Chapter 2 Compressor Specifications and Structure
UD-series Screw Compressors 2.2 Model designation of the Compressor
2-2
2.2 Model Designation of the Compressor
The meaning of the type designation, which is engraved on the MODEL column of the compressor
nameplate, is as follows.
[1] Working fluid
NH
3
, R134a, R404A, R507A
Propane, propylene, CO2
R407C, R407F, R410A
[2] Rotor diameter
[3] Rotor length
No setting for rotor diameter 125
[4] Discharge direction
[5] Short cut rotors
1) Shortcut rates of 5 %, 7 % and 11 % in principle.
2) It cannot be used at H port.