HYDAC Safety and shut-off blocks The versions of the HYDAC safety and shut-off block SAF, its special versions and the DSV10, the low-cost variant of the SAF10, are practical hydraulic accessories for blocking and relieving hydraulic accumulators or consumers. They comply with relevant safety regulations and the German industrial safety regulations BetrSichV. The optimum combination of safety and shut-off blocks considerably simplifies the connection of a consumer to the hydraulic system and provides benefits such as: minimum of space requirements and maintenance outlays, minimum of pipework (1 SAF replaces as a rule up to 10 individual pipe connections), considerable reduction of installation time, adapters for various accumulator types and additional valves (controlled non-return valves, flow valves, etc hydac saf32 hydac saf20m12t210a-s13 hydac saf 10 hydac saf 32 hydac saf 8 hydac saf 50 hydac dsv10 hydac dsv10