Samson 3321CT Mounting And Operating Instructions
Mounting and
Operating Instructions
EB 8115 EN
Translation of original instructions
Edition May 2018
Type3321CT Valve (Clean Tech)
For combining with actuators, e.g. with Type3379 Pneumatic
Actuator
DIN version
2 EB 8115 EN
Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices.
Î For the safe and proper use of these instructions, read them carefully and keep them for
later reference.
Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesservice@samson.de).
The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
at www.samson.de > Service & Support > Downloads > Documentation.
Denition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
Contents
EB 8115 EN 3
1 Safety instructions and measures ...................................................................5
1.1 Notes on possible severe personal injury .........................................................8
1.2 Notes on possible personal injury ...................................................................8
1.3 Notes on possible property damage ................................................................9
2 Markings on the device ...............................................................................10
1.4 Valve labeling ..............................................................................................10
1.5 Actuator nameplate ......................................................................................11
3 Design and principle of operation ................................................................12
1.1 Fail-safe positions ........................................................................................12
1.1 Technical data .............................................................................................14
4 Measures for preparation ............................................................................16
1.1 Unpacking ..................................................................................................16
1.2 Transporting and lifting ................................................................................16
1.2.1 Transporting ................................................................................................17
1.2.2 Lifting ..........................................................................................................17
1.1 Storage .......................................................................................................18
1.2 Preparation for installation ............................................................................19
5 Mounting and start-up ................................................................................. 20
1.1 Mounting the actuator onto the valve .............................................................20
1.2 Installing the valve into the pipeline ...............................................................22
1.2.1 Checking the installation conditions ...............................................................22
1.2.2 Additional ttings .........................................................................................24
1.2.3 Installing the control valve .............................................................................24
1.3 Preparing for operation ................................................................................24
1.4 Quick check ................................................................................................25
6 Operation ...................................................................................................26
7 Servicing.....................................................................................................27
1.1 Replacing the gasket ....................................................................................28
1.2 Replacing the packing ..................................................................................30
1.3 Replacing the seat and plug ..........................................................................31
1.4 Preparation for return shipment ..................................................................... 32
4 EB 8115 EN
Contents
1.5 Ordering spare parts and operating supplies .................................................33
8 Malfunctions ...............................................................................................34
1.1 Troubleshooting ...........................................................................................34
1.1 Emergency action ........................................................................................35
9 Decommissioning and disassembly ..............................................................36
1.1 Decommissioning .........................................................................................36
1.2 Removing the valve from the pipeline .............................................................36
1.3 Disposal ......................................................................................................36
10 Appendix ....................................................................................................37
1.1 After-sales service ........................................................................................37
1.2 Certicates ..................................................................................................37
1.1 Spare parts .................................................................................................39
EB 8115 EN 5
Safety instructions and measures
1 Safety instructions and measures
Intended use
The SAMSON Type3321CT Globe Valve in combination with an actuator (e.g. Type3379
Pneumatic Actuator) is designed to regulate the ow rate, pressure or temperature of liquids,
gases or vapors.
The valve with its actuator is designed to operate under exactly dened conditions (e.g. oper-
ating pressure, process medium, temperature). Therefore, operators must ensure that the con-
trol valve is only used in operating conditions that meet the specications used for sizing the
valve at the ordering stage. In case operators intend to use the control valve in other applica-
tions or conditions than specied, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the device for its intended purpose or for damage caused by external forces or any other external
factors.
Î Refer to the technical data and nameplate for limits and elds of application as well as
possible uses.
Reasonably foreseeable misuse
The control valve is not suitable for the following applications:
− Use outside the limits dened during sizing and by the technical data
− Use outside the limits dened by the valve accessories mounted on the control valve
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts
− Performing service and repair work not described in these instructions
Qualications of operating personnel
The control valve must be mounted, started up, serviced and repaired by fully trained and
qualied personnel only; the accepted industry codes and practices are to be observed. According to these mounting and operating instructions, trained personnel refers to individuals
who are able to judge the work they are assigned to and recognize possible hazards due to
their specialized training, their knowledge and experience as well as their knowledge of the
applicable standards.
6 EB 8115 EN
Safety instructions and measures
Personal protective equipment
We recommend checking the hazards posed by the process medium being used (e.g.
uGESTIS (CLP) hazardous substance database).
Î Provide protective equipment (e.g. safety gloves, eye protection) appropriate for the pro-
cess medium used.
Î Wear hearing protection when working near the valve.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions, conversions or other modications of the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Fur-
thermore, the product may no longer meet the requirements for its intended use.
Safety devices
Upon supply air or control signal failure, the valve moves to its fail-safe position (see sec-
tion3.1). The fail-safe action of the actuator is the same as its direction of action and is specied on the nameplate of SAMSON actuators (see actuator documentation).
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the control valve by the process medium, the operating pressure, the signal pressure or by moving parts by taking appropriate precautions. They
must observe all hazard statements, warning and caution notes in these mounting and operating instructions, especially for installation, start-up and service work.
We also recommend checking the hazards posed by the process medium being used (e.g.
uGESTIS (CLP) hazardous substance database).
Î Observe safety measures for handling the device.
Responsibilities of the operator
The operator is responsible for proper operation and compliance with the safety regulations.
Operators are obliged to provide these mounting and operating instructions as well as the
referenced documents to the operating personnel and to instruct them in proper operation.
Furthermore, the operator must ensure that operating personnel or third persons are not exposed to any danger.
EB 8115 EN 7
Safety instructions and measures
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
well as the referenced documents and observe the specied hazard statements, warnings
and caution notes. Furthermore, the operating personnel must be familiar with the applicable
health, safety and accident prevention regulations and comply with them.
Referenced standards and regulations
The control valves comply with the requirements of the European Pressure Equipment Directive 2014/68/EU. Valves with a CE marking have an EU declaration of conformity, which
includes information about the applied conformity assessment procedure. This EU declaration
of conformity is included in the Appendix of these instructions (see section10.2).
According to the ignition risk assessment performed in accordance with EN13463-1:2009,
section 5.2, the non-electrical control valves do not have their own potential ignition source
even in the rare incident of an operating fault. As a result, they do not fall within the scope of
Directive 2014/34/EU.
Î For connection to the equipotential bonding system, observe the requirements specied in
section 6.4 of EN60079-14 (VDE0165 Part 1).
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
− Mounting and operating instructions for the mounted actuator, e.g. uEB8315 for
Type3379 Pneumatic Actuator
− Mounting and operating instructions for mounted valve accessories (positioner, solenoid
valve, etc.)
− uAB0100 for tools, tightening torques and lubricant
8 EB 8115 EN
Safety instructions and measures
1.1 Notes on possible severe personal injury
DANGER
!
Risk of bursting in pressure equipment.
Valves and pipelines are pressure equipment. Improper opening can lead to valve
components bursting.
Î Before starting any work on the valve, depressurize all plant sections concerned as
well as the valve.
Î Drain the process medium from all the plant sections concerned as well as the
valve.
Î Wear personal protective equipment.
1.2 Notes on possible personal injury
WARNING
!
Crush hazard arising from moving parts.
The control valve contains moving parts (actuator and plug stems), which can injure
hands or ngers if inserted into the valve.
Î Do not insert hands or ngers into the yoke while the valve is in operation.
Î While working on the control valve, disconnect and lock the pneumatic air supply.
Risk of personal injury when the pneumatic actuator vents.
While the valve is operating, the actuator may vent during closed-loop control or when
the valve opens or closes.
Î Install the control valve in such a way that the actuator does not vent at eye level.
Î Use suitable silencers and vent plugs.
Î Wear eye protection when working in close proximity to the control valve.
Risk of personal injury due to residual process medium in the valve.
While working on the valve, residual process medium can escape and, depending on
its properties, may lead to personal injury, e.g. (chemical) burns.
Î If possible, drain the process medium from all the plant sections concerned and the
valve.
Î Wear protective clothing, safety gloves, and eyewear.
EB 8115 EN 9
Safety instructions and measures
WARNING
!
Risk of burn injuries due to hot or cold components and pipelines.
Depending on the process medium, valve components and pipelines may get very hot
or cold and cause burn injuries.
Î Allow components and pipelines to cool down or heat up.
Î Wear protective clothing and safety gloves.
1.3 Notes on possible property damage
NOTICE
!
Risk of valve damage due to contamination (e.g. solid particles) in the pipeline.
The plant operator is responsible for cleaning the pipelines in the plant.
Î Flush the pipelines before start-up.
Î Observe the maximum permissible pressure for valve and plant.
Risk of valve damage due to unsuitable medium properties.
The valve is designed for a process medium with dened properties.
Î Only use the process medium specied for sizing.
Risk of leakage and valve damage due to excessively high or low tightening torques.
Observe the specied torques on tightening control valve components. Excessively tightened torques lead to parts wearing out quicker. Parts that are too loose may cause leak-
age.
Î Observe the specied tightening torques (uAB0100).
Risk of valve damage due to the use of unsuitable tools.
Certain tools are required to work on the valve.
Î Only use tools approved by SAMSON (uAB0100).
Risk of valve damage due to the use of unsuitable lubricants.
The lubricants to be used depend on the valve material. Unsuitable lubricants may corrode and damage the valve surface.
Î Only use lubricants approved by SAMSON (uAB0100).
10 EB 8115 EN
Markings on the device
NOTICE
!
Risk of contamination of the process medium through the use of unsuitable lubricant
and/or contaminated tools and components.
Î Keep the valve and the tools used free from solvents and grease.
Î Make sure that only suitable lubricants are used (uAB0100).
2 Markings on the device
2.1 Valve labeling
6 7
12
14
15
16
17
1…5
9
20
1…5 PED (Pressure Equipment Directive), "Art. 4, Abs. 3"
ID of the notied body, uid group and category
6 Type designation
7 Device index
9 Year of manufacture
12 Production number
14 Flow coefcient: K
VS
15 Characteristic: % (equal percentage)
16 Seat-plug seal:
ME: metal
PK: soft seal with PEEK
17 Seat code (trim material): 00 (1.4404)
20 Country of origin
The details on the device version are lasered onto the valve bonnet (Fig.1). No nameplate is
used.
EB 8115 EN 11
Markings on the device
Valve labeling
Fig.1: Valve labeling
2.2 Actuator nameplate
See associated actuator documentation.
12 EB 8115 EN
Design and principle of operation
3 Design and principle of oper-
ation
The single-seated Type3321CT Globe Valve
is preferably combined with a SAMSON
Type3379 Pneumatic Actuator.
The seat (2) and plug with plug stem (3) are
installed in the body (1). The plug stem has a
thread to screw it onto the actuator stem and
is sealed by the spring-loaded packing (8).
The process medium ows through the valve
in the direction indicated by the arrow in the
ow-to-open direction. The plug position determines the cross-sectional area between
the seat and plug.
The position of the plug is changed by the
control signal acting on the actuator.
3.1 Fail-safe positions
Depending on how the compression springs
are arranged in the pneumatic actuator, the
valve has two fail-safe positions that become
effective when the supply air fails:
− Fail-close: the valve is closed upon air
supply failure.
− Fail-open: the valve is opened upon air
supply failure.
1 Body
2 Seat
3 Plug
4 Guide bushing
7 Valve bonnet
8 V-ring packing
10 Hexagon screw
13 Body gasket
14 Flange
Fig.2: Type3321CT Valve,
DN15 to 25
2
3
10
14
13
4
1
8
7
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