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3251
Samson 3251 User Manual
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T
ranslation of original instructions
EB 8052 EN
T
ype3251 and T
ype3251-AM V
alve · ANSI version
In combination with an actuator
,
e.g. a T
ype3271 or T
ype3277 Pneumatic Actuator
Edition March 2024
T
ype3251/3251-AM V
alve with T
ype3271 Actuator
1)
UKC
A conformity, T
ype3251 only (not T
ype3251-AM)
1)
2
Table of Contents
Default Chapter
3
Table of Contents
3
1 Safety Instructions and Measures
7
Notes on Possible Severe Personal Injury
12
Notes on Possible Personal Injury
12
Notes on Possible Property Damage
14
Notes on the Use of an RFID Tag
16
Warnings on the Device
16
2 Markings on the Device
17
Valve Nameplate
17
Actuator Nameplate
18
Material Identification Number
18
Label When an Adjustable Packing Is Installed
19
Optional RFID Tag
19
3 Design and Principle of Operation
21
Versions
23
Additional Fittings
23
Valve Accessories
24
Technical Data
24
4 Shipment and On-Site Transport
31
Accepting the Delivered Goods
31
Removing the Packaging from the Valve
31
Transporting and Lifting the Valve
31
Transporting the Valve
32
Lifting the Valve
33
Storing the Valve
35
5 Installation
37
Installation Conditions
37
Preparation for Installation
39
Mounting the Device
40
Mounting the External Anti-Rotation Fixture
40
Mounting the Actuator Onto the Valve
50
Installing the Valve into the Pipeline
52
Testing the Installed Valve
53
Leakage
54
Travel Motion
54
Fail-Safe Position
55
Pressure Test
55
6 Start-Up
57
7 Operation
59
Normal Operation
60
Manual Operation
60
8 Malfunctions
61
Troubleshooting
61
Emergency Action
62
9 Servicing
63
Periodic Testing
65
Service Work Preparations
70
Installing the Valve after Service Work
70
Service Work
71
Replacing the Gasket
71
Replacing the Packing
72
Replacing the Seat and Plug
76
Ordering Spare Parts and Operating Supplies
78
10 Decommissioning
79
11 Removal
81
Removing the Valve from the Pipeline
82
Removing the Actuator from the Valve
82
12 Repairs
83
Returning Devices to SAMSON
83
13 Disposal
85
14 Certificates
87
Certificates for Type 3251
87
Certificates for Type 3251-AM
99
15 Appendix
101
Tightening Torques, Lubricants and Tools
101
Spare Parts
101
After-Sales Service
103
Information on the UK Sales Region
103
5
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Samson 3251 Specifications
General
Brand
Samson
Model
3251
Category
Control Unit
Language
English
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