The operating instructions describes the entire life cycle of the device.
Keep these instructions in a location which is easily accessible to
every user, and make these instructions available to every new owner
of the device.
WARNING!
The operating instructions contain important safety
information!
Failure to observe these instructions may result in hazardous
situations.
▶ The operating instructions must be read and understood.
1.1 Symbols
DANGER!
Warns of an immediate danger!
▶ Failure to observe the warning may result in a fatal or serious
injury.
WARNING!
Warns of a potentially dangerous situation!
▶ Failure to observe the warning may result in serious injuries or
death.
CAUTION!
Warns of a possible danger!
▶ Failure to observe this warning may result in a moderate or
minor injury.
NOTE!
Warns of damage to property!
▶ Failure to observe the warning may result in damage to the
device or the equipment.
Indicates important additional information, tips and
recommendations.
Refers to information in these operating instructions or in
other documentation.
→ Designates a procedure which you must carry out.
1.2 Definition of term / abbreviation
The term “device” used in these instructions always stands for the
globe valve Type 2101.
The abbreviation “Ex” used in these instructions always stands for
“explosion-protected”.
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Type 2101
Authorized use
2 AUTHORIZED USE
Non-authorized use of the globe valve Type 2101 may be a
hazard to people, nearby equipment and the environment.
▶ The device is designed for the controlled flow of liquid and
gaseous media.
▶ The admissible data, the operating conditions and conditions of
use specified in the contract documents, operating instructions
and on the type label are to be observed during use. These are
described in the chapter entitled “5 Product description”.
▶ The device may be used only in conjunction with third-party
devices and components recommended and authorized by
Bürkert.
▶ Correct transportation, correct storage and installation and
careful use and maintenance are essential for reliable and faultless operation.
▶ Use the device only as intended.
2.1 Restrictions
If exporting the system/device, observe any existing restrictions.
3 BASIC SAFETY INSTRUCTIONS
These safety instructions do not make allowance for any
• contingencies and events which may arise during the installation,
operation and maintenance of the devices.
• local safety regulations, whereby the operator is responsible for their
compliance, by the installation personnel too.
DANGER!
Danger – high pressure!
▶ Before dismounting the lines and valves, turn off the pressure
and vent the lines.
Risk of electric shock!
▶ Before reaching into the device, switch off the power supply
and secure to prevent reactivation!
▶ Observe applicable accident prevention and safety regulations
for electrical equipment!
WARNING!
Risk of injury when opening the actuator!
The actuator contains a tensioned spring. If the actuator is
opened, there is a risk of injury from the spring jumping out!
▶ The actuator must not be opened.
Risk of injury from moving parts in the device!
▶ Do not reach into openings.
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5
Type 2101
Basic safety instructions
CAUTION!
Risk of burns!
The surface of the device may become hot during long-term
operation.
▶ Do not touch the device with bare hands.
General hazardous situations.
To prevent injury, ensure:
▶ That the system cannot be activated unintentionally.▶ Installation and repair work may be carried out by authorized
technicians only and with the appropriate tools.
▶ After an interruption in the power supply or pneumatic supply,
ensure that the process is restarted in a defined or controlled
manner.
▶ The device may be operated only when in perfect condition and
in consideration of the operating instructions.
▶ The general rules of technology apply to application planning and
operation of the device.
▶ In the potentially explosion-risk area the globe valve Type 2101 may
be used only according to the specification on the separate Ex type
label. For use observe the additional information enclosed with the
device together with safety instructions for the explosion-risk area.
▶ Devices without a separate Ex type label may not be used in a
potentially explosive area.
To prevent damage to property of the device, ensure:
• Supply the media connections only with those media which are
specified as flow media in the chapter entitled “7 Technical data”.
• Do not put any loads on the valve (e.g. by placing objects on it
or standing on it).
• Do not make any external modifications to the valves. Do not paint
the body parts or screws.
The globe valve Type 2101 was developed with due consideration given to the accepted safety rules and is state-of-the-art.
Nevertheless, dangerous situations may occur.
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Type 2101
General information
4 GENERAL INFORMATION
4.1 Contact address
Germany
Bürkert Fluid Control Systems
Sales Center
Chr.-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. : 07940 - 10 91 111
Fax: 07940 - 10 91 448
E-mail: info@de.burkert.com
International
Contact addresses are found on the final pages of the printed operating manual.
You can also find information on the Internet under:
www.burkert.com
4.2 Warranty
The warranty is only valid if the device is used as authorized in accordance with the specified application conditions.
4.3 Information on the Internet
The operating instructions and data sheets for Type 2101 can be found
on the Internet at: www.burkert.com
5 PRODUCT DESCRIPTION
5.1 General description
The 2/2-way globe valve Type 2101 is suitable for liquid and gaseous
media.
It uses neutral gases or air (control media) to control the flow of water,
alcohol, oil, fuel, hydraulic fluid, saline solution, lye, organic solvent and
steam (flow media).
A special feature of globe valves are screwed-in seats which can be
used to reduce the orifice of the control valve in particular.
According to the general understanding of Bürkert, DN
designates the orifice of the seat, not the orifice of the line
connection.
5.2 Versions
There are 2 versions of the globe valve type 2101:
• Standard version – without separate Ex type label.
The standard version must not be used in the potentially explosive
area.
• Ex version – with separate Ex type label.
The Ex version may be used in the potentially explosive area. In
doing so, observe the specifications on the separate Ex type label
and the additional information enclosed with the device together
with safety instructions for the Ex area.
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7
Type 2101
Product description
5.3 Properties
• High tightness by self-adjusting packing glands
(spindle sealing element).
• High seat tightness by swivel plate.
• Actuator can be rotated steplessly through 360 °.
• Maintenance-free under normal conditions.
5.3.1 Options
• Control unit
Different versions of the control units are available depending on
the requirement.
• Stroke limitation
Limit of the maximum open position /flow rate by means of
adjusting screw.
• Feedback indicator
The device features mechanical limit switches or inductive proximity switches.
5.3.2 Device versions
The globe valve is available for the following actuator sizes:
ø 50 mm, ø 70 mm, ø 90 mm, ø 130 mm.
5.3.3 Restrictions
WARNING!
Risk of injury from water hammer.
A water hammer could crack the lines and device.
Due to the risk of water hammer, valves with a flow direction
above seat must not be used for liquid media.
▶ Consider the type of flow direction and the type of medium for
operation of the device.
5.4 Designated application area
Observe the maximum pressure range according to the
type label!
• Neutral gases and liquids up to 16 bar.
• Steam up to 11 bar absolute / 185 °C.
• Aggressive media.
5.4.1 Application areas
e.g. Plant construction
Food processing
Chemical engineering
Sterilizer construction
8
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Type 2101
Structure and function
6 STRUCTURE AND FUNCTION
6.1 Structure
The globe valve consists of a pneumatically actuated piston actuator
and a 2/2-way valve body.
The actuator is manufactured from polyphenylene sulphide (PPS).
The tried and tested, self-adjusting packing gland ensures high
tightness. The flow-enhancing valve body made of stainless steel
enables high flow values.
Transparent cap with position indicator
Actuator cover
Actuator body
Globe valve body
Flow direction arrow or
numbers for indicating the
direction of flow
Fig. 1: Globe valve Type 2101, structure and description (1)
The description of the control function (CF) can be found in
chapter entitled “6.2.1 Control functions (CF)”.
Air discharge connection for CFA, CFB
Pilot air port for CFI
Pilot air port for CFA, CFB, CFI
Release bore
Interface actuator/body
with flats
Port connection
Fig. 2: Globe valve Type 2101, Structure and Description (2)
2
1
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9
2(A)
2(B)
2(A)
Type 2101
Structure and function
6.2 Function
Depending on the version, the seat of the valve is closed with or
against the medium flow.
Spring force (CFA) or pneumatic pilot pressure (CFB and CFI) generates the closing force on the swivel plate. The force is transferred
via a spindle which is connected to the actuator piston.
6.2.1 Control functions (CF)
WARNING!
For control function I – Danger if pilot pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurise the device with
pilot pressure, then switch on the medium.
Control function A (CFA)
Normally closed by spring action
1(P)
Control function B (CFB)
Normally open by spring action
1(P)
Control function I (CFI)
Actuating function via reciprocal pressurisation.
1(P)
10
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Type 2101
Structure and function
6.2.2 Flow direction below seat
Depending on the version, the valve is closed against the medium
flow with spring force (control function A, CFA) or with pilot
pressure (control function B or I, CFB or CFI).
As the medium pressure is under the swivel plate, this pressure
contributes to the opening of the valve.
WARNING!
Medium may be discharged if minimum pilot pressure is too
low or medium pressure too high!
If the minimum pilot pressure is too low for CFB and CFI or the
permitted medium pressure is exceeded, leaks may occur.
▶ Observe minimum pilot pressure▶ Do not exceed medium pressure. ▶ See chapter entitled “7.4.1 Temperature ranges”.
CFACFB /
CFI
6.2.3 Flow direction above seat
The valve is closed by spring force (control function A, CFA) with
the medium flow. As the medium pressure is over the swivel plate, it
supports the closing process of the valve and also contributes to the
sealing of the valve seat. The valve is opened by the pilot pressure.
WARNING!
Risk of injury from water hammer.
A water hammer could crack the lines and device.
Due to the risk of water hammer, valves with a flow direction above seat must not be used for liquid media.
▶ Consider the type of flow direction and the type of medium for
operation of the device.
To ensure complete opening, the minimum pilot pressure
must be used!
Fig. 3: Flow direction below seat
(Rest open/closed, closing against medium)
Fig. 4: Flow direction above seat (rest closed, closing with
medium)
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Type 2101
Technical data
7 TECHNICAL DATA
7.1 Conformity
Type 2101 conforms with the EC Directives according to the EC
Declaration of Conformity.
7.2 Standards
The applied standards, which verify conformity with the EC Directives, can be found on the EC-Type Examination Certificate and / or
the EC Declaration of Conformity.
7.3 Type label
Example:
CE
W3ZLT
00189700
2101 A 25M PTFE VA
Tmed -10°C - +180°C
Flow 1 2 DIN
Pilot 4,8-10bar
Pmed 16,0bar
DN25 Kv13,0
Fig. 5: Example of type label
WARNING!
Risk of injury from high pressure!
Important device-specific technical specifications are indicated on
the type label.
▶ Observe permitted pressure range on the type label of the device.
Sealing material
Orifice of the body /
actuator size
Control function
(CF)
Type
00189700
ID number of
the device
Permitted medium
temperature
1)
2101 A 25M PTFE VA
Tmed -10°C - +180°C
Flow 1 2 DIN
Flow direction
Main dimensions
port connection
Body material
Permitted
medium pressure
Pilot 4,8-10bar
Pmed 16,0bar
DN25 Kv13,0
1)
Permitted
pilot pressure
CE identification
W3ZLT
Date of
manufacture
(encoded)
Flow capacity in
standard production
conditions
CE
12
1) For a description of the versions see the following chapter
entitled “7.5 General technical data”.
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Type 2101
Technical data
7.4 Operating conditions
7.4.1 Temperature ranges
Actuator
size
ø 50 mm
ø 70 mm
ø 90 mm
ø 130 mm
Tab. 1: Temperature Ranges
3) Pilot air ports with push-in connector
4) Pilot air ports with threaded bushing
Actuator
material
Medium
(for PTFE seal)
PPS-10 – +185 °C
2) If a pilot valve is used, the max. ambient temperature is
+55 °C.
The globe valve is suitable for steam sterilization.
Environment
0 – +60 °C
0 – +100 °C
7.4.2 Pressure ranges
Actuator size Maximum pilot pressure
ø 50 mm
2)
10 barø 70 mm
ø 90 mm
ø 130 mm7 bar
3)
4)
Tab. 2: Pressure Ranges
5) For the device version ø 70 / Orifice 50 / MC 13 the
maximum permitted pilot pressure is limited to 7 bar.
5)
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13
Type 2101
Technical data
Medium and pilot pressure for control function A, flow direction
below the seat (standard)
Maximum medium pressure
Orifice
DN
507090130507090130
10/152525
201620
25916
32
40616
50
-
655.016
1006
Tab. 3: Medium and pilot pressure for CFA, standard
[bar]
Actuator size ø [mm]Actuator size ø [mm]
-
8.516
10165
10
-
Minimum pilot pressure
5.2
-
-
[bar]
-
-
4.8
5
-5.680
-
Medium and pilot pressure for control function A, flow direction
below the seat reduced pressure spring force (EC04)
Maximum medium pressure
Orifice
DN
507090130507090130
10/151416
20612
2536
32
50
805
Tab. 4: Medium and pilot pressure for CFA, reduced pressure
-
spring force (EC04)
[bar]
Actuator size ø [mm]Actuator size ø [mm]
-
-
3.59
3.510
-
7.5
-
Minimum pilot pressure
[bar]
3.2
2.5
-
-
2.5402616
-65
-3.2
-
2.5
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Type 2101
Technical data
Required minimum pilot pressure depending on medium
pressure
The following graphs illustrate the required minimum pilot pressure
depending on the medium pressure for control functions A, B and I.
Control function A, flow direction above seat
ø 50
CFA above seat
16
14
12
10
8
6
4
2
0
012345678910
Medium pressure [bar]
DN15
DN20
DN25
Pilot pressure [bar]
Fig. 6: Pressure graph, actuator ø 50 mm, control function A, flow
direction above seat
ø 70
CFA above seat
16
14
12
10
8
6
4
2
0
012345678910
Medium pressure [bar]
DN15
DN20
DN25
DN32
DN40
Pilot pressure [bar]
DN50
Fig. 7: Pressure graph, actuator ø 70 mm, control function A, flow
direction above seat
ø 90
CFA above seat
16
14
12
10
8
6
4
2
0
012345678910
Medium pressure [bar]
DN40
DN50
DN65
Pilot pressure [bar]
Fig. 8: Pressure graph, actuator ø 90 mm, control function A, flow
direction above seat
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15
Control functions B and I, flow direction below seat
ø 50 CFB/CFI
below seat
16
14
12
10
8
6
4
2
0
012345678910
Medium pressure [bar]
DN15
DN20
DN25
Pilot pressure [bar]
Fig. 9: Pressure graph, actuator ø 50 mm, control functions B and I,
flow direction below seat
Type 2101
Technical data
ø 90 CFB/CFI
below seat
DN32
16
14
12
10
8
6
4
2
0
012345678910
Medium pressure [bar]
Pilot pressure [bar]
DN40
DN50
DN65
Fig. 11: Pressure graph, actuator ø 90 mm, control functions B and I,
flow direction below seat
ø 70 CFB/CFI
below seat
DN25
DN32
DN15
16
14
12
10
8
6
4
2
0
012345678910
Medium pressure [bar]
DN20
DN40
DN50
Pilot pressure [bar]
Fig. 10: Pressure graph, actuator ø 70 mm, control functions B and I,
flow direction below seat
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ø 130 CFB/CFI
below seat
DN40
16
14
12
10
8
6
4
2
0
012345678910
Medium pressure [bar]
DN50
DN65
DN80
DN100
Pilot pressure [bar]
Fig. 12: Pressure graph, actuator ø 130 mm, control functions B and
I, flow direction below seat
Type 2101
Technical data
7.5 General technical data
Control functions (CF)
Control function A Normally closed by spring action
Control function B Normally open by spring action
Control function I Actuating function via reciprocal
pressurization
Actuator sizes ø 50 mm
ø 70 mm
ø 90 mm
ø 130 mm
Materials
Body 316L
Actuator PPS and stainless steel
Sealing elements FKM and EPDM
Spindle sealing PTFE V rings with spring compensation
(with silicone grease)
Seat seal PTFE (NBR, EPDM, FKM on request)
Swivel plate
Spindle 1.4401 / 1.4404
Spindle guide
DN10-65 PEEK
DN80-100 1.4401 / 1.4404
Connections
Pilot air port Plug-in connector 6/4 mm or 1/4”
others on request
Medium connection Socket: G ½ – G 4 (NPT, RC on request)
Weld end connection: in accordance with
ISO 4200, DIN 11850 R2
other connections on request
Media
Control medium Neutral gases, air
Flow media Water, alcohol, fuel, hydraulic liquids,
saline solutions, lye, organic solvents
Installation position as required, preferably with actuator in
upright position.
Protection class IP67 in accordance with IEC 529 /
EN 60529
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17
Type 2101
Installation
8 INSTALLATION
8.1 Safety instructions
DANGER!
Risk of injury from high pressure!
▶ Before loosening the lines and valves, turn off the pressure and
vent the lines.
WARNING!
Risk of injury from improper installation!
▶ Installation may be carried out by authorized technicians only
and with the appropriate tools!
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶ Secure system from unintentional activation.▶ Following installation, ensure a controlled restart.
For control function I – Danger if pilot pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the device with
pilot pressure, then switch on the medium.
Risk of injury from moving parts in the device!
▶ Do not reach into openings.
8.2 Before installation
• The globe valve can be installed in any installation position, preferably with the actuator face up.
• Before connecting the valve, ensure the lines are flush.
▶ When removing the actuator, ensure that the valve is in open
position.
→ Control function A pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
→ Using a suitable open-end wrench, place the wrench flat on the
tube.
→ Unscrew the actuator from the valve body.
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Type 2101
Installation
Air discharge connection
CFA, CFB
Pilot air port
Pilot air port
CFA, CFB, CFI
Release bore
Flats for open-end
wrench
Fig. 13: Installation
Other device versions
2
CFI
1
→ Do not remove actuator unless this is a customer-specific
requirement.
→ Procedure see “Devices with welded body”.
Actuator
Nipple
Valve body
8.3 Installation
WARNING!
Risk of injury from improper assembly!
Assembly with unsuitable tools or non-observance of the tightening torque is dangerous as the device may be damaged.
▶ For installation use an open-end wrench, never a pipe wrench.▶ Observe the tightening torque (see “Tab. 5: Tightening torques
of valve body / nipples”).
Dirt trap for devices with authorization in accordance with DIN
EN 161
In accordance with DIN EN 161 “Automatic shut-off valves for gas
burners and gas appliances” a dirt trap must be connected upstream
of the valve and prevent the insertion of a 1 mm plug gauge.
→ If the authorisation also applies to stainless steel bodies, the
same type of dirt trap must be attached in front of the globe
valve.
8.3.1 Installation of the valve body
Welded bodies
→ Weld valve body in pipeline system.
Other body versions
→ Connect body to pipeline.
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19
Type 2101
Installation
8.3.2 Install actuator (welded body)
Graphite seal
Fig. 14: Graphite seal
→ Check the graphite seal and if required, replace it.
WARNING!
Danger if incorrect lubricants used!
Unsuitable lubricant may contaminate the medium. In oxygen
applications there is a risk of an explosion!
▶ In specific applications, e.g. oxygen or analysis applications,
use appropriately authorised lubricants only.
→ Grease nipple thread before re-installing the actuator (e.g. with
Klüber paste UH1 96-402 from Klüber).
NOTE!
Damage to the seat seal or the seat contour!
▶ When installing the actuator, ensure that the valve is in open
position.
→ Control function A pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
→ Screw actuator into the valve body.
Observe tightening torque (see “Tab. 5: Tightening torques of
valve body / nipples”).
Air discharge connection
CFA, CFB
Pilot air port
Pilot air port
CFA, CFB, CFI
Fig. 15: Connections
Tightening torques of valve body / nipples
DNTightening torque [Nm]
Tab. 5: Tightening torques of valve body / nipples
2
CFI
1
65 ±3
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Type 2101
Installation
8.3.3 Rotating the actuator
The position of the connections can be aligned steplessly by rotating
the actuator through 360°.
NOTE!
Damage to the seat seal or the seat contour!
▶ When rotating the actuator, ensure that the valve is in open
position.
Procedure:
→ Clamp the valve body in a holding device
(applies only to valves which have not yet been installed).
→ Control function A pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
→ Counter on the flats of the nipple with a suitable open-end
wrench.
→ Actuator with hexagon:
Place suitable open-end wrench on the hexagon of the actuator.
→ Actuator without hexagon:
Fit special wrench6) exactly to the underside of the actuator.
6) The special key (identification number 665 702) is available from
your Bürkert sales office.
WARNING!
Risk of injury from discharge of medium and pressure!
If the direction of rotation is wrong, the body interface may
become detached.
▶ Rotate the actuator module in the specified direction only (see
“Fig. 16”)!
→ Actuator with hexagon:
Rotate counter-clockwise (as seen from below) to bring the
actuator module into the required position.
→ Actuator without hexagon:
Rotate clockwise (as seen from below) to bring the actuator
module into the required position.
Open-end wrench
Special key
with hexagon
Fig. 16: Rotating with special key / open-end wrench
without hexagon
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21
Type 2101
Installation
8.4 Pneumatic connection
DANGER!
Danger – high pressure in the equipment!
▶ Before loosening the lines and valves, turn off the pressure and
vent the lines.
WARNING!
Risk of injury from unsuitable connection hoses!
Hoses which cannot withstand the pressure and temperature
range may result in hazardous situations.
▶ Use only hoses which are authorised for the indicated pressure
and temperature range.
▶ Observe the data sheet specifications from the hose
manufacturers.
For control function I – Danger if pilot pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the device with
pilot pressure, then switch on the medium.
8.4.1 Connection of the control medium
If the position of the pilot air ports for installation of the
hoses is unfavorable, these can be aligned steplessly by
rotating the actuator through 360°.
The procedure is described in the chapter entitled “8.3.3
Rotating the actuator”.
Air discharge connection
CFA, CFB
Pilot air port CFI
Pilot air port
CFA, CFB, CFI
Fig. 17: Pneumatic connection
Control functions A and B:
2
1
→ Connect the control medium to the pilot air port 1 of the actuator
(see “Fig. 17”).
Silencer
For the versions with a plug-in connection the silencer for reducing
the exhaust air noise is supplied loose.
→ Plug the silencer into the free air discharge connection 2
(see “Fig. 17”).
If used in an aggressive environment, we recommend
conveying all free pneumatic connections into a neutral
atmosphere with the aid of a pneumatic hose.
22
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Type 2101
Installation
Control function I:
→ Connect the control medium to the pilot air port 1 and 2 of the
actuator (see “Fig. 18: Pneumatic connection”)
Pressure on connection 1 opens the valve.
Pressure on connection 2 closes the valve.
Air discharge connection
CFA, CFB
Pilot air port CFI
Pilot air port
CFA, CFB, CFI
Fig. 18: Pneumatic connection
Control air hose:
6/4 mm or 1/4” control air hoses can be used.
Optionally a pilot air port is possible via a G 1/8 thread.
2
1
8.5 Removal
DANGER!
Risk of injury from discharge of medium and pressure!
It is dangerous to remove a device which is under pressure due to
the sudden release of pressure or discharge of medium.
▶ Before removing a device, switch off the pressure and vent the
lines.
Procedure:
→ Loosen the pneumatic connection.→ Remove the device.
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23
Type 2101
Electrical control unit
9 ELECTRICAL CONTROL UNIT
The valve Type 2101 can be combined with following control units:
• Type 8690 Pneumatic Control Unit
• Type 8691 Control head (actuator size ∅ 70 - ∅ 130)
• Type 8695 Control head (actuator size ∅ 50)
• Type 8645 Automation system FreeLINE
• Type 6012 Pilot valve
• Type 6014 P Pilot valve
The electrical connection of the pilot valve or the control
unit is described in the respective operating instructions for
the pilot valve/control unit.
10 MAINTENANCE, CLEANING
10.1 Safety instructions
DANGER!
Danger – high pressure in the equipment!
▶ Before loosening the lines and valves, turn off the pressure and
vent the lines.
Risk of injury due to electrical shock!
▶ Before reaching into the system, switch off the power supply
and secure to prevent reactivation!
▶ Observe applicable accident prevention and safety regulations
for electrical equipment!
WARNING!
Risk of injury from improper maintenance!
▶ Maintenance may be performed by authorised technicians only!▶ To screw on or unscrew valve body or actuator, use an open-end
wrench, never a pipe wrench, and observe tightening torques.
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶ Secure system from unintentional activation.▶ Following maintenance, ensure a controlled restart.
24
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Type 2101
Maintenance, Cleaning
WARNING!
For control function I – Danger if pilot pressure fails!
For control function I control and resetting occur pneumatically.
If the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the device with
pilot pressure, then switch on the medium.
Risk of injury from moving parts in the device!
▶ Do not reach into openings.
10.2 Maintenance work
Actuator:
The actuator of the globe valve is maintenance-free provided it is
used according to these operating instructions.
Wearing parts of the globe valve:
Parts which are subject to natural wear:
• Seals
• Swivel plate
→ If leaks occur, replace the particular wearing part with an appro-
priate spare part.
(For spare-part sets and installation tools see chapter entitled
“12 Replacement parts”).
Visual inspection:
Perform regular visual inspections according to the application
conditions:
→ Check media connections for leaks.→ Check release bore on the tube for leaks.
Release bore
Fig. 19: Release bore
10.2.1 Cleaning
Commercially available cleaning agents can be used to clean the
outside.
NOTE!
Avoid causing damage with cleaning agents.
▶ Before cleaning, check that the cleaning agents are compatible
with the body materials and seals.
The replacing of the wearing parts is described in chapter
“10.3 Replacing the wearing parts”.
english
25
Type 2101
Maintenance, Cleaning
10.3 Replacing the wearing parts
10.3.1 Replacing the valve set
The valve set consists of
• Swivel plate
• Pin
• Graphite seal
Before the valve set can be replaced, the actuator must be removed
from the valve body.
DANGER!
Risk of injury from discharge of medium and pressure!
It is dangerous to remove a device which is under pressure due to
the sudden release of pressure or discharge of medium.
▶ Before removing a device, switch off the pressure and vent the
lines.
WARNING!
Risk of injury if the wrong tools are used!
It is dangerous to use unsuitable tools for installation work as the
device may be damaged.
▶ To remove the actuator from the valve body, use an open-end
wrench, never a pipe wrench.
Remove the actuator from the valve body:
→ Clamp the valve body in a holding device
(applies only to valves which have not yet been installed).
NOTE!
Damage to the seat seal or the seat contour!
▶ When removing the actuator, ensure that the valve is in open
position.
→ Control function A pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
→ Using a suitable open-end wrench, place the wrench flat on the
tube.
→ Unscrew the actuator from the valve body.
CFI
2
1
Actuator
Nipple
Valve body
Air discharge connection
CFA, CFB
Pilot air port
Pilot air port
CFA, CFB, CFI
Release bore
Flats for open-end
wrench
26
Fig. 20: Designation parts
english
Type 2101
Maintenance, Cleaning
Replacing valve set
Spindle
Pin
Swivel plate
Graphite seal
Fig. 21: Valve set
Procedure:
→ Support swivel plate on the cylindrical part with the aid of a
prism or something similar.
→ Knock out pin with a suitable pin punch.
Pin punch ø 3 mm, for spindle diameter 10 mm on the swivel
plate.
Pin punch ø 5 mm, for spindle diameter 14 mm on the swivel
plate.
→ Remove swivel plate.
→ Connect new swivel plate to the spindle.→ Align bores of the swivel plate and spindle.→ Support swivel plate on the cylindrical part with the aid of a
prism or something similar.
→ Insert pin into the bore.→ Swage pin bores on both sides of the swivel plate using a chisel
or center punch.
Installing the actuator on the valve body
→ Check the graphite seal and if required, replace it.
WARNING!
Danger if incorrect lubricants used!
Unsuitable lubricant may contaminate the medium. In oxygen
applications there is a risk of an explosion!
▶ In specific applications, e.g. oxygen or analysis applications, use
appropriately authorised lubricants only.
→ Grease nipple thread before re-installing the actuator (e.g. with
Klüber paste UH1 96-402 from Klüber).
english
27
Type 2101
Maintenance, Cleaning
NOTE!
Damage to the seat seal or the seat contour!
▶ When installing the actuator, ensure that the valve is in open
position.
→ Control function A pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
→ Screw actuator into the valve body.
Observe tightening torque (see “Tab. 6: Tightening torques of
valve body / nipples”).
Air discharge connection
CFA, CFB
Pilot air port
Pilot air port
CFA, CFB, CFI
Fig. 22: Connections
2
CFI
1
Tightening torques of valve body / nipples
OrificeTightening torque [Nm]
Tab. 6: Tightening torques of valve body / nipples
If the position of the pilot air ports for installation of the
hoses is unfavorable, these can be aligned steplessly by
rotating the actuator through 360°.
The procedure is described in the chapter entitled “8.3.3
Rotating the actuator”.
65 ±3
28
english
Type 2101
Maintenance, Cleaning
10.3.2 Replacing the packing gland
The packing gland cannot be replaced for the device
combination ø 70 / orifice 50.
The seal set for the packing gland contains
SP10 / SP14
• 1 support ring
• 7 chevron seals
• 2 pressure rings
• 1 pressure spring
• 1 spindle guide
• 1 graphite seal
• Lubricant
SP22
• 1 support ring
• 7 chevron seals
• 2 pressure rings
• 1 pressure spring
• 1 spacer
• 1 graphite seal
• Lubricant
Fig. 23: Seal set for packing gland
DANGER!
Risk of injury from discharge of medium and pressure!
It is dangerous to remove a device which is under pressure due to
the sudden release of pressure or discharge of medium.
▶ Before removing a device, switch off the pressure and vent the
lines.
WARNING!
Risk of injury if the wrong tools are used!
It is dangerous to use unsuitable tools for installation work as the
device may be damaged.
▶ To remove the actuator from the valve body, use an open-end
wrench, never a pipe wrench.
▶ To replace the packing gland, use a special installation wrench,
modified socket wrench or a socket wrench.
▶ Observe tightening torques.
Before the packing gland can be replaced, the actuator must be
removed from the valve body and the swivel plate removed.
english
29
Type 2101
Maintenance, Cleaning
Remove the actuator from the valve body:
→ Clamp the valve body in a holding device
(applies only to valves which have not yet been installed).
NOTE!
Damage to the seat seal or the seat contour!
▶ When removing the actuator, ensure that the valve is in open
position.
→ Control function A pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
→ Using a suitable open-end wrench, place the wrench flat on the
tube.
→ Unscrew the actuator from the valve body.
CFI
2
1
Actuator
Nipple
Valve body
Air discharge connection
CFA, CFB
Pilot air port
Pilot air port
CFA, CFB, CFI
Release bore
Flats for open-end
wrench
Removing the swivel plate
→ Knock out the pin with a suitable pin punch.
Pin punch ø 3 mm, for spindle diameter 10 mm on the swivel
plate.
Pin punch ø 5 mm, for spindle diameter 14 mm on the swivel
plate.
→ Remove swivel plate.
Spindle
Pin
Swivel plate
Graphite seal
Fig. 25: Valve set
Fig. 24: Designation parts
30
english
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