Cartridge mechanical seals, perfectly suit in the Grundfos CR, CRI & CRN Series Vertical Multistage Centrifugal Pumps, which are typically found in a wide range of applications, including fire fighting systems; boiler feeds; drinking water; shipping; water treatment; hospitals, food & beverage, and many more.
The range consists of three sizes: 12mm, 16mm & 22mm. The 12mm & 16mm seals are of a threaded gland design, & the 22mm seal is clamped-in gland design.
Antimony Carbon versus Silicon Carbide is chosen as standard seal face combination.