Reciprocating expanders DPV2-200/6-3M, DPV4.2-200/6-2
The DPV2-200/6-3M and DPV4.2-200/6-2 reciprocating expanders are designed to produce low temperatures by means of expansions of the compressed air.
The expanders are used in multimode stationary and mobile air-fractionating units of small capacity to produce nitrogen and oxygen.
Application
Reciprocating expander DPV2-200/6-3M
- Air-fractionating units of types AgKg-0.06, AgKg-0.06-1, AgA-0.06 (in complete set with compressor unit VW-4.2/200).
Reciprocating expander DPV4.2-200/6-2
- Air-fractionating units of small capacity (in complete set with compressor unit АВШ-3.7/200M).
Technical specifications
|
DPV2-200/6-3M |
DPV4.2-200/6-2 |
|
|
Capacity,m3/h |
140 |
250 |
|
Cold-productivity, W |
4300 |
9000 |
|
Capacity adjustment, % |
100–50 |
100-70 |
|
Initial pressure, MPa (kgf/cm2) |
20 (200) |
20 (200) |
|
Outlet pressure,MPa (kgf/cm2) |
0.5 (5) |
0.5 (5) |
|
Inlet air temperature, °С |
from - (minus) 20 до +30 |
from 0 до +30 |
|
Temperature difference in expander, °С |
130 |
139 |
|
Expander efficiency, %(min) |
65 |
68 |
|
Crankshaft rotational speed, c-1(rpm) |
6.66 (400) |
6.66 (400) |
|
Overall dimensions, mm, length |
1100 |
1500 |
|
width |
670 |
750 |
|
height |
1410 |
1590 |
|
Weight of delivery set, kg |
415 |
1100 |
The delivery scope includes service documents and compressor spare parts for warranty liability period.