CFB safety & control valve selection
CFB safety & control valve selection
(OP)
Q1--Safety valve:
Known data: design pressure/temperature, operating pressure, main steam flow, valve type, size, Mat'l.
Do I have to produce "relieving capacity" to vendor to complete the specification?
Q2--control valve:
Know data: design/operating pressure and temperature, pressure drop, max flow at 80% stroke, type, size, Mat'l.
Do I have to produce "min/max inlet and outlet pressure" to vendor? If necessary, how?
Thanks.
Known data: design pressure/temperature, operating pressure, main steam flow, valve type, size, Mat'l.
Do I have to produce "relieving capacity" to vendor to complete the specification?
Q2--control valve:
Know data: design/operating pressure and temperature, pressure drop, max flow at 80% stroke, type, size, Mat'l.
Do I have to produce "min/max inlet and outlet pressure" to vendor? If necessary, how?
Thanks.
Talk To Other Members
RE: CFB safety & control valve selection
The vendor is likely to want to put together the circuit for the system if the vendor is qualified to do so.
The vendor may need minimum pressures if the directional valves are pilot operated. This is information that would come from the vendor to whomever is doing the circuit design.
Dan Helgerson CFPS, AFPI, AJPP
www.cfpsos.com