Home > SOLUTIONS
Industrial sealing solutions go beyond simply selecting a seal. They represent a complete configuration that ensures pumps and rotating equipment operate reliably over the long term. Effective sealing is determined by evaluating media characteristics, operating pressure, temperature range, shaft diameter, and installation conditions — covering seal type selection, material compatibility, structural configuration, and maintenance requirements. A properly engineered sealing solution reduces leakage risk, extends equipment service life, and lowers overall operational and maintenance costs.
In industrial equipment operation, sealing failures often develop gradually rather than occurring suddenly. Early warning signs are frequently overlooked, and maintenance is not always conducted systematically. The following issues and approaches help clarify root causes, response strategies, and prevention methods.
Leakage assessment should begin with identifying the leakage location and media condition. Seal face leakage is commonly related to improper installation, shaft misalignment, incorrect seal selection, or worn seal faces. Secondary leakage may result from O-ring aging or dimensional mismatch. Solutions should confirm seal type, face material compatibility, and installation alignment — and define whether auxiliary systems such as flushing or cooling are required.
Accelerated seal wear is often caused by dry running, cavitation, solid particles in the media, or mismatched face materials. Thermal cycling further amplifies face wear and dimensional variation. Evaluation should confirm media cleanliness, operating pressure and temperature stability, and material compatibility. Yongbang recommends silicon carbide or TC alloy face combinations for abrasive or high-temperature applications.
Excessive heat generation at the seal face typically occurs when lubrication is insufficient, flushing flow is too low, or the seal operates outside its rated temperature range. Assessment should return to operating conditions and verify whether auxiliary cooling or flushing plans meet actual heat dissipation requirements. Solutions should define allowable temperature limits and confirm face material thermal resistance.
Shaft vibration and abnormal noise during operation are often linked to seal misalignment, improper installation, worn bearings, or resonance from piping stress. These conditions accelerate seal face wear and reduce service life. Diagnosis should begin with shaft runout verification and installation checks, followed by review of seal type and spring load configuration.
Selecting the wrong seal type for the application is one of the most common root causes of repeated failures. Key parameters — including shaft diameter, pressure, temperature, media type, and equipment configuration — must all be confirmed before selection. Yongbang provides application-based seal recommendations and supports customization from drawings or samples to ensure precise fit and long-term reliability.
Product name
Durable models for high-volume production and cost-efficient operations.
Product name
Durable models for high-volume production and cost-efficient operations.
Product name
Durable models for high-volume production and cost-efficient operations.
Product name
Durable models for high-volume production and cost-efficient operations.
Product name
Durable models for high-volume production and cost-efficient operations.
Product name
Durable models for high-volume production and cost-efficient operations.
We mainly use high-performance aluminum alloys such as ADC12 and A356. The ADC12 is ideal for complex shapes such as side covers due to its excellent flow properties, while the A356 is the first choice for structural parts such as crankboxes that require excellent strength and elongation. We use a spectrometer to confirm the composition of each melt to ensure material stability.
Preventing leaks is the core standard we ensure. We control internal density through precise high or low pressure casting parameters. After casting, we perform precision CNC machining on the sealing surfaces and perform pneumatic leak tests on the oil passages and water passages to ensure zero leaks in the assembly.
For new OEM projects, the lead time from mold design to T1 sample delivery is typically 35-50 days. Once samples are approved, our capacity of 5000 tons per year allows us to adjust mass production plans to meet your specific delivery deadlines
Our process includes Shot Blasting and vibration deburring to achieve a clean, matte appearance. At the same time, we can also prepare powder coated or painted surfaces based on the aesthetic requirements of your brand.
