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VARIVENT DN 25
GEA VARIVENT DN 25 User Manual
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2.
Unscrew the cleaning hose (30).
3.
Vent actuator at (22) or control the pilot valve using the manual override.
Fig.11:
S = manual override pilot valve
4.
Remove the clamp connection (43.1) between housing and lantern.
5.
Vent the actuator.
®
Done
10.5.2
Removing the control top
Maintenance
Disassembly
430BAL008386EN_3
42
07.02.2022
41
43
Table of Contents
Table of Contents
3
General Information
5
Information on the Document
5
Binding Character of These Operating Instructions
5
Notes on the Illustrations
5
Symbols and Highlighting
5
Manufacturer Address
6
Contact
6
EU Declaration of Conformity in Accordance with the EC Machinery Directive 2006/42/EC
7
Translated Copy of the EU - Declaration of Conformity in Accordance with the Pressure Equipment Directive 2006/42/EU
8
Safety
9
Intended Use
9
Requirements for Operation
9
Pressure Equipment Directive
9
ATEX Directive
9
Improper Operating Conditions
10
Operator's Duty of Care
10
Subsequent Changes
11
General Safety Instructions and Dangers
11
Principles for Safe Operation
11
Environmental Protection
12
Electrical Equipment
12
Supplementary Regulations
12
Qualification of Personnel
12
Safety Equipment
14
Signage
14
Residual Dangers
15
Hazard Areas
16
Description
18
Design
18
Functional Description
20
Leakage-Proof Shut-Off
20
Cleaning Function
20
Actuator Function
20
Transport and Storage
22
Storage Conditions
22
Transport
22
Scope of Supply
23
Technical Data
24
Type Plate
24
Cleaning Connection
25
Resistance and Permitted Operating Temperature of the Sealing Materials
26
Pipe Ends - General Table of Measurements
27
Tool
28
Lubricants
29
Weights
29
Assembly and Installation
30
Safety Instructions
30
Notes on Installation
30
Control Head
30
Valve with Detachable Pipe Connection Elements
30
Valve with Welded Ends
31
Pneumatic Connections
32
Air Requirement
32
Establishing Hose Connections
32
Electrical Connection with T.VIS Control Top
33
Start-Up
34
Safety Instructions
34
Notes on Commissioning
34
Operation and Control
35
Safety Instructions
35
Cleaning
36
Cleaning Process Examples
36
Cleaning Effect
36
Cleaning the Leakage Cavity
37
Passivation
37
Maintenance
38
Safety Instructions
38
Inspections
39
Product Contact Seals
39
Pneumatic Connections
39
Electrical Connections
39
Signs on the Valve
40
Maintenance Intervals
40
Prior to Disassembly
40
Disassembly
41
Start Disassembly
41
Removing the Control Top
42
Disconnecting the Valve from the Housing
44
Disassembling the Valve into Individual Parts
44
Disassembly Balancer Plug
45
Disassembly of the Housing Combination
46
Installation
46
Torques for the Clamps and Clamp Connections
46
Assembling the Valve from Individual Parts
46
Fitting the Control Top
48
Assembly of the Housing Combination
49
Assembly Balancer Plug
50
Installing the Valve Insert in the Housing
52
Checking the Function
53
Maintenance
54
Cleaning the Valve
54
Replacing Seals
55
10.7.2.1 Replacing V-Ring Double-Disk
55
10.7.2.2 Replacing V-Ring RA Valve Disk
57
10.7.2.3 Replace more Seals
58
Lubricating Seals and Threads
59
Alarms
61
Malfunctions and Remedies
61
Decommissioning
62
Safety Instructions
62
Disposal
62
General Notes
62
Valve Actuator Disposal
62
Spare Parts List - Double Seat Valve R
63
Dimension Sheet - VARIVENT® Double Seat Valve R
75
Appendix
77
Lists
77
Abbreviations and Terms
77
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GEA VARIVENT DN 25 Specifications
General
Brand
GEA
Model
VARIVENT DN 25
Category
Control Unit
Language
English
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