECONDARY SEALS
EPDM, FKM & PTFE
Lowara mechanical seal configurations can use different secondary sealing materials. EPDM, FKM and PTFE are listed in e-SV seal configurations, with the correct choice depending on temperature, fluid compatibility and pump specification.
Do not substitute elastomer materials without checking chemical and temperature compatibility.
Material Selection Should Follow the Application
Do not select a Lowara replacement seal only by shaft size or face material. Confirm the pump model, existing seal specification, pumped medium, temperature and any chemical exposure before choosing the final material configuration.
- Pumped medium and concentration
- Operating temperature
- Pressure and pump duty
- Existing seal-face materials
- Existing elastomer material
- Cleaning or treatment chemicals
Related Lowara & Mechanical Seal Guides
Use these guides to identify the correct Lowara replacement seal, confirm dimensions and select suitable mechanical seal materials.
LOWARA SELECTION
How to Select a Replacement Mechanical Seal for Lowara Pumps
Learn how to combine the Lowara pump model, old seal, dimensions and operating conditions when selecting a replacement.
IDENTIFICATION
How to Identify the Correct Mechanical Seal for Your Pump
Review the pump data, seal design, dimensions, materials and photographs needed for reliable replacement identification.
MEASUREMENT
How to Measure a Mechanical Seal
Learn how to measure the shaft, rotating seal, stationary seat and working length before ordering a replacement.
MATERIAL SELECTION
Mechanical Seal Material Selection Guide
Compare seal-face, elastomer and metal materials according to fluid compatibility, temperature and operating conditions.
Frequently Asked Questions About Lowara Mechanical Seals
Find answers to common questions about identifying, selecting and replacing mechanical seals for Lowara pumps.
How do I identify the correct mechanical seal for a Lowara pump?
Start with the complete Lowara pump model and product code, then compare the existing mechanical seal and its dimensions. Shaft diameter, stationary-seat dimensions, free or working length, seal materials and clear photos of the removed components are especially useful for identification.
Do all Lowara SV and e-SV pumps use the same mechanical seal?
No. Mechanical seal configuration can vary by pump size, motor power and pump version. Lowara e-SV documentation shows different mechanical seal arrangements across the 1/3/5SV, 10/15/22SV and 33/46/66/92/125SV groups, so the complete model should always be checked.
Which Lowara pumps use a 22 mm mechanical seal?
A 22 mm replacement seal is commonly referenced for selected Lowara SV and e-SV applications, including aftermarket references for 33SV, 46SV, 66SV and 92SV configurations. Final compatibility should still be verified from the pump nameplate and removed seal.
Can two Lowara seals with the same shaft size be different?
Yes. Two seals can share the same shaft diameter but use different stationary seats, working lengths, spring arrangements or elastomers. Shaft size should therefore be treated as one identification dimension rather than the complete seal specification.
Can you identify a Lowara mechanical seal from photos and dimensions?
In many cases, yes. Send the complete pump model, nameplate, clear photos of the rotating and stationary seal components and all available dimensions. This information can significantly narrow down the correct replacement.
Are these original Lowara mechanical seals?
No. The products shown on this page are aftermarket replacement mechanical seals independently supplied by Hong Teng. Lowara, Xylem and other manufacturer names or reference numbers are used only to identify compatible applications.
If you are unsure which Lowara seal is installed in your pump, send us the pump model, nameplate, old seal photos and dimensions for identification.
Need Help Finding a Lowara Mechanical Seal?
Send us your Lowara pump model, pump nameplate, old seal photos or dimensions. We can help check the available replacement options and identify the information needed before quotation.
Lowara, Xylem and other manufacturer names or reference numbers are used only for compatibility identification. Replacement products are independently supplied by Hong Teng.
