dosatron D8R User manual
D8R
8 m3/h 0.2% to 2% [40 GPM - 1:500 - 1:50]
OWNER’S MANUAL
You have just become the owner
of a DOSATRON proportional dosing pumps
and we congratulate you on your choice.
The development of this model is the result of over
25 years experience.
Our engineers have placed the DOSATRON series
at the forefront of technical development in the field
of non-electric proportional dosing pumps.
The choice of materials used in manufacture was most meticulous
in order to resist chemical attack from the great majority
of injectable products on the market.
This DOSATRON will, as time goes by,
prove itself to be a most faithful ally.
A little care and attention, regularly spent, will guarantee you
an operation in which the word breakdown has no place.
PLEASE, THEREFORE, READ THIS MANUAL CAREFULLY
BEFORE PUTTING THE DOSATRON INTO OPERATION.
Important !
The serial number of your DOSATRON is stamped on the bell housing.
Please record this number in the space below and refer to it when you call
your distributor for information, parts, and service.
Ref. # Serial # Purchase Date
DOSATRON 29
SUMMARY
CHAPTER 1
CHAPTER 2
CHAPTER 3
CHAPTER 4
CHAPTER 5
© DOSATRON INTERNATIONAL S.A. 2003 -
CLEANING THE WATER FILTER Page 18
HOW TO DRAIN THE DOSATRON Page 20
FITTING THE SUCTION TUBE Page 21
ADJUSTING THE INJECTION Page 22
INTERNATIONAL CONVERSIONS Page 23
CHANGING SEALS IN THE INJECTION
ASSEMBLY
Page 24
INSTALLATION PAGE 5
PUTTING THE DOSATRON INTO ORDER PAGE 11
PRECAUTIONS PAGE 15
MAINTENANCE PAGE 17
TROUBLESHOOTING PAGE 31
30 DOSATRON
SPECIFICATIONS
- Practical operating flow range : Min. 0.5 m3 /h [2.2 US GPM]
Max. 8 m3 /h [40 US GPM]
- Operating pressure : 0.15 bar to 8 bar [2.2 - 116 PSI]
- Concentrated additive injection : Min. 1 l/h [0.56 US fl. oz/min]
Max. 160 l/h [0.70 US GPM]
- Maximum operating temperature : 40° C [104° F]
- Externally adjustable injection ratio : 0.2% to 2% [1:500 - 1:50]
- Connections : Ø 40 [1"1/2] NPT/BSP
- Hydraulic motor capacity : About 1.7 l [0.45 US Gallons] for every 2 clicks of
the piston
- Self-priming : 4 meters
NOTE : THE DOSATRON IS NOT PRESET, see chapter ADJUSTING THE
INJECTION RATE
UNIT SIZE
Diameter : 18.4 cm [7 1/4"]
Total height of the DOSATRON : 58 cm [22 7/8"]
Width : 30 cm [11 4/5"]
Weight : 4 kg approx. [~ 8.8 US lbs]
SHIPPING CONTENTS
- 1 DOSATRON
- 1 mounting bracket for DOSATRON
- 1 suction tube of concentrated additive
- 1 by-pass tube Ø 6 x 9 [1/4" ID x 3/8" OD]
- 1 strainer
- 1 owner's manual
PACKAGE SIZE
60 x 36.5 x 24 cm [23 5/8" x 14 3/8" x 9 7/16"]
PACKAGE WEIGHT
5.5 kg approx. [~ 12.15 US lbs]
DOSATRON 31
Precise, simple and reliable
Installed directly in the wate
r
supply line, the DOSATRON
operates by using wate
r
pressure as the power source.
The water activates the
DOSATRON, which takes up
the required percentage o
f
concentrate. Inside the
DOSATRON, the concentrate is
mixed with the water. The wate
r
pressure forces the solution
downstream.
The dose of concentrate will
be directly proportional to the
volume of water entering the
DOSATRON, regardless o
f
variations in flow or pressure
which may occur in the main
line.
SOLUTION WATER + % ADDITIVE
CLEAR
WATER
CONCENTRATED
ADDITIVE TO BE
DOSED
MOTOR
PISTON
DOSING PISTON
ADJUSTMENT
(%) RATIO
32 DOSATRON
ACCESSORIES
MAINTENANCE
ADDITIONAL OPTIONS AVAILABLE
Call your authorised distributor or the manufacturer.
DOSATRON 33
CHAPTER 1
INSTALLATION
RECOMMENDATIONS
1 - GENERAL REMARKS
- When connecting a DOSATRON 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.
- In a case where the water installation is higher than the DOSATRON itself,
there is a possible risk of water and concentrate flowing back through the
DOSATRON. In this case, installing a non-return valve downstream is
recommended.
- Do not install the DOSATRON just above an acid container, (risk of acid fumes
attacking the DOSATRON) and protect it, with a lid, from possible contact with
corrosive products.
- Do not install the DOSATRON on the suction side of the supply pump (risk of
siphoning).
- The DOSATRON should be protected from frost and from sources of excessive
heat.
2 - WATER WITH HIGH PARTICLE CONTENT
- It is imperative to set up a filter (300 mesh - 60 microns) upstream of the
DOSATRON.
3 - 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 a DOSATRON 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).
34 DOSATRON
ASSEMBLING THE DOSATRON
ASSEMBLY SHOULD BE CARRIED OUT WITHOUT THE USE OF TOOLS
The DOSATRON is delivered with :
- a mounting bracket,
- a suction tube with a strainer,
- a by-pass tube Ø 6 x 9 [1/4" ID x 3/8" OD].
The bracket enables the DOSATRON to be fixed to a wall.
- Slide dovetails on the pump body (Fig. 1-A) into the support bracket (Fig. 1-S).
- Remove the nuts (Fig. 1-E) and ferrules (Fig. 1-C) from the DOSATRON inlet
and outlet.
- Remove the plastic caps (Fig. 1-B) which block the inlet and outlet of your
DOSATRON before connecting to the water supply.
- Make sure the watertight seals at the inlet and outlet of the DOSATRON are
correctly positioned :
First position the <O> ring (Fig. 1-J) and then the spacing ring (Fig. 1-G).
Fig. 1
A
EC B G J
S
B
DOSATRON 35
For connecting to polyethylene or polypropylene pipe :
- Bevel the end of the pipe and slide on nut (Fig. 2-E) and then ferrule (Fig. 2-C).
- Slide pipes into water inlet and outlet (Fig. 2) as far as they will go.
- Push one ferrule (Fig. 2-C) against the inlet and the other against the outlet.
- Tighten the nuts (Fig. 2-E).
For connecting to PVC pipe :
- Proceed as for the polyethylene and polypropylene pipes but spread PVC
adhesive on the pipe where the ferrules are to be mounted.
- Then place the ferrules over the pipe using both thumbs in the slot to widen the
ferrule (Fig. 2-C) and avoid scraping off the adhesive, then tighten the nut.
NOTA :Wait for one hour before putting into operation.
The (nut and) ferrule made of polyacetal (Fig. 2-C) will not adhere to the
PVC glue and (they) can therefore be dismantled easily at a later date.
Fig. 2 C
E
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