Ningbo Yade Fluid Connector Co., Ltd. is a professional manufacturer specializing in the development, production, and supply of mechanical seals and fluid sealing solutions. Located in Fenghua District, Ningbo, China, our factory focuses on providing reliable sealing products for global customers in pump and fluid equipment industries.
With years of manufacturing experience, Qixing has developed a comprehensive mechanical seal product system covering approximately 40 series and more than 1,000 specifications. Our products are widely used in various applications, including water pumps, industrial pumps, chemical pumps, automotive pumps, and other fluid handling equipment.
Through continuous improvement in manufacturing technology and production processes, our mechanical seals are designed to deliver stable sealing performance, reliable durability, and excellent compatibility for different working environments.
Product Series
Specifications
Patents
Qixing operates a manufacturing facility covering approximately 6,000 square meters, equipped with advanced machining equipment and professional production capabilities to support both standard production and customized requirements.
Precision CNC Machining Centers
Wire-cut Machining Equipment
Cutting Machining Equipment
Regular CNC Machines
Reliable sealing solutions for various water pump applications
Durable seals designed for heavy-duty industrial pumping
Corrosion-resistant seals for chemical environments
Precision seals for automotive fluid systems
Professional experience with a wide product range and mature processes.
40 series and 1,000+ specifications to meet different industrial needs.
Advanced CNC and precision equipment ensure stable production quality.
OEM and customized solutions available for special requirements.
Rich inventory and efficient management help shorten delivery time.
Export experience in Europe, the Middle East, and other markets.
Originally serving the domestic market, Qixing has expanded its business to international markets with dedicated overseas sales support.
Our mechanical seals have been exported to customers in Europe, the Middle East, and other regions, receiving positive feedback for their reliable quality and competitive value.
We understand that different equipment requires different sealing solutions. Qixing supports OEM and customized mechanical seal production based on:
Our team works closely with customers to provide suitable sealing solutions for their specific applications.
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The single spring mechanical seal market is undergoing a transition from price-driven to technology and service-driven competition. Recent industry developments show that multiple service providers are strengthening inventory supply and repair capabilities.
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In the field of mechanical sealing engineering, the selection debate between single-spring and multi-spring designs has long been a technical discussion. According to industry technical materials and standards, the difference lies in the distribution of compensating force.
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Industry market reports indicate that the global single spring mechanical seal market is in a phase of steady expansion. These sealing devices are primarily used for shaft-end sealing on rotating equipment such as pumps, compressors, and mixers, using a single spring to provide compensating force to maintain face contact and prevent liquid or gas leakage.
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Qixing supplies the M7N Multi Spring Mechanical Seal for industrial pump applications requiring dependable shaft sealing, dimensional flexibility, and material options. Designed for shaft sizes from 14 mm to 100 mm, the M7N supports temperatures from -20°C to +190°C, pressures up to 1.2 MPa, and sliding speeds up to 15 m/s. Its O-ring secondary sealing structure makes it suitable for clean water, sewage water, oil, and other moderately corrosive fluids.
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