Grasso Screw compressors Types C ... XF Product Information - GEA ...
Grasso Screw compressors Types C ... XF Product Information - GEA ...
Grasso Screw compressors Types C ... XF Product Information - GEA ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
PRODUCT INFORMATION<br />
GRASSO SCREW COMPRESSORS<br />
<strong>Types</strong> C ... <strong>XF</strong><br />
INSTALLATION CONDITIONS, VIBRATION, SOUND<br />
7 INSTALLATION CONDITIONS, VIBRATION, SOUND<br />
INSTALLATION CONDITIONS:<br />
compressor mounting surface<br />
- overall evenness of mounting feet: 0.5 mm<br />
- shim thickness: ≥ 25 mm<br />
Ambient temperature -20°C ...50 °C *)<br />
*) All requirements described in chapter "Operating Limits" must be observed, Chapter 5, page 19.<br />
MOUNTING THE COMPRESSOR:<br />
Hint!<br />
For the mechanical mounting of the screw compressor on the<br />
compressor package an angle compensating support such as<br />
a spherical washer-conical seat-combination according to<br />
DIN 6319 has to be used, refer Figure 16, page 46.<br />
fig. 16: spherical washer-conical seat-combination<br />
1 spherical washer<br />
2 conical seat<br />
3 screw compressor foot<br />
4 compressor package (frame)<br />
VIBRATIONS:<br />
Main exciting frequencies [Hz]<br />
at 3000 rpm (3600 rpm)<br />
Frame size<br />
C, D, E, G, H, L, M, N, P, R, S, T, V, W, Y, Z, XA, XB, XC, XD, XE, <strong>XF</strong><br />
f 1 50 (60)<br />
f 2 100 (120)<br />
f 3 250 (300)<br />
f 4 500 (600)<br />
Frame size<br />
Balance grade of rotors<br />
C, D, E, G H, L, M, N<br />
P, R, S, T, V, W, Y, Z, XA,<br />
XB, XC, XD, XE, <strong>XF</strong><br />
Balance grade G (mm/s)<br />
acc. DIN ISO 1940<br />
G 6,3 G 4.0 G 2.5<br />
46 _101011_pi_sc_gbr_2_.doc <strong>GEA</strong> Refrigeration Germany GmbH<br />
23.03.2012
Change language