SH 8015 EN
Translation of original instructions

Type 3241 Globe Valve

Edition July 2023

Definition of signal words! DANGER
Hazardous situations which, if not avoided,
will result in death or serious injury! WARNING
Hazardous situations which, if not avoided,
could result in death or serious injury

2! NOTICE
Property damage message or malfunction
Note
Additional information
Tip
Recommended action

SH 8015 ENPurpose of this manual
The Safety Manual SH 8015 contains information relevant to the use of the Type 3241 Globe
Valve in safety-instrumented systems according to IEC 61508 and IEC 61511. The safety
manual is intended for planners, constructors and operators of safety-instrumented systems.

! NOTICE
Risk of malfunction due to incorrect installation or start-up of the device.
Î Refer to the mounting and operating instructions on how to install and start-up the device.
Î Observe the warnings and safety instructions written in the mounting and operating instructions.

Revisions
Old version

New version

RevisionsNovember 2022

July 2023

Technical data changed (see section 2)− Temperature range of body without insulating section− Temperature range of balanced valve plug with graphite ring
Additional information on the mounting position (see Chapter 4)
Additional information on proof test coverage (PTC) (see Chapter 6.3)
New safety-related data (see Chapter 8)(replacing certification no. 968/V 1046.00/18 of 22 March2018)

Further documentation
The documents listed below contain descriptions of the start-up, functioning and operation of
the valve. You can download these documents from the SAMSON website.

Type 3241 Globe Valveu T 8015:
u T 8012:
u T 8012-2:
u T 8015-1:
u T 8012-1:

SH 8015 EN

Data sheet (DIN)
Data sheet (ANSI)
Data sheet (JIS)
Data sheet for PSA version (DIN)
Data sheet for PSA version (ANSI)3

﻿u T 8015-10:
u T 8020-2:
u EB 8015:
u EB 8012:
u EB 8020:

Data sheet for customer standard SAM001 (DIN)
Data sheet for Type 3241-Gas (valve class D)
Mounting and operating instructions (DIN)
Mounting and operating instructions (ANSI, JIS)
Mounting and operating instructions for Type 3241-Gas

Note
In addition to the valve documentation, observe the technical documentation for the actuatorand valve accessories.

1
1.1
1.2
1.3
1.4

Scope............................................................................................................5
General.........................................................................................................5
Use in safety-instrumented systems...................................................................5
Versions and ordering data.............................................................................5
Mounting.......................................................................................................52

Technical data................................................................................................7

3
3.1
3.2
3.3

Safety-related functions..................................................................................8
Safety-related fail-safe action...........................................................................8
Fail-safe action...............................................................................................8
Protection against unauthorized changes to the configuration.............................84

Installation and start-up..................................................................................9

5
5.1
5.2
5.3
5.4

Required conditions........................................................................................9
Selection......................................................................................................10
Mechanical and pneumatic installation...........................................................10
Operation....................................................................................................10
Maintenance................................................................................................11

6
6.1
6.2
6.3

Proof testing.................................................................................................11
Visual inspection to avoid systematic failure....................................................12
Function testing.............................................................................................12
Proof test coverage (PTC)...............................................................................13

7

Repairs........................................................................................................13

8

Safety-related data......................................................................................13

4

SH 8015 EN

Scope1 Scope
1.1 General
The SAMSON Type 3241 Globe Valve in combination with an actuator (e.g. Type 3271 or
Type 3277 Pneumatic Actuator) is designed to regulate the flow rate, pressure or temperatureof liquids, gases or vapors.

1.2 Use in safety-instrumented systems
The valve can be used in safety-instrumented systems according to IEC 61508 andIEC 61511. The valve can be used in safety-instrumented systems up to SIL 2 (single device)and SIL 3 (redundant configuration) on observing the requirements of IEC 61508.
The safety-instrumented function of the valve is to be regarded as a Type A element in accordance with IEC 61508-2.
Note
The architecture and the interval between proof tests must be considered in order to achieve
the safety integrity level.
Tip
The diagnostic coverage can be increased and, as a result, the probability of failure on demand reduced by mounting a positioner with diagnostic capabilities on the control valve.

1.3 Versions and ordering data
Valves combined with actuators with travel stop and/or handwheel are not suitable for use
in safety-instrumented systems. All other versions are suitable for use in safety-instrumented
systems.

1.4 Mounting
The valve and actuator are normally delivered already assembled by SAMSON.

SH 8015 EN

5Technical data

2 Technical data
Table 1: DIN version
Nominal size

DN

15 to 150

Spheroidal
Cast iron EN- graphite iron
GJL-250 (EN- EN-GJS-40018-LT
JL1040)(EN-JS1049)

Material

Pressure rating
Type ofconnection

15 to 250

PN

10 · 16

15 to 300
Cast steel
1.061915 · 25 · 40 · 50 · 80

Cast steel
1.6220/1.1138

Cast stainlesssteel 1.4408

16 · 25

ForgedCast stainless Forged steel
stainless steel
steel 1.4308
1.04601.440410 · 16 · 25 · 40

Flanges

All DIN versions

Welding ends

DIN EN 12627 only for DN 25, 40, 50, 80, 100,
150, 200, 250, 300––

Seat-plug seal

Metal seal · Soft seal · High-performance metal seal

Characteristic

Equal percentage · Linear (according to Information Sheet u T 8000‑3)

Rangeability

50:1 for DN 15 to 50 ·Heating jacket

30:1 for DN 65 to 150 ·Up to DN 100: PN 25·

50:1 for DN 200 and larger

DN 125 and larger: PN 16

Application range according to the technical specifications and the explosion protection certificates.
Documents u www.samsongroup.com > Products > Electronic nameplate

RFID tag (optional)
Conformity

Temperature ranges in °C · Permissible operating pressures acc. to pressure-temperature diagrams (see Information Sheet u T 8000‑2)
All nominal sizes: –10 to +220
Nominal sizes DN 200 to 300 with high-temperature packing: –10 to +350

Body without insulating section
Insulating section–10 to+300–10 to+350–

Long 2)
Body with
Bellows seal

–10 to+300–10 to
+350

Valve
plug

Balanced–10 4) to+400–

Long 2)Standard–10 4) to+400

Metal seal

–50 to+450 1)–50 to+300–50 to+300 1)–10 4) to+400–50 to+450–196 to+450––196 to+300––196 to+450–50 to+450 1)–50 to+300–50 to+300 1)–10 4) to+400–50 to+450–196 to+450––196 to+300––196 to+450–196 to +450

Soft seal–196 to +220

PTFE ring–50 to +220 · Lower temperatures on request

With graphite ring

10 to 450

RFID tag (optional)Max. permissible operating temperature: 85 °C

Leakage class according to IEC 60534‑4
Metal seal
Valve
plug

1)
2)

6

Balanced

Standard: IV · High-performance metal seal: V 3)

Soft seal

VI

Metal seal

Standard: IV · With PTFE or graphite pressure-balancing ringSpecial version: V · For high-performance (only with PTFE balancing ring) on request

DN 200 and larger: down to –196 °C
Long insulating section or bellows seal up to DN 150

3)4)Leakage class V for temperatures <–50 °C on request
Version for lower temperatures on request

SH 8015 EN

Technical data

Table 2: ANSI version
Nominal size

NPS

1 to 10

Cast iron
A126 B

ASTM material
Pressure rating
Type ofconnection½ to 2½ to 12
Cast steel
A216 WCCCast st. steel
A351 CF8M½, 1, 1½, 2, 3 2)Cast steel
A352 LCCCast st. steel
A351 CF8

Forged steel
A105

Forged st. steel
A182 F316

Class

125

250

150/300

300

Flanges

FF

–

RF 1)

RF 1)

Welding ends––

ASME B16.25–

Thread

–

NPT

–

–

Seat-plug seal

Metal seal · Soft seal · High-performance metal seal

Characteristic

Equal percentage · Linear (according to Information Sheet u T 8000-3)

Rangeability

50:1 for NPS ½ to 2 · 30:1 for NPS 2½ to 6 · 50:1 for NPS 8 and larger

Heating jacket

Class 150
Application range according to the technical specifications and the explosion protection certificates.
Documents u www.samsongroup.com > Products > Electronic nameplate

RFID tag (optional)
Conformity

Temperature ranges in °C (°F) · Permissible operating pressures according to pressure-temperature diagram (see Information Sheet u T 8000-2)
All nominal sizes: –10 to +220 °C (14 to 428 °F)
Nominal sizes NPS 8 to 12 with high-temperature packing: –10 to +350 °C (14 to 662 °F)

Body with standard bonnet

Body with

Insulating section in °C(°F)–29 to +232(–20 to +449)–29 to +425(–20 to +797)–––29 to +232(–20 to +449)–29 to +425(–20 to +797)

–

–

Long
Bellows seal in °C (°F)

Valve plug

Long

Standard

Balanced

Metal seal

–50 to +450 3) –46 to +345 –50 to +450 3) –29 to +425 –50 to +450 3)(–58 to +842) (–50 to +653) (–58 to +842) (–20 to +797) (–58 to +842)–196 to +450(–320 to+842)–

–196 to +450(–320 to +842)–196 to +450(–320 to +842)–50 to +450 3) –46 to +345 –50 to +450 3) –29 to +425 –50 to +450 3)(–58 to +842) (–50 to +653) (–58 to +842) (–20 to +797) (–58 to +842)–196 to +450(–320 to+842)–

–196 to +450(–320 to +842)––196 to +450(–320 to +842)–196 to +450 °C (–320 to +842 °F)

Soft seal–196 to +220 °C (–320 to +428 °F)

PTFE ring–50 to +220 °C (–58 to +428 °F) · Lower temperatures on request

W. graphitering

10 to 450 °C (50 to 842 °F)

RFID tag (optional)–Max. permissible operating temperature: 85 °C (185 °F)

Valve plug

Leakage class according to ANSI/FCI 70‑21)2)Standard
Balanced

Metal seal

Standard: IV · High-performance metal seal: V 4)

Soft seal

VI

Metal seal

Standard IV · With PTFE or graphite balancing ringSpecial version V · For high-performance (only with PTFE balancing ring) on request

Other versions on request
NPS 3 only in A 105

SH 8015 EN

3)4)

DN 200 and larger: down to –196 °C (–320 °F)
Leakage class V for temperatures <–50 °C (<–58 °F) on request

7

Safety-related functions

Note
Technical data for the other versions (e.g. PSA, Type 3241-Gas) can be found in the corresponding data sheets. See section ‘Further documentation’.

3 Safety-related functions
3.1 Safety-related fail-safe action
The valve, in combination with a pneumatic actuator, controls the process medium flowing
through it. When the signal pressure acting on the actuator is changed, the springs in the actuator move the actuator stem downward or upward to close or open the valve. The fail-safe
action is triggered when no signal pressure is applied to the actuator.

3.2 Fail-safe action
The signal pressure is normally applied to the actuator. The actuator is vented upon demandas part of the safety-instrumented function. As soon as the actuator is vented (signal pressure = atmospheric pressure), the spring forces cause the actuator stem to move to the failsafe position. The valve is completely open or completely closed.
Depending on the actuator's direction of action (see the associated actuator documentation),
the valve has one of the following fail-safe positions:− "Actuator stem extends" fail-safe action: in the event of emergency, the springs move theactuator stem downward and close the valve.
− "Actuator stem retracts" fail-safe action: in the event of emergency, the springs move theactuator stem upward and open the valve.

3.3 Protection against unauthorized changes to the configuration
The valve's fail-safe position depends on the mounted actuator's direction of action. The actuator's direction of action can be reversed. However, this is not possible while the process isrunning.

8

SH 8015 EN

Installation and start-up

4 Installation and start-up
The valve is delivered ready to install and can be installed into the pipeline without the needfor any additional installation work. Refer to the valve documentation on how to install andstart-up the valve.
Î SAMSON recommends installing the valve with the actuator upright and on top of thevalve. If another mounting position is used that is less favorable, the plant operator mustensure that the functional safety is not impaired as a result. This can be achieved, for example, by changing the test plan accordingly or shortening the intervals between tests.
Î Tilting or tipping over of the valve must be prevented.
Tip
We recommend checking the installation and start-up using a checklist. Examples of suchchecklists are included in VDI 2180-2 and the SAMSON brochure WA 236 (Functional safety of globe valves, rotary plug valves, ball valves and butterfly valves).

5 Required conditions! WARNING
Risk of malfunction due to incorrect selection or wrong installation and operating conditions.
Î Only use valves in safety-instrumented systems if the necessary conditions in the plant are
fulfilled.
Tip
We recommend checking the necessary conditions using a checklist. Examples of such checklists are included in VDI 2180-2 and the SAMSON brochure WA 236 (Functional safety of
globe valves, rotary plug valves, ball valves and butterfly valves).

SH 8015 EN

9Required conditions

5.1 Selection
Î The suitability of the entire control valve assembly (valve, actuator, valve accessories) for
the intended use (pressure, temperature) has been checked.
Î The valve materials are suitable for the process medium.
Î The actuator is correctly sized based on the required transit time and thrust.

5.2 Mechanical and pneumatic installation
Î The valve is installed properly into the pipeline as described in the mounting and operating instructions and the actuator is mounted on it. Valve accessories are mounted correctly.
Î The prescribed direction of flow is observed. The arrow on the valve indicates the direction of flow.
Î The control valve is configured with the correct fail-safe position (stem extends or retracts).
Î The tightening torques (e.g. for the flanged joints) are observed.
Î A strainer must be installed when the process medium contains solids, which could block
the valve.
! WARNING
The strainer may block the medium flow in a control valve assembly with "actuator stem
retracts" fail-safe action.
Î Valves with "actuator stem retracts" fail-safe action must not be fitted with a strainer.

5.3 Operation
Î The plug stem is not blocked.
Î The medium flow through the valve is not blocked.
Î The valve is only used in operating conditions that meet the specifications used for sizingat the ordering stage.

10

SH 8015 EN

Proof testing

5.4 MaintenanceÎ Maintenance is only performed by fully trained, qualified operating personnel.
Î Only original parts are used for spare parts.
Î Service work is performed as described in the 'Servicing' chapter of the associated valve
documentation.
Tip
Contact SAMSON's After-sales Service concerning any work not described in the 'Servicing'chapter in the associated valve documentation.

6 Proof testing
The proof test interval and the extent of testing lie within the operator's responsibility. The
operator must draw up a test plan, in which the proof tests and the interval between them
are specified. We recommend summarizing the requirements of the proof test in a checklist.
! WARNING
Risk of dangerous failure due to malfunction in the event of emergency (valve does not
move to the fail-safe position).
Î Only use devices in safety-instrumented systems that have passed the proof test according
to the test plan drawn up by the operator.
To test the safety-instrumented function properly, the following requirements must be met:
− Valve and actuator are assembled together properly.
− The control valve is installed properly into the plant.
Regularly check the safety-instrumented function of the entire SIS loop. The test intervals are
determined, for example on calculating each single SIS loop in a plant (PFDavg).
Tip
We recommend performing the proof tests based on a checklist. An example of such achecklist is included in the SAMSON brochure WA 236 (Functional safety of globe valves,
rotary plug valves, ball valves and butterfly valves).

SH 8015 EN

11

Proof testing

6.1 Visual inspection to avoid systematic failure
To avoid systematic failure, inspect the valve regularly. The frequency and the scope of the inspection lie within the operator's responsibility. Take application-specific influences into account, such as:− Blockage of plug stem
− Corrosion (destruction primarily of metals due to chemical and physical processes)− Material fatigue− Wear induced by the process medium− Abrasion (material removed by solids contained in the process medium)− Medium deposits− Aging (damage caused to organic materials, e.g. plastics or elastomers, by exposure tolight and heat)− Chemical attack (organic materials, e.g. plastics or elastomer, which swell, leach out or
decompose due to exposure to chemicals)! NOTICE
Risk of malfunction due to the use of unauthorized parts.
Î Only use original parts to replace worn parts.

6.2 Function testing
Regularly check the safety-instrumented function according to the test plan drawn up by theoperator.
Note
Record any positioner faults and e-mail (aftersalesservice@samsongroup.com) them to
SAMSON.
Safety-related fail-safe action
1. Supply the actuator with the signal pressure to allow the valve to move to the end position (completely open or closed).
2. Disconnect the signal pressure. This must cause the valve to move to its fail-safe position.
3. Check whether the valve reaches the end position within the required time.

12

SH 8015 EN

Repairs

4. Check whether the maximum permissible leakage is observed.
Safety-instrumented function of valve accessories
Î Check the safety-instrumented function of valve accessories. Refer to the associated safety
manuals.

6.3 Proof test coverage (PTC)
The proof test coverage (PTC) depends on the application in which the control valve is used
and on the valve accessories mounted on the control valve.
Î Contact SAMSON for the proof test coverage (PTC).
Go to the SAMSON website (www.samsongroup.com) to find your local SAMSON subsidiary.

7 Repairs
Only perform the work on the valve described in the valve documentation.
! NOTICE
Safety-instrumented function will be impaired if repair work is performed incorrectly.
Î Only allow trained staff to perform service and repair work.

8 Safety-related data
The Type 3241 Valve is suitable for use in safety-instrumented systems according toIEC 61508 and IEC 61511. It is suitable for use in safety-instrumented systems up to SIL 2(single device) and SIL 3 (redundant configuration) according to IEC 61508. The evidence isbased on prior use combined with an FMEA.
Safety-related data
λsafe, undetected

1140 FIT

λsafe, detected

0 FIT

λdangerous, undetected

73 FITλdangerous, detected

0 FIT

SH 8015 EN

13

Safety-related data

PFDavg. with annual test

3.18 × 10–4

HFT (Hardware Fault Tolerance)0

DC (Diagnostic Coverage)0

Device typeA

Safe failure fraction (SFF)

94 %MTBFtotal

95 years
1560 years

MTBFdangerous, undetected
1 FIT = 1 failure per 10 hours
9

Useful lifetime
According to IEC 61508-2, section 7.4.9.5, a useful lifetime of eight to twelve years can beassumed. Other values can be used based on the user's previous experience (prior use).
Intended use− See the mounting and operating instructions for the valve:u EB 8015:
u EB 8012:
u EB 8020:

Mounting and operating instructions (DIN)
Mounting and operating instructions (ANSI, JIS)
Mounting and operating instructions for Type 3241-Gas− Quality requirements for instrument air: see mounting and operating instructions or operating manual for mounted valve accessories (e.g. positioner, solenoid valve)
Safety-related assumptions
In case of fault, the actuator is vented, causing the valve to move to its fail-safe position.
Note
A positioner can be used to perform sophisticated diagnostics while the process is running.
Depending on the application, this may result in a diagnostic coverage for dangerous failures of ≥70 %.
Requirements− Short mean time to repair compared to the average rate of demand.
− Normal exposure to industrial environment and fluids.
− The user is responsible for ensuring that the device is used as intended.

14

SH 8015 EN

Safety-related data

SH 8015 EN

15

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samsongroup.com · www.samsongroup.com

2024-06-04 · English

SH 8015 EN