Parker Hannifin Corporation
Fluid System Connectors
Otsego, Michigan
Catalog 3501E
Compact Flow Control Valves
B6
FCCB731 Compact Bi-Directional Flow Control
Part
No.
TUBE
SIZE (IN)
NPT
Hex
1
Hex
2
H
Open
H
Closed L
FCCB731-5/32-2 5/32 1/8
0.63 0.39 1.67
1.44 0.85
FCCB731-4-2
1/4
1/8
0.63 0.39 1.67
1.44 0.85
FCCB731-4-4
1/4
1/4
0.63 0.39 1.67
1.44 0.85
FCKC731 Knobless Meter Out Flow Control
art
No.
TUBE
SIZE (IN)
NPT /
UNF
Hex 1
MM
H
L
FCKC731-2-0
1/8
10-32
0.69
0.65
FCKC731-2-2
1/8
1/8
13
0.79
0.75
FCKC731-5/32-0
5/32
10-32
0.69
0.65
FCKC731-5/32-2
5/32
1/8
13
0.79
0.75
FCKC731-4-0
1/4
10-32
0.69
0.77
FCKC731-4-2
1/4
1/8
13
0.79
0.85
FCKC731-4-4
1/4
1/4
17
1.04
0.89
FCKC731-5-2
5/16
1/8
13
0.79
1.02
FCKC731-5-4
5/16
1/4
17
1.04
1.06
FCKC731-6-4
3/8
1/4
17
1.04
1.14
FCKC731-6-6
3/8
3/8
20
1.14
1.36
FCCB731 Compact Bi-directional Flow Control
-
BSPT
Part
No.
TUBE
SIZE
(
MM)
BSPT Hex
1
Hex
2
H
Closed
H
Open
L
FCCB731-4M-2R
4 1/8
16 10 36.5
42.5
22.0
FCCB731-6M-2R
6 1/8
16 10 36.5
42.5
22.0
FCCB731-6M-4R
6 1/4
16 10 36.5
42.5
22.0
FCCB731-8M-2R
8 1/8
19 14 40.0
45.0
27.0
FCCB731-8M-4R
8 1/4
19 14 40.0
45.0
27.0
FCCB731-8M-6R
8 3/8
19 14 40.0
45.0
27.0
FCCB731 Compact Bi-directional Flow Control
-
BSPP
Part
No.
TUBE
SIZE
(
MM)
BSPP Hex
1
Hex
2
H
Closed
H
Open
L
FCCB731-4M-2G 4 1/8
10 16 38.0
44.0
22.0
FCCB731-6M-2G 6 1/8
10 16 38.0
44.0
22.0
FCCB731-6M-4G 6 1/4
10 16 36.5
42.5
22.0
FCCB731-8M-2G 8 1/8
14 19
41.5
48.0
28.0
FCCB731-8M-4G 8 1/4
14 19
41.5
48.0
28.0
FCCB731-8M-6G 8 3/8
14 19
41.5
48.0
28.0
FCKC731 Knobless Compact Flow Control -
BSPP
Part
No.
TUBE
SIZE (MM)
BSPP /
M5
Hex
1
H
L
FCKC731-4M-M5
4
M5x0.8
8.0
17.5
17.0
FCKC731-4M-2G
4
1/8
13.0
25.0
19.0
FCKC731-6M-M5
6
M5x0.8
8.0
17.5
19.0
FCKC731-6M-2G
6
1/8
13.0
25.0
21.0
FCKC731-6M-4G
6
1/4
17.0
26.5
22.0
FCKC731-8M-2G
8
1/8
13.0
25.0
26.0
FCKC731-8M-4G
8
1/4
17.0
26.5
27.0
FCKC731-8M-6G
8
3/8
20.0
37.5
29.0
FCKC731-10M-4G
10
1/4
17.0
26.5
29.0
FCKC731-10M-6G
10
3/8
20.0
37.5
31.0
FCKC731-10M-8G
10
1/2
23.0
43.0
37.0
FCKC731-12M-6G
12
3/8
20.0
37.5
6.8
FCKC731-12M-8G
12
1/2
23.0
43.0
37.0
ØD
L
H
Hex 2
Hex 1
Hex 1
L
H
Hex 2
L
H
Hex 1
ØD
L
H
Hex 2
Hex 1
L
H
Hex 1