Since 2004 we offer complete Safety Systems usable for the explosion-technical decoupling. This Safety Systems are consisting of a combination of two
Shut-Off Valves (GS type series: shock pressure resistant and flame tight proofed), a corresponding surge drum as well as an EG-type tested locking system. The reliability principle of the Safety System is based on the fact that one valve is closed at any time. To insure the necessary functionality a locking system was developed which is working independent from the superior control mode. Particularly with regard to vacuum application Protective Systems are used alternatively to rotary airlocks due to their lower leakage air. For more details see also chapter DKZ GS. The type series WA5E 103GS-ST3/… is applicable for aluminium dust / air mixtures and metallic dust of the dust explosion class St3 (Kst ≤1000 bar · m/s). The shock pressure resistance is 14 bar.