Richter RSS/F Series User manual

INSTALLATION AND OPERATING MANUAL
Keep for future use!
This operating manual must be strictly observed before
transport, installation, operation and maintenance
Subject to change without notice.
Reproduction is generally permitted with indication of the source.
© Richter Chemie-Technik GmbH
9560-060-en Revision 15 Edition 07/2016
Series RSS/F
Chemical Bellows-sealed
Globe Control Valve
remote actuated

Series RSS/F Page 2
9560-060-en Revision 15
TM 9549 Edition 07/2016
List of Contents
List of Contents.......................................... 2
Relevant documents.................................. 2
1Technical data....................................... 3
1.1 Name plate, CE and body markings............. 4
1.2 Screw-in tools for seats .................................. 4
1.3 Tightening torques .......................................... 4
1.4 Pressure-temperature diagram .................... 5
1.5 Flow values, kv100 (Cv)................................ 6
1.6 Cavitation coefficient z.................................... 7
1.7 Valve travel....................................................... 7
1.8 Opening and closing forces required............ 8
1.8.1 Standard bellows ..................................................8
1.8.2 Heavy-duty bellows...............................................8
2Notes on safety....................................10
2.1 Intended use .................................................. 10
2.2 For the customer / operator ......................... 10
2.3 Improper operation........................................ 10
3Safety notes for applications in
potentially explosive areas based on
the Directive 2014/34/EU (Atex) .........11
3.1 Intended use .................................................. 11
4Safety note for valves, certified to
Clean Air Act (TA-Luft)........................12
5Transport, storage and disposal .......12
5.1 Storage ........................................................... 12
5.2 Return consignments.................................... 12
5.3 Disposal .......................................................... 12
6Installation............................................13
6.1 Flange caps and gaskets ............................. 13
6.2 Direction of flow and installation position.. 13
6.3 Grounding ....................................................... 13
6.4 Test pressure ................................................. 13
6.5 Monitoring connection................................... 13
7Operation..............................................14
7.1 Initial commissioning..................................... 14
7.2 Improper operation and their consequences
...................................................................... 14
7.3 Shutdown........................................................ 14
8Malfunctions.........................................15
9Maintenance.........................................16
9.1 Setting the travel stop ................................... 16
9.2 Dismantling..................................................... 16
9.2.1 Maintenance of the upper section.................... 16
9.2.2 Dismantle valve .................................................. 16
9.2.3 Replace bellows ................................................. 16
9.2.4 Assembly............................................................. 17
9.3 Replacing seat ............................................... 17
9.3.1 V-plug................................................................... 18
9.4 Mounting the actuator ................................... 18
10 Drawings...............................................18
10.1 Legend ............................................................ 18
10.2 RSS/F Sectional drawing (with standard
UVV-bellows) ................................................. 19
10.3 Details, options and dimensions ................. 20
10.4 Dimensional drawing..................................... 21
10.4.1 Flange connecting dimensions......................... 22
Relevant documents
 Data sheet
 Manufacturer’s Declaration German Clean Air Act
(TA-Luft
 SIL Declaration by the Manufacturer
 Declaration of conformity acc. to the EC Pressure
Equipment Directive 2014/68/EU
 Form for Safety Information Concerning the
Contamination QM 0912-16-2001_en
 Operating manual actuator

Series RSS/F Page 3
9560-060-en Revision 15
TM 9549 Edition 07/2016
1 Technical data
Manufacturer :
Richter Chemie-Technik GmbH
Otto-Schott-Str. 2
D-47906 Kempen
Telephone: [phone]
Fax: [phone]
E-Mail: [email protected]om
Internet: http://www.richter-ct.com
Designation :
Chemical bellows-sealed globe control valve, series RSS/F,
with safety stuffing box and bellows (DN 150 only with
heavy duty-bellows) as well as interchangeable seat and
plug, actuated pneumatically or by electric motor.
Control characteristics to DIN EN 60534,
equal percentage, linear, on-off, rangeability 25:1.
V-plug, rangeability 100:1
Certified to Clean Air Act (TA-Luft)
Strength and tightness (P10, P11) of the pressure-bearing
body tested to DIN EN 12266-1.
Gas-tight (P12) in the seat to DIN EN 12266-1,
leak rate A
Face to face alternatively:
EN 558-1 basic series 1, ISO 5752 series 1
with flanges DIN EN 1092-2, type B
(ISO 7005-2 Type B) PN 16 or flanges drilled to ASME
B16.5 Class 150
 ANSI/ISA-75.08.09-2004, class 150 with flanges ASME
B16.5 Class 150, raised face
 ANSI/ISA-75.08.09-2004, class 300 with flanges ASME
B16.5 Class 300, raised face
Materials :
Body material: Ductile cast iron EN-JS 1049 /
ASTM A395
Lining material: PFA .../F
On request: antistatic …/F-L
highly permeation-resistant …/F-P
Bellows: PTFE, modified PTFE, Hastelloy
Seat and plug: reinforced modified PTFE,
at low Cv values also Hastelloy, tantalum
Design pressure :
PN 10 with standard PTFE bellows
with heavy-duty PTFE bellows with PTFE/carbon
support rings
PN 16 with heavy-duty PTFE bellows with stainless steel
support rings
with Hastelloy C bellows
See pressure-temperature diagram in Section 1.4.
Sizes :
DN 15, 20, 25, 40, 50, 65, 80, 100, 150 in mm
½“, ¾“, 1“, 1½“, 2“, 3“, 4“ in inches, Cl 150
1“, 1½“, 2“ in inches, Cl 300 on request
Temperature range : -60 °C to 180 °C
See pressure-temperature diagram in Section 1.4.
Installation position :
Normally in horizontal line with the actuator on top. See
Section 6.2.
The direction of flow is marked by an arrow cast into the
body.
Dimensions and individual parts :
See sectional drawings in Section 10.
Weight :
Nom. size
ISO ASME
Weight
ca. kg
ISO ASME
15
½“
6
6
20
¾“
6
6
25
1“
11
11
40
1½“
17
17
50
2“
19
19
65
--
20
--
80
3“
39
39
100
4“
44
44
150
6“
155
155
For weight of actuator, see actuator manufacturer's
manual.
Wear parts : Seat, plug, bellows
Options :
 Heavy-duty-PTFE-bellows (DN 25-100, 1“- 4“)
For permeating media and elevated pres-
sures/temperatures
 DN 80-150, 3“-6“ guide tube made of Hastelloy
 Hastelloy C-bellows (not DN 150)
For special applications (e.g. extreme permeation)
 V-control plug for small Cv values
 Monitoring connection
For higher safety requirements
 Actuator and actuator accessories

Series RSS/F Page 4
9560-060-en Revision 15
TM 9549 Edition 07/2016
1.1 Name plate, CE and body markings
The stainless steel name plate is undetachably riveted to
the body.
If the operator attaches his identification, it must be
ensured that the valve matches the application in
question.
Example of name plate with CE marking:
No CE marking is permissible for the sizes 15, 20 and 25;
the name plate therefore has no CE marking.
Example: Name plate for control data
If heavy-duty bellows are installed, another name plate
indicates this:
HD - BVA = Heavy-duty bellows with support rings of
stainless steel
HD - BKo = Heavy-duty bellows with support rings of
PTFE/carbon
Body identification:
The following are visible on the body according to DIN EN
19 and AD 2000 A4:
 Nominal size
 Rated pressure
 Body material
 Manufacturer's identification
 Melt number/Foundry identification
 Cast date
 Arrow for direction of flow
1.2 Screw-in tools for seats
Nom. size
Article No.
[mm]
[inch]
15, 20
½“, ¾“
9568-96-1011
25
1“
9568-96-1001
40
1½“
9568-96-1002
50, 65
2“
9568-96-1003
80
3“
9568-96-1004
100
4“
9568-96-1005
150
6“
9568-96-1013
1.3 Tightening torques
All screws greased, tighten in diametrically opposite
sequence!
The tightening torques for pipe screws and body screws
mentioned must not be exceeded. For an exception, see
Section 8, Flange connection valve / pipe is leaking.
The following tightening torques are recommended.
Pipe screws, flanges to ISO/DIN
Flange nom.
size
Screws
Tightening torque
[mm]
[ISO/DIN]
[Nm]
[in-lbs]
15
4 x M12
6
55
20
4 x M12
8
70
25
4 x M12
10
90
40
4 x M16
20
175
50
4 x M16
26
230
65
4 x M16
40
355
80
8 x M16
25
220
100
8 x M16
35
310
150
8 x M20
65
575
Pipe screws, flanges to ASME Class 150 or flanges ISO/DIN
drilled to ASME Class 150
Flange nom.
size
Screws
Tightening torque
[mm]
[inch]
[ASME]
[Nm]
[in-lbs]
15
½
4 x ½“
5
45
20
¾
4 x ½“
6
55
25
1
4 x ½“
8
70
40
1½
4 x ½“
15
135
50
2
4 x ⅝“
25
220
65
--
4 x ⅝“
30
265
80
3
4 x ⅝“
45
400
100
4
8 x ⅝“
35
310
150
6“
8 x ¾“
80
710
9500-43-1093.4-00.1

Series RSS/F Page 5
9560-060-en Revision 15
TM 9549 Edition 07/2016
Pipe screws, flanges to ASME Class 300
Flange nom.
size
Screws
Tightening torque
[mm]
[inch]
[ASME]
[Nm]
[in-lbs]
25
1“
4 x ⅝“
15
133
40
1½“
4 x ¾“
25
221
50
2“
8 x ⅝“
15
133
Cover screws ISO/DIN
Flange nom. size
Screws
Tightening torque
[mm]
[inch]
[ISO/DIN]
[Nm]
[in-lbs]
15
½“
4 x M10
30
266
20
¾“
4 x M10
30
266
25
1“
4 x M10
50
442
40
1½“
4 x M12
50
442
50
2“
4 x M12
50
442
65
--
4 x M12
50
442
80
3“
8 x M12
50
442
100
4“
8 x M12
50
442
150
6“
10 x M16
110
974
Cover screws ASME
Flange nom.
size
Screws
Tightening torque
[mm]
[inch]
[ASME]
[Nm]
[in-lbs]
15
½“
4 x ⅜"
30
266
20
¾“
4 x ⅜"
30
266
25
1“
4 x ½“
50
442
40
1½“
4 x ½“
50
442
50
2“
4 x ½“
50
442
80
3“
8 x ½“
50
442
100
4“
8 x ½“
50
442
Seat
Screws not greased
Flange nom.
size
Tightening torque
[mm]
[inch]
[Nm]
[in-lbs]
15
½“
3
26
20
¾“
3
26
25
1“
6
53
40
1½“
12
106
50
2“
16
142
65
2½“
16
142
80
3“
28
248
100
4“
30
265
150
6“
65
575
1.4 Pressure-temperature
diagram
According to AD 2000
According to ASME B 16.42
When used in the area of application of ASME or
ANSI/ISA, the low temperature of ASTM A395 is limited to
-20°F (-29°C).
When used in the minus temperature range, the
regulations applicable in the country in question
must be observed.

Series RSS/F Page 6
9560-060-en Revision 15
TM 9549 Edition 07/2016
1.5 Flow values, kv100 (Cv)
V- and Parabolic plugs
Nom. size
kv100
Cv
Seat -in mm
[mm] [inch]
8
8
8
8
8
8
8
8
14
14
14
14
14
14
14
15
½“
m3/h
USgpm
0,01
0.012
0,02
0.023
0,05
0.06
0,10
0.12
0,20
0.23
0,50
0.58
0,80
0.93
2
2,3
20
¾“
m3/h
USgpm
0,05
0,06
0,10
0.12
0,20
0.23
0,50
0.58
0,80
0.93
2
2,3
25
1“
m3/h
USgpm
2
2,3
0,01
0.012
0,02
0.023
0,05
0.06
0,10
0.12
0,20
0.23
0,50
0.58
0,80
0.93
Nom. size
kv100
Cv
Seat -in mm
mm] [inch]
14
15
20
25
30
40
50
65
80
96
120
15
½“
4
4,7
20
¾“
4
4,7
25
1“
m3/h
USgpm
1,20
1.40
4
4,7
40
1½”
m3/h
USgpm
4
4,7
7
8,2
11
12,8
15
17,5
28
32,6
50
2”
m3/h
USgpm
7
8,2
11
12,8
15
17,5
28
32,6
42
48,9
65
--
m3/h
USgpm
7
8,2
11
12,8
15
17,5
28
32,6
42
48,9
80
3”
m3/h
USgpm
15
17,5
28
32,6
42
48,9
65
75,7
100
117
100
4”
m3/h
USgpm
42
48,9
65
75,7
100
117
155
180
U-Plugs
DN
Seat -in mm [inch]
[mm]
[inch]
80 [3.15]
96 [3.78]
120/4.72
145/5.71
145/5.71
80
3"
90 m3/h
105 USgpm
----
100
4"
90 m3/h
105 USgpm
135 m3/h
157 USgpm
150
6“
240 m3/h
280 USgpm
300 m3/h
350 USgpm
360 m3/h
420 USgpm
Notes:
The next lower kv100/Cv value can also be achieved with special plugs without changing the seat .
This is important if the kv100/Cv value is subsequently changed as only the plug then has to be replaced.
Conversion into Cv (US gpm) = kv100 x 1,165.

Series RSS/F Page 7
9560-060-en Revision 15
TM 9549 Edition 07/2016
1.6 Cavitation coefficient z
Kv / Kv100 = 75%
DN
Seat -in mm
[mm]
[inch]
8
14
15
20
25
30
40
50
65
80
96
120
120
145
15
½“
0,60
0,60
0,60
20
¾“
0,60
0,60
0,60
25
1"
0,60
0,60
0,60
0,60
0,60
40
1½"
0,60
0,60
0,60
0,55
0,50
50
2"
0,60
0,60
0,55
0,50
0,40
65
--
0,60
0,60
0,55
0,50
0,40
80
3"
0,55
0,50
0,45
0,32
0,30
100
4"
0,47
0,33
0,30
0,26
150
6“
0,23
0,20
0,18
1.7 Valve travel
DN
Standard PTFE bellows
Heavy duty PTFE-bellows
Hastelloy bellows
[mm]
[inch]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
15
½“
15
20
15
20
20
¾“
15
20
15
20
25
1"
15
20
15
15
20
40
1½"
15
20
30
15
20
15
20
50
2"
15
20
30
15
20
15
20
65
--
15
20
30
15
20
15
20
80
3"
30
30
30
100
4"
30
30
30
150
6“
--
--
--
50
--
--
--
The valve travel depends on the actuator selected.
v
1
Fpp
p
X


XF= Differential pressure ratio
p = Differential pressure inlet/outlet
p1 = Absolute pressure at inlet
pv= Vapour pressure at operating temperature
XFz : non-critical conditions
XF1,4 x z : tolerable cavitation
XF> 1,4 x z : inadmissible cavitation

Series RSS/F Page 8
9560-060-en Revision 15
TM 9549 Edition 07/2016
1.8 Opening and closing forces required
The values specified in the tables apply to a seat/plug
material of modified PTFE.
With other materials, e.g. PTFE/carbon, higher closing
forces are required. Please inquire at manufacturer's.
If the maximum p is < p2, p2 is used in the tables.
observe the application limits acc. to the pressure-
temperature diagram in Section 1.4.
 A mechanical travel stop is required in the area
marked.
It is provided when
p > 10bar/145 psi to Seat-Ø 15-50 mm
p >6 bar/87 psi to Seat-Ø 65 mm
1.8.1 Standard bellows
Opening forces
The opening forces remain below the closing forces and are therefore not shown.
Closing forces
Seat 
maximum p or p2 in bar
1
2
3
4
5
6
7
8
9
10
mm
N
N
N
N
N
N
N
N
N
N
8
290
310
330
350
370
390
410
430
450
470
14
290
310
330
350
370
390
410
430
450
470
15
330
385
435
490
540
595
645
695
750
800
20
390
460
525
595
665
730
800
865
935
1010
25
450
545
640
735
830
925
1020
1115
1205
1305
30
550
680
805
935
1065
1190
1320
1445
1575
1705
40
680
885
1085
1290
1490
1695
1895
2095
2300
2480
50
830
1130
1425
1720
2020
2315
2610
2910
3205
3500
65
1040
1500
1960
2420
2890
3350
3810
4270
4740
5190
80
1300
1970
2630
3300
3960
4630
5300
5960
6630
7305
96
1600
2520
3440
4370
5290
6210
7130
8050
8980
9900
1.8.2 Heavy-duty bellows
Opening forces
DN
[mm] [inch]
N
25
1"
900
40
1½"
2000
50
2"
2000
65
--
2000
80
3"
800
100
4"
800
150
6“
2400

Series RSS/F Page 9
9560-060-en Revision 15
TM 9549 Edition 07/2016
Closing forces
Seat 
maximum p or p2 in bar
1
2
3
4
5
6
7
8
9
mm
N
N
N
N
N
N
N
N
N
8
290
310
330
350
370
390
410
430
450
14
330
385
435
490
540
595
645
695
750
15
330
385
435
490
540
595
645
695
750
20
390
460
525
595
665
730
800
865
935
25
450
545
640
735
830
925
1020
1115
1205
30
550
680
805
935
1065
1190
1320
1445
1575
40
680
885
1085
1290
1490
1695
1895
2095
2300
50
830
1130
1425
1720
2020
2315
2610
2910
3205
65
1040
1500
1960
2420
2890
3350
3810
4270
4740
80
1300
1970
2630
3300
3960
4630
5300
5960
6630
96
1600
2520
3440
4370
5290
6210
7130
8050
8980
120
2375
3710
5022
6379
7691
9025
10371
11672
13029
145
3468
5416
7332
9313
11229
13177
15142
17041
19023
Seat 
maximum p or p2 in bar
10
11
12
13
14
15
16
mm
N
N
N
N
N
N
N
8
470
495
510
525
540
555
570
14
800
865
900
935
970
1005
1040
15
800
865
900
935
970
1005
1040
20
1010
1145
1195
1250
1300
1355
1410
25
1305
1475
1550
1625
1705
1780
1855
30
1705
1890
1990
2095
2195
2295
2400
40
2480
2750
2915
3080
3250
3415
3570
50
3500
3790
4035
4280
4525
4770
5020
65
5190
5675
6070
6465
6860
7255
7650
80
7305
7945
8525
9105
9685
10265
10850
96
9900
10790
11610
12425
13240
14060
14880
120
14363
15675
16829
18084
19317
20527
21715
145
20972
22887
24571
26404
28204
29971
31705

Series RSS/F Page 10
9560-060-en Revision 15
TM 9549 Edition 07/2016
2 Notes on safety
This operating manual contains fundamental information
which is to be observed during installation, operation and
maintenance.
It must be read before installation and
commissioning!
For valves which are used in potentially explosive areas,
see Section 3.
Installation and operation are to be performed by
qualified staff.
The area of responsibility, authority and supervision of the
staff must be regulated by the customer.
General hazard symbol!
People may be put at risk.
Safety symbol! The ball valve and its function
may be put at risk if this safety symbol is not
observed.
It is imperative to observe warnings and signs attached
directly to the ball valve and they are to be kept fully
legible.
Non-observance of the notes on safety may result in the
loss of any and all claims for damages.
For example, non-observance may involve the following
hazards as:
 Failure of important functions of the valve/plant.
 Risk to people from electric, mechanical and chemical
effects.
 Risk to the environment through leaks of hazardous
substances.
2.1 Intended use
Richter bellows-sealed globe control valves of the series
RSS/F are pressure containing components in accordance
with the Pressure Equipment Directive (PED) for the
passage and shut-off of fluids. The valves are suitable for
vapours, gases and non-boiling liquids of group 1
according to the PED and have a corrosion-resistant
plastic lining.
Sie werden zur Regelung von korrosiven, reinen und
hochreinen Flüssigkeiten, Gasen und Dämpfen in Chemie-,
Pharma-, Lebensmittel- und industriellen Prozessen
eingesetzt.
Solids can lead to increased wear, damage to sealing
surfaces or to a reduction in the service life of the valve.
The operator must carefully examine in the event of
operating data other than those provided whether the
designs of the valve, accessories and materials are
suitable for the new application (consult the
manufacturer).
2.2 For the customer / operator
When using the valve, it must be ensured that
 actuators which are retrofitted are adapted and
designed to suit the valve
 hot or cold valve parts are protected by the customer
against being touched
 the valve has been properly installed in the pipe
system
 the usual flow rates are not exceeded in continuous
operation.
This is not the manufacturer's responsibility.
Loads caused by earthquakes were not allowed for in the
design.
Fire protection to DIN EN ISO 10497 is not possible (plastic
lining and plastic components).
2.3 Improper operation
The operational reliability of the valve supplied is only
guaranteed if it is used properly in accordance with
Section 2.1 of this operating manual.
The operation limits specified on the identifica-
tion plate and in the pressure-temperature
diagram must under no circumstances be
exceeded.

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3 Safety notes for applications in potentially explosive areas based on
the Directive 2014/34/EU (Atex)
The valves are intended for use in a potentially explosive
area and are therefore subject to the conformity
assessment procedure of the directive 2014/34/EU
(ATEX).
As part of this conformity assessment, an ignition hazard
analysis to EN 13463-1 to satisfy the fundamental safety
and health requirements was conducted with the
following result:
 The valves do not have any ignition source of their
own and can be operated both manually as well as
mechanically/electrically.
 The valves are not covered by the scope of applica-
tion of the ATEX directive and therefore do not need
to be identified accordingly.
 The valves may be used in a potentially explosive
area.
Supplementary notes:
 Electric/mechanical actuators must be subjected to
their own conformity assessment to ATEX.
It is imperative to observe the individual points of
intended use for application in a potentially explosive
area.
3.1 Intended use
Improper operation, even for brief periods, may result in
serious damage to the unit.
In connection with explosion protection, potential
sources of ignition (overheating, electrostatic and
induced charges, mechanical and electric sparks) may
result from these improper operation; their occurrence
can only be prevented by adhering to the intended use.
Furthermore, reference is made in this connection to the
Directive 95/C332/06 (ATEX 118a) which contains the
minimum regulations for improving the occupational
health and safety of the workers who may be at risk from
an explosive atmosphere.
A difference is made between two cases for the use of
chargeable liquids (conductivity < 10-8 S/m):
1. Chargeable liquid and non-conductive lining
Charges can occur on the lining surface. As a result,
this can produce discharges inside the valve. However,
these discharges cannot cause ignitions if the valve is
completely filled with medium.
If the valve is not completely filled with medium, e.g.
during evacuation and filling, the formation of an
explosive atmosphere must be prevented, e.g. by
superimposing a layer of nitrogen.
It is recommended to wait 1 hour before removing the
valve from the plant in order to permit the elimination
of static peak charges.
This means that, to safely prevent ignitions, the valve
must be completely filled with medium at all times or
else a potentially explosive atmosphere must be
excluded by superimposing a layer of inert gas.
2. Chargeable liquid and conductive lining
No hazardous charges can occur as charges are dis-
charged direct via the lining and shell (surface re-
sistance 109Ohm, leakage resistance 106Ohm).
The following special feature applies to the series with
bellows (RSS, HV, HVR, BAV/BAVM, KSE, KSEA, GU,
GUT, PA/PAP):
The bellows are not offered in a conductive version,
i.e. the restrictions under point 1. apply.
Richter optionally offers conductive metallic bellows
for the series HV/HVR and RSS.
Static discharges of non-conductive linings are only
produced through the interaction with a non-
conductive medium and are therefore the
responsibility of the plant operator.
Static discharges are not sources of ignition which
stem from the valves themselves!
 The temperature of the medium must not exceed the
temperature of the corresponding temperature class
or the maximum admissible medium temperature as
per the operating manual.
 If the valve is heated (e.g. heating jacket), it must be
ensured that the temperature classes prescribed in the
Annex are observed.
 To achieve safe and reliable operation, it must be
ensured in inspections at regular intervals that the unit
is properly serviced and kept in technically perfect
order.
 Increased wear to the valve can be expected with the
conveyance of liquids containing abrasive constituents.
The inspection intervals should be reduced compared
with the usual times.
 Actuators and electric peripherals, such as tempera-
ture, pressure and flow sensors etc., must comply with
the valid safety requirements and explosion protection
provisions.
 The valve must be grounded.
This can be achieved in the simplest way via the pipe
screws using tooth lock washers.
Otherwise grounding must be ensured by other action,
e.g. cable bridges.
 Attachments such as actuators, position controllers,
limit switches etc. must satisfy the relevant safety
regulations as regards explosion protection and, if
required, be designed in compliance with Atex.

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 Special attention must be paid to the appropriate
safety and explosion protection notes in the respective
operating manuals.
 Plastic-lined valves must not be operated with carbon
disulphide
4 Safety note for valves, certified to Clean Air Act (TA-Luft)
Certificate / Manufacturer Declaration Validity is
dependent on the operating instructions being read and
observed.
 Perform maintenance at regular intervals and check
the screw connections relevant to leak-tightness and,
if necessary, retighten them.
5 Transport, storage and disposal
It is imperative, for all transport work, to
observe generally accepted engineering practice
and the accident prevention regulations.
The valve is supplied with flange caps. Do not
remove them until just before installation. They
protect the plastic surfaces against dirt and
mechanical damage.
Handle the goods being transported with care. During
transport the valve must be protected against impacts and
collisions.
Directly after receipt of the goods, the consignment must
be checked for completeness and any in-transit damage.
Do not damage paint protection.
5.1 Storage
If the valve is not installed immediately after delivery, it
must be put into proper storage.
It should be stored in a dry, vibration-free and well-
ventilated room at as constant a temperature as possible.
Elastomers are to be protected against UV light.
In general, a storage period of 10 years should not be
exceeded.
5.2 Return consignments
Valves which have conveyed aggressive or toxic
media must be well rinsed and cleaned before
being returned to the manufacturer's works.
It is imperative to enclose a safety information
sheet / general safety certificate on the field of
application with the return consignment.
Pre-printed forms are enclosed with the installation and
operating manual.
Safety precautions and decontamination measures are to
be mentioned.
5.3 Disposal
Parts of the valve may be contaminated with medium
which is detrimental to health and the environment and
therefore cleaning is not sufficient.
Risk of personal injury or damage to the
environment due to the medium!
 Wear protective clothing when work is performed on
the valve.
 Prior to the disposal of the valve:
Collect any medium, etc. which has escaped and
dispose of it in accordance with the local regula-
tions.
 Neutralise any medium residues in the valve.
 Separate valve materials (plastics, metals, etc.) and
dispose of them in accordance with the local regula-
tions.

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6 Installation
 Examine valve for in-transit damage, damaged
bellows-sealed globe control valves must not be
installed.
 Before installation the valve and the connecting pipe
must be carefully cleaned to remove any dirt, especial-
ly hard foreign matter.
 During installation, pay attention to the correct
tightening torque, aligned pipes and tension-free
assembly.
 The all-round gap between the body and the cover
must remain constant so that a centric position of the
plug in relation to the seat is guaranteed.
 Operation during maintenance work can be continued
with a bypass around the globe control valve.
Ensure that a remotely actuated actuator
cannot be accidentally switched on.
 Depending on the kv-value, the free cross section in
the valve may be much smaller than the cross section
of the nominal size. To prevent clogging, the pipe must
be carefully cleaned upstream of the valve.
6.1 Flange caps and gaskets
 Leave protective caps on the flanges until just prior to
installation.
If plastic sealing surfaces can be damaged, e.g. with
mating flanges made of metal or enamel, use PTFE-lined
seals with a metal inlay.
These are available as special accessories from the Richter
product range.
6.2 Direction of flow and
installation position
Normally the valve is installed in a horizontal pipe with the
actuator on top. The valve can also be installed with the
actuator underneath.
However, this is only admissible if there is no risk of
contamination to the bellows, e.g. from the sedimentation
of solids.
Inclined positions of the actuator are only admissible after
consultation with the manufacturer. In this case a support
structure may have to be provided for the actuator.
The direction of flow is from below against the plug. An
arrow on the body indicates the direction of flow.
6.3 Grounding
The valve must be grounded. The simplest solution is to
use tooth lock washers which are placed under one pipe
bolt of each flange.
At the customer's request a setscrew M6 with a hex. nut
and washer will be provided at each flange as an
additional grounding connection.
Otherwise grounding must be ensured by different
measures e.g. a cable link.
6.4 Test pressure
The test pressure PT of an open valve must not exceed the
value of 1.5 x PN/PS as per the identification of the valve.
6.5 Monitoring connection
If the cover flange has a screw-in fitting for an
alarm connection, the latter must also be
connected or the screw-in fitting has to be
sealed. Otherwise, medium could escape if the bellows
became defective.
In order to ensure leak monitoring, Richter recommends
the combination of the safety stuffing box with a warning
connection.

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7 Operation
7.1 Initial commissioning
Normally, the valves have been tested for leaks with air or
water. Prior to initial operation check cover screws. For
torques see Section 1.3.
Unless otherwise agreed, there could be
residual amounts of water in the flow section of
the valve; this could result in a possible reaction
with the medium.
To prevent leaks, all connection screws should be
retightened after the initial loading of the valve with
operating pressure and operating temperature. For
torques, see Section 1.3.
7.2 Improper operation and their
consequences
 Crystallisation must be prevented, e.g. by heating.
In extreme cases this may cause blocking.
 Operation with solids leads to increased wear.
 Operating during cavitation leads to increased wear.
 Non-observance of the pressure-temperature diagram
can lead to damage.
 If no monitoring is provided by the warning connec-
tion, do not tighten safety stuffing box. Otherwise any
leak cannot be seen.
 The valve is not to be operated in the wrong direction
of flow. Otherwise, it may close unintentionally with
an actuator of normal dimensions.
7.3 Shutdown
The local regulations are to be observed when dismantling
the valve.
Make sure that a remote-controlled actuator
cannot be switched on by accident.
In the case of a diaphragm actuator make sure that there
is no more compressed air in the actuator; the springs
must be in the unstressed state.
Before undoing the pipe or cover flange bolts, ensure that
the plant is depressurised on both sides of the valve.
Prior to the start of maintenance work, the
valve must be thoroughly cleaned. Medium
residue may be in the valve even if it has been
properly drained and flushed. Drain the valve on both
sides.
After dismantling, immediately protect the valve flanges
against mechanical damage by using flange caps. See also
Section 6.1.

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8 Malfunctions
 Flange connection valve/pipe is leaking
Retighten the flange screws to a tightening torque
according to Section 1.3. If this does not remedy the
leak, the recommended torques may be exceeded by
10%.
If this also fails to stop the leak, dismantle and inspect
the valve.
 Flange connection main body/cover is leaking
Retighten the cover screws to a tightening torque
according to Section 1.3. If this does not remedy the
leak, the recommended torques may be exceeded by
10%.
If this also fails to stop the leak, dismantle and inspect
the valve.
 Safety stuffing box is leaking
First of all, the packing gland follower can be tight-
ened.
Then dismount the valve as quickly as possible and
repair.
Replace bellows.
Replace plug and/or seat.
Replace packing rings.
 Monitoring connection reports a rise in pressure or a
leak
Replace bellows.
Replace plug and/or seat.
Replace packing rings.
 Valve does not switch
Is the actuator supplied with power?
Is any directional globe control valve correctly con-
nected?
Is there any foreign matter in the globe control valve?
Is the stuffing box tightened too much?
 Valve does not close tight
Check distance of the travel stop.
Are there any solids between seat and plug?
Are the sealing surfaces of the seat or plug damaged?
Is the actuator too small?
Is the air pressure high enough?
Is the positioner set correctly?
 Valve does not open completely
Is the air pressure high enough?
Is the positioner set correctly?
Does the actuator permit enough travel?
Does the valve permit enough travel?
 The flow rate is too high or too low.
 The performance curve is not correct.
 The valve cavitates.
Do the rated data according to the data sheet or works
certificate match the data of the plant?
Are the correct seat and plug installed? See markings
on the seat and plug and compare them with the
name plate and the data sheet.

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9 Maintenance
 All repair work is to be performed by qualified
personnel using the appropriate tools.
 For the arrangement, designation and item numbers
of all parts of the valve, see Section 10.
 Spare parts are to be ordered with all the details in
acc. with the valve identification.
 Only original spare parts may be installed.
 The maintenance staff can decide whether the valve is
dismantled from the pipe or not for maintenance
work. In both cases Section 7.3 is to be observed.
 It is also up to the maintenance staff to decide
whether the actuator or other accessories are disman-
tled for the maintenance work.
 Section 9.4is to be observed for re-assembly of the
actuator.
 To prevent leaks, a regular check of the connection
screws should be made in line with the operating
requirements.
For torques see Section 1.3.
9.1 Setting the travel stop
Fig. 1
To ensure the valve closes tight, a distance between the
travel stop 508 and cover 106 must be observed:
DN 15 –50 (½“.–2“) : 0,5 mm
DN 65 –150 (2½“ –6“) : 1,0 mm
If these distances are not correct, the travel stop must be
reset:
 Close valve.
 Remove protection bellows 687.
 Move travel stop 508 to the correct distance.
 Tighten lock nut 920/2.
9.2 Dismantling
9.2.1 Maintenance of the upper section
This mainly involves the following work:
 Replacing the plug 204.
 Replacing the bellows 206.
 Inspecting the metal parts of the upper section and
replacing them if necessary.
The entire dismantling and assembly procedure is
described below. If only partial assembly is required, this
can be derived from the text.
9.2.2 Dismantle valve
 Move plug 204 into open position if the actuator 850
is mounted.
 Remove cover nuts and screws 901/1, 1x936/1,
1x936/2 and 920/2 (DN 100 902/2, 1x936/1,
1x936/2, 920/2 and 920/3).
 Pull cover 106 vertically out of the body 100.
 Remove protective bellows 687, travel stop 508 and
packing nut 404.
 Remove valve stem 800 with bellows 206 and plug
204 below.
 Clamp valve stem 800 in a vice with protective jaws.
 Pull round cord 522 out of the plug 204 with a pair of
pliers.
 Unscrew plug 204 by hand or with a strap wrench.
Right-hand thread.
 Unscrew bellows 206 by hand or with a strap
wrench. Right-hand thread.
 With the heavy-duty bellows 206 the support rings
231 and support disc 232 cannot be removed.
9.2.3 Replace bellows
 Only remove packing rings 402/1 and thrust ring 405
if necessary.
 Only remove guide rings 302 if necessary. Use a
sharp tool, e.g. scribing iron or screwdriver.
 With DN 80 and DN 100 (3“ and 4“):
only remove guide 801 if necessary. Press in the
direction of the stuffing box using a press.
Check to see whether the seat 205 is still ok.
If not: replace. See Section 9.3.

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9.2.4 Assembly
DN 15 - DN 65 (½“.–2½“)
 Insert guide rings 302/1, 302/2.
 Clamp valve stem 800 in a vice with protective jaws.
 Screw bellows 206 without lubricant onto the valve
stem 800 and tighten by hand.
 Check to see whether the new plug 204 fits in the
valve seat 205. Make sure that neither the seat nor
the plug is damaged.
 Screw plug 204 with plug onto the bellows 206
without lubricant and tighten by hand.
 Press round cord 522
into the plug 204 leaving
about 10 mm over. This
facilitates the next
dismantling opera-
tion.
Fig. 2
 Install valve stem 800 with bellows 206 and plug 204
without lubricant into the cover 106.
 Insert packing rings 402/1 offset by 90° and thrust
ring 405 into the cover and tighten with packing nut
404. For tightening torques, see Section 1.3.
 Screw travel stop 508 and lock nut 920/2 onto the
valve stem 800.
 Carefully lower upper section into the body.
 Install cover 106. Tightening torques see Section
1.3.
 If the bracket 510 or yoke 516 was dismantled, install
it again. Tighten groove nut 509/1.
 Mount the protective bellows 687 with inserted snap
rings 954/1 onto the valve stem 800.
 Mount clip 937/1 onto the valve stem 800.
 If the actuator 850 was removed, mount it again now.
 Set valve and mount coupling 804.
See Section 9.4.
 Set travel stop 508. See Section 9.1.
 Attach protective bellows 687 with clip 937/1.
 Connect monitoring connection again.
DN 80 und DN 150 (3“ und 6“)
 Press guide 801 into the cover 106 without lubricant.
 Now continue as described under assembly DN 15 -
DN 65 (½“.–2½“).
9.3 Replacing seat
The seat is marked with:
Fig. 3
The plug is marked with:
Fig. 4
A screw-in tool is required for assembling and disman-
tling the seat 205. The article numbers for the individual
nominal sizes are listed in Section 1.2.
The new seat is to be carefully protected prior to
assembly. The sealing edge and the sealing surface for
the plug must not be damaged.
Fig. 5
 Remove the upper section as described in Section
9.2.
 Using the Richter screw-in tool, turn the seat 205 out
of the body. Right-hand thread.
 Carefully clean the sealing surface in the body 100
and check for
 If there is any damage, you can try to rework the
sealing surface.

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 Screw the new seat 205 into the body 100 without
lubricant using the Richter screw-in tool. For tighten-
ing torques, see Section 1.3.
 Further assembly as described in Section 9.2.
9.3.1 V-plug
In contrast to the normal valve plug, the seat diameter is
smaller than the V-plug diameter.
The V-plug is pushed firmly over the resilient sealing lip of
the valve seat. This seals the plug.
9.4 Mounting the actuator
 Assembly of the actuator varied depending on the
make and type.
 The operating manuals for actuators, positioners and
other accessories must be observed.
As regards the process valve, special attention is to be
paid to the following:
 The stem 800 must under no circumstances by
turned to adapt to the coupling 804. If turned coun-
terclockwise, it would otherwise turn out of the
metal core of the bellows 206.
 The actuator manufacturers prescribe that the valve
is moved into the closed position when the coupling
804 is mounted. In this closed position many bellows
are pre-tensioned in the valve. They would possibly
open the valve again. Therefore, the stem 800 is to
be kept in the closed position when the coupling 804
is mounted.
The safety function, i.e. opening or closing of
the valve if the air or power fails, must be
checked.
10 Drawings
10.1 Legend
100 body
106 cover
204 plug
205 seat
206 bellows
206 heavy-duty bellows
includes:
231 support ring
232 support disc
302/x guide ring
402/1 packing ring
404 packing nut
405 thrust ring
508 travel stop
510 bracket
516 yoke
522 round cord
523 stroke index
550 disc
687 protective bellows
includes:
509/1 groove nut
937/1 clip
954/1 snap ring
800 valve stem
801 guide
(DN 80-150, 3"-6")
804 coupling
850 actuator
901/1 hex. screw
(DN 15 to 80, ½" to 3" )
902/1 stud screw
(DN 100, 150, 4", 6”)
917/1 screw-in pipe connector
920/x hex. nut
936/x tooth lock washer
938/1 hex. head screw plug

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10.2 RSS/F Sectional drawing (with standard UVV-bellows)
*depending on actuation
version with
bracket
version with
yoke

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10.3 Details, options and dimensions
Detail "X" Travel Stop
Detail "Z" (DN 80-150, 3"-6")
For all bellows
Detail "Y" (DN 100, 4")
Option heavy-duty bellows
Option monitoring connection
* If requested with 938/1
V-control plug for small Cv values