Pulpeng
Mechanical
- Jul 24, 2007
- 38
We have a liquid service relief valve on the steam dome of our deaerator. I've been asked to determine whether a steam or liquid one should be used.
Couple of interesting notes from various sources.
Excerpts from OEM manual -
1) Relief valver UNO should be a sentinel type.
2) Steam lines should have their own protection
from an online source "the
deaerator may be provided with a relief valve capable of passing a limited amount of steam to provide a
warning that the deaerator is receiving excessive energy input"
So two questions - if there's no real mechanism of overpressure from the aerator itself and both inputs (water and steam) are protected - what circumstance am I sizing it for and secondly should it be a type for liquid or steam?
Couple of interesting notes from various sources.
Excerpts from OEM manual -
1) Relief valver UNO should be a sentinel type.
2) Steam lines should have their own protection
from an online source "the
deaerator may be provided with a relief valve capable of passing a limited amount of steam to provide a
warning that the deaerator is receiving excessive energy input"
So two questions - if there's no real mechanism of overpressure from the aerator itself and both inputs (water and steam) are protected - what circumstance am I sizing it for and secondly should it be a type for liquid or steam?
