Head Connection Schematics

Dia Vac Head Connection Configurations

Standard Dia-Vac® – Head Connection Configurations

Head Connection Schematic Description Standard Eccentric
Minimum Pressure** /
Minimum Vacuum ** /
CFM at 0 PSIG **
Systems Applications
Double headed pump,
both heads operating independently.
40 PSIG Pressure
25 InHg Vacuum
0.9 CFM each head.
For economical use of 2 heads pumping separately.
Double headed pump,
both heads in parallel.
40 PSIG Pressure
25 InHg Vacuum
1.7 CFM at 0 InHg.
For higher flow capacity.
Double headed pump,
series connected.
75 PSIG Limited. *
28 InHg Vacuum
0.9 CFM at 0 PSIG.
For higher vacuum or pressure.
Quad headed pump,
all heads in parallel.
40 PSIG Pressure
25 InHg Vacuum
0.9 CFM each head (3.6 total).
For higher flow capacity.
Quad headed pump,
all heads in series.
60 PSIG Limited. *
29.5 InHg Vacuum
0.9 CFM.
For higher vacuum capacity.
Quad headed pump,
parallel connection of two pairs of heads in series.
75 PSIG Limited. *
28 InHg Vacuum
1.7 CFM.
For higher vacuum & flow capacity.