Cv-values: J4A

Series	Code	Description
J4A	J4A	NELES EASYFLOW 3-PIECE BALL VALVE SERIES J4A, REDUCED BORE

Series

Code

Description

J4A

NELES EASYFLOW 3-PIECE BALL VALVE SERIES J4A, REDUCED BORE

Links:

J4 series 3-piece floating reduced bore ball valves are available with polymeric seats that provide long and reliable performance. They are easy to automate with direct mount actuator capability. Suitable for light control and tight shut-off duties. Screwed, socket weld, or butt weld ends, ASME Class 800 sizes DN 15 through 50.

SIZE	Relative opening h
RN = Reduction Number
15	0.5	0	0.3	0.5	0.8	1.3	2	3	4.5	6.5	11	13
20	0.75	0	0.7	1.4	2	3	5	8	11	17	27	33
25	1	0	1	1.9	2.7	4	6.2	10	15	22	35	44
32	1.25	0	1	1.9	2.7	4	6.2	10	15	23	36	46
40	1.5	0	2	4	5.7	8.5	13	21	31	47	75	95
50	2	0	2.3	4.5	7	10	16	25	37	56	90	111

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.5

0.3

0.5

0.8

1.3

4.5

6.5

0.75

0.7

1.4

1.9

2.7

6.2

1.25

1.9

2.7

6.2

1.5

5.7

8.5

2.3

4.5

111

C_v/d²-values

SIZE	Relative opening h
RN = Reduction Number
15	0.5	0	0.528	0.695	0.799	0.871	0.923	0.957	0.979	0.991	0.998	1
20	0.75	0	0.528	0.695	0.799	0.871	0.923	0.957	0.979	0.991	0.998	1
25	1	0	0.528	0.695	0.799	0.871	0.923	0.957	0.979	0.991	0.998	1
32	1.25	0	0.528	0.695	0.799	0.871	0.923	0.957	0.979	0.991	0.998	1
40	1.5	0	0.528	0.695	0.799	0.871	0.923	0.957	0.979	0.991	0.998	1
50	2	0	0.528	0.695	0.799	0.871	0.923	0.957	0.979	0.991	0.998	1

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.5

0.528

0.695

0.799

0.871

0.923

0.957

0.979

0.991

0.998

0.75

0.528

0.695

0.799

0.871

0.923

0.957

0.979

0.991

0.998

0.528

0.695

0.799

0.871

0.923

0.957

0.979

0.991

0.998

1.25

0.528

0.695

0.799

0.871

0.923

0.957

0.979

0.991

0.998

1.5

0.528

0.695

0.799

0.871

0.923

0.957

0.979

0.991

0.998

0.528

0.695

0.799

0.871

0.923

0.957

0.979

0.991

0.998

F_L-values

SIZE	Relative opening h
RN = Reduction Number
15	0.5	0	0.91	0.91	0.9	0.88	0.85	0.8	0.74	0.67	0.59	0.51
20	0.75	0	0.91	0.91	0.9	0.88	0.85	0.8	0.74	0.67	0.59	0.51
25	1	0	0.91	0.91	0.9	0.88	0.85	0.8	0.74	0.67	0.59	0.51
32	1.25	0	0.91	0.91	0.9	0.88	0.85	0.8	0.74	0.67	0.59	0.51
40	1.5	0	0.91	0.91	0.9	0.88	0.85	0.8	0.74	0.67	0.59	0.51
50	2	0	0.91	0.91	0.9	0.88	0.85	0.8	0.74	0.67	0.59	0.51

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.5

0.91

0.9

0.88

0.85

0.8

0.74

0.67

0.59

0.51

0.75

0.91

0.9

0.88

0.85

0.8

0.74

0.67

0.59

0.51

0.91

0.9

0.88

0.85

0.8

0.74

0.67

0.59

0.51

1.25

0.91

0.9

0.88

0.85

0.8

0.74

0.67

0.59

0.51

1.5

0.91

0.9

0.88

0.85

0.8

0.74

0.67

0.59

0.51

0.91

0.9

0.88

0.85

0.8

0.74

0.67

0.59

0.51

X_T-values

SIZE	Relative opening h
RN = Reduction Number
15	0.5	0	0.82	0.82	0.8	0.75	0.67	0.57	0.42	0.3	0.2	0.15
20	0.75	0	0.82	0.82	0.8	0.75	0.67	0.57	0.42	0.3	0.2	0.15
25	1	0	0.82	0.82	0.8	0.75	0.67	0.57	0.42	0.3	0.2	0.15
32	1.25	0	0.82	0.82	0.8	0.75	0.67	0.57	0.42	0.3	0.2	0.15
40	1.5	0	0.82	0.82	0.8	0.75	0.67	0.57	0.42	0.3	0.2	0.15
50	2	0	0.82	0.82	0.8	0.75	0.67	0.57	0.42	0.3	0.2	0.15

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.5

0.82

0.8

0.75

0.67

0.57

0.42

0.3

0.2

0.15

0.75

0.82

0.8

0.75

0.67

0.57

0.42

0.3

0.2

0.15

0.82

0.8

0.75

0.67

0.57

0.42

0.3

0.2

0.15

1.25

0.82

0.8

0.75

0.67

0.57

0.42

0.3

0.2

0.15

1.5

0.82

0.8

0.75

0.67

0.57

0.42

0.3

0.2

0.15

0.82

0.8

0.75

0.67

0.57

0.42

0.3

0.2

0.15

z-values

SIZE	Relative opening h
RN = Reduction Number
15	0.5	0	0.52	0.51	0.47	0.42	0.36	0.29	0.22	0.16	0.1	0.06
20	0.75	0	0.52	0.51	0.47	0.42	0.36	0.29	0.22	0.16	0.1	0.06
25	1	0	0.52	0.51	0.47	0.42	0.36	0.29	0.22	0.16	0.1	0.06
32	1.25	0	0.52	0.51	0.47	0.42	0.36	0.29	0.22	0.16	0.1	0.06
40	1.5	0	0.52	0.51	0.47	0.42	0.36	0.29	0.22	0.16	0.1	0.06
50	2	0	0.52	0.51	0.47	0.42	0.36	0.29	0.22	0.16	0.1	0.06

SIZE

Relative opening h

INCH

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

RN = Reduction Number

0.5

0.52

0.51

0.47

0.42

0.36

0.29

0.22

0.16

0.1

0.06

0.75

0.52

0.51

0.47

0.42

0.36

0.29

0.22

0.16

0.1

0.06

0.52

0.51

0.47

0.42

0.36

0.29

0.22

0.16

0.1

0.06

1.25

0.52

0.51

0.47

0.42

0.36

0.29

0.22

0.16

0.1

0.06

1.5

0.52

0.51

0.47

0.42

0.36

0.29

0.22

0.16

0.1

0.06

0.52

0.51

0.47

0.42

0.36

0.29

0.22

0.16

0.1

0.06

File creation day: 13.1.2025 (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