The task of safety valves is to release the pressure from the process if it exceeds the pressure setting of the valve. The pressure setting is implemented by a spring compressed between spring plates. The upper end of the spring plate is locked, which means that the force only acts downwards. If the pressure under the cone exceeds the spring force, the safety valve opens. The safety valve closes at 10...30% below the pressure setting, for which reason the operating pressure cannot be too high. Indicate the application and process values to our sales personnel, who will guide you in the safety valve selection, if required.
The product range includes normal-lift and high-lift safety valves, valves with an open or closed seat, as well as hoods from an open to a gas-tight model. Our comprehensive range most certainly includes an appropriate model for steam, liquid and gas applications.
Bellows seal for backpressure
Dynamic and/or static backpressure may not exceed 10% of the set pressure; if this cannot be avoided, the safety valve can be equipped with pressure equalisation bellows.
We will dimension and choose safety valves appropriate for the customers’ applications.
We keep a good buffer stock of bodies and springs for different models. In the case of urgent deliveries, we will tune the valves quickly and reliably to the desired set pressure. We co-operate with inspection bodies, which means that acceptance certificates are also available for our stock deliveries. We also offer safety valve maintenance services.