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{"title":"PTFE Wedge Balanced Mechanical Seal , 59B Type John Crane Mechanical Seal","imgUrl":"https:\/\/img.chinax.com\/nimg\/cb\/fa\/b6ef7558b7a28360974a7c442f80-200x200-1\/ptfe_wedge_balanced_mechanical_seal_2c_59b_type_john_crane_mechanical_seal.jpg","attrs":{"Brand Name":"JG","Model Number":"59B","Certification":"FDA certificate","Place of Origin":"Zhejiang, China"}}
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{"title":"PTFE Wedge Balanced Mechanical Seal John Cran 59B High Pressure Type","imgUrl":"https:\/\/img.chinax.com\/nimg\/cb\/fa\/b6ef7558b7a28360974a7c442f80-200x200-1\/ptfe_wedge_balanced_mechanical_seal_john_cran_59b_high_pressure_type.jpg","attrs":{"Brand Name":"JG","Model Number":"59B","Certification":"FDA certificate","Place of Origin":"Zhejiang, China"}}
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
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1992
Total Annual:
10milion-15milion
Employee Number:
80~100
Ecer Certification：
Verified Supplier
JIAXING BURGMANN is a professional manufacturer of mechanical seal for pump and autoclave used in the mining, industry, agriculture, flange, rubber ring, bushing, hard alloy and Sic. We are specialized in producing Burgmann series seals.
We have over 20 years production experience, wit... JIAXING BURGMANN is a professional manufacturer of mechanical seal for pump and autoclave used in the mining, industry, agriculture, flange, rubber ring, bushing, hard alloy and Sic. We are specialized in producing Burgmann series seals.
We have over 20 years production experience, wit...
