VERDER VERDERAIR VA 40 Instructions Manual page 7

Installation
Mountings
Caution
The pump exhaust air may contain contaminants. Ventilate
to a remote area if the contaminants could affect your fluid
supply. See Air Exhaust Ventilation on page 10.
1. Be sure the mounting surface can support the weight of
the pump, hoses, and accessories, as well as the stress
caused during operation.
2. For all mountings, be sure the pump is bolted directly to
the mounting surface.
3. For ease of operation and service, mount the pump so
the air valve cover (2), air inlet, and fluid inlet and outlet
ports are easily accessible.
4. Rubber Foot Mounting Kit 819.4333 is available to re-
duce noise and vibration during operation.
Fluid Suction Line
1. The pump fluid inlet (R) is a 1–1/2" raised face flange.
Refer to Flange Connections on page 8.
2. If the fluid inlet pressure to the pump is more than 25% of
the outlet working pressure, the ball check valves will not
close fast enough, resulting in inefficient pump operation.
3. At inlet fluid pressures greater than 1.05 bar, diaphragm
life will be shortened.
4. See the Technical Data on page 31 for maximum suc-
tion lift (wet and dry).
Fluid Outlet Line
Warning
A fluid drain valve (J) is required to relieve pressure in the
hose if it is plugged. The drain valve reduces the risk of
serious injury, including splashing in the eyes or on the skin,
or contamination from hazardous fluids when relieving
pressure. Install the valve close to the pump fluid outlet.
See Fig. 2.
1. The pump fluid outlet (S) is a 1–1/2" raised face flange.
Refer to Flange Connections on page 8.
2. Install a fluid drain valve (J) near the fluid outlet. See the
Warning above.
3. Install a shutoff valve (K) in the fluid outlet line.
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