| Model Function | J2SK—1.5 | J2SK—3 | J2SK—6 | J2SK—12 | J2SK—20 | J2SK—30 |
| Pumping speed（m³/min） | 1.5 | 3 | 6 | 12 | 20 | 30 |
| Ultimate pressure (Pa) | 3.3X103 | 3.3X103 | 3.3X103 | 3.3X103 | 3.3X103 | 3.3X103 |
| Motor Power (KW) | 4 | 7.5 | 15 | 22 | 37 | 55 |
| Nominal Motor speed (rpm) | 1440 | 1440 | 1460 | 970 | 740 | 740 |
| flow of supiying water (L/min） | 10~15 | 15~20 | 25~35 | 40~50 | 60~80 | 70~90 |
| Connections of inlet and outlet（mm） | Ø40 | Ø40 | Ø50 | Ø100 | Ø125 | Ø125 |
| Heat exchange area（㎡） | 4 | 5 | 6 | 8 | 12 | 16 |
| Circulating pump power（KW） | 0.18 | 0.37 | 0.37 | 0.37 | 1.1 | 1.1 |