Hawle HAWIDO 1703 User manual

manual
On/Off valve for electrical remote control - closed without current®

HAWIDO - REGULATING VALVES
Instruction for
On/Off valve for electrical drive
Type 1703/04
ND40 - ND100
Keep this instruction manual at the location of the valve!

Example of rating plate
After the commissioning, enter the following data and make use of this additional information regarding the
valve type, pressure and flow ratios when consulting the manufacturer or the supplier or asking them questions:
Serial number: ................................................... DN ……………… PN: …………………..
Year of manufacture:...................................................
Anleitung Stand September 2018 - 1/plü Subject to technical changes!

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CONTENTS
A. DESCRIPTION 2
1. FUNCTION 2
2. GENERAL SAFETY INSTRUCTIONS 2
3. RECOMMENDED INSTALLATION 3
B. COMMISSIONING 4
1. FUNCTIONAL DIAGRAM (1703) 4
2. PREPARATORY WORK 4
3. VENTING 4
4. SETTING-UP 5
5. SETTING THE REACTION SPEED 5
6. CHECKING FOR LEAKAGE 5
7. EMERGENCY MANUAL OPERATION 1703 5
C. FAULT FINDING 6
D. PUTTING OUT OF SERVICE AND MAINTENANCE 7
1. PUTTING OUT OF SERVICE 7
2. MAINTENANCE AND SERVICE 7
2.1 GENERAL INFORMATION 7
2.2 ANNUAL FUNCTIONAL CHECKS 7
2.3 4TO 5-YEAR MAINTENANCE 8
3. REPAIR KITS AND SPARE PARTS 9
3.1 BASE VALVE DN 40 TO DN 100 (DRAWING)10
3.2 MAIN VALVE (PARTS LIST)11
3.3 CONTROL LINE INDIVIDUAL PARTS AND ACCESSORIES 12
E. ANNEX 17
1. TORQUES 17
F. HAWLE IN EUROPE 18

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A. Description
1. Function
The HAWIDO 1703 and HAWIDO 1704 are valve units with an electrical solenoid valve. The filling or
emptying of the control chamber of the main valve (1) are controlled by the electrical solenoid valve (5). The
pressure of its own medium therefore closes or opens the valve. Depending on the electrical solenoid valve
type (5), the valve can be positively or negatively controlled, i.e. the main valve (1) is normally-closed and
opens under voltage (HAWIDO 1703), or it is normally open and closes when under voltage (HAWIDO
1704).
The closing speed can be adjusted using the one-way flow restrictor (4).
Technical features:
Medium: Drinking water
Pressure stages: PN 10 (from DN 200 Standard)
PN16 (up to DN150 Standard)
PN25
Flanges: Connection dimensions according to DIN 1092 -2
Pressure gauge: EN 837-1; Accuracy class 1.6
Main valve material: EN-GJS-400-15
Temperature range: 2 –40 °C
2. General safety instructions
These instructions must be read through carefully and understood before starting the commissioning.
Damage to property and injuries to persons could occur as a result of improper installation, commissioning,
operation and maintenance.
The Hawle regulating valve (HAWIDO) has been designed for use in drinking and process water supplies.
Other application media only after consultation with the manufacturer.
The technical regulations (e.g. SVGW, ÖVGW, DVGW...) and codes of practice (e.g. VDE, VDI ...), laws and
standards are taken as a minimum standard, and must be adhered to and applied.
Work on electrical installations (e.g. installation of magnetic position switches, solenoid valves, etc.) may only
be carried out by personnel authorised for this work.
In principle, the responsibility for the layout, the installation position, the installation and the commissioning of
the fittings in the pipe work lies with the designer, the installation company and/or the operator. Design or
installation errors can adversely affect the safe operation of the regulating valve, and can represent a
significant risk. Please consult us in case of doubt.

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3. Recommended installation
Before the installation of the fitting, the pipe lines must be carefully blown or flushed through to prevent any
foreign material, such as pieces of wood, stones etc., from entering the regulating valve.
The HAWIDO must be installed horizontally with the valve cover upwards (other models available on
request). We recommend that a gate valve and a dirt trap be fitted in front of the valve, as well as the
mounting of a gate valve at the outlet.
During maintenance, the valve must be decommissioned. A by-pass installation should be considered here
in order to ensure the supply.
Before the installation, check that no coarse foreign objects can penetrate into the HAWIDO.
Please contact us for other types of installation.
Installation note:
The water will be drained out of the valve chamber when the solenoid valve is switched (5). This water must
be led to the sewage system in accordance with local situation.

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B. Commissioning
1. Functional diagram (1703)
Components
1 Main valve 1200
2 Ball valve
3 Filter
4 One-way flow restrictor (flow control valve)
Solenoid valve(drawn for Hawido Valve 1703,for
Hawido Valve 1704 solenoid valve no flow
without power)
6 Pressure gauge with ball valve
7 Valve opening limiter
electrical position indicator (optional)
2. Preparatory work
Before commissioning the valve, check that the gate valves on the inlet and outlet sides of the valve are
closed and that the flange connections have been correctly tightened and sealed.
Attention: Electrical work may only be carried out by qualified specialist personnel!
On the valve:
•The ball valve (2A) must be opened and the lock nut of the adjusting screw on the one-way flow
restrictor (4) must be loosened
•Unscrew the adjusting screw on the one-way flow restrictor (4) by approximately 10 turns. (The line
to the control chamber is open).
•Loosen the threaded pin in the central plug on the position indicator by a few turns.
•Slightly loosen a union of the control line at its highest point (approximately one turn).
•The solenoid valve (5)- must be free from voltage for the Hawido 1703 or- must have voltage for
the Hawido 1704
3. Venting
Procedure:
Loosen the threaded pin of the optical position indicator 2 –3 turns with a screwdriver (caution: Do not
completely unscrew the threaded pin!)
Slowly open the inlet gate valve on the inlet side until water flows into the valve. The valve fills with water
and the air escapes through the slightly open screw connection and the vent hole in the plug.
Once the valve venting procedure has caused all the air to be expelled from the control line, retighten the
plug screw and the loosened union. Check that all the fittings are properly sealed, and re-tighten if
necessary.
Slowly open the inlet gate valve completely.

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Check: If the shut-off gate valve on the outlet side is slightly opened, the valve should close or remain
closed. Then close the shut-off gate valve again.
If the valve does not close, the commissioning procedure must be repeated from the previous chapter.
Particular care must then be taken to ensure that the upper valve chamber and control lines are properly
vented.
4. Setting-up
Procedure:
•Slowly and gradually open the shutoff gate valve on the outlet side.
•After opening the shut-off gate valve on the outlet side, completely open the shut-off gate valve on
the inlet side. The valve must remain closed.
•The solenoid valve (5)- is to have power applied to it (the main valve opens) on the Hawido 1703
or- is to have power removed from it on the Hawido 1704 (the main valve opens).
5. Setting the reaction speed
If the HAWIDO does not operate quietly, or if pressure shocks occur in the supply network, this can be
corrected by the corresponding adjustment of the one-way flow restrictor (4).
Procedure:
Loosen the locknut. Screw in the set screw clockwise with a screwdriver until the valve operates quietly.
Then retighten the locknut.
CautionThe setting screw must always remain at least 2 -3 turns open, otherwise the valve will not re-open
quickly enough after the closing sequence.
A special setting is necessary for very high inlet pressures.
6. Checking for leakage
HAWIDO valves are tested at the factory for both leakage and function before delivery. When checking for
leakage under operational conditions, particular attention must therefore be given to the seals of the flange
connections, the control line and the central plug screw on the valve cover. Where necessary, ensure the
seal by retightening the connections.
7. Emergency manual operation 1703
If the valve has to be opened manually during a power failure, proceed as described below:
•Slowly close the ball valve (2)
•Slightly loosen the plug (or corresponding accessories such as: opening limiter, valve position
indicator etc.) on the valve cover ➔the valve cover chamber drains itself and the valve opens.
•Put back into operation as described in the Commissioning chapter
Notes:

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C. Fault finding
Symptoms
Possible cause
Action
Valve does not open
One-way flow restrictor blocked
Replace or unscrew the set
screw several times until the
valve functions properly
One-way flow restrictor closed
too far
Screw the set screw in and out
until the valve functions properly
Solenoid valve does not work
Check the function (electrical
work may only be carried out by
specialist personnel)
Valve does not close
One-way flow restrictor blocked
Replace, or screw the set screw
fully in and out several times
and then re-set
Filter in the control line blocked
Clean the filter
Air in the control line / upper
valve chamber
Vent
Foreign matter in the main valve
Carry out service and remove
any foreign matter
Diaphragm defective
Carry out a service.
Replace the diaphragm
Valve spindle jammed by
encrustation
Carry out service and remove
any encrustation
Solenoid valve does not work
Check the function (electrical
work may only be carried out by
specialist personnel)
Loud noise
Unfavourable operating
conditions
Slightly open or close the one-
way flow restrictor; Inform Field
Service
Wrong valve size
Have the correct valve size
calculated (contact Hawle)
Erratic operation
One-way flow restrictor
incorrectly set
Re-set as described in the
Setting the Reaction Speed
chapter
EWS coating damaged
Transportation damage,
installation damage
Repair with Hawle two-
component repair set for
coatings

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D. Putting out of service and maintenance
1. Putting out of service
The operating valve must first be shut off hydraulically by proceeding as follows:
Attention: Electrical work may only be carried out by qualified specialist personnel!
•Slowly close the gate valves before and after the valve
In order to be able to carry out maintenance work on the valve, the solenoid valve must be disconnected
from the power. The electrical supply must be disconnected.
The valve has now been taken out of operation, and a service can be carried out.
2. Maintenance and service
2.1 General information
Through our many years of experience with diaphragm valves that are controlled by the flow medium, we
know that our HAWIDOs normally function trouble-free for many years. Regular maintenance is a
precondition for this, however.
Under normal operating conditions, the following should be carried out:
•The valve should be checked for correct operation once a year (functional check)
•The dirt trap upstream of the valve and the filter in the control line should be cleaned once a year
•The inner working components should be checked and worn parts be replaced every four to five
years (maintenance).
Under unusual operating conditions (e.g. with water that contains quantities of suspended matter, very high
pressure reduction, small flow rates etc.), the functional checks and the service work should be carried out
more frequently.
Maintenance sign:
xx stands for the respective year.
2.2 Annual functional checks
Cleaning the dirt trap in the main line
•Unscrew the lid
•Clean the filter with a brush or cloth etc., or replace it
•Install the filter and screw the lid back on
Cleaning the filter in the control line
•Unscrew the lid of the filter
•Clean the filter with a brush or cloth etc., or replace it
•Re-install the filter and screw the filter lid back on.