3
97112 / 97116
1
Pistol grip
2
Dispensing needle
3
Luer-Lok tip cap
4
Luer-Lok adapter
5
Manual actuator assembly with trigger lever
6
Valve assembly with 6.3 mm product feedline
7
Adjustment knob
(for the stroke of the shutoff piston) (97111 only)
8
Adjustment knob
(for the stroke of the shutoff piston) (97112, 97116)
9
Pneumatic actuator assembly with pressurized air connection
10
Spacer ring (97112 only)
Holder ring with finger switch (97116 only)
11
Attachment ring
2.2
Theory of Operation
An uncovered bottle of Loctite
product is placed directly into the reservoir and the reservoir lid is
clamped in place. The reservoir is then pressurized from a Loctite Controller using clean, filtered dry
air. Air within the reservoir will push down on the liquid in the bottle and force it through the product
feedline to the dispense shutoff valve.
The amount of product dispensed is controlled by three main factors:
– Amount of pressure in the reservoir.
– Length of time the shutoff valve remains open.
– Dispensing needle size.
97111
The opening of the Hand-held Applicator 97111 takes place manually by actuating the trigger lever.
97112
The opening of the Hand-held Applicator 97112 is pneumatically controlled. The start is initiated
with the foot switch.
97116
The opening of the Hand-held Applicator 97116 is pneumatically controlled. The start is initiated
with the finger switch.
97111 / 97112 / 97116
The shutting off of all hand-held applicators takes place mechanically by means of the spring return
of the shutoff piston to the rest position. A negative pressure (suck-back effect) is thereby produced
in the valve assembly 6 that prevents the product from continuing to run or drip out of the
dispensing needle 2. This suck-back effect (stroke of the shutoff piston) can be changed with the
adjustment knob 7 or 8.
☞
With the changing of the piston stroke, the dispensed quantity is also changed.
Description
2
8950087 Rev A Hand-Held Appl 5/1/00 3:39 PM Page 22
