This was the principle governing the development of the THIES High-efficiency Safety Valves.
Special research led to the development of a simple construction of the flow passages leading to optimum efficiency and performance.
|  | High functional and operational reliability due to a very simple configuration. Operation description
| | High blow-off rate due to low flow losses.
| | Reliable valve response.
| | Favourable closing pressure differential.
| | No auxiliary lifting required for 341 + 356/357 + 390/391 + 392/393 series.
| | Corrosion-resistant spindle bushes.
| | Abrasion and corrosion resistant sealing surfaces.
| | Centrally applied closing force.
| | Available in: grey cast iron, spheroidal graphite iron, cast steel and stainless steel. |
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