TEV marstair MRC+ Series - Pipework

13/27
55008351-23
MRC+ 130 – 180 (Dimensions in mm.)
PIPEWORK
Supplied male flare connections (sizes in inches)
Model
MRC+ 15-180
Size
15
20
30
40
45
50
60
80
90
100
130
150
165
180
Liquid
3/8
3/8
3/8
3/8
3/8
3/8
3/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
Suction
3/8
1/2
1/2
1/2
1/2
1/2
5/8
5/8
5/8
3/4
3/4
3/4
3/4
7/8*
* Brazed connections
MAXIMUM PIPE RUNS
45m maximum including 6m lift (20m MRC+ 15-20). There will be no significant loss of capacity for extended
pipe runs provided pipes are correctly sized.
CALCULATING EQUIVALENT LENGTHS
The effects of bends and fittings must be taken into account.
Pipe sizes are based on:
Minimum of 2.5 m/s (500 fpm) suction gas velocity for horizontal or downflow.
Minimum of 5.0 m/s (1000 fpm) suction gas velocity for upflow.
Maximum of 20.0 m/s (4000 fpm) suction gas.
Where vertical risers exceed 3m, oil traps must be formed in the pipe. This will help ensure that oil returns to
the compressor. Typically fit an oil trap every 3m with a trap at the bottom of the riser.
GOOD PRACTICE
▪ Keep pipe runs as short as possible.
▪ Avoid sharp bends
▪ Fully insulate both suction and liquid including mechanical connections
▪ Try to avoid running pipes through hot areas.
MODEL
A
B
C
D
E
Weight (kg)
MRC+ 130
1000
1020
495
251
100
101
MRC+ 150
1000
1020
495
251
100
103
MRC+ 165
1000
1020
495
251
100
103
MRC+ 180
1100
1215
675
211
95
118
B
60
A 10
C
D
E
MOUNTING HOLES
417
397
425