5 replies to this topic

[DANA-IF]

Hello friends ;

I'm wondering please what API version should I refer  to calculate set pressure , builtup back pressure ,

 

superimposed back pressure ,cold differential and permessible overpressure for PSV . The fluid il gasoil

 

 PSV.png   31.2KB   9 downloads

THANKS  A LOT !

[colt16]

Hello friends ;

I'm wondering please what API version should I refer  to calculate set pressure , builtup back pressure ,

 

superimposed back pressure ,cold differential and permessible overpressure for PSV . The fluid il gasoil

 

PSV.png

THANKS  A LOT !

 

These look like thermal relief valves. 

If this is the case API STD 521 5.14.2 should be consulted. 

 

There is no need to do too much extensive calculation and just a simple 3/4" x 1" valve to be used unless you suspect this is not enough for thermal relief (rare). 

 

Set pressure can be design pressure of the piping system. 

[DANA-IF]

 

Hello friends ;

I'm wondering please what API version should I refer  to calculate set pressure , builtup back pressure ,

 

superimposed back pressure ,cold differential and permessible overpressure for PSV . The fluid il gasoil

 

PSV.png

THANKS  A LOT !

 

These look like thermal relief valves. 

If this is the case API STD 521 5.14.2 should be consulted. 

 

There is no need to do too much extensive calculation and just a simple 3/4" x 1" valve to be used unless you suspect this is not enough for thermal relief (rare). 

 

Set pressure can be design pressure of the piping system. 

 

What paragraph please ,I don't found  5.14.2 

REGARDS !

[colt16]

 

 

Hello friends ;

I'm wondering please what API version should I refer  to calculate set pressure , builtup back pressure ,

 

superimposed back pressure ,cold differential and permessible overpressure for PSV . The fluid il gasoil

 

PSV.png

THANKS  A LOT !

 

These look like thermal relief valves. 

If this is the case API STD 521 5.14.2 should be consulted. 

 

There is no need to do too much extensive calculation and just a simple 3/4" x 1" valve to be used unless you suspect this is not enough for thermal relief (rare). 

 

Set pressure can be design pressure of the piping system. 

 

What paragraph please ,I don't found  5.14.2 

REGARDS !

 

 

 

I am using Fifth Edition (2007). 

 

What edition is yours?

[DANA-IF]

 

 

 

Hello friends ;

I'm wondering please what API version should I refer  to calculate set pressure , builtup back pressure ,

 

superimposed back pressure ,cold differential and permessible overpressure for PSV . The fluid il gasoil

 

PSV.png

THANKS  A LOT !

 

These look like thermal relief valves. 

If this is the case API STD 521 5.14.2 should be consulted. 

 

There is no need to do too much extensive calculation and just a simple 3/4" x 1" valve to be used unless you suspect this is not enough for thermal relief (rare). 

 

Set pressure can be design pressure of the piping system. 

 

What paragraph please ,I don't found  5.14.2 

REGARDS !

 

 

 

I am using Fifth Edition (2007). 

 

What edition is yours?

 

I'm using API STANDARD 521 SIXTH EDITION, JANUARY 2014 , could you please send me the Fifth Edition (2007) to nadia6bhl@gmail.com 

[colt16]

 

 

 

 

Hello friends ;

I'm wondering please what API version should I refer  to calculate set pressure , builtup back pressure ,

 

superimposed back pressure ,cold differential and permessible overpressure for PSV . The fluid il gasoil

 

PSV.png

THANKS  A LOT !

 

These look like thermal relief valves. 

If this is the case API STD 521 5.14.2 should be consulted. 

 

There is no need to do too much extensive calculation and just a simple 3/4" x 1" valve to be used unless you suspect this is not enough for thermal relief (rare). 

 

Set pressure can be design pressure of the piping system. 

 

What paragraph please ,I don't found  5.14.2 

REGARDS !

 

 

 

I am using Fifth Edition (2007). 

 

What edition is yours?

 

I'm using API STANDARD 521 SIXTH EDITION, JANUARY 2014 , could you please send me the Fifth Edition (2007) to nadia6bhl@gmail.com 

 

 

Sorry I can't as that would be illegal. 

Anyway, find the section that mentions thermal relief. 

 

I don't think the content will change that much. Maybe only the numbering.