Richter NKL-C 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
9520-022-en Revision 16 Edition 05/2022
Series NKS-C, NKSP-C, NKL-C, NKLP-C
Richter Shut-off and
Control Butterfly Valve
Lug-style body: Series NKL-C
Wafer-style body: Series NKS-C

9520-022-en Revision 16
TM 10477 Edition 05/2022
List of Contents
List of Contents .................................................... 2
Relevant documents............................................. 2
1Technical data ................................................ 3
1.1 Overview of sizes ............................................4
1.2 Type codes .........................................................4
1.3 Name plate, CE and body markings ...................5
1.4 Tightening torques ............................................. 6
1.5 Dimensions - Installation....................................8
1.6 Flow rate value kv [m³/h]..................................8
1.6.1 Disc/stem unit PFA-lined.........................................8
1.6.2 Disc/stem unit stainless steel, Hastelloy, Titan........9
1.7 Weights (ca. kg).................................................9
1.8 Breakaway torques ..........................................10
1.9 Cavitation coefficient z for 75% duty ...............10
1.10 Pressure-temperature-diagram .......................10
2Notes on safety............................................. 11
2.1 Intended use ....................................................11
2.2 For the customer / operator ............................ 11
2.3 Improper operation.......................................... 11
3Safety notes for applications in potentially
explosive areas based on the Directive
2014/34/EU (ATEX)....................................... 12
3.1 Intended use ....................................................12
4Safety note for valves, certified to Clean Air Act
(TA-Luft)....................................................... 14
5Transport, storage and disposal .................... 14
5.1 Storage .............................................................14
5.2 Transport preparations ....................................14
5.3 Return consignments .......................................14
5.4 Transport securing device................................14
5.5 Disposal ............................................................ 15
6Installation ................................................... 15
6.1 Installation possibilities.................................... 15
6.2 Flange caps and gaskets................................... 15
6.3 Direction of flow and installation position......15
6.4 Installation........................................................ 15
6.4.1 Additional advice for shut-off and control butterfly
valve with actuator................................................15
6.5 Earthing............................................................15
7Operation..................................................... 16
7.1 Initial commissioning........................................16
7.2 Improper operation and their consequences ..16
7.3 Shutdown .........................................................16
7.3.1 Additional advice for shut-off and control butterfly
valve with actuator................................................16
8Malfunctions ................................................ 17
9Maintenance ................................................ 17
9.1 Notes for assembly...........................................17
9.2 Valve actuation.................................................18
9.2.1 Actuated with lever...............................................18
9.2.2 Actuated by means of worm gear .........................18
9.2.3 Remotely actuated................................................18
9.2.4 Required breakaway torque..................................18
9.3 Tests .................................................................18
10 Drawings ...................................................... 19
10.1 Legend..............................................................19
10.2 Sectional drawing NKS-C .................................19
10.3 Sectional drawing NKL-C ..................................20
10.4 Worm gear .......................................................20
10.5 Actuator............................................................21
10.6 Connection actuator.........................................21
10.7 Dimensional drawing NKS-C with hand lever .22
10.8 Dimensional drawing NKS-C with worm gear ..23
10.9 Dimensional drawing NKSP-C...........................24
10.10 Dimensional drawing NKL-C with hand lever26
10.11 Dimensional drawing NKL-C with worm gear..
......................................................................27
10.12 Dimensional drawing NKLP-C ......................28
Relevant documents
EG-Declaration of conformity
Manufacturer Declaration ATEX Directive
2014/34/EU
Certification of leakage rate
Form for Safety Information Concerning the Con-
tamination QM 0912-16-2001_en
For NKLP-C or NKSP-C, operating manual for actu-
ator

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 3
9520-072-en Revision 15
TM 9549 Edition 08/2016
1 Technical data
Manufacturer:
Richter Chemie-Technik GmbH
Otto-Schott-Str. 2
D-47906 Kempen
Telephone: [phone]
Fax: [phone]
E-Mail : [email protected]m
Internet: http://www.richter-ct.com
Designation:
Shut-off and control butterfly valve with lug-style and
wafer-style
Disc/stem unit plastic-lined, stainless steel, Hastelloy
or Titanium
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
Flange connecting dimensions:
DIN EN 1092-2, shape B, (ISO 7005-2 type B) PN 10
or ASME B16.5 class 150 (50“-24“) and ASME B16.47
Class 150 (28”-42”)
Face to face:
DIN EN 558-1, basic series 20 (ISO 5752 series 20)
Dimensions and individual parts:
See Section 10
Materials:
Body material: Ductile cast iron EN-JS 1049 to DIN
EN 1563 (0.7043 DIN 1693)
Lining material: PTFE
.../F
PTFE modified .../F
PTFE modified antistatic …/F–L
Disc/stem unit:
PFA-lined ..–F
PFA-lined antistatic ..–L
Stainless steel 1.4404, 1.4470 ..–S
Hastelloy C22 ..–H
Titanium Grade 2 ..–T
Temperature range: -20 °C to +200 °C
(-4 °F to +400 °F)
accord. to operating pressure
See pressure-temperature diagram in Section 1.10.
Operating pressure:
10 bar (145 psig) DN 50-600)
6 bar (85 psig) DN 700-1000
accord. to operating pressure
Options:
Polished disc surfaces
Weights: See table in Section 1.7
Dimensions and single components:
See dimensional drawings in Section 10

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 4
9520-022-en Revision 16
TM 10477 Edition 05/2022
1.1 Overview of sizes
Series
Actuation
/F
/F-L
/F-S
/F-H
/F-T
/F-L-S
/F-L-H
/F-L-T
Body design
NKS-C
Lever
DN 65, 125
2½", 5"
DN 65, 125
2½", 5"
DN 50-200
2"-8"
DN 50-200
2"-8"
Gear
DN 65, 125,
350-400
2½", 5", 14"-
16"
DN 50-300
2"-12"
DN 50-300
2"-12"
NKSP-C
Actuator
connection to ISO
5211
NKL-C
Lever
DN 65, 125
2½", 5"
DN 65, 125
2½", 5"
DN 50-200
2"-8"
DN 50-200
2"-8"
Gear
DN 65, 125,
450-1050
2½", 5", 18"-42"
DN 65, 125,
350-600
2½", 5", 14"-
24"
DN 50-1000
2"-40"
DN 50-600
2"-24"
NKLP-C
Actuator
connection to ISO
5211
1.2 Type codes
Series Code
NKS-C/F wafer-style body NKS-C
NKL-C/F lug-style body NKL-C
Body lining Code
PTFE F 
PTFE modified T 
PTFE modified antistatic TL 
PTFE modified antistatic FDA TF 
UHMW-PE E 
Material disc/stem unit Code
PFA lined F 
PFA lined, antistatic L 
Stainless steel 1.4404, 1.4470 S 
Polished disc surfaces Hastelloy C22 H 
Polished disc surfaces Titanium Grad 2 T 
Polished disc surfaces Stainless Steel ST 
Indicate valve size
DN 50, 80, 100, 125 ……2)
Flange connection Code
ISO 7005-2 PN 10 tapped hole NKL-C 1a 
Through hole ISO NKL-C 1 
ASME B16.5 or B.16.47 CL150
Tapped hole. NKL-C 2b 
Through hole ASME NKL-C 2 
JIS R 2210-10K NKL-C 4 
No tapped or through holes NKS-C _ 
NKS-C from DN 350 is NKL-C
with through holes ISO NKS-C1 
with through holes ASME NKS-C2 
Body material Code
Ductile cast iron EN-JS 1049 G 
Stainless steel S 
C-steel C 
CF-GF- compound Vinylester V 
(DN 50-300)
Flexible inlay Code
Silicon S 
FKM (Viton or equal) V 
FDA-FKM F 
Actuation Code
Lever lockable H 
Worm gear, with hand wheel S 1)
Without actuation O 
Data on name plate Code
°C/bar C 
°F/psi F 
Standard
1) Standard up to DN 250
Option
2) In the certificates and „Order-related Specification“ the
sizes are spezified in DN (mm).

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 5
9520-022-en Revision 16
TM 10477 Edition 05/2022
Order example NKS-CTLL80−GSHC
Order example
NKS-C
TL
L
80
−
G
S
H
C
Series
NKSP-C
Body lining
TL
Disc/stem unit
L
Valve size
80
Flange connection
−
Body material
G
Flexible inlay
S
Actuation
H
Type plate
C
1.3 Name plate, CE and body markings
The stainless steel name plate is undetachably rivet-
ed 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:
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
Sign for transport securing device for actuator

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 6
9520-022-en Revision 16
TM 10477 Edition 05/2022
1.4 Tightening torques
All screws greased, tighten in diametrically opposite
sequence!
After the plant has been started up (especially with
the first temperature load) the tightening torques
must be checked and the correct value set again.
The tightening torques for pipe screws and body
screws mentioned must not be exceeded. For an ex-
ception, see Section 8, flange connection valve/pipe
is leaking.
The following tightening torques are recommended:
Pipe screws, flanges to ISO/DIN
Standard threaded hole
Flange nom.
size
Screws
Tightening torque
[mm]
[ISO/DIN]
[Nm]
50
4 x M16
35
65
8 x M16
40
80
8 x M16
45
100
8 x M16
50
125
8 x M16
60
150
8 x M20
70
200
8 x M20
85
250
12 x M20
95
300
12 x M20
105
350
16 x M20
145
400
16 x M24
165
450
20 x M24
185
500
20 x M24
215
600
16 x M27
230
700
24 x M27
280
750
---
---
800
24 x M30
380
900
28 x M30
460
1000
28 x M33
460
1050
---
---
Pipe screws flanges ISO/DIN drilled to ASME Class
150 Standard threaded hole
Flange nom.
size
Screws
Tightening
torque
[mm]
[inch]
[ASME]
[Nm]
[in-lbs]
50
2“
4 x ⅝“-11UNC
35
310
65
2½“
4 x ⅝“-11UNC
40
354
80
3“
4 x ⅝“-11UNC
45
398
100
4“
8 x ⅝“-11UNC
50
442
125
5"
8 x ¾“-10UNC
60
532
150
6“
8 x ¾“-10UNC
70
620
200
8“
8 x ¾“-10UNC
85
753
250
10“
12 x ⅞“-9UNC
95
842
300
12“
12 x ⅞“-9UNC
105
931
350
14“
12 x 1“-8UNC
145
1285
400
16“
16 x 1“-8UNC
165
1463
450
18"
16 x 1⅛“-7UNC
185
1640
500
20"
20 x 1⅛“-7UNC
215
1906
600
24"
20 x 1¼“-7UNC
230
2039
700
28"
28 x 1¼“-7UNC
280
2482
---
30"
28 x 1¼“-7UNC
300
2660
800
32"
28 x 1½“-7UNC
380
3369
900
36"
32 x 1½“-6UNC
460
4078
1000
40"
36 x 1½“-6UNC
460
4078
1050
42"
36 x 1½“-6UNC
500
4433
Pipe screws, flanges to ISO/DIN, through hole
NKS-C+NKSP-C from size DN 350 (14") upwards with
lug-style body and through hole
Flange nom.
size
Screws
Tightening
torque
[mm]
[ISO/DIN]
[Nm]
50
4 x 18
35
65
8 x 18
40
80
8 x 18
45
100
8 x 18
50
125
8 x 18
60
150
8 x 22
70
200
8 x 22
85
250
12 x 22
95
300
12 x 22
105
350
16 x 22
145
400
16 x 26
165
450
20 x 26
185
500
20 x 26
215
600
20 x 30
230
700
24 x 30
280
750
---
---
800
24 x 33
380
900
28 x 33
460
1000
36 x 42
500
1050
---
---

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 7
9520-022-en Revision 16
TM 10477 Edition 05/2022
Pipe screws flanges ISO/DIN drilled to ASME Class
150, through hole
NKS-C+NKSP-C from size DN 350 (14") upwards with
lug-style body and through hole
Flange nom.
size
Through hole
Tightening tor-
que
[mm]
[inch]
[mm]
[Nm]
[in-lbs]
50
2“
4 x 19
35
310
65
2½“
4 x 19
40
354
80
3“
4 x 19
45
398
100
4“
8 x 19
50
442
125
5"
8 x 22
60
532
150
6“
8 x 22
70
620
200
8“
8 x 22
85
753
250
10“
12 x 26
95
842
300
12“
12 x 26
105
931
350
14“
12 x 29
145
1285
400
16“
16 x 29
165
1463
450
18"
16 x 32
185
1640
500
20"
20 x 32
215
1906
600
24"
20 x 35
230
2039
700
28"
28 x 35
280
2482
---
30"
28 x 35
300
2660
800
32"
28 x 42
380
3369
900
36"
32 x 42
460
4078
1000
40"
36 x 42
460
4078
1050
42"
36 x 42
500
4433
Body screws
Available screw sizes for butterfly valves with ductile
iron, carbon steel & stainless steel bodies
DN
body
style
bolt size
ISO4762
quantity
steel 8.8
stainless
steel
A4-70
tightening
torque
[Nm]
tightening
torque
[lb×in]
40
wafer
M8 x 40
2
√
√
11,3
100
40
lug
M8 x 40
2
√
√
11,3
100
50
wafer
M8 x 25
2
√
√
11,3
100
50
lug
M8 x 25
2
√
√
11,3
100
65
wafer
M8 x 20
2
√
√
11,3
100
65
lug
M8 x 35
2
√
√
11,3
100
80
wafer
M8 x 20
2
√
√
11,3
100
80
lug
M8 x 35
2
√
√
11,3
100
100
wafer
M10 x 25
2
√
√
22,9
203
100
lug
M10 x 40
2
√
√
22,9
203
125
wafer
M10 x 35
2
√
√
22,9
203
125
lug
M10 x 40
2
√
√
22,9
203
150
wafer
M10 x 40
2
√
√
22,9
203
150
lug
M10 x 45
2
√
√
22,9
203
200
wafer
M12 x 30
2
√
√
39
345
200
lug
M12 x 50
2
√
√
39
345
250
wafer
M16 x 40
2
√
√
96
850
250
lug
M16 x 60
2
√
√
96
850
300
wafer
M16 x 45
2
√
√
96
850
300
lug
M16 x 60
2
√
√
96
850
350
wafer
& lug
M16 x 60
4
√
√
96
850
400
wafer
& lug
M16 x 60
4
√
√
96
850
450
wafer
& lug
M16 x 60
4
√
√
96
850
500
wafer
& lug
M16 x 60
4
√
√
96
850
600
wafer
& lug
M16 x 70
6
√
√
96
850
700
wafer
& lug
M16 x 80
8
√
√
96
850
750
wafer
& lug
M16 x 80
8
√
√
96
850
800
wafer
& lug
M16 x 90
8
√
√
96
850
900
wafer
& lug
M20 x 90
6
√
√
187
1655
1000
&1050
wafer
& lug
M20 x 90
6
√
√
187
1655

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 8
9520-022-en Revision 16
TM 10477 Edition 05/2022
1.5 Dimensions - Installation
Nom. size
E1
T1
L2
Connection3
[mm]
[inch]
[mm]
[mm]
[mm]
50
2“
31
6
43
F07
65
2½“
48
11
46
F07
80
3“
63
17
46
F07
100
4“
90
27
52
F07
125
5"
118
38
56
F07
150
6“
137
47
56
F07
200
8“
189
71
60
F10
250
10“
239
92
68
F10
300
12“
290
112
78
F10
350
14“
328
125
92
F12
400
16“
377
146
102
F12
450
18"
417
164
114
F14
500
20"
477
184
217
F14
600
24"
560
215
154
F16
700
28"
665
264
154
F16
750
30"
716
289
154
F25
800
32"
767
314
154
F25
900
36"
860
360
154
F25
1000
40"
970
414
154
F25
1050
42"
1010
433
154
F25
1 See also Section 6.4, paragraph 1
2 Face to face to DIN EN 558-1, series 20 (ISO 5752, series 20) without DN 350
3 Connections for worm gears and brackets as per DIN ISO 5211
The inside diameter of the mounted pipe flanges must always be greater than the
dimension E in the table!
For more dimensions, see drawings in Section 10.
1.6 Flow rate value kv [m³/h]
1.6.1 Disc/stem unit PFA-lined
Nom. Size
[mm] [inch]
Angle of opening
20°
30°
40°
50°
60°
70°
80°
90°
65
2½“
4
14
27
49
80
118
158
211
125
5"
28
74
145
244
392
563
754
985
300
12"
181
404
771
1329
2179
3083
4124
5315
350
14"
277
602
1139
2034
3335
4718
6312
8134
400
16"
393
856
1620
2893
4628
6711
8979
11571
450
18“
528
1148
2173
3414
5742
8535
12043
15519
500
20“
647
1434
2418
3980
6490
10268
14983
19308
600
24"
843
1861
3473
5706
9427
14140
19349
24807
700
28"
1050
2347
4324
7104
11737
17606
24246
30887
750
30"
1181
2675
4864
7991
13203
19804
27274
34744
800
32"
1353
3064
5570
9207
15120
22282
31433
39789
900
36"
1861
4394
7621
11817
19791
30783
44252
55653
1000
40"
2131
4827
8777
13792
23195
34480
50152
62690
1050
42"
2398
5431
9874
15516
26095
38790
56422
70528

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 9
9520-022-en Revision 16
TM 10477 Edition 05/2022
1.6.2 Disc/stem unit stainless steel, Hastelloy, Titan
Nom. Size
[mm] [inch]
Angle of opening
20°
30°
40°
50°
60°
70°
80°
90°
50
2“
2
7
14
28
46
69
92
124
65
2½“
4
14
27
49
80
118
158
211
80
3“
8
22
41
75
123
179
240
318
100
4“
17
48
91
160
259
375
502
660
125
5"
28
74
145
244
392
563
754
985
150
6“
39
97
194
316
503
717
958
1244
200
8“
85
202
415
658
1036
1463
1956
2523
250
10“
119
274
527
949
1484
2038
2727
3514
300
12“
181
404
771
1329
2179
3083
4124
5315
350
14“
277
602
1139
2034
3335
4718
6312
8134
400
16“
393
856
1620
2893
4628
6711
8979
11571
450
18"
528
1148
2173
3414
5742
8535
12043
15519
500
20"
647
1434
2418
3980
6490
10268
14983
19308
600
24"
843
1861
3473
5706
9427
14140
19349
24807
700
28"
1050
2347
4324
7104
11737
17606
24246
30887
750
30"
1181
2675
4864
7991
13203
19804
27274
34744
800
32"
1353
3064
5570
9207
15120
22282
31433
39789
900
36"
1861
4394
7621
11817
19791
30783
44252
55653
1000
40"
2131
4827
8777
13792
23195
34480
50152
62690
1050
42“
2398
5431
9874
15516
26095
38790
56422
70528
1.7 Weights (ca. kg)
Actuator see data of
the manufacturer.
Nom. size
Lug style body
Sandwich-
body
[mm]
[inch]
Open staff end
Lever
Gear
50
2“
5
3
0,8
2
65
2½“
7
4
0,8
2
80
3“
8,1
5
0,8
2
100
4“
10,8
6,3
1,1
2
125
5"
14,5
7,7
1,1
2
150
6“
15,8
10
1,4
3,9
200
8“
24,6
16,5
1,9
3,9
250
10“
33,3
24,5
1,9
3,9
300
12“
57
37
1,9
7,7
350
14“
87
87
--
7,7
400
16“
107
107
--
7,7
450
18"
152
152
--
13,5
500
20"
185
185
--
13,5
600
24"
254
254
--
31,5
700
28"
280
280
--
32,5
750
30"
300
300
--
31,5
800
32"
410
410
--
31,5
900
36"
460
460
--
31,5
1000
40"
480
480
--
37,5
1050
42“
500
500
--
37,5

Series NKS-C, NKSP-C, NKL-C, NKLP-C Page 10
9520-022-en Revision 16
TM 10477 Edition 05/2022
1.8 Breakaway torques
Nom. size
Mderf
MdS
MdH
MdT
[mm]
[inch]
[Nm]
[Nm]
[Nm]
[Nm]
50
2“
26
159
103
105
65
2½"
36
159
103
105
80
3“
46
159
103
105
100
4“
60
335
216
222
125
5"
80
335
216
222
150
6“
110
608
393
402
200
8“
167
456
295
302
250
10“
278
664
457
469
300
12“
333
664
457
469
350
14“
450
1227
845
866
400
16“
500
1227
845
866
450
18"
600
2909
2004
2053
500
20"
650
2909
2004
2053
600
24"
890
6069
4181
4283
700
28"
1500
6069
4181
4283
750
30"
2000
10374
7147
7321
800
32"
2300
10374
7147
7321
900
36"
2700
10374
7147
7321
1000
40"
3400
10374
7147
7321
1050
42"
3600
10374
7147
7321
Mderf = incl. 10% safety MdH= Hastelloy stem *
MdS= Stainless steel stem * MdT= Titanium stem *
1.9 Cavitation coefficient z for 75%
duty
Nom. size
at kv/kvs = 75 %
[mm]
[inch]
z
50
2“
0,47
65
2½"
0,46
80
3“
0,47
100
4“
0,27
125
5"
0,29
150
6“
0,38
200
8“
0,29
250
10“
0,37
300
12“
0,33
350
14“
0,26
400
16“
0,22
450
18"
0,20
500
20"
0,19
600
24"
0,24
700
28"
0,29
750
30"
0,30
800
32"
0,30
900
36"
0,25
1000
40"
0,29
1050
42"
0,28
* Includes safety factor 1,5
1.10 Pressure-temperature-diagram
When used in the minus temperature range, the regulations applicable in the country in question must
be observed.