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AGL_Stream_ST_4MTL_4MSL_E_Rev01
15
Compressor
Displacement
(m³/h)
Flange
mountings
(mm)
Suction connection
Discharge connection
Inner
diameter
Drawing
number
Description
Inner
diameter
Drawing
number
Description
4MSL-03
4.60
45 x 45
5/8"
510-0823-00
W22 / ODS 5/8
1/2"
510-0809-00
W17.2 / ODS 1/2
4MSL-04
6.20
5/8"
W22 / ODS 5/8
1/2"
W17.2 / ODS 1/2
4MSL-06
7.40
5/8"
W22 / ODS 5/8
1/2"
W17.2 / ODS 1/2
4MSL-08
9.54
52 x 52
7/8"
510-0844-00
W30 / ODS 7/8
5/8"
510-0842-00
W22 / ODS 5/8
4MSL-12
12.50
7/8"
W30 / ODS 7/8
5/8"
W22 / ODS 5/8
4MSL-15
17.90
7/8"
W30 / ODS 7/8
5/8"
W22 / ODS 5/8
Table 7: Shut-off valves for subcritical compressors
3.3.1 Shut-off valves design
The standard shut-off valves on Stream CO
2
compressors are flange valves with one flare connection
port (lockable) for service. The service connection port is a 7/16"
– 20 UNF, with a blind cap SAE
1/4" (blind cap material: stainless steel 1.4301). The valves are universal, ie, suitable for brazing or
welding (butt weld and fillet weld connections are possible).
Figure 19: 3-D view of shut-off valve
For proper tightening torques for bolts, spindle cap, blind cap and gland seal, please refer to table in
Appendix 2
"Tightening torques in Nm"
.
The spindle is front-seated (close to piping system) when the compressor is delivered.
3.3.2 Explanation of supplier description
W 13.5 / ODS 3/8"
Outer diameter tube for brazing
Brazing
Outer diameter tube for welding
Welding
3.3.3 Additional information about shut-off valves
CAUTION
High operating pressures! Risk of leakage!
High operating pressures must
be taken into account when welding and brazing connections. Use materials
and follow procedures according to the relevant standards in order to prevent
any risk of leakage when operating the compressor.
The shut-off valves are made of a fine-grained mild steel (S235JRG2C
– EN 10025) suitable for both
welding and brazing. Plating is Fe/Cu5Sn5 material.
The use of standard steel tubes (S235, P235, etc.) is possible.
When using stainless steel tubes (SS) the welding consumable has to be selected for dissimilar
materials (stainless steel to mild steel).
For the brazing of the connection, brazing material with a minimum silver content of 34 % (or higher)
in combination with flux material is required, eg, Fontargen A319, A320. The description of the
brazing material according to European standard EN 1044 is AG106 and AG104 respectively.
In any case the connection area after welding or brazing has to be cleaned and protected against
corrosion.
Содержание Copeland 4MSL-03
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