28
Installation
Nylon tube
Release sleeve
Fitting
Push-in joint
(2) Pull out the tube.
(1) Press the release
sleeve downward.
✽
If it is stiff,
use a wrench
or other tool.
■
PVC braided hose (1m, suction side)
• When bending the hose, provide sufficient leeway in the bending so that the
hose will not break. Also ensure that it will not be rubbed against or trodden on.
• Insert the hose firmly so that it will not become disconnected, and tighten the
hose nuts securely. Do not excessively tighten the hose nuts. Doing so may dam-
age or break the joint.
• If the temperature of a liquid or ambient temperature is higher than room tem-
perature, the tightening force will be reduced, and the hose may become discon-
nected. After operation has started, tighten up the hose nuts as appropriate.
• When tightening the hose nuts, hold the hose to prevent it from being twisted.
The joints and other areas may be loosened by the return force of the hose.
• The pump comes with a 1-meter long hose for the suction side. When longer hose
is used, the pressure loss may exceed the pump’s maximum discharge pressure
so thicker hose will be required. Provide details on the (1) viscosity of the liquid,
(2) length of the pipes (how they are positioned) and (3) specific gravity of the liq-
uid to a TACMINA representative who will select the appropriate hose size.
• When disconnecting the hose for jobs such as maintenance and then afterwards
re-connecting the same hose, cut about 10 mm off the end of the hose before
re-using them.
■
Nylon tube (2m, discharge side)
• When bending the tube, provide sufficient leeway in the bending so that the tube will not break. Also ensure that it will
not be rubbed against or trodden on.
• The pump comes with a 2-meter long tube for the discharge side, but make the distance between the pump and injec-
tion point as short as possible, and cut off the excess part of the tube.
• Insert the tube firmly so that it will not become disconnected.
• When disconnecting the tube for jobs such as maintenance and then afterwards re-connecting the same tube, cut
about 10 mm off the end of the tube before re-using them.
Connecting
Model for injection of boiler chemicals (VTCET)
Retaining ring
Hose nut
Hose joint
PVC braided hose
(4×9)
●
Connecting
(1) Cut the end of the tube at right angles using a sharp blade.
●
Disconnecting & re-connecting
!
CAUTION
• Before disconnecting the tube, make absolutely sure that no pressure is being applied inside the tube.
• Using your thumb and forefinger, press the release sleeve against the
body side, and pull the tube straight out without twisting it.
✽
If the fitting tab is biting deeply into the tube, making it difficult for the
tube to be pulled out, use a wrench or other tool to push the release
sleeve down firmly.
✽
As a guideline, the tube may be mounted in place and removed five
times.
✽
When the tube has been connected, pull it up gently, and check that it is
secured firmly. If it appears that the tube can be pulled out, it means that
the joint tab has been damaged, in which case replace the joint.
✽
Use the tube supplied. Use of any other tube may damage the joint.
blade
tube
(2) Insert the end of the tube straight into the fitting body of the
push-in joint until it touches the back end.
✽
Pull the tube gently by hand, and check that it does not come free.
09-32̲PZD総合取説̲E.indd 28
09-32̲PZD総合取説̲E.indd 28
2010/07/22 8:42:34
2010/07/22 8:42:34
