Looking for a Burgmann M32/55 mechanical seal or a direct EagleBurgmann M32/55 replacement? Our MIAOYU M3255 series is a 100% dimensionally interchangeable equivalent to the original EagleBurgmann M3 series (M3N/M32/M37N, including the M32/55 compact version). Designed for water pumps, sewage pumps and light industrial centrifugal pumps, this Burgmann type M32 mechanical seal replacement delivers OEM-grade performance at a fraction of the cost. As a Burgmann M32/55 replacement manufacturer in China, we offer custom mechanical seal factory direct price, OEM/ODM support and full material options.
Key Features
• Compact Duty: Specialized variant of the Burgmann M3 series – direct equivalent to EagleBurgmann M32/55 for pump housings with limited axial space.
• Reliable Performance: Self-cleaning conical spring transmits torque without drive pins – same configuration as original Burgmann M32 mechanical seal.
• Economic Solution: Cost-effective Burgmann type M32 replacement at factory direct price, fully interchangeable with OEM dimensions per DIN/EN standards.
• Optimized Spring Rate: The spring design is tuned to provide adequate face loading in a shorter compressed length, ensuring a tight seal without excessive face wear.
• Shaft Protection: Rubber bellows interference fit protects shaft sleeve from corrosion and wear – ideal for mechanical seal for water pump and sewage pump applications where media cleanliness varies.
• Factory Direct Pricing:As a Burgmann M3255 replacement manufacturer in China, we supply this Burgmann type M32 mechanical seal replacement at competitive custom mechanical seal factory direct price. Save 30-50% vs. OEM without compromising quality.
At NINGBO MIAOYU, we understand that every application is unique. We provide flexible customization options to meet your specific operational requirements:
Material Selection: Choose from a wide range of materials for seal faces (Carbon, SiC, TC) and secondary seals (NBR, EPDM, FKM/Viton, PTFE) to handle various temperatures and chemical compatibilities.
OEM/ODM Services: We offer comprehensive OEM and ODM support. Whether you need specific branding, custom packaging, or modifications to the standard dimensions, our engineering team can deliver a tailored solution.
Direction of Rotation: Available in both left-hand (L) and right-hand (R) rotation to match your pump's specific drive requirements.
The versatility of the Burgmann mechanical sealM32/55 makes it suitable for a vast array of applications across multiple industries:
Water & Wastewater: Ideal for clean water pumps, sewage pumps, and submersible pumps due to its self-cleaning spring design.
Chemical Processing: Suitable for handling oil and weakly-corrosive mediums in chemical standard pumps.
General Industry: Widely used in circulation pumps, booster pumps, and process pumps from leading OEMs like KSB, Grundfos, and Allweiler.
Company Advantages
Choosing NINGBO MIAOYU as your supplier for Burgmann M32/55 mechanical seals offers distinct benefits that set us apart from the competition:
Cost-Effective Excellence: By leveraging our advanced manufacturing capabilities in China, we provide seals that match the performance of the original OEM parts at a significantly lower price point.
ISO-Certified Quality: Our production processes are strictly controlled under the ISO 9001:2015 quality management system, ensuring every seal meets high-precision standards.
Fast Lead Times: We maintain a large inventory of standard sizes and utilize efficient logistics to ensure rapid delivery, helping you reduce Mean Time To Repair (MTTR).
Expert Technical Support: Our team of experienced engineers is available to provide technical consultation, helping you select the right material combination for your specific application.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤1.4MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 120℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤15m/s | Spring and Metal Part | Stainless Steel |


Product Specifications
| D1 (inch) | Size Code | D1 (mm) | Size Code | D3 | D7 | L1 | L4 |
| 0.500 | 0127 | 12 | 0120 | 25.00 | 27.79 | 44.00 | 8.74 |
| 14 | 0140 | 29.00 | 30.95 | 44.00 | 10.32 | ||
| 0.625 | 0158 | 16 | 0160 | 29.00 | 30.95 | 44.00 | 10.32 |
| 0.750 | 0191 | 18 | 0180 | 32.00 | 34.15 | 44.00 | 10.32 |
| 20 | 0200 | 33.00 | 35.70 | 44.00 | 10.32 | ||
| 0.875 | 0222 | 22 | 0220 | 35.00 | 37.30 | 44.00 | 10.32 |
| 24 | 0240 | 38.00 | 40.50 | 44.00 | 10.32 | ||
| 1.000 | 0254 | 25 | 0250 | 38.00 | 40.50 | 44.00 | 10.32 |
| 1.125 | 0286 | 28 | 0280 | 46.00 | 47.63 | 60.00 | 11.99 |
| 30 | 0300 | 49.00 | 50.80 | 60.00 | 11.99 | ||
| 1.250 | 0317 | 32 | 0320 | 49.00 | 50.80 | 60.00 | 11.99 |
| 33 | 0330 | 52.00 | 53.98 | 60.00 | 11.99 | ||
| 1.375 | 0349 | 35 | 0350 | 52.00 | 53.98 | 60.00 | 11.99 |
| 1.500 | 0381 | 38 | 0380 | 56.00 | 57.15 | 60.00 | 11.99 |
| 1.625 | 0412 | 40 | 0400 | 59.00 | 60.35 | 60.00 | 11.99 |
| 43 | 0430 | 62.00 | 63.50 | 71.00 | 11.99 | ||
| 1.750 | 0444 | 45 | 0450 | 62.00 | 63.50 | 71.00 | 11.99 |
| 1.875 | 0476 | 48 | 0480 | 65.00 | 66.70 | 71.00 | 11.99 |
| 2.000 | 0508 | 50 | 0500 | 68.00 | 69.85 | 71.00 | 13.50 |
| 2.125 | 0539 | 53 | 0530 | 71.00 | 73.05 | 71.00 | 13.50 |
| 2.250 | 0571 | 55 | 0550 | 75.00 | 76.20 | 71.00 | 13.50 |
| 2.375 | 0603 | 60 | 0600 | 78.00 | 79.40 | 71.00 | 13.50 |
| 2.500 | 0635 | 63 | 0630 | 81.00 | 82.55 | 71.00 | 13.50 |
| 2.625 | 0666 | 65 | 0650 | 86.00 | 92.10 | 71.00 | 15.90 |
| 2.750 | 0698 | 70 | 0700 | 89.00 | 95.25 | 70.00 | 15.90 |
| 2.875 | 0730 | 73 | 0730 | 92.00 | 98.45 | 73.00 | 15.90 |
| 3.000 | 0762 | 75 | 0750 | 95.00 | 101.65 | 73.00 | 15.90 |
Workshop
This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.




Product Research, Development and Testing
Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.




Industry Solutions




Case Study
Domestic Booster: A residential pressure booster pump failed. The OEM seal was unavailable separately. We identified it as an M3255 type. The replacement fit the tight housing perfectly, saving the homeowner from buying a new pump.
Testimonials
Hard to find these specific M3 variants sometimes. Glad you stock the M32/55. It's a lifesaver for older pumps.
—Plumbing Supply Wholesaler, Spain
FAQs
Q: How do I know if I need M32/55 or standard M3?
A: Measure the installed working length (L1k) of your old seal. M3255 has a specific short length compared to the standard M3N. Check our dimension chart to confirm.
Q: Do you supply Burgmann M3255 replacement as a manufacturer in China with factory direct price?
A: Yes. MIAOYU is an ISO 9001 certified Burgmann M3255 replacement manufacturer in China. We sell directly to distributors, OEMs and end-users at factory direct prices – no middleman markup. Minimum order quantity is flexible. OEM/private label packaging available.
Q: Can I use this Burgmann M32 mechanical seal replacement for sewage or dirty water?
A: Yes. The conical spring design is self-cleaning and resistant to clogging, making it well-suited for sewage and wastewater applications. For heavily abrasive media, we recommend upgrading to Silicon Carbide vs. Silicon Carbide faces with Viton bellows.
Q: What shaft sizes and materials are available for the Burgmann M3255 replacement?
A: We stock shaft sizes from 6 mm to 80 mm (1/4" to 3.15"). Standard material is Carbon vs. Ceramic with NBR rubber bellows. Optional upgrades include Silicon Carbide (SiC) faces, Tungsten Carbide (TC) faces, and Viton/EPDM/Kalrez elastomers. Contact us for custom mechanical seal factory direct price on non-standard sizes.

Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
Mobile: +86-18758835650
WhatsApp: +86-18758835650
Add: No8-2, Jinsha road Yuelin Street, Fenghua District, Ningbo, Zhejiang