JAUDT vario-slide valves serve the purpose of shutting off and metering liquid media and
free-flowing powdery to fine-grained bulk materials. JAUDT vario-slide valves are robust, tight-closing and
require little maintenance.
1.1 Validity of these operating instructions
These operating instructions are applicable to JAUDT vario-slide valves with nominal diameter 100, 150,
200, 250, 300, 350, 400, 500 and 600 mm with following operating equipment:
Manual operation with handle, hand crank, hand wheel, ratchet or chain
Electric motor drive
Electropneumatic drive
1.2 Identification
A type plate is affixed to each JAUDT vario-slide valve and identifies the vario-slide valve.
The paint and the accessories are not defined in the type number.
Please always indicate the type and order number when ordering spare parts or asking ques-
tions.
1.3 Reference documentation
The order confirmation is a constituent part of this instruction manual and lists the following information:
Model, identical with the model on the nameplate
Designated application; the design of the slide valve will be customised to this application
Technical data relating to slide valve and, where applicable, technical data relating to drive
The following additional documents are appended to every instruction manual:
Dimension sheet
Manual incl. lubrication chart for motor (if supplied with motor)
Data sheet for limit switch or solenoid valve (if supplied with limit switch or solenoid valve)
ATEX insert if required to conform to RL94/9/EC or used in areas at risk of explosion
These enclosures and appendices form a constituent part of this instruction manual!
This sign draws your attention to a danger to people because of electrical connections.
Be careful! Danger of injury!
This sign draws your attention to a danger that represents a threat to people.
Be careful! Damage to material!
This sign draws attention to an act that might cause damage to the JAUDT slide valve.
•
This dot prompts you to take action. Extreme care must be taken to carry out the
necessary steps in the right order.
1.4 Technical prerequisites for operation of power-operated
slide valves
The valve must be securely enclosed in order to protect against injury. If this enclosure was not ordered or
the operator converts the valve, the regulations of the Machine Directive must be observed. JAUDT supplies enclosures which can be adapted to the different requirements.
Supply voltages:
Refer to voltage specifications in the reference documentation (Section 1.3).
Compressed air:
Electropneumatic drive: 0.5...1.0 MPa (5...10 bar absolute), filtered, free of water and oiled.
2 Notes on safety
Take particular care to ensure that local accident prevention regulations are observed.
Before starting to do any work on the JAUDT vario slide valve, take the necessary steps to make sure that
the drive unit is switched off/disconnected and that the appropriate control staff have been informed. If aggressive or hot substances are being stopped by the JAUDT vario slide valve, suitable safety precautions
must be made before work on the slide valve begins. They include protective clothing, breathing apparatus, positioning of collection containers.
If there is a safety officer and/or an environmental protection officer, he/she/they must be informed before
work begins.
JAUDT vario slide valves are based on a state-of-the-art design. Nevertheless, personal injury and damage to property can occur due to carelessness. We provide appropriate warnings in the form of corresponding information. This information is emphasised by special symbols.
- JAUDT vario-slide valves without an O-ring seal or Airmatic seal
are suitable only for free-flowing materials with a particle size of 0.05 ... 6 mm,
e.g. ash, filter dust, plaster, lime, flour, dry salt, sand, cement, sugar
- JAUDT vario-slide valves with an O-ring seal in the intake collar
are dust-tight and are suitable for free-flowing materials with a particle size of less than 0.05 mm and for
non-aggressive liquids (after consultation with JAUDT), e.g. filter dust, flue dust, mash, water
- JAUDT vario-slide valves with an O-ring seal in the gland (goggle seal)
are dust-tight to the outside; gas-tight to the outside in accordance with DIN 3230 Part 3 leakage rate 3
(blowing) to 0.5 bar and approx. 1000 strokes – thereafter adjustment or seal change is required.
- JAUDT vario-slide valves with an Airmatic seal
This is a pneumatically charged hollow-profile seal that permits greater tightness in the opening of the
JAUDT valve.
The pressure-tightness given above depends on the nominal diameter. These figures can be taken from
the following table (max. tightness):
In principle, a 2 bar higher seal pressure is required or tightness in the opening = operating pressure – 2
bar!
In the event of an application deviating from the above contact JAUDT GmbH for expert advice.
2.1.2 Temperature limits
The operating temperature must not exceed the value defined in the order. The table below shows a selection of the maximum operating temperatures depending on the component material:
JAUDT vario-slide valves must not be used to meter or shut off aggressive liquids (acids,
alkaline solutions) and liquid foods.
The conditions of use must not exceed the load limits of the materials used (e.g. corrosion, temperature).
JAUDT vario-slide valves which are intended for manual operation must not be connected to an external
drive.
For instance, the chain drive must not be connected to a motor drive.
2.2 Noise emission
The noise emission is 85 dB (A) in the productless operation. With higher noise emission in the plant group
and in the regular operation suitable measures are to be met by the plant engineer.
3 Transport and storage
3.1 Transport
To ensure the O-ring seal (optional) is not damaged, JAUDT vario-slide valves should only be trans-
ported and stored in the "Slide valve closed“ -position.
Transport the slide valve lying on its discharge flange.
Secure the slide valve properly to prevent it suffering shocks and blows and prevent damaging the
paintwork by placing suitable elements between the securing tape and the slide valve.
Secure the slide valve to prevent it slipping and protect the particularly exposed parts such as the
drive unit and accessories.
3.2 General storing instructions
Store the slide valve lying on its discharge flange.
Cables, hose lines, the drive unit and mounted accessories must be protected properly from damage.
Recommended storage temperature -10°C…+40°C.
Max. relative humidity 65%.
Store the device in a dry, dust-free place and pay attention to the storage temperatures, especially in
extreme climes like the tropes, the desert, or very cold regions.
Do not store device in aggressive atmosphere or together with aggressive media like acid, oil, dissol-
ver or salt.
Precautions for a long-term storage (more than three months):
Protect unfinished device parts with an anti-corrosion coating, e.g. with a film of oil.
Seal the device against the ingress of dust and moisture.
Operate the device once a year.
Do not store the device more than four years.
Storing packing, plastic parts, glands and sealings
(conditions according to DIN 7716)
Recommended storage temperature -10°C …+40°C.
Max. relative humidity 65 %.
Store the slide valve in a dry, dust-free place.
Do not store the glands in an oily or aggressive atmosphere.
Protect against sunlight.
Store glands and sealings flat lying and in the original packing.
4 Installation, start-up, operation
4.1 Installation
This installation work should only be carried out by a specially trained installation technician.
Work on the electrical system must only be carried out by a qualified electrician.
JAUDT vario-slide valves are supplied assembled ready for operation.
Before installation, check that the vario-slide valve is adjusted correctly. Adjust the slide valve if neces-
sary:
Check that the thrust piece is at the correct distance from the housing (avoid canting).
Check that the slide valve closes tightly. Readjust the eccentric screws if necessary.
Inductive limit switch (optional): Check the "Slide valve OPEN“ - "Slide valve CLOSED“ settings.
Check that the O-ring seal (optional) is suitable for the particular application (see Section 2.1.2 e.g. ma-
terial, operating temperature).
4.1.1 Determine installation position
Installation position horizontal inclined by up to max. 30°.
Do not install slide valve upside down, refer to cover sheet for installation position.
Clean flange surfaces.
Align the JAUDT vario-slide valves such that the opening forms a funnel for the flow-
ing bulk material.
Fit a seal at the pipe flanges (not supplied).
Caution Material Damage!
Install the JAUDT vario-slide valve free of tension - otherwise risk of material damage.
Carefully observe the following installation instructions.
Align the JAUDT vario-slide valve with respect to the piping system.
Check parallel alignment of the counterflanges.
Tighten the connection elements crosswise.
Max. tightening torques:
4.2 Start-up
Start-up work should only be carried out by specially trained personnel.
Work on the electrical system must only be carried out by a qualified electrician.
Caution Danger of Injury!
Make sure that the system is switched off and secured
to prevent it being switched on again. Inform the control room.
Check the JAUDT vario-slide valve when installed
for low-noise and smooth operation of the slide valve
for leaks
that the securing elements are firmly tightened
Additional checks for power-operated versions:
Check the electropneumatic system with regard to function and leaks.
Check that the electric motor is connected correctly.
Inductive limit switch: Check the switch positions "Slide valve OPEN“ and "Slide valve CLOSED“.
4.3 Operation
Observe the notes on safety.
Operation of JAUDT vario-slide valves is simple in all drive variants.
Caution Danger of Injury! – Manually operated vario-slide valves:
Always wear protective gloves when metering hot materials
– Danger of burns.
Depending on the type, open and close the JAUDT vario-slide valves with the handle, hand crank, hand
wheel, ratchet, sprocket, electric motor or electropneumatic drive.
Under constant working cycles or critical operating conditions
every 6 months
For other applications as stop slide valve
Comply with the inspection and servicing intervals for vendor parts – see "Reference Documentation“ (Section 1.3).
Be careful! Danger of injury!
Make sure that the equipment has been switched off before work starts and that
precautions have been taken so that it cannot start up again unintentionally. Inform
the appropriate control staff.
Be careful! Danger of injury! – When substances that are hot or irritate the skin are
being metered.
Protect yourself by wearing protective clothing, safety goggles, breathing apparatus.
Inform the safety and environmental protection officer(s).
Keep a suitable collection container close at hand.
Be careful! Danger of death!
Made sure that the drive unit has been switched off or disconnected. Make sure that
the equipment has been switched off before work starts and that precautions have
been taken so that it cannot start up again unintentionally. Inform the appropriate
control staff.
5 Maintenance
Maintenance includes servicing, inspection and repairs.
Maintenance should only be carried out by JAUDT GmbH.
Servicing and inspection should only be carried out by specially trained qualified personnel.
Work on the electrical system must only be carried out by qualified electricians.
Special tools for maintenance:
You do not need any special tool beside the current tools like spanner, Allen key, screwdriver,
feeler gauge and calliper rule to maintain your JAUDT-device.
But we suggest to use a capable lifting system for heavy device parts and, if necessary, protecting
clothing.
To identify needed special tools for mounted accessories from other manufacturer please consider
their operating manual.
6 Inspection and servicing
Inspection must also be carried out as part of the servicing work.
Refer to "Spare parts“ (Section 8) for illustrated assembly instructions.
Check that the screws and securing elements are firmly in place. Remove any dirt
and rust.
Lubricate the spindles with suitable grease.
Carry out a visual inspection. If necessary, replace any damaged components.
Check that the vario-slide valve does not leak. Tighten the packing goggle if necessary.
If necessary, replace worn seals and adjust the eccentric screws.
Check the vario-slide valve for smooth movement and noise emission.
If necessary, disassemble and clean the JAUDT vario-slide valve.
Always replace the self-locking screws.
Disassemble and clean the vario-slide valve. Always replace the self-locking screws.
Replace the seals and adjust the eccentric screws such that there is a gap of 0.5 mm between the
slide plate and the housing collar. In the case of slide valves with the seal in the opening (O-ring) the
seal should abut the slide plate and completely surround the opening .
Adjust and replace the stuffing box gland (see Section 6.1).
6.1 How to adjust and replace the stuffing box gland
6.1.1 To adjust the stuffing box gland
If leaks occur on the stuffing box gland (material falling out) it must be adjusted. This is done using the nuts
on the thrust piece. Tighten all the nuts (up to a nominal size of Ø250 there are two, over a nominal size of
Ø300 there are five) evenly in sequence by half a turn at a time. The tightening torque should not exceed
approx. 20 Nm. The gland has been tightened correctly if the slide can be moved easily and no material is
drawn out with it.
6.1.2 To replace the stuffing box gland
If adjusting the gland does not produce the required result after it has been in use for some time, it should
be replaced. To do this, proceed as follows (see illustration in Section 8):
If necessary, remove the safety cover (S)
Undo the connection screws between the slide plate (5) and the spindle nut (7)
If necessary, remove the angle piece (switch lug) on the slide plate
Undo the M16 nuts on the rods (6)
Remove the drive
Undo the nuts on the thrust piece (4) and remove the thrust piece
Pull out the gland using a sharp object (marking scribe) and replace it with a new gland.
Please note: Offset the butt joints of the various gland cords Assemble the unit again following the above instructions in reverse.
The Airmatik seal (21) is positively located in a profile groove below the intake collar of
the housing (1). Pressure is applied by means of the pneumatic connection on the housing. It must not be
applied before the slide plate (5) is fully closed. This is achieved by means of the mechanical valve (23)
being actuated into the "Closed" position.
6.2.2 Seal changes:
Use a screwdriver to raise the Airmatik seal (21) at a particular place and then remove it from the profile
groove along with the seal join (22). Examine the profile groove and remove any dirt and furrows.
Lightly grease the O-ring of the valve connection of the new seal and carefully insert the new Airmatik seal
completely into the place of the valve connection. Introduce the Airmatik seal into the groove evenly on
both sides, starting from the valve connection.
The profile of the seal must engage completely in the profile groove. If this does not happen completely,
there is a risk that the seal will be forced out of the groove under pressure and will be damaged. Suitable
tools can be ordered from Jaudt.
Do not use any tools with sharp edges, e.g. small screwdrivers, when installing the new Air-
Attention: Damage to materials!
matik seal!
Make sure the valve connection is properly located!
Work on the electrical system must only be carried out by qualified electricians.
Adhere to the "Reference Documentation“ (Section 1.3) as well.
Check the electric motor drive. If noise emission develops, replace the ball bearing between the gear
unit and spindle.
Ensure that the electrical connection is not oxidised, damaged or leaking.
Check the limit switches with regard to their function and technical condition.
Replace the lubricant sensor.
Ensure the accident prevention guard is firmly fitted.
Adjust and replace the stuffing box gland (see Section 6.1).
6.4 Electropneumatic drive
Work on the electrical system must only be carried out by qualified electricians.
Check the pneumatic supply (pressure) and drain off if necessary.
Ensure that all solenoid valves are operating correctly.
Check the pneumatic system for leaks.
Check the limit switches (optional) with regard to their function and technical condition.
Ensure that the electrical connection is not oxidised, damaged or leaking.
Ensure that the accident prevention guard is firmly fitted.
See Section 6.1 for details of how to adjust and replace the stuffing box gland
The cylinder pipe of the electropneumatic drive is dependently of the nominal size of the vario slide valve
equipped with different diameters ØD.
Overview of the repair kit of the electrpneumatic drive make JAUDT:
Glands worn
Glands not sealed
Slider plates worn or with product
accumulation
Non-specified use
Replace glands
Tighten glands
Clean or replace slider plate
Check conditions of use (for
example pressure and
temperature)
Leak in passage through the
slider plate
Product accumulation on the
slider plate or casing
Seal in passage (if there is one)
worn
Non-specified use
Clean
Replace seal
Check conditions of use (for
example pressure and
temperature)
Slider plate jerks or does not
move
Product accumulation on slider
plate including guides or in casing
Glands worn or excessively
stressed
Drive or power supply and
controller defective
Clean
Replace or adjust glands
Check and repair
Pulse generator does not
generate any signals
Pulse generator defective
Actuation element loose or pulse
generator maladjusted
Limit settings are not reached
Replace
Check and repair
Remove accumulations or
foreign bodies; Check drive unit
and power supply
9 Ordering spare parts
Send your spare parts order by mail to verkauf@jaudt.de or by fax to ++ 49 (0)821 7960567.
If you have a JAUDT customer number you can also order spare parts at www.jaudt.de.
Please give us the following information when ordering spare parts:
Name and item from the spare parts list (appendix)
Order no. and type of the JAUDT slide valve according to the type plate
Example:
Suppose you require a new slide plate. We need the following details:
Slide plate, item 5, No. 120610.0107
Order no. according to type plate, e.g. AB03-0211
Type according to type plate, e.g. AB03-0211.10 or 600808.4002
Cleaning agents containing acid and alkaline solutions must not be used.
Foodstuffs:
If food is to be metered, clean the JAUDT vario-slide valve under running drinking water and with a soft
brush.
If heavily soiled, use commercially available detergents. Make sure that these detergents are not toxic and
do not form toxic compounds. You must also make sure that they contain no acids and alkaline solutions.
Rinse with plenty of drinking water.
12 Disposal
Used oil and lubricants are special waste. Please dispose of them in an environmentally acceptable manner.
Documentation officer Wolfgang Morell, JAUDT Dosiertechnik GmbH
Product denomination / Device Type Vario-slide valve / 6110…
The above partly completed machinery is governed by the requirements of Directive
2006/42/EC Annex I, its general principles and its Part 1 and where appropriate Point 2.1. If
used in areas at risk of explosion Directive 94/9/EC (ATEX) also applies.
The fundamental requirements 1.3.3 and 1.3.4 can be ensured. The above requirements can
only be ensured through proper installation.
In addition, the above product conforms in the supplied version to the provisions of Directive
2006/95/EC “Low Voltage Directive” and 2004/108/EC “Electromagnetic Compatibility”.
For the purposes of assessment of conformity the manufacturer produced the special technical documentation pursuant to Directive 2006/42/EC Annex VII Part B. This documentation will
be sent to the authorities of the individual member states in file form on justified request.
The above partly completed machinery is intended solely for incorporation in another machine.
Commissioning is prohibited until it has been ascertained that the machine / system into which
the partly completed machinery is to be incorporated meets the requirements of all the above
directives.
JAUDT Dosiertechnik GmbH
Raiffeisenstraße 3-5 Robert Roßkopf
D-86167 Augsburg Managing Director