Installation
3A8216B
7
Installation
The typical installation shown in F
. 1 is only a guide for
selecting and installing a hose reel system. The
components shown are the minimum requirements for
all dispensing systems. However, it is not an actual
dispensing system design. Contact your Graco
Distributor for assistance in designing a system to suit
your needs.
NOTE: The air and fluid accessories used in your
system must be properly sized to the pump. Refer to
your pump manual for selecting pump accessories.
Grounding
Pump:
follow manufacturer’s recommendations.
Hose reels:
connect to a true earth ground when
dispensing petroleum products. This can be done by
bolting the reel to a grounded structure, or by using a
conductive inlet hose to connect to a grounded piping
system.
Fluid hoses:
use only conductive hoses when
dispensing petroleum products.
Dispense valves:
use thread sealant when connecting
the meter to the hose. Do not use PTFE tape on the
pipe joints, as it may cause loss of ground across the
pipe joint.
Waste container while flushing:
use a grounded metal
container. Hold the hose coupling or metal part of the
meter firmly to the side of the waste container while
flushing.
Required Components
Be sure to have the following components before
beginning installation.
•
Hose inlet kits (L)
•
A mounting surface suitable for the weight of the
reel. NOTE: most reels will be mounted directly to a
wall or bench top, so a bracket is not necessarily
required
•
Dispense valves (N)
A ground wire (G), bleed-type master air valve (E),
and fluid drain valve (H) are required in your system
installation. These components help reduce the risk
of serious injury, including fire and explosion,
injection, and splashing in your eyes or on the skin.
•
The ground wire must be connected to the pump
grounding lug and to a true earth ground
according to your local codes.
•
The bleed-type master air valve relieves air
trapped between this valve and the pump after
the air is shut off. Trapped air can cause the pump
to cycle unexpectedly. Locate the valve close to
the pump.
•
The fluid drain valve assists in relieving fluid
pressure in the pump, hose, and dispense valve.
Triggering the valve to relieve pressure may not
be sufficient to relieve pressure when the Fluid
Shutoff Valve (J) is closed.
The equipment must be grounded to reduce the risk
of static sparking. Static sparking can cause fumes to
ignite or explode. Grounding provides an escape wire
for the electric current.