Cv-values: QXMBV

Series	Code	Description
XA	QXMBV	NELES SEAT SUPPORTED VALVE SERIES XA WITH Q-TRIM VARIANT (Q-TRIM)

Series

Code

Description

QXMBV

NELES SEAT SUPPORTED VALVE SERIES XA WITH Q-TRIM VARIANT (Q-TRIM)

Links:

The Q-Trim concept is also available in X-MBV valves, the Q-XMBV is intended for certain low pressure drop applications. The Q-XMBV has bi-directional tightness and also the Q-Trim has noise and cavitation attenuation properties to both directions. Q-XMBV is available in sizes DN 50...200 (2"...8") in pressure classes ANSI 150, 300 and DIN PN 10...40. For M1/M2 series valves fitted with Q-Trim, in size range DN 50...300 (2"...12"), sizing calculations can be made with this Nelprof™ code as well.

SIZE	Relative opening h
RN = Reduction Number
50	2	0	1.92	4.46	7.29	10.8	14	17.7	23.4	32.6	61.3	84
80	3	0	5.64	11.9	17.5	23.9	31.7	43	64	95	179	245
100	4	0	7.84	17.6	30.6	42.2	56.5	82	127	199	379	530
150	6	0	18.8	43.8	71.9	109	159	226	325	499	869	1360
200	8	0	32	76	124	188	274	390	561	863	1496	2330

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

1.92

4.46

7.29

10.8

17.7

23.4

32.6

61.3

5.64

11.9

17.5

23.9

31.7

179

245

100

7.84

17.6

30.6

42.2

56.5

127

199

379

530

150

18.8

43.8

71.9

109

159

226

325

499

869

1360

200

124

188

274

390

561

863

1496

2330

C_v/d²-values

SIZE	Relative opening h
RN = Reduction Number
50	2	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
80	3	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
100	4	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
150	6	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205
200	8	0	0.066	0.066	0.1	0.14	0.16	0.17	0.18	0.19	0.205	0.205

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.066

0.1

0.14

0.16

0.17

0.18

0.19

0.205

0.066

0.1

0.14

0.16

0.17

0.18

0.19

0.205

100

0.066

0.1

0.14

0.16

0.17

0.18

0.19

0.205

150

0.066

0.1

0.14

0.16

0.17

0.18

0.19

0.205

200

0.066

0.1

0.14

0.16

0.17

0.18

0.19

0.205

F_L-values

SIZE	Relative opening h
RN = Reduction Number
50	2	0	0.91	0.92	0.92	0.93	0.93	0.92	0.91	0.89	0.79	0.71
80	3	0	0.91	0.92	0.93	0.93	0.93	0.92	0.9	0.87	0.73	0.62
100	4	0	0.91	0.92	0.93	0.93	0.93	0.92	0.89	0.84	0.67	0.56
150	6	0	0.91	0.92	0.93	0.93	0.92	0.91	0.88	0.82	0.66	0.51
200	8	0	0.91	0.92	0.93	0.93	0.92	0.91	0.88	0.82	0.67	0.52

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.91

0.92

0.93

0.92

0.91

0.89

0.79

0.71

0.91

0.92

0.93

0.92

0.9

0.87

0.73

0.62

100

0.91

0.92

0.93

0.92

0.89

0.84

0.67

0.56

150

0.91

0.92

0.93

0.92

0.91

0.88

0.82

0.66

0.51

200

0.91

0.92

0.93

0.92

0.91

0.88

0.82

0.67

0.52

X_T-values

SIZE	Relative opening h
RN = Reduction Number
50	2	0	0.82	0.83	0.83	0.83	0.82	0.8	0.76	0.67	0.41	0.35
80	3	0	0.82	0.83	0.83	0.83	0.82	0.79	0.72	0.56	0.36	0.28
100	4	0	0.82	0.83	0.83	0.83	0.82	0.79	0.68	0.49	0.32	0.21
150	6	0	0.82	0.83	0.83	0.82	0.8	0.75	0.63	0.44	0.32	0.16
200	8	0	0.82	0.83	0.83	0.82	0.8	0.75	0.64	0.46	0.33	0.17

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.82

0.83

0.82

0.8

0.76

0.67

0.41

0.35

0.82

0.83

0.82

0.79

0.72

0.56

0.36

0.28

100

0.82

0.83

0.82

0.79

0.68

0.49

0.32

0.21

150

0.82

0.83

0.82

0.8

0.75

0.63

0.44

0.32

0.16

200

0.82

0.83

0.82

0.8

0.75

0.64

0.46

0.33

0.17

z-values

SIZE	Relative opening h
RN = Reduction Number
50	2	0	0.56	0.55	0.54	0.52	0.51	0.49	0.47	0.43	0.34	0.3
80	3	0	0.56	0.55	0.54	0.52	0.51	0.48	0.45	0.4	0.31	0.27
100	4	0	0.56	0.55	0.54	0.52	0.51	0.48	0.44	0.37	0.29	0.23
150	6	0	0.56	0.55	0.54	0.52	0.49	0.46	0.42	0.35	0.29	0.2
200	8	0	0.56	0.55	0.54	0.52	0.49	0.46	0.42	0.36	0.29	0.21

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.56

0.55

0.54

0.52

0.51

0.49

0.47

0.43

0.34

0.3

0.56

0.55

0.54

0.52

0.51

0.48

0.45

0.4

0.31

0.27

100

0.56

0.55

0.54

0.52

0.51

0.48

0.44

0.37

0.29

0.23

150

0.56

0.55

0.54

0.52

0.49

0.46

0.42

0.35

0.29

0.2

200

0.56

0.55

0.54

0.52

0.49

0.46

0.42

0.36

0.29

0.21

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