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LM Seals

Precision Mechanical Seals for Industrial & Pump Applications
OEM Solutions | Flygt & Grundfos Replacements | Global Shipments

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About LM Seals

Formerly known as Ningbo Liming Mechanical Seal Factory, Fenghua Xingong Seal Factory has been a trusted designer and manufacturer of mechanical seals since 2001. Located in Ningbo, Zhejiang Province, China, we are one of the largest professional producers of various styles of mechanical pump seals.

Our products include elastomer bellow seals, cartridge seals, metal bellow seals, PTFE wedge seals, and specialized replacements for Flygt and Grundfos pumps. All seals are engineered to be interchangeable with leading brands such as John Crane, Burgmann, Chesterton, Flowserve, and Fristam.

2001
Founded
50+
Countries Served
LM Seals Factory

Our Product Range

We manufacture a wide range of mechanical seals for industrial, electronic, and OEM applications with precision engineering and durable materials.

Elastomer Bellow Seals

Cartridge Seals

Metal Bellow Seals

Flygt Pump Seals

Grundfos Replacements

O-Ring Seals

PTFE Wedge Seals

OEM Solutions

Featured Mechanical Seals

XGWB2 Mechanical Seal

XGWB2

High-performance mechanical seal with elastomer bellow design, suitable for aggressive chemical environments and high-pressure applications.

  • Interchangeable with Burgmann Type 2
  • Max Pressure: 2.5 MPa
  • Temp Range: -20°C to +180°C
XGBIA Seal

XGBIA

Compact cartridge seal ideal for electronic pumps and small industrial applications requiring low leakage and long service life.

  • Direct replacement for AES models
  • Spring-loaded design
  • Corrosion-resistant materials
XG700 Seal

XG700

Heavy-duty mechanical seal for industrial pumps, designed for continuous operation in harsh environments.

  • Compatible with Flowserve 700 series
  • Dual spring configuration
  • High thermal stability
XG560D Seal

XG560D

Double mechanical seal with advanced sealing faces for critical applications requiring zero leakage.

  • Meets API 682 standards
  • Plan 53B compatible
  • For high-pressure slurry pumps
XG2 Seal

XG2

Standard single spring mechanical seal for general industrial use, cost-effective and reliable.

  • Interchangeable with John Crane 2
  • Wide temperature tolerance
  • Easy installation
XG1527 Seal

XG1527

Specialized seal for wastewater treatment pumps, resistant to abrasion and clogging.

  • Flygt 1527 replacement
  • Enhanced wear resistance
  • Optimized for solids handling
XGH7N Seal

XGH7N

High-temperature mechanical seal with ceramic components for thermal stability.

  • Up to 250°C operation
  • SIC/SiC face combination
  • For boiler feed pumps
XG250 Seal

XG250

Compact mechanical seal for small pumps and OEM equipment with space constraints.

  • Miniature design
  • Low friction operation
  • Long service intervals

Premium Seal Materials

🟥

Ceramic

High hardness, excellent wear resistance, and thermal stability for demanding applications.

🟨

TC (Tungsten Carbide)

Superior abrasion resistance and strength, ideal for slurry and high-pressure environments.

⬛

Carbon

Low friction, self-lubricating properties, and compatibility with a wide range of fluids.

🟩

Rubber Parts

NBR, EPDM, FKM, and other elastomers for optimal sealing and chemical resistance.

🟦

SSIC/SIC

Silicon Carbide variants offering exceptional hardness and corrosion resistance.

⬜

Stainless Steel

304, 316, and other grades for structural components with corrosion resistance.

20+
Years Experience
10M+
Seals Produced
50+
Countries Served
99.8%
Customer Satisfaction

Frequently Asked Questions

Are your seals compatible with John Crane, Burgmann, and other brands?

Yes, our mechanical seals are engineered to be interchangeable with equivalent models from John Crane, Burgmann, AES, Chesterton, Flowserve, Roten, Latty, and Fristam.

Do you provide seals for Flygt and Grundfos pumps?

Yes, we specialize in replacement seals for Flygt and Grundfos pumps, including models like Flygt 1527, 250, and various Grundfos series.

What materials do you use for your seals?

We use high-quality materials including Ceramic, Tungsten Carbide (TC), Carbon, SSIC/SIC, Stainless Steel, and various rubber compounds (NBR, EPDM, FKM) based on application requirements.

Can you provide OEM/Custom seal solutions?

Yes, we offer comprehensive OEM services and can design and manufacture custom mechanical seals according to your specifications and drawings.

What is your production capacity and lead time?

With our facility established in 2001, we have substantial production capacity. Standard products typically ship within 7-15 days, while custom orders depend on complexity.

Contact LM Seals

We guarantee best quality, service, and safe shipment for our customers. Your 100% satisfaction is our only concern.

Contact Information

Address: No.5, Xiangling Road, Fenghua, Ningbo, Zhejiang Province, China

Mobile: +86 135 0669 5287

Fax: +86 574 88513713

Email: [email protected]

Skype: Swallownb

WeChat: 18268695563

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