VERDER VERDERAIR VA 40 Instructions And Parts List page 11

Installation
Changing the Orientation of the Fluid Inlet
and Outlet Ports
The pump is shipped with the fluid inlet (R) and outlet
(S) ports facing the same direction. See F
change the orientation of the inlet and/or outlet port:
1. Remove the screws (106 and 112) holding the inlet
(102) and/or outlet (103) manifold to the covers
(101).
2. Reverse the manifold and reattach. Install the
screws and torque to 9-10 N•m. See Torque
Sequence, page 30.
KEY
N 1/2 npt(f) Air Inlet Port
P Muffler; Air Exhaust Port is
3/4 npt(f)
R 1-1/2 in. Fluid Inlet DIN 40
Flange
S 1-1/2 in. Fluid Outlet DIN
40 Flange
N
P
102
Fig. 4 ______________________________________
. 4. To
IG
101 Fluid Covers
102 Fluid Inlet Manifold
103 Fluid Outlet Manifold
106 Fluid Outlet Manifold
Screws (Top)
112 Fluid Inlet Manifold
Screws (Bottom)
1
Torque to 9-10 N•m. See Torque
Sequence, page 30.
103
106
1
112
1
Fluid Pressure Relief Valve
Some systems may require installation of a pressure
relief valve at the pump outlet to prevent
overpressurization and rupture of the pump or hose.
See F . 5.
IG
Thermal expansion of fluid in the outlet line can cause
overpressurization. This can occur when using long
fluid lines exposed to sunlight or ambient heat, or when
pumping from a cool to a warm area (for example, from
an underground tank).
Overpressurization can also occur if the VERDERAIR
VA 40 pump is being used to feed fluid to a piston
pump, and the intake valve of the piston pump does not
close, causing fluid to back up in the outlet line.
KEY
R 1-1/2 in. Fluid Inlet DIN 40 Flange
S 1-1/2 in. Fluid Outlet DIN 40 Flange
V Pressure Relief Valve
Part No. 819.0159 (Stainless Steel)
1
Install valve between fluid inlet and outlet ports
2
Connect fluid inlet line here.
S
3
Connect fluid outlet line here.
101
R
Fig. 5 ______________________________________
04700B
Caution
S
2
R
819.4486
3
V
1
04702B
11