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Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch
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Mechanical Seals For Sewage Pumps

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Mechanical Seals For Sewage Pumps

Payment Terms : T/T,Western Union,MoneyGram

Supply Ability : 1000PCS

HS code : 8484200090

MOQ : 1pcs

Delivery Time : 3~10DAYS

Speeds : Up to 20 m/s (66 ft/s)

Price : USD

Metal parts : SS304,SS316,904L, Titan

Packaging Details : white box

Certification : FDA certificate

Pressure : up to 4Mpa

Place of Origin : Zhejiang, China

Temperature : -50 °C to +220 °C (-58 °F to +428 °F)

Brand Name : JG

Size : 14 mm – 100 mm (0.55 in – 3.93 in)

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Mechanical Seals For Sewage Pumps
If you are looking for a high-performance, cost-effective industrial sealing solution, our engineered mechanical seals for sewage pumps deliver unmatched reliability. Designed and manufactured strictly to DIN 24960 and EN 12756 international standards, these shaft seals serve as a direct aftermarket alternative for Burgmann M7N and M74N series seals. By combining precision-machined stainless steel housings with high-grade carbon, silicon carbide, or tungsten carbide sealing faces, our mechanical seals for sewage pumps ensure zero-leakage operation in harsh, solid-laden wastewater, municipal effluent, and abrasive slurry applications.
Technical Specifications & Operating Limits
Engineered with a wave spring and multiple spring drive mechanism, these shaft sealing assemblies handle demanding hydraulic pressure and abrasive media without compromising component life.
Specification Parameter Technical Standard / Metric Operational Details
Design Type Single Seal, Unbalanced, Independent Direction of Rotation Direct replacement for Burgmann M7N/M74N
Shaft Diameter (d₁) 14 mm - 100 mm (0.55 in - 3.93 in) Fits standard metric pump shafts
Operating Pressure (p₁) Up to 2.5 MPa (25 bar / 362 PSI) Robust hydraulic pressure rating
Temperature Range (t) -50 °C to +220 °C (-58 °F to +428 °F) Dependent on elastomer choice
Sliding Speed (vg) Up to 20 m/s (66 ft/s) High-speed centrifugal pump capability
Seal Face Combinations Silicon Carbide (SiC), Carbon Graphite, Tungsten Carbide Customized for abrasive liquid resistance
Secondary Seals Viton (FKM), EPDM, NBR, FFKM High chemical & fluid compatibility
Industry Standards DIN 24960, EN 12756, ISO 3069 Full OEM dimensional compatibility
Key Advantages and Industrial Applications
Choosing our premium mechanical seals for sewage pumps guarantees smooth equipment operation and significantly reduced maintenance overhead. Key advantages and applications include:
  • 100% Dimensional Interchangeability: Direct drop-in fit into existing pump stuffing boxes and seal chambers without requiring shaft or housing modifications.
  • Clog-Resistant Spring Construction: Features a self-cleaning multiple spring design that prevents solid build-up, maintaining uniform seal face loading even in heavy slurry.
  • Superior Anti-Corrosion Protection: Manufactured with AISI 304/316 stainless steel hardware to resist severe chemical corrosion and fluid erosion.
  • Enhanced Hydraulic Sealing: Precision lap-finished seal faces create a micro-thin lubricant film, minimizing heat generation, friction, and fluid loss.
  • Municipal Wastewater Treatment: Widely used in raw sewage lift stations, influent pumps, and grit chamber pumping units.
  • Industrial Effluent Handling: Highly effective in textile, paper mill, and chemical plant wastewater transfer systems.
  • Submersible & Slurry Pumping: Ideal for heavy-duty submersible wastewater pumps, drainage pumps, and sump pumps dealing with fibrous media.
Product Questions & Answers
Why are these mechanical seals for sewage pumps ideal for wastewater handling?
Our mechanical seals for sewage pumps utilize abrasion-resistant silicon carbide faces and non-clogging spring mechanisms, preventing solids from jamming the seal faces and ensuring continuous operation in dirty liquids.
Are these mechanical seals for sewage pumps compatible with original Burgmann M7N housings?
Yes, every unit is manufactured strictly in compliance with DIN 24960 / EN 12756 standards, making our mechanical seals for sewage pumps 100% dimensionally identical to Burgmann M7N and M74N models.
What sealing face materials should be chosen for fibrous and gritty wastewater?
For fluid containing sand, grit, or suspended fibers, we strongly recommend Silicon Carbide vs. Silicon Carbide (SiC/SiC) faces to maximize hardness and prevent premature surface scoring.
Can these mechanical seals for sewage pumps handle bidirectional shaft rotation?
Yes, the M7N-style drive mechanism operates independently of the direction of rotation, making these seals suitable for both clockwise and counter-clockwise pump operations.

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