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Premium Mechanical Seals & Replacement Solutions

Since 1983, NINGBO BETON has been a trusted ISO9001-certified manufacturer of high-performance mechanical seals and OEM replacements for John Crane, Burgmann, AES, and other leading brands.

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About BETON Mechanical Seal Factory

Founded in 1983, NINGBO BETON MECHANICAL SEAL FACTORY is a high-tech enterprise specializing in the design and manufacturing of all types of mechanical seals and filtration components. With over four decades of experience, we deliver reliable sealing solutions for demanding industrial applications.

In 2001, we achieved ISO9001 international quality certification, affirming our commitment to excellence in every product we manufacture. Our comprehensive range includes O-ring seals, rubber bellow seals, PTFE wedge seals, metal bellow seals, cartridge seals, and custom OEM solutions.

1983
Founded
2001
ISO9001 Certified
BETON Factory Scene

Our Premium Mechanical Seals

Engineered for durability and performance, our mechanical seals are designed to replace leading brands including John Crane, Burgmann, AES, Roten, Sterling, Flowserve, and Vulcan.

BSG6/606 Mechanical Seal

BSG6/606

O-Ring Type Mechanical Seal

  • Materials: SiC/SiC, TC/TC, Carbon/Ceramic
  • Elastomer: NBR, EPDM, Viton
  • Max Temp: 180°C
  • Pressure: Up to 2.5 MPa
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BS24S Mechanical Seal

BS24S

Cartridge Seal

  • Pre-assembled for easy installation
  • Materials: SiC/SiC, TC/TC
  • Elastomer: Viton, EPDM
  • For centrifugal pumps
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BSBO Mechanical Seal

BSBO

Rubber Bellow Seal

  • Flexible bellow design
  • Resistant to misalignment
  • Materials: Carbon/Ceramic, SiC/SiC
  • Elastomer: NBR, EPDM
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BSBS Mechanical Seal

BSBS

Metal Bellow Seal

  • No O-ring, high reliability
  • Temperature: -20°C to 400°C
  • Materials: TC/TC, SiC/SiC
  • Corrosion-resistant alloys
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BS12/12D Mechanical Seal

BS12/12D

O-Ring Seal

  • Double seal configuration
  • For high-pressure applications
  • Materials: Carbon/Ceramic
  • Elastomer: Viton
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BSBC Mechanical Seal

BSBC

PTFE Wedge Seal

  • Chemically inert PTFE bellows
  • Excellent corrosion resistance
  • Temperature: -30°C to 200°C
  • For aggressive media
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BSG9 Mechanical Seal

BSG9

Cartridge Seal

  • Compact design
  • For small pumps
  • Materials: SiC/SiC, TC/TC
  • Easy installation
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BSG16 Mechanical Seal

BSG16

O-Ring Type Seal

  • Heavy-duty construction
  • For industrial pumps
  • Materials: TC/TC, SiC/SiC
  • High pressure & temperature
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Why Choose BETON Seals?

Precision engineering, premium materials, and decades of expertise ensure unmatched reliability and performance.

ISO9001 Certified

Quality assured through international standards and rigorous testing protocols.

OEM Replacement

Direct replacements for John Crane, Burgmann, AES, and other major brands.

Advanced Materials

Silicon carbide, tungsten carbide, ceramics, and specialty elastomers.

Global Export

Trusted by industrial clients worldwide with dedicated export support.

40+
Years Experience
1983
Founded
2001
ISO9001 Certified
50+
Countries Served

Frequently Asked Questions

Find answers to common inquiries about our mechanical seals and services.

We manufacture a wide range of mechanical seals including O-ring seals, rubber bellow seals, PTFE wedge seals, metal bellow seals, cartridge seals, and custom OEM seals. Our products are designed for centrifugal pumps, mixers, compressors, and other industrial equipment.

Yes, our mechanical seals are engineered as direct replacements for John Crane, Burgmann, AES, Roten, Sterling, Flowserve, and Vulcan models. We provide cross-reference lists and technical support to ensure proper compatibility.

Seal face materials include silicon carbide (SiC), tungsten carbide (TC), ceramic, and carbon. Elastomers include NBR, EPDM, Viton, and PTFE. We offer comprehensive material combinations to suit various media, temperatures, and pressures.

Yes, we specialize in OEM mechanical seal design and manufacturing. Our engineering team can develop custom solutions based on your specifications, drawings, or sample seals. We support low and high-volume production runs.

Standard products are typically shipped within 7–15 days. Custom OEM seals may require 2–4 weeks depending on complexity. We offer expedited production and global shipping options. Contact us for specific lead times.

Get in Touch

For product inquiries, technical support, or custom OEM solutions, contact our team today.

Domestic Department

Tel: 0086-18957851020

Fax: 0086-0574-87757648

Export Department

Tel: 0086-0574-87754078

Fax: 086-0574-88124050

Email: sales@btseal.com

Address: No 128, Chunguang Road, Yinzhou District, Zhejiang, China

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