VAT 670 Series Assembly instructions

Installation, Operating &
Maintenance Instructions
943070EA Edition 2018-06-19
Symmetrical flow control & isolation valve
Series 670
DN 250 mm (I. D. 14")
This manual is valid for the following product ordering number
67048-PH52-ACF1

Series
670
2/39 Edition 2018-06-19 943070EA
Imprint
Manufacturer
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Website:
Phone:
Fax:
Email:
www.vatvalve.com
[phone]
[phone]
[email protected]
Publisher
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Editor
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Print
VAT Vakuumventile AG, CH
-
9469 Haag, Switzerland
Copyright
©
VAT Vakuumventile AG
2018
No part of these Instructions may be reproduced in any way (photocopies,
microfilms or any other reproduction processes) nor may it be manipulated with
electronic systems, duplicated or distributed without written permission from VAT.
Offenders are liable to pay damages.
The original VAT firmware and updated state of the art versions of the VAT
firmware are intended for use with VAT products. The VAT firmware contains a
limited, time unlimited user license. The VAT firmware may not be used for
purposes other than those intended nor is it permitted to make copies of the VAT
firmware. In particular, it is strictly forbidden to give copies of the VAT firmware to
other people.
The use of trade names, brand names, trademarks, etc. in these Instructions
does not entitle third parties to consider these names to be unprotected and to
use them freely. This is in accordance with the meaning of the laws and acts
covering brand names and trademarks.

Series 670
943070EA Edition 2018-06-19 3/
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Contents
1 Description of product........................................................................4
1.1 Identification of product ...................................................................................................4
1.2 Use of product.................................................................................................................4
1.3 Used abbreviations..........................................................................................................4
1.4 Related documents..........................................................................................................4
1.5 Important information.......................................................................................................4
1.6 Technical data.................................................................................................................5
1.6.1 Valve unit ............................................................................................................5
2 Safety ...................................................................................................6
2.1 Compulsory reading material...........................................................................................6
2.2 Danger levels ..................................................................................................................6
2.3 Personnel qualifications...................................................................................................7
2.4 Safety labels....................................................................................................................7
3 Design and Function...........................................................................8
3.1 Design.............................................................................................................................8
3.2 Function...........................................................................................................................8
4 Installation...........................................................................................9
4.1 Unpacking .......................................................................................................................9
4.2 Installation into the system............................................................................................11
4.2.1 Installation space condition...............................................................................12
4.2.2 Installation overview..........................................................................................13
4.2.3 Installation procedure........................................................................................14
4.3 Tightening torque ..........................................................................................................15
4.4 Admissible forces..........................................................................................................15
5 Operation...........................................................................................16
6 Trouble shooting...............................................................................17
7 Maintenance ......................................................................................18
7.1 Maintenance intervals....................................................................................................19
7.2 Maintenance procedures...............................................................................................19
7.2.1 Removing the plate and plate seal replacement ...............................................20
7.2.2 Replace the actuator.........................................................................................25
8 Repairs...............................................................................................30
9 Dismounting and Storage.................................................................31
9.1 Dismounting ..................................................................................................................31
9.2 Storage..........................................................................................................................32
10 Packaging and Transport.................................................................33
10.1 Packaging......................................................................................................................33
10.2 Transport.......................................................................................................................34
11 Disposal.............................................................................................35
12 Spare parts ........................................................................................36
13 Appendix............................................................................................38

DESCRIPTION OF PRODUCT Series
670
4/39 Edition 2018-06-19 943070EA
1 Description of product
1.1 Identification of product
The fabrication number and order fabrication are fixed on the product directly or by means of an
identification plate.
Fabrication No.:
000 . .- . . . .- . . . ./ . . . .
A - . . . . . .


Fabrication number
Order number
1.2 Use of product
Use product for clean and dry vacuum applications only. Other applications are only allowed with the
written permission of VAT.
1.3 Used abbreviations
Abbreviation Description
SFV Symmetrical flow valve
CPA Control performance analyser
1.4 Related documents
• Product data sheet
• Dimensional drawing
• VAT heating device manual
• External controller manual (IC2)
1.5 Important information
This symbol points to a very important statement that requires particular attention.
Example
:
VAT disclaims any liability for damages resulting from inappropriate packaging.

Series 670 DESCRIPTION OF PRODUCT
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39
1.6 Technical data
1.6.1 Valve unit
Describtion
Symmetrical flow functional principle (given)
Pressure range at 20 °C 1 × 10E-9 mbar to 1.2 bar (abs)
Leak rate to outside at 20 °C 1 × 10E-8 mbar l/s
Leak rate valve seat at 20 °C 1 × 10E-4 mbar l/s
Max. differential pressure on plate at isolation 1200 mbar (from chamber side)
30 mbar (from pump side)
Max. differential pressure on plate during operation 10 mbar
Cycles (under vacuum) until first service
- Isolation cycles (open - closed - open)
- Throttling cycles (open - max. throttle - open)
200’000 (unheated and under clean conditions)
2’000’000 (unheated and under clean conditions)
Admissible operating temperature 10°C to +120°C
Mounting position Horizontal (actuators downwards)
Process side
materials flange Aluminum EN AW-6061 T6 hard anodized
plate Aluminum EN AW-6061 T6 hard anodized
actuator shafts Stainless steel 316L (1.4435 or 1.4404)
bellows Stainless steel 633 (AM350)
bolts Stainless steel A2 (304)
wiper ring PEEK (polyether ether ketone)
Seals plate Viton ®
arm (plate) Viton ®
shaft Viton ®
actuator shaft seals Viton ®
Max. controllable conductance (N
2
molecular flow) 22’000 l/s (max. 100 mm stroke)
Min. controllable conductance (N
2
molecular flow) 0.25 l/s
Actuating time full open to closed (throttling) typ. 1.0 s per 100mm
closed (throttling) to full open typ. 1.0 s per 100mm
full open to closed (isolated) typ. 1.0 s
closed (isolated) to full open typ. 1.0 s
Stroke mechanical maximum 130 mm
Weight Approx. 38 kg
Dimensions Refer to dimensional drawing (934152)

SAFETY Series
670
6/39 Edition 2018-06-19 943070EA
2 Safety
2.1 Compulsory reading material
Read this chapter prior to performing any work with or on the product. It contains important information
that is significant for your own personal safety. This chapter must have been read and understood by
all persons who perform any kind of work with or on the product during any stage of its serviceable
life.
NOTICE
Lack of knowledge
Failing to read this manual may result in property damage.
Firstly, read manual.
These Installation, Operating & Maintenance Instructions are an integral part of a
comprehensive documentation belonging to a complete technical system. They must
be stored together with the other documentation and accessible for anybody who is
authorized to work with the system at any time.
2.2 Danger levels
DANGER
High risk
Indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING
Medium risk
Indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION
Low risk
Indicates a hazardous situation which, if not avoided, may result in minor or moderate
injury.
NOTICE
Command
Indicates a hazardous situation which, if not avoided, may result in property damage.

Series 670 SAFETY
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2.3 Personnel qualifications
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
2.4 Safety labels
Label Part No. Location on valve
T-9001-156 On protective foil covering the
valve opening

DESIGN AND FUNCTION Series
670
8/39 Edition 2018-06-19 943070EA
3 Design and Function
3.1 Design
Sample picture
1 Flange 5 Intermediate piece
2 Plate 6 Actuator shaft with bellows
3 Plate seal 7 Actuator (stepper motor)
4 Plate screw Valve seat side
3.2 Function
The valve plate (2) acts as a throttling element and varies the conductance of the valve opening. The
controller calculates the required plate position to achieve the set point pressure. Actuation is
performed by two synchronous stepper motors (7). Encoders monitor the position. This principle
ensures fast and accurate process pressure control.
5
2
3
4
1
7
6

Series 670 INSTALLATION
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4 Installation
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
4.1 Unpacking
WARNING
Heavy weight
Physical overstraining.
Use a crane to lift valves DN 200 (8”) and larger.
NOTICE
Physical overstraining at actuators
Inappropriate handling with the valve may cause in damage of actuator.
Do not place the valve on the actuators.
• Make sure that the supplied products are in accordance with your order.
• Inspect the quality of the supplied products visually. If it does not meet your
requirements, please contact VAT immediately.
• Store the original packaging material. It may be useful if products must be returned
to VAT.

INSTALLATION Series
670
10/39 Edition 2018-06-19 943070EA
1. Open the transport case and remove inside packing material as far as necessary.
2. Use a crane and lifting attachments (4 × M10 thru) to lift the valve. See example figure below.
3. Lift the valve carefully and place it on a clean place.
Do not remove protective foils from valve opening

Series 670 INSTALLATION
943070EA Edition 2018-06-19 11/
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4.2 Installation into the system
CAUTION
Valve opening
Risk of injury.
Do not connect the controller to power before the valve is installed complete into the
system.
NOTICE
Wrong connection
Wrong connection may result in damage of controller or power supply.
Connect all cables exactly as shown in the following schematic.
NOTICE
Burned connector pins (spark)
Connector pins or electronic parts could damage, if plugged and unplugged under
power.
Do not plug or unplug connectors under power.
NOTICE
Contamination
Gate and other parts of the valve must be protected against contamination.
Always wear clean room gloves when handling the valve.
• Make sure that the sealing surfaces of the valve and the chamber are undamaged.
• Mount valve to a clean system only.

INSTALLATION Series
670
12/39 Edition 2018-06-19 943070EA
4.2.1 Installation space condition
Install the valve with actuators with space (a) for dismantling and air circulation as
shown in figure below.

Series 670 INSTALLATION
943070EA Edition 2018-06-19 13/
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4.2.2 Installation overview
Chamber
External Controller IC2 (3)
Pump side
Symmetrical flow valve [1]
Heating device [4]
Actuator cables [2]
Actuator cables [2]

INSTALLATION Series
670
14/39 Edition 2018-06-19 943070EA
4.2.3 Installation procedure
All numbers in brackets refer to chapter «Installation overview».
1. Remove protective covers from body flanges.
2. Install symmetrical flow valve [1] into the vacuum system. Refer to chapter «Installation
overview».
• Do not tighten the flange screws stronger than indicated under «Tightening
torque».
• Do not admit higher forces to the valve than indicated under «Admissible forces».
• Make sure that enough space is kept free to do preventive maintenance work. The
required space is indicated on the dimensional drawing
3. Install actuator cables [2] to actuators and then to the External Controller IC2 [3]. Refer to chapter
«Installation overview».
Take care to the connector position at actuators, refer to 3 dots at connector for
correct connection.
4. Install all electrical connections at External Controller. Refer to «External Controller manual
(IC2)».
5. Connect VAT heating device [4] according to manual of respective heating device.

Series 670 INSTALLATION
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4.3 Tightening torque
NOTICE
Physical overstraining at valve flange.
Physical overstraining may cause in damage of valve flange.
Do force (fasten) the screws more as specified by the screw manufacturer.
4.4 Admissible forces
Forces from evacuating the system, from the weight of other components, and from
baking can lead to deformation and malfunctioning of the valve. Stress has to be
relieved by suitable means, e.g. bellows sections.
Axial tensile or
compressive force
«F
A
» Bending mo ment «M»
N lb. Nm lbf.
4000 880 160 120
For a combination of both forces (F
A
and M) the values are invalid.
Verify that the depth of the mounting screws is min. 1x thread diameter.
Please contact VAT for more information.
M
FA

OPERATION Series
670
16/39 Edition 2018-06-19 943070EA
5 Operation
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
CAUTION
Valve opening
Risk of injury.
Do not operating before the valve is installed complete into system.
For «Operation» refer to «External Controller manual».

Series 670 TROUBLE SHOOTING
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6 Trouble shooting
For «Trouble shooting » refer to «External Controller manual».
If you need any further information, please contact one of our service centers. You can find the
addresses on our website: www.vatvalve.com.

MAINTENANCE Series
670
18/39 Edition 2018-06-19 943070EA
7 Maintenance
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
CAUTION
Hot surfaces
Heated valve may result in minor or moderate injury.
Do not touch valve and heating device during operation. Once heating is switched off
(valve and system) await until the valve is cooled down complete before doing any
work.
CAUTION
Valve opening
Risk of injury.
Human body parts must be kept out of the valve opening and away from moving parts.
NOTICE
Contamination
Gate and other parts of the valve could be contaminated.
Always wear cleanroom gloves when handling the valve.
NOTICE
Scratches on sealing surface
Scratches on sealing surface cause in malfunction (leak) of valve
Only qualified personnel are allowed to carry out the described work.

Series 670 MAINTENANCE
943070EA Edition 2018-06-19 19/
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7.1 Maintenance intervals
Under clean operating conditions, the valve does not require any maintenance during the specified
cycle life. Contamination from the process may influence the function and requires more frequent
maintenance.
Before carrying out any maintenance, please contact VAT. It has to be individually decided whether
the maintenance can be performed by the customer or has to be carried out by VAT
www.vatvalve.com. The fabrication number on the valve has always to be specified. Refer to chapter
«1.1 Identification of product» for fabrication number.
7.2 Maintenance procedures
• Open / close the service cover and valve cleaning. Refer to manual of customized process
chamber.
This task is described on customer side.
• Removing the plate and plate seal replacement. Refer to chapter «7.2.1 Removing the plate and
plate seal replacement».
• Replace the actuator shaft. Refer to chapter «7.2.2 Replace the actuator.

MAINTENANCE Series
670
20/39 Edition 2018-06-19 943070EA
7.2.1 Removing the plate and plate seal replacement
7.2.1.1 Required tools
• Allen wrench 5 mm
• O-ring removal tool
• CPA 4.0 (in EC2 integrated)
• Cleanroom wiper
• Isopropyl alcohol
• Clean room gloves
Electrical power is required.
Description Required tool
Use the CPA 4.0 which is
integrated in the IC2 controller.
1. Go to [LOCAL] mode.
CPA
2. Select position [20] = 20 % open. CPA
If PFO available on IC2
controller, proceed with step 3,
if not go to step 4.
3. Disable the PFO in menu: Valve >
Parameters > Power Fail Option >
Enable = [False], press save button
or [Enter] on keyboard.
CPA