News

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.

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.

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.

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.