Solid Sintered Silicon Carbide Seal Ring

This form is the hardest silicon carbide and the most chemical-resistant seal material available. Its hardness, chemical resistance and wear properties are unmatched. It features granular high-density alpha-silicon carbide, molded and sintered at high temperatures to form a solid part. Unlike other seal ring materials, sintered silicon carbide has no free graphite or silicon.

It's not as tough as other seal face materials, however, and it's important that seal designers take this into account. Sintered silicon carbide seal rings should be driven by flat drive pads, not dowel pins, to reduce stress concentrations. In addition, transmitting torque and axial loading using compliant vibration isolation pads minimizes impact stresses. Sintered silicon carbide is increasing in popularity in seal designs that minimize harmful stresses to ensure reliability.

Zhejing Dongxin Seals Co.,Ltd. is a leading manufacturer and exporter in the seals industry in China. We are also a specialist manufacturer in special seals, such as silicon-carbide seal, carbon-graphite seal, hot-pressed graphite seal, silicon-carbide and carbon-graphite bearing etc. Our products are widely used in many fields including in the petroleum, chemical, machinery-building, cosmonautics, printing, dyeing, foodstuff, pharmaceutical and auto industry. By taking advantage of efficient product processes and innovative technologies we can deliver low cost and high quality product anywhere in the world.