High Quality Single Spring Mechanical Seals Made in China

The 8D single spring mechanical seal is the positive-drive version of the Qixing 8. It shares the same O-ring single spring design and the same +200C, 20 m/s, 1.2 MPa envelope, but adds a positive drive element (the d1 drive pin) so the rotary face cannot slip on the shaft under high torque. Shaft sizes 10 mm to 80 mm. Send inquiry now!

The 8 single spring mechanical seal is Qixing's high-temperature O-ring single spring seal: rated to +200C and 20 m/s, with an O-ring secondary seal in place of a rubber bellows. Shaft sizes run 10 mm to 80 mm, pressure to 1.2 MPa. It suits clean water, sewage, oil and moderately corrosive fluids that run hot or fast. Buy the 8 single spring mechanical seal direct from the Qixing factory in China at OEM and wholesale pricing.

The 7D single spring mechanical seal is built for heat and speed. With an O-ring pusher design rated to +200C and 18 m/s, it runs where standard single spring seals fade - hot water, thermal media, and high-speed two-pole motor pumps. Shaft sizes 10 mm to 100 mm, pressure to 0.8 MPa. Contact us for quotation!

If you want to find a factory that can provide you with wholesale and customized services, you can consider us; Qixing has been focusing on Z4 Single Spring Mechanical Seal manufacturing and global trade over the years.

Replacing a leaking pump seal? The Qixing Z3 single spring mechanical seal drops into any G9 (DIN 24960) seal cavity, shaft sizes 10mm to 80mm. As a China mechanical seal factory and supplier, Qixing ships OEM and wholesale Z3 orders with same-day quotations. Buy direct and cut your replacement seal costs.

Need a wide-temperature single spring mechanical seal? The Qixing Z2 Single Spring Mechanical Seal handles -40°C to +200°C and 15 m/s in shaft sizes from 10mm to 100mm. As a China mechanical seal factory, Qixing supplies OEM pump builders and distributors with wholesale Z2 seals at competitive prices. Request a quotation today.