Precision Industrial Sealing Solutions
Since 2002, ISP Industrial Sealing Products Co., Ltd. has delivered high-quality mechanical seals, cartridge seals, and sealing components for pumps, mixers, agitators, and cooling systems worldwide.
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Since 2002, ISP Industrial Sealing Products Co., Ltd. has delivered high-quality mechanical seals, cartridge seals, and sealing components for pumps, mixers, agitators, and cooling systems worldwide.
ISP (NINGBO FIT MECHANICAL COMPONENTS), established in 2002, is a high-tech factory specializing in the design and manufacturing of high-quality industrial sealing products for a wide range of applications.
We serve industries including water treatment, chemical processing, food & beverage, power generation, and HVAC systems. Our sealing solutions ensure reliability, reduce downtime, and extend equipment life.
Trusted by global clients since 2002
High-quality materials & precision engineering
Exported to over 50 countries
Tailored seals for unique applications
High-performance mechanical seals, cartridge seals, and sealing components engineered for durability, efficiency, and leak-free operation in demanding industrial environments.
Robust cartridge seal designed for ANSI pumps, offering easy installation and reliable performance in industrial applications.
High-efficiency mechanical seal compatible with John Crane standards, ideal for chemical and process pumps.
Dual cartridge mechanical seal for enhanced safety in hazardous or high-pressure environments.
Double face cartridge seal for applications requiring zero leakage and high reliability.
Advanced mechanical seal for severe-duty applications with excellent thermal stability and wear resistance.
Pre-assembled cartridge seal for quick installation and minimal maintenance downtime.
High-performance seal for centrifugal pumps with excellent resistance to abrasion and corrosion.
Metal bellow mechanical seal for high-temperature and cryogenic applications with zero leakage.
Compact and reliable seal for standard industrial pumps with easy alignment features.
Heavy-duty cartridge seal for aggressive chemical environments and high-pressure systems.
Corrosion-resistant seal with advanced materials for long service life in harsh conditions.
OEM-compatible seals for Grundfos pumps, ensuring optimal performance and longevity.
Over two decades of experience in designing and manufacturing precision sealing solutions for demanding industrial environments.
Rigorous quality control processes ensure every seal meets international standards for performance and reliability.
Fast delivery and technical support available worldwide to minimize downtime and keep your operations running smoothly.
We offer tailored sealing solutions to meet unique application requirements and OEM specifications.
Engineered for zero leakage, reducing environmental impact and improving workplace safety.
Durable materials like silicon carbide, tungsten carbide, and PTFE ensure long-lasting performance and reduced maintenance costs.
We manufacture a wide range of mechanical seals including cartridge mechanical seals, metal bellow seals, double seals, and OEM-compatible seals for brands like John Crane, Burgmann, Grundfos, and Flygt. We also produce rubber sealing rings, PTFE washers, and ceramic/silicon carbide rings.
Yes, our seals are engineered to meet or exceed the performance of original equipment manufacturer (OEM) models including John Crane types 5840, 5860, 4610, SE2, and 609, as well as Burgmann, Grundfos, and Flygt pump seals.
We use high-grade materials such as carbon-tungsten alloy (TC), silicon carbide (SIC), graphite (CAR), ceramics (CER), PTFE, and various elastomers to ensure durability, chemical resistance, and thermal stability.
Yes, we offer custom design and manufacturing services for unique applications. Our engineering team can develop seals based on your specifications, drawings, or samples.
Our seals are used in water treatment, chemical processing, oil & gas, power generation, food & beverage, pharmaceuticals, HVAC, and industrial manufacturing.
Contact our team for product inquiries, technical support, or custom sealing solutions.
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