Spring check valve is designed for installation in hydraulic and pneumatic pipelines and for passage of transported medium only in one direction (indicated by an arrow on the valve body). Cold, hot water and other liquids not aggressive to the valve material can be used as the transported medium.
| Size | Article | A | B | C | D | S | pcs/boxes |
| 20 | K0251.PRO | 55 | Ø32 | 16,5 | Ø19 | 28 | 460 |
| 25 | K0252.PRO | 66 | Ø39,5 | 20 | Ø24 | 35 | 230 |
| 32 | K0253.PRO | 77 | Ø47.5 | 20 | Ø31 | 42 | 140 |