Pressure relief valveSDDB-...S series

Series SDDB--...S--6 stack valves protectA and/orB againstpressure peaks, relieving such peaks to B and/or A (’cross--line’). They are equipped with the direct acting pressure relief cartridge type DDPB--1C--10... . The valves have a fast response, close with virtually zero leakageand are rated for the full ISO size 3 flow rate. The screw--in design of the cartridge valve provides for straight--forward, trouble-- free maintenance. Interface sealing is bymeans ofO--rings which are retained in counterbores in the valve body.