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9.
ACCESSORIES
9.1.
Mounting Kit:-This
includes a padded Bracket which holds the Atomiser around the
Motor Housing, leaving the Atomiser's vent holes clear. There
is also a mounting hole for a Solenoid Valve. The additional
mounting Plate provides mounting points for the Solenoid Valve,
Metering Valve and Dosing Valve
9.2.
Solenoid Valve:-This
is manufactured for Newland
Design by KIP Inc. of Connecticut, USA,
and is a stainless steel normally-closed 12 Volts DC valve with
a low-power coil (only 2.5 Watts).
The Valve's coil has spade
terminals to which may be connected flying leads from the Atomiser
carrying the regulated 12 VDC supply output by the Newland Design
Power Supply.
The Solenoid Valve may
be mounted close to the Atomiser using the Mounting Kit. If
mounted this way, there is only a small volume (~5 ml) of liquid
between the output of the Valve, and the end of the Feed Tube
in the Atomiser, which is generally expelled by the deceleration
of the Atomiser on switch-off, so ensuring virtually no liquid
left stagnant within the Atomiser.
The same Valve is available
with other coil voltages - eg. 24 VDC, 230 VAC, 115 VAC, if
required.
9.3.
Metering Valve:-
This is manufactured for Newland
Design by Key Industries Inc. of USA and
includes a Needle Valve to control the flow rate through the
Atomiser, and a flow indicator working by ball float within
a tapered tube. The material is polycarbonate. The principle
of operation limits the accuracy of flow measurement to use
with aqueous liquids. The standard maximum flow is 18 litres/hour,
but other scales are available. Maximum input pressure: 6 barg.
The Metering
Valve requires to be mounted vertically, with the input at the
bottom; the Mounting Kit provides for this.
9.4.
Hose Restrictor:-
This is a hose clamp operated by a thumbscrew. It fits around
the Flexible Tubing (O/D 8mm) available from Newland
Design, to give control of flow rate. This
method of flow control is not as precise as the Metering Valve,
but it makes no contact with the input liquid, and is suitable
for non-aqueous liquids.
9.5.
Dosing Valve:-
This is manufactured for Newland
Design by Conoflow Ltd. of Dorset, UK.
and is essentially a very precise needle valve, allowing close
control over very low flows. As little as one droplet per 10
seconds may be reliably dispensed by this valve. This Valve
is manufactured from stainless steel with a PTFE bush. Maximum
input pressure: 6 barg.
9.6.
Flexible Tubing:- This
is Food/Medical grade PVC tubing (8 mm O/D, 4.8 mm bore) which
fits the ¼" hose tail inputs to the Atomiser, Solenoid
Valve, Metering Valve and Dosing Valve. It also fits through
the Hose Restrictor.
9.7.
Spare Spray Heads & Feed Tubes:-
The porous Spray Heads used in the Atomiser are disposable (see
section 6, "Cleaning & Maintenance"). Spare Spray
Heads and spare Feed Tubes are available from Newland
Design. The standard material for the Spray
Head is polypropylene, but some other plastics, and porous stainless
steel are available to special order.
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