Cv-values: L800ANSI300FTC1

Series	Code	Description
L6 Model D	L800ANSI300FTC1_Q	SERIES L6 HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, MODEL D, PRESSURE CLASSES ASME300 & PN25-40, THROUGH SHAFT DESIGN, FLOW BALANCING TRIM Q-DISC

Series

Code

Description

L6 Model D

L800ANSI300FTC1_Q

SERIES L6 HIGH PERFORMANCE TRIPLE ECCENTRIC METAL SEATED BUTTERFLY VALVE, MODEL D, PRESSURE CLASSES ASME300 & PN25-40, THROUGH SHAFT DESIGN, FLOW BALANCING TRIM Q-DISC

Links:

IMO

Technical bulletin

Neles™ Q-Disc™ is a flow balancing trim for Neldisc™ Model D butterfly valves. Q-Disc design features extreme flow balancing for control service. Dynamic torque effect from the flow has been significantly reduced allowing high pressure drop service. With Q-Disc, the pressure is distributed more evenly resulting in lower torque requirement and more effective contol of flow. Q-Disc design also provides market leading noise reduction even up to 12 dB. The Q-Disc add-on is integrated to the standard Neles™ Neldisc™ LW, LG and L6 Model D disc. The valve itself is the Neles™ Neldisc™ Model D metal seated triple eccentric high performance butterfly valve.

C_v-values

SIZE	Relative opening h
RN = Reduction Number
80	3	0	11.8	32.2	50.6	63.7	74.5	90	113	140	170	196
100	4	0	19.8	50.7	76.4	89.2	102.5	125	162	218	281	330
150	6	0	55.2	92	129	175	239	331	451	607	782	920
200	8	0	88.2	147	206	279	382	529	720	970	1250	1470
250	10	0	170	283	396	538	736	1020	1390	1870	2410	2830
300	12	0	232	386	540	733	1000	1390	1890	2550	3280	3860

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

11.8

32.2

50.6

63.7

74.5

113

140

170

196

100

19.8

50.7

76.4

89.2

102.5

125

162

218

281

330

150

55.2

129

175

239

331

451

607

782

920

200

88.2

147

206

279

382

529

720

970

1250

1470

250

170

283

396

538

736

1020

1390

1870

2410

2830

300

232

386

540

733

1000

1390

1890

2550

3280

3860

C_v/d²-values

SIZE	Relative opening h
RN = Reduction Number
80	3	0	0.128	0.151	0.187	0.22	0.256	0.291	0.315	0.339	0.364	0.383
100	4	0	0.128	0.151	0.187	0.22	0.256	0.288	0.313	0.335	0.359	0.376
150	6	0	0.088	0.124	0.161	0.198	0.239	0.282	0.32	0.35	0.377	0.398
200	8	0	0.088	0.124	0.161	0.199	0.24	0.284	0.32	0.349	0.375	0.396
250	10	0	0.1	0.133	0.168	0.204	0.245	0.288	0.322	0.35	0.376	0.396
300	12	0	0.088	0.124	0.159	0.197	0.24	0.284	0.322	0.352	0.378	0.4

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.128

0.151

0.187

0.22

0.256

0.291

0.315

0.339

0.364

0.383

100

0.128

0.151

0.187

0.22

0.256

0.288

0.313

0.335

0.359

0.376

150

0.088

0.124

0.161

0.198

0.239

0.282

0.32

0.35

0.377

0.398

200

0.088

0.124

0.161

0.199

0.24

0.284

0.32

0.349

0.375

0.396

250

0.1

0.133

0.168

0.204

0.245

0.288

0.322

0.35

0.376

0.396

300

0.088

0.124

0.159

0.197

0.24

0.284

0.322

0.352

0.378

0.4

F_L-values

SIZE	Relative opening h
RN = Reduction Number
80	3	0	0.86	0.86	0.86	0.85	0.82	0.78	0.74	0.7	0.65	0.63
100	4	0	0.86	0.86	0.86	0.85	0.82	0.78	0.74	0.7	0.65	0.63
150	6	0	0.86	0.86	0.86	0.85	0.82	0.78	0.74	0.7	0.65	0.63
200	8	0	0.86	0.86	0.86	0.85	0.82	0.78	0.74	0.7	0.65	0.63
250	10	0	0.86	0.86	0.86	0.85	0.82	0.78	0.74	0.7	0.65	0.63
300	12	0	0.86	0.86	0.86	0.85	0.82	0.78	0.74	0.7	0.65	0.63

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.86

0.85

0.82

0.78

0.74

0.7

0.65

0.63

100

0.86

0.85

0.82

0.78

0.74

0.7

0.65

0.63

150

0.86

0.85

0.82

0.78

0.74

0.7

0.65

0.63

200

0.86

0.85

0.82

0.78

0.74

0.7

0.65

0.63

250

0.86

0.85

0.82

0.78

0.74

0.7

0.65

0.63

300

0.86

0.85

0.82

0.78

0.74

0.7

0.65

0.63

X_T-values

SIZE	Relative opening h
RN = Reduction Number
80	3	0	0.58	0.58	0.57	0.54	0.49	0.45	0.42	0.39	0.35	0.3
100	4	0	0.58	0.58	0.57	0.54	0.49	0.45	0.42	0.39	0.35	0.3
150	6	0	0.58	0.58	0.57	0.54	0.49	0.45	0.42	0.39	0.35	0.3
200	8	0	0.58	0.58	0.57	0.54	0.49	0.45	0.42	0.39	0.35	0.3
250	10	0	0.58	0.58	0.57	0.54	0.49	0.45	0.42	0.39	0.35	0.3
300	12	0	0.58	0.58	0.57	0.54	0.49	0.45	0.42	0.39	0.35	0.3

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.58

0.57

0.54

0.49

0.45

0.42

0.39

0.35

0.3

100

0.58

0.57

0.54

0.49

0.45

0.42

0.39

0.35

0.3

150

0.58

0.57

0.54

0.49

0.45

0.42

0.39

0.35

0.3

200

0.58

0.57

0.54

0.49

0.45

0.42

0.39

0.35

0.3

250

0.58

0.57

0.54

0.49

0.45

0.42

0.39

0.35

0.3

300

0.58

0.57

0.54

0.49

0.45

0.42

0.39

0.35

0.3

z-values

SIZE	Relative opening h
RN = Reduction Number
80	3	0	0.52	0.5	0.45	0.41	0.38	0.35	0.31	0.26	0.22	0.2
100	4	0	0.52	0.5	0.45	0.41	0.38	0.35	0.31	0.26	0.22	0.2
150	6	0	0.52	0.5	0.45	0.41	0.38	0.35	0.31	0.26	0.22	0.2
200	8	0	0.52	0.5	0.45	0.41	0.38	0.35	0.31	0.26	0.22	0.2
250	10	0	0.52	0.5	0.45	0.41	0.38	0.35	0.31	0.26	0.22	0.2
300	12	0	0.52	0.5	0.45	0.41	0.38	0.35	0.31	0.26	0.22	0.2

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.52

0.5

0.45

0.41

0.38

0.35

0.31

0.26

0.22

0.2

100

0.52

0.5

0.45

0.41

0.38

0.35

0.31

0.26

0.22

0.2

150

0.52

0.5

0.45

0.41

0.38

0.35

0.31

0.26

0.22

0.2

200

0.52

0.5

0.45

0.41

0.38

0.35

0.31

0.26

0.22

0.2

250

0.52

0.5

0.45

0.41

0.38

0.35

0.31

0.26

0.22

0.2

300

0.52

0.5

0.45

0.41

0.38

0.35

0.31

0.26

0.22

0.2

File creation day: 22.4.2024 (day.month.year)

Cv-values

Cv/d2-values

FL-values

XT-values

z-values

C_v-values

C_v/d²-values

F_L-values

X_T-values