mechanical seals for pumps:pump mechanical seals china
DY21 mechanical seals are characterized with a single large spring and o-rings. ceramic,carbon,silicon carbide,tungsten carbide and etc can work as the seal faces or mating rings.
DY21 mechanical seals can be engaged in fluids,such as water,oil, and chemically corrosive mediums and the mechanical seal temperture and pressure is -20ºC~150ºC and less than0.8Mpa and the shaft rotates at a speed less than 10 m/Sec
