Stübbe MV 308 User manual

1
ASV Stübbe GmbH & Co. KG • Hollwieser Straße 5 • D-32602 Vlotho • Fon +49(0)5733 - 799-0 • Fax [phone] - 799-200 • www.asv-stuebbe.de • [email protected]
330019 – 2001/10/01
Advantages
• externally controlled 2/2-way valve for neutral, ag-
gressive or gaseous liquids
• compact design with high flow efficiency
• all control functions possible by adding or removing
the respective springs
• standard with lift limit and visual position indicator
• insensitive to highly contaminated fluids
Application
•chemicalplants
• water treatment
Utilisation
• as shut-off valves as well as for controlling in proc-
ess plants
Type of fluids
• neutral, aggressive liquids or gaseous media even
with abrasive particles provided that the compo-
nents getting in contact with the medium are resist-
ant at operating temperature according to the ASV
resistance guide.
Examinations
• requirements and examinations acc. to DIN 3441,
3442, 8063 and 16 963. DIN EN 12266, leak rate A
examinated.
Nominal pressure (H2O, 20°C)
•PN6
Media temperature
• see pressure/temperature diagram
Operating pressure
• see pessure/temperature diagram
Size
• DN 12 and DN 15
Body
•PVC-U
•PP
•PVDF
Diaphragm
•EPDM
•FPM
• PTFE-vulcanised EPDM-diaphragm on fluid side
Flow (kv-value)
• DN 12 3,0 m³/h
• DN 15 3,7 m³/h
Control function
• normally closed (NC)
• normally open (NO)
•doubleacting(DA)
Control pressure
• max. 7 bar (see page 2)
Connection DN 12
• threaded socket G 3/8"
• socket ends for solvent or fusion welding acc. to DIN
8063 or DIN 16 962
Connection DN 15
• unions acc. DIN 8063 with union socket ends for sol-
vent or fusion welding acc. to DIN 8063 or
DIN 16 962
• dimensions acc. to BS, ANSI and JIS on request
Colour
• body PVC-U grey, RAL 7011
PP grey, RAL 7032
PVDF opaque, yellowish-white
• bonnet orange, RAL 2004
Diaphragm Valve Type MV 308

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ASV Stübbe GmbH & Co. KG • Hollwieser Straße 5 • D-32602 Vlotho • Fon +49(0)5733 - 799-0 • Fax [phone] - 799-200 • www.asv-stuebbe.de • [email protected]
Pressure/temperature diagram
The pressure/temperature limits are applicable for the
stated nominal pressures and a computed operating life
factor of 25 years.
The values are a guide for harmless media (DIN 2403),
to which the material of the valve is resistant.
For other media see the ASV resistance guide.
Control curve
Durability of valve depends on the operating conditions
of the application.
For temperatures below 0 °C (PP < +10 °C) please
sepcify the precise operating conditions of the applica-
tion.
Ident number PVC-U
Ident number PP
Ident number PVDF
Diaphragm Valve MV 308
temperature (°C)
pressure (bar)
operating pressure (bar)
control pressure (bar)
body PVC-U normally closed NC normally open NO double acting DA
diaphragm EPDM FPM EPDM/
PTFE EPDM FPM EPDM/ PTFE EPDM FPM EPDM/ PTFE
connection G 3/8"-socket
d (mm) DN (mm) DN (inch)
16 12 3/8 120186 120187 120188 120195 120196 120197 120204 120205 120206
connection union socket ends for solvent welding
d (mm) DN (mm) DN (inch)
16 12 3/8 120213 120214 120215 120222 120223 120224 120231 120232 120233
20 15 1/2 120240 120241 120242 120249 120250 120251 120258 120259 120260
body PP normally closed NC normally open NO double acting DA
diaphragm EPDM FPM EPDM/
PTFE EPDM FPM EPDM/ PTFE EPDM FPM EPDM/ PTFE
connection G 3/8"-socket
d (mm) DN (mm) DN (Zoll)
16 12 3/8 120189 120190 120191 120198 120199 120200 120207 120208 120209
connection union socket ends for fusion welding
d (mm) DN (mm) DN (inch)
16 12 3/8 120216 120217 120218 120225 120226 120227 120234 120235 120236
20 15 1/2 120243 120244 120245 120252 120253 120254 120261 120262 120263
body PVDF normally closed NC normally open NO double acting DA
diaphragm EPDM FPM EPDM/
PTFE EPDM FPM EPDM/ PTFE EPDM FPM EPDM/ PTFE
connection G 3/8"-socket
d (mm) DN (mm) DN (inch)
16 12 3/8 120192 120193 120194 120201 120202 120203 120210 120211 120212
connection union socket ends for fusion welding
d (mm) DN (mm) DN (inch)
16 12 3/8 120219 120220 120221 120228 120229 120230 120237 120238 120239
20 15 1/2 120246 120247 120248 120255 120256 120257 120264 120265 120266
330019 – 2001/10/01

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ASV Stübbe GmbH & Co. KG • Hollwieser Straße 5 • D-32602 Vlotho • Fon +49(0)5733 - 799-0 • Fax [phone] - 799-200 • www.asv-stuebbe.de • [email protected]
Dimension and spare parts list
Diaphragm Valve MV 308
socket d 16
view A view A
female threaded
socket G 3/8"
item designation
1body
2bonnet
3insert
4pressure piece
5spindle
6indicator pin
7 diaphragm
8washer
9 pressure spring
10 pressure spring
11 nut
item designation
12 piston
13 O-ring
14 O-ring
15 O-ring
16 identification plate
17 hexagonal socket screw
18 nut
19 insert
20 O-ring
21 union nut
330019 – 2001/10/01

4
ASV Stübbe GmbH & Co. KG • Hollwieser Straße 5 • D-32602 Vlotho • Fon +49(0)5733 - 799-0 • Fax [phone] - 799-200 • www.asv-stuebbe.de • [email protected]
Operating instructions:
ATTENTION
Safe operation of the valve can only be ensured if it is
properly installed, operated, serviced or repaired by
qualified personnel according to its intended use while
observing the accident prevention regulations, safety
regulations, relevant standards and technical regula-
tions or data sheets such as e.g. DIN, DIN EN, DIN ISO
and DVS* for example. 9
*DVS = German Welding Society
The intended use includes adhering to the specified li-
mit values for pressure and temperature as well as che-
cking the chemical resistance with regard to the
operating conditions.
For this purpose, ensure that all components coming
into contact with the media are "resistant" in accor-
dance with the ASV resistance guide.
The owner/user must inform the authorized qualified
personnel instructed to perform the assembly, inspec-
tion and/or maintenance work of any potential danger
emanating from the machine line/medium, and ensure
that suitable safety measures are observed. This also
includes the consideration of local regulations and laws
of the territories of use.
The connection of electric or pneumatic actuators and/
or accessories to the power/compressed air supply re-
quires special knowledge. Ensure that this work is per-
formed only by authorized qualified personnel
according to the operating instruction of the manufac-
turer.
If no operating and maintenance manual is available to
the authorized qualified personnel, please request a
manual prior to installation, maintenance or repair.
Non-observance of the specified instructions and safety
regulations may cause damage to health and/or dama-
ge to assets. 9
Adjustment of lift limit
• Turn indicator pin (6) with appropriate screw driver
counter-clockwise.
• The maximal lift limit is appr. 2/3 of valve lift.
1. Disassembly
• The pipe section is to be shut off upstream and
downstream and to be emptied properly.
• Any fluid rest is to be disposed properly (see above).
• Adhere to the workers protection rules - if required
protection clothes must be worn.
2. Exchange of diaphragm
• Shut off compressed air towards diaphragm valve.
• Release compressed air connections of diaphragm
valve and remove them.
• Release hexagonal socket screws (17) with appro-
priate tool and remove them.
• Pull off bonnet (2) from body (1).
• Turn out diaphragm (7) from spindle (5).
• Pull off pressure piece (4) from diaphragm, assem-
bly see point 4.
3. Exchange of O-rings or piston
• Disassembly as described under point 2.
• Unscrew the insert (3) out of the bonnet (2) with an
appropriate spanner.
ATTENTION
The insert is under tension of spring. 9
• Unscrew indicator pin (6) from the spindle (5).
• Lever the O-ring (13) out of the O-ring groove with
a blunt tool and replace it.
• Pull out the spindle (5) out of the insert with rotating
movements.
• Release nut (11) and remove it together with wash-
er (8) from the shaft.
• Pull off piston (12) from the spindle and replace it.
• Carefully remove O-ring (14) from the insert and re-
place it.
• Dismount O-ring (15) from insert and replace it.
4. Assembly
• In the reverse order to disassembly.
Take care of correct installation of each component
according to sectional drawing.
• Always use new sealing elements when refitting.
• Neutral gliding agents (e.g. soap and water) eases
assembly.
• After each disassembly all connections are to be
checked for leakages prior using.
NOTE
Elastomeres, especially the EPDM sealing elements,
should not be touched or cleaned with synthetic oils,
mineral oils, fats or cleaning agents. 9
Danger of swelling. Only appropriate fats should be
used, e.g. silicone greases.
Subject to technical modifications
Diaphragm Valve MV 308
330019 – 2001/10/01