ruttie
Mechanical
- Jul 24, 2003
- 3
We have four 200mm plug valves that are used for preventing over-speed of a turbine. If these valves fail we need a redundant system of independant valves.
According to our Reliabilty department this independant system should not be a typical valve arrangement(i.e. plug-, butterfly-,ball- or gate valve with a pneumatic, hydraulic or electric actuator. The reason being that this doen not provide the neccessary independancy.
Are there any "valve systems" available that is of different design than the standard type of valves.
Typical operating conditions:
1. dP = 60 Bar
2. Temp = 100 C
3. Opening time = 200 ms
4. Medium = Helium
5. Force required = 25000 kg
6. Valve size = 200mm
Thank you
Ruttie
According to our Reliabilty department this independant system should not be a typical valve arrangement(i.e. plug-, butterfly-,ball- or gate valve with a pneumatic, hydraulic or electric actuator. The reason being that this doen not provide the neccessary independancy.
Are there any "valve systems" available that is of different design than the standard type of valves.
Typical operating conditions:
1. dP = 60 Bar
2. Temp = 100 C
3. Opening time = 200 ms
4. Medium = Helium
5. Force required = 25000 kg
6. Valve size = 200mm
Thank you
Ruttie
