[Three rain valve to recommend Star Products - Mechanical seal]: Single seal / Unbalanced / conical spring / fixed rotation / comply with EN12756 (DIN24960) standard BYM37G series of mechanical seals, simple structure, wide application 58B -95 mechanical seal reliability. Suitable for clean water pumps, sewage pumps, submersible pumps and chemical process pumps. Combination of materials Sealing face: graphite, silicon carbide mechanical seal 58B-120, tungsten carbide, aluminum oxide, stainless steel Secondary sealing: nitrile rubber, fluorine rubber, ethylene propylene rubber, PTFE Metal component: Stainless steel [three rain valve recommend star Products - Mechanical seal] Introduction: BY8220 structural features characteristic: the typical stationary bellows mechanical seal structure 58B-100 mechanical seal, flange connection, forced cooling, reasonable design, reliable quality. Operating parameters pressure: ≤30kg / cm2 Temperature: ≤450 ℃ line speed: ≤30m / s 58B-90 mechanical seal _ three rain machine seal (certification) _ Chifeng mechanical seal is provided by three rain Valve Co., Ltd. of Tianjin. Tianjin three rain Valve Co., Ltd. (www.tjsymf.com) (www.tjsymf.com) is a professional "mechanical seals, mechanical seal, shaft seal, mechanical seals, seals," the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "three rain" brand has a good reputation. We adhere to the "service first, customer first" principle, so that the three rain valve won the trust of customers in the public seal, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!