China FBD Series Mechanical Seals for Marine Water Pumps - Reliable Suppliers from Factory
Product Introduction
The FBD series mechanical seal is a versatile and reliable single end non-equilibrium sealing product designed specifically for the sealing needs of various rotating equipment. It can be widely adapted to various hosts such as pumps and blowers. This series of products adopts a single spring+rubber corrugated tube structure, effectively solving the pain points of traditional sealing that are prone to blockage and high compensation resistance. The rotation direction is flexible, the installation is convenient, and there is no need for complex debugging before it can be put into use.
The product strictly follows international and domestic standards in production, with scientifically reasonable material selection. Material combinations can be customized according to different media and working conditions, with wear resistance and weak corrosion resistance. It can operate stably under working conditions of -20 ℃ to 120 ℃ and ≤ 1.4MPa, and is suitable for various media such as clean water, sewage, and oil. Quality control is implemented throughout the entire production process, from raw material inspection to finished product testing, ensuring precise product dimensions and excellent sealing performance.
As a cost-effective sealing solution, FBD series mechanical seals can replace imported similar products and are widely used in various industries such as water treatment, petrochemicals, and general machinery. They effectively prevent medium leakage, protect equipment safety, reduce maintenance costs, and provide strong guarantees for the continuous and stable operation of industrial production.
Product Production Process
- ①Raw Material Procurement & Inspection — All incoming rubber, metal, and sealing materials undergo strict sample testing to confirm performance compliance.
- ②Product Design — Engineering design tailored to application requirements and international standards.
- ③Mold Making — High-precision equipment ensures dimensional accuracy at every stage.
- ④Production & Processing — Cutting, forming, vulcanization processes with tight control of temperature and pressure parameters.
- ⑤Precision Assembly — All parts professionally cleaned; assembled to specification ensuring spring concentricity and even sealing surface stress.
- ⑥Finished Product Testing — Coordinate measuring instruments and optical microscopes used for dimensional, surface quality, and performance verification.
The FBD series mechanical seals follow a production process with controllable quality throughout the entire process. After entering the factory, raw materials need to undergo strict sample testing to ensure that rubber, metal, sealing materials, etc. meet performance requirements; The mold production adopts high-precision equipment to ensure the dimensional accuracy of the product; The production and processing process covers cutting, forming, vulcanization and other processes, strictly controlling parameters such as temperature and pressure to avoid problems such as burning and missing glue.
During the assembly process, all parts are professionally cleaned to remove oil and dust, and assembled according to specifications to ensure that the springs are concentric and the sealing surface is evenly stressed, avoiding scratching the sealing end face. The finished product inspection process uses equipment such as coordinate measuring instruments and optical microscopes to conduct size inspection, surface quality inspection, and performance testing. The focus is on checking the smoothness of the sealing surface, spring elasticity, etc. Unqualified products are strictly prohibited from leaving the factory to ensure that each product meets quality standards.
Features
The FBD series mechanical seal adopts a single end face, unbalanced structural design, equipped with a single spring and rubber bellows as compensation components, and the rotation direction is not limited, suitable for various working conditions. Its core feature lies in the single spring design, which effectively reduces the risk of blockage. The rubber bellows can achieve radial compensation of the shaft, improve the floating performance of the rotating ring, reduce compensation resistance, and ensure sealing stability. The product complies with international and domestic standards such as ISO 3069, GB 6556, DIN 24960, etc., with inner diameter specifications ranging from 20mm to 120mm, and is compatible with various equipment models.
- ◆Rotating & Stationary Ring Materials: SiC, TC, Graphite — selectable per application
- ◆Elastomer Materials: Viton (FKM), EPDM
- ◆Metal Parts: 304 / 316L Stainless Steel
- ◆Standards Compliance: ISO 3069, GB 6556, DIN 24960
- ◆Inner Diameter Range: 20 mm – 120 mm
- ◆Compatible Media: Clean water, sewage, oil and other weakly corrosive media
This series of seals is resistant to wear and weak corrosion, with excellent operating parameters. The working pressure is ≤1.4MPa, the temperature range is -20℃ to 120℃, and the linear speed is ≤15m/s. It can be adapted to various weakly corrosive media such as clean water, sewage, and oil. The material selection is flexible. SiC, TC, graphite, etc. can be used for rotating and stationary rings, Viton, EPDM, etc. can be used for elastomers, and 304, 316L stainless steel can be used for metal parts. The material combination can be customized according to specific working conditions, with strong universality and adaptability. It can also replace similar seals from brands such as Igelberg Mann and John Crane.