tefen MixRite TF25 User manual

MixRite TF-25 User Guide | 1
USER GUIDE MixRite TF-25
Tefen is pleased to welcome you as a new
customer.
Please read this manual carefully before using the
product and follow the safety guidelines.
For additional information on our MixRite
proportional dosing pumps please visit our wesite -
https://tefentech.com/downloads
or Scan the QR code below
SAFETY
Warning:
During operation, the operator must stay in
front of the MixRite pump and wear protective
eyewear, clothing and gloves.
Be extremely careful in the presence of
hazardous substances (e.g. corrosives, toxins,
solvents, acids, caustics, flammable, etc.).
The user must adhere to the recommendations
given by the chemical product manufacturer.
Caution:
Use proper tools. DO NOT USE METALLIC TOOLS.
Use only plastic connectors.
It is the responsibility of the owner/operator
to make sure water flow and pressure do not
exceed the MixRite specifications.
Before applying any aggressive chemicals,
please consult your distributor to confirm
compatibility with the dosing pump.
When connecting a MixRite either to the
public water supply or to its own water
source, you must respect the regulations in
force concerning protection of the source i.e.
backflow prevention, etc.
Important notes:
Ensure water flow is according to the arrows on
the unit.
Use 120 mesh–130 micron filter. For water with
high particle content, use 250 mesh – 60
micron filter depending on your water quality.
It is recommended to place an anti-siphon
valve on the downstream side of the dosing
pump in installations in which there is a risk of
siphoning.
Do not operate your MixRite when the additive
tank is empty.
For installations subject to water hammer/
excessive flow, a protection device such as a
check valve or union ball check must be fitted
(pressure/flow control system).
SYSTEM OVERVIEW
Water Pressure
1-8 bar
(14.5-116 psi)
Working Temp.
4-40º C
(39.2-104º F)
Flow Rate
0.2-25 m3/h
(0.9-110 GPM)
Coupling
2” or 63 mm
L (Height)
On/Off Air Release
Max. 1030 (40.5") 660 (26")
Max. 880 (34.6") 900 (35.4")
MixRite TF-25
!
!
340 (13.3”)
~1328 (52.2”)
~650 (25.6”)
865 (34”)
855+100 (33.6”+3.9”)
MIXRITE TF-25-FULL-V.2-1023

2 | MixRite TF-25 User Guide
1. INSTALLATION
Fig. 2 - Installation illustration
Important!
If the water line is higher than the MixRite itself, there is a possible risk of water and
additive flowing back through the MixRite (see Fig. 2). In such a case, installing a non-
return valve downstream is necessary.
The strainer must be suspended at least 10 cm (4") above the bottom of the additive
tank to avoid sucking up the insoluble particles that may damage the pump assembly.
Do not put the strainer on the ground.
Water hammer/excessive flow:
For installations subject to water hammer, a protection device such as a check valve or
union ball check must be fitted (pressure/flow control system).
For automatic installations, slow opening and closing solenoid valves are preferable.
In an installation where the MixRite serves several sectors, the closing of one sector
and the opening of another sector must be done at the same time (simultaneous
operation of the solenoid valves).
Note: MixRite TF-25 can be installed
on a bypass line as well.
Solution Outlet
Main Water Inlet
Additive
Suction Inlet
On/Off Knob
Adjustment
Sleeve Nut
Flow Direction
10 cm
Valve
Manometer
Filter
Pressure
regulator
Back flow
preventor
Anti
siphon
valve
Valve
Water Flow
Direction

MixRite TF-25 User Guide | 3
2. INSTALLATION
Mounting MixRite TF Connecting suction tube
Adjusting dosage MixRite cover options
3. MAINTENANCE
Important!
To maintain the dosing pump in good condition, it is advisable to operate the pump
with suction of clean water after each use.
Regular yearly maintenance will help extend the lifespan of your MixRite dosing pump.
In addition, kit seals need to be replaced every year.
Regularly clean the water filter at the pump inlet and the additive suction filter.
If the pump is planned to be out of use for a long period of time, operate the pump for
a few minutes with the suction tube immersed in a tank with clean water to remove
additive residues from the pump, preventing them solidifying in the pump.
1
1
2
34
5
6
2
3
4
+
-
Air release cover
On/Off cover
On modeOff mode
On
Off
Press

4 | MixRite TF-25 User Guide
If there is a fear of frost, and the temperature falling below 4°C (39ºF), empty the water
from the pump. To do this, close the entry and exit valves securely. Open and dismantle
record nut that connects the suction pipe. Press the backflow prevention valve using
a finger or a thin rod, allowing all the water that has collected in the pump to drain out
while pressing the air-release valve at the top of the pump.
It is advisable to carry out the maintenance of the pump body whenever soluble
products are used. To carry out the maintenance, remove the pump body and wash it
thoroughly with plenty of clean water. When finished and before reassembly onto the
motor body, lubricate the seal with silicone.
An air inlet, impurity or chemical damage to a seal can interrupt the dosing function.
It is recommended to periodically check that the solution is being correctly drawn up
into the MixRite.
Change the suction tube as soon as it seems damaged by the chemical.
It is advised to relieve the pressure after use.
3.1 Rinsing and Cleaning the Unit
Rinsing of the MixRite is required when changing chemicals and before handling the
MixRite, to avoid any contact with the chemical.
Rinse the MixRite as follows:
1. Rinse the unit by pumping clean water from the additive container.
2. Wash the external surface of the unit with clean water.
3.2 Cleaning and Refitting the Suction Check Valve
Before removing Suction Check Valve, turn off the water supply and allow the pressure
to drop to zero.
Remove Suction Check Valve.
Rinse parts of Suction Check Valve with clean water, re-assemble them and ensure
that the spring is in good working condition.
Re-assemble Suction Check Valve in the reverse order.
3.3 Action Frequency
Action Frequency
General Check After each use
Cleaning Cycle Yearly
Replace Seals Yearly
Replace Other Components As needed

MixRite TF-25 User Guide | 5
4. TROUBLESHOOTING
Subject Check Solution
The pump isn’t
working
Direction of arrows on the
pump is the same as water
flow.
Install the pump so that the
arrows point in direction of
water flow
Inlet and outlet valves are
open. Open the valve.
Inlet filter is not clogged. Clean the filter.
Line’s water pressure. Make sure there is water
pressure in the line – check
the system input filter and
make sure it is clean.
Springs are not broken. Replace the motor.
Cylinder is not scratched. Replace cylinder.
Piston seals are not
damaged. Replace cylinder.
Bypass installation* pump
test at low pressure. Replace the seals.
Bypass installation*
make sure the pressure
difference.
Disconnect the water outlet
hose
from the outlet, by installing a
bypass make sure there is no
water
returning to the pump. If the
pump is working check the ∆P
– as
described in the item below.
The pump stopped
working
There is no water flow at the
appropriate pressure.
Open the main valve. Open
the nut locking the motor
cover, remove the motor
cover, and remove the
mechanism.
Check if the motor seals are
defective.
The water pressure at the
outlet of the pump is equal
to or greater than the water
pressure at the
main line.
Check if the springs are
broken. Replace the motor seals.
Check if one of the parts of
the mechanism is broken. Replace the motor seals.

6 | MixRite TF-25 User Guide
Subject Check Solution
MixRite does not draw
additive.
The suction filter is blocked. Clean the filter.
Dismantle the pump unit
and check if the suction
seal is defective.
Replace the suction seal.
The non-return valve is
defective. Replace the non-return valve.
MixRite makes
scratching noises.
Check if there is liquid in the
additive container. Add liquid to the container.
Check if the suction pipe is
immersed and not folded. Straighten or change the pipe.
Check suction filter to see
if it is blocked and if it is
immersed in the additive
tank.
Clean and rinse suction
filter.
Fill liquid into tank to cover
filter.
Water flowing back
into additive container. Check valve. Clean or replace the check valve.
5. SPARE PARTS
5.1 MIXRITE TF-25 STD Model
Cat. No. Kit #
%Seal Suction Piston Suction Tube Check Valve Cylinder Motor
282301X00XX
282401X00XX
282501X00XX
0.1%-1% 35000000008 35000000019 35000000049 35000000022 35000000009 35000000005
282302X00XX
282402X00XX
282502X00XX
0.3%-2.5% 35000000002 35000000020 35000000049 35000000022 35000000011 35000000005
282305X00XX
282405X00XX
282505X00XX
1%-5.5% 35000000003 35000000021 35000000049 35000000004 35000000012 35000000005
Recommended sets
per dosing pump 100/100 5/100 10/100 10/100 10/100 5/100

MixRite TF-25 User Guide | 7
5.2 MIXRITE TF-25 CLP0 Model
5.3 MIXRITE TF-10 Model - Cover
MixRite TF-5 Model Air Release On/Off Electric DC Electric AC Hydraulic
STD 35000000015 35000000007 35000000017 35000000024 35000000016
CLP0 35000000006
Recommended sets per
dosing pump 5/100 5/100 5/100 5/100 5/100
Cat. No. Kit #
%Seal Suction Piston Suction Tube Check Valve Cylinder Motor
282301XCLPO
282401XCLPO
282501XCLPO
0.1%-1% 35000000008 35000000019 35000000049 35000000022 35000000009 35000000053
282302XCLPO
282402XCLPO
282502XCLPO
0.3%-2.5% 35000000002 35000000020 35000000049 35000000022 35000000011 35000000053
282305XCLPO
282405XCLPO
282505XCLPO
1%-5.5% 35000000003 35000000021 35000000049 35000000004 35000000012 35000000053
Recommended sets
per dosing pump 100/100 5/100 10/100 10/100 10/100 5/100

8 | MixRite TF-25 User Guide
6. SPECIFICATIONS
Pressure Loss Max. injection rate/h
bar psi
1.60 23.2
1.40 20.3
1.20 17.4
1.00 14.5
0.80 11.6
0.60 8.7
0.40 5.8
0.20 2.9
0.00 0.00
1000 3000 4000 5000 10000 15000 20000 25000 l/h
4.4 13.2 17.6 22.0 44.0 66.0 88.0 110.0 gpm
TF-25 5%
TF-25 2%
TF-25 1%
Injection Rate
L/h gph
1300 344
1200 317
1100 291
100 264
900 238
800 212
700 185
600 159
500 132
400 106
300 79
200 53
100 26
0 0
1% 2% 5%

Tefen Flow & Dosing Technologies Ltd.
Kibbutz Nahsholim, 3081500 Israel I Tel. [phone] I [email protected] I tefentech.com
7. LIMITED WARRANTY
Tefen Flow and Dosing Technologies Ltd. (“Tefen”) will replace all parts shown to
be defective in material or workmanship during a period of twelve months from
the date of purchase by the original purchaser (“Warranty Period”). Warranty
shall be limited to Warranty Period and shall not be extended in any event.
To obtain warranty replacement of a part, the MixRite must be returned with
original proof of purchase receipt to Tefen or authorized distributor and
thereafter recognized as defective after examination by the technical services of
the manufacturer or distributor.
The MixRite must be flushed of any chemical and sent to the manufacturer or
distributor prepaid but will be returned free of charge once repairs are made if
found to be covered by the warranty.
This warranty only covers circumstances where the part has failed due to defects
caused by the manufacturing process. This warranty is invalid if the defects are
found to be due to the product’s misuse, inappropriate use of tools, negligence,
changes and/or alterations made in the Product not by Tefen, combination and/
or use with other products not manufactured by Tefen, lack of maintenance
and/or defective installation or environmental accidents or corrosion by foreign
bodies and liquids found within or in proximity to the MixRite.
The seals and “O” rings are not covered under warranty, nor is damage to the
MixRite caused by water impurities such as sand. A filter (200 Mesh) must be
used in front of the unit for this warranty to be valid.
Tefen declines any responsibility if the MixRite is not used in compliance with the
operating instructions and tolerances as indicated herein.
There are no warranties, express or implied, which will extend beyond those
described above.
TEFEN OR AUTHORIZED DISTRIBUTOR SHALL NOT BE LIABLE FOR ANY LOSS OF USE,
SALES OR PROFIT OR FOR ANY INDIRECT, CONSEQUENTIAL OR INCIDENTAL DAMAGES
CAUSED BY OR SUFFERED AS A RESULT OF THE SALE OR USE OF THE PRODUCT AND
SHALL BE LIMITED TO THE CONSIDERATION ACTUALLY PAID BY YOU FOR THE PRODUCT.
This warranty is personal, and you may not assign, transfer, sell, indorse, pledge
its rights under this warranty to any third party without Tefen’s prior written
consent.
Any dispute arising in connection with this warranty shall be referred to the
competent court in Tel Aviv Israel, which shall have exclusive jurisdiction in
relation to all matters which may arise out of or in connection with this warranty.
The provisions of the substantive law prevailing in Israel shall govern this
warranty.