The CR series provides high-quality mechanical sealing solutions specifically designed for stainless steel vertical multistage centrifugal pumps. These seals are engineered for reliability and precision, featuring an O-ring assembly type that ensures a secure fit for Grundfos pump models. With construction options including both punching and machining types, these seals offer exceptional durability and performance for demanding water pump applications.
Specialized Material Faces: Rotary and stationary rings are available in Silicon Carbide (SiC) and Tungsten Carbide (TC) for maximum wear resistance.
High-Grade Sealing: Secondary seals use NBR or VITON O-rings for superior chemical and thermal stability.
Corrosion Protection: Springs and all other metallic components are manufactured from SUS304 or SUS316 stainless steel.
Pressure Stability: Capable of handling operating pressures up to 1.0 MPa.
Thermal Resilience: Reliable performance in operating environments ranging from -30°C to +180°C.
Speed Efficiency: Designed for rotational speeds reaching up to 10 m/s.
| Model | d 1 | d 3 | d 7 | d 8 | M | l | l 1 | l 2 | S |
| CR-12 | 12 | 25.0 | 29 | \ | M28X1.5 | 55.0 | 19 | 48 | 35.8 |
| CR-14 | 14 | 27.5 | 38 | \ | M33X1.5 | 55.5 | 18 | 49 | 40.8 |
| CR-16 | 16 | 30.5 | 34 | \ | M33X1.5 | 57.5 | 20 | 55.5 | 40.8 |
| CR-22 PUNCH | twenty two | 39.0 | 50 | 59 | \ | 70.0 | 20 | 55.0 | \ |
| CR-22 MACHINING | twenty two | 42.0 | 50 | 60 | \ | 70.0 | 20 | 55.0 | \ |
| CR-32 | 32 | 53 | 61 | 71 | \ | 70.5 | 20 | 57.0 | \ |
Specifically designed for use in Grundfos stainless steel vertical multistage centrifugal pumps.
Compatible with Grundfos water pump models: CR1, CR3, CR5, CR10, CR15, CR20, CR32, CR45, CR64, and CR90.
Suitable for Grundfos models: CRN1, CRN3, CRN5, CRN10, CRN15, CRN20, CRN32, CRN45, CRN64, and CRN90.
Ideal for industrial water supply and high-pressure fluid management systems requiring O-ring assembly type seals.