Valve for creating overpressure in the return flow line of piezo injectors BOSCH series 115,116,117

Valve for creating overpressure in the return flow line of piezo injectors BOSCH series 115,116,117. 

Not afraid of dirt, completely collapsible and has the function to adjust the pressure ‘6 - 11 bar’. In a set are 10 sealing rings (O-rings) that are made of stainless steel. Can be used in stands of all manufacturers as a full replacement of the original and has a long life under heavy operation.