SD - Single Stage - Double Acting
SD (Single Stage – Double Acting) boosters compress gas during both piston strokes. The double-acting design provides higher flow rates and faster cycles compared to single-acting models.
ADVANTAGES
• Compression during both strokes
• Higher productivity
• Improved cycle efficiency
• Reduced consumption
• Faster filling times
• Ideal for demanding industrial applications where drive-air efficiency is important
Examples of use
FINAL PRESSURE CALCULATION
PB = i × PL + PA
PA = initial gas pressure
PL = drive pressure
PB = final pressure
i = pneumatic compression ratio
Example:
PL = 50 bar
i = 1:25
PA = 10 bar
PB = (25 × 10) + 50 = 300 bar
Technical data
SD 100 CPDD 40 A
Pressure ratio:
1:6 - 1:8
Max boost pressure:
138 bar
SD 100 CPDD 40 P
Pressure ratio:
1:39 - 1:25 - 1:16
Max boost pressure:
414 bar
SD 100 CPDD 60 A
Pressure ratio:
1:1
Max boost pressure:
68.9 bar
SD 100 CPDD 60 P
Pressure ratio:
1:16 - 1:25 - 1:39
Max boost pressure:
414 bar
SD 125 CPDD 60 P
Pressure ratio:
1:25 - 1:39 - 1:61
Max boost pressure:
414 bar
SD 125 CPDD 60 A
Pressure ratio:
1:61 - 1:39 - 1:25 - 1:17
Max boost pressure:
689 bar
SD 125 CPDD 120 P
Pressure ratio:
1:17 - 1:25 - 1:39
Max boost pressure:
414 bar
SD 125 CPDD 120 A
Pressure ratio:
1:17 - 1:25 - 1:39
Max boost pressure:
414 bar
SD 140 CPDD 100 P
Pressure ratio:
1:21 - 1:31 - 1:48 - 1:76
Max boost pressure:
689 bar
SD 140 CPDF 120 A
Pressure ratio:
1:15 - 1:25 - 1:43 - 1:62 - 1:97 - 1:153
Max boost pressure:
1378 bar
SD 140 CPDDF 120
Pressure ratio:
1:153 - 1:97 - 1:62 - 1:43 - 1:25 - 1:15
Max boost pressure:
1378 bar
SD 200 CPDDF 120
Pressure ratio:
1:128 - 1:89
Max boost pressure:
1378 bar
SD 250 CPDDF 120
Pressure ratio:
1:200 - 1:140
Max boost pressure:
2068 bar