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The SGF type accident distributing valve is cartridge type ofchange direction valve, it's used for hydropower turbine generator set overspeed protection system, when the unit speed is too high, and governor is failed, the accident distributing valve acts after accepted overspeed protection signal, cartridge valve spool to shift in the role of accident solenoid valve, the governor is removed, the servomotor is operated directly by it, emergency shutdown water guide mechanism to prevent the unit too fast, safe and reliable protection for the normal operation of the hydro group.
By optimizing the design of this product, the solenoid valve,oil valve and accident distributing valve of conventional GC type overspeed limiter areintegrated in one, so it's smaller, more reliable action; It uses a hydraulic cushioning device to overcomethe roar of the action of the GC type over speed limiter, it operates smoothly,it has longer life; The servomotor closing time is adjusted by the throttle device; It can be fitted stand, it can also be fitted lying, easy installation, small decorating the venue .
Functions and features
1. the solenoid valve,oil valve and accident distributing valve of conventional GC type overspeed limiter are integrated in one,high degree of integration, small size, light weight, small footprint space, easy to install.
2. Usinga hydrauliccushioning device, novibration sound, long service life.
3.Afterthrottling devicetuning, driftdoes not occur, stable and reliable.
Main Parameters
1. Rated pressure:   2.5MPa  4.0MPa  6.3MPa 16.0MPa
2. Power voltage:   220VDC  110VDC  220VAC
3. Temperature of surroundings: 5~40℃
4. Install mode: horizontal or vertical
5. Link mode: flange link

 
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