2
6
2
1
5
7
8
9
4
10
5
3
5
Fp9 Fp12 Fp3 Fp6
hWW hWn hWe hWs
Figure 4
Air
Air
Liquid
process
gas
The A.T.-Temp Cryogenic desuperheater is
provided with a lower body length, as specified
in the contract drawing and the mounting
branch for the process pipework must be
manufactured to suit.
The length of this branch should be such, that
the centerline of the spray cylinder is located
on the centerline of the process line (± 5 mm).
The mounting branch nominal bore and pipe
schedule (check the applicable process piping
code), should be verified and in line with the
dimensions mentioned on the certified drawing.
YarwaY
A.T.-Temp CryogeniC desuperheATer
InstallatIon and MaIntenance InstructIons
item
description
1
Temperature sensor
2
Temperature transmitter
3
Temperature controller
4
A.T.-Temp Cryogenic desuperheater
5
Air filter regulator
6
safety relief valve
7
strainer
8
Check valve
9
Flange
10
pneumatic -or e/p- positioner
Figure 1
Check for damages
Check for damages
Figure 2
Figure 3
Liquid FLAnge posiTions
process line
process
gas flow
hAndWheeL posiTions
process line
process
gas flow
The minimum pipe run, required downstream
of the A.T.-Temp Cryogenic desuperheater,
varies with each individual application and
would be specified by yarway at the enquiry
stage. This straight run is needed to prevent
erosion due to impingement of droplets against
pipewalls, valves and fittings and is normally
in the order of 2 to 3 meters for hydrocarbons,
as a minimum (no upstream straight length is
normally required).
The distance from the A.T.-Temp Cryogenic
desuperheater to the temperature sensor is
nominally 6 to 7 meters, although the distance
specific to the application would be advised by
yarway at the enquiry stage. Longer distances
will ensure that full evaporation will take place
at lower velocities.
The temperature sensor should be located in
the upper half of the pipe, avoid branching of
the process pipework between the A.T.-Temp
Cryogenic desuperheater and the sensor
(see Figure 4).
