Safety valve for steam turbine
Pos-E-Stop
Elliott Company
The Elliott Pos-E-Stop 203 Trip Block is a technological leap forward in the control of trip valves for steam turbines, hot gas expanders and similar power applications in emergency situations such as overspeed, high vibration or process upset. The Pos-E-Stop Trip Block's flexible "two-out-of-three" logic provides a significantly higher degree of tripping reliability than single or paired solenoid designs, and its best in class response time reduces the tripping interval for enhanced safety. And, the Pos-E-Stop Trip Block has the ability to interface with the master plant control or EDS system.
Features and Benefits
- Improved trip system reliability
- Best in class response time with reduced tripping interval
- Increased availability
- On-line test capability without defeating trip protection
- On-line replacement of critical components without defeating trip protection
- Continuous on-line monitoring of solenoids and valve positions
- Elimination of isolation valves reduces risk of operator error
- Enables trip system standardization across the plant
- Easy to install; simplifies most piping layouts
- Meets hazardous area classifications
- Meets applicable CE directives
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