Feature：
JDBV valves are available in three bonnet designs.
1. The design is the Bolted Bonnet ,With male-famele joint,spiral wound gasket,made in F304L+graphite.Ringjoint gasket are also available on request.
2. The second design is the welded bonnet,with a threaded and seal welded joint.On request a full penetration strength welded joint is available.
3. The third design is the pressure seal bonnet,with a threaded and pressure seal bonnet joint.
4. Globe valve Design Construction and Specifications
5. Full Port or conventional port
6. Outside Screw and Yoke(OS&Y)
7. Two piece self-aligning packing gland
Standard:
Design & manufacture: APl602，ANSI B l6.34
Socket weld Ends to ASME B16.11
Thread Ends(NPT)to ANSI B1.20.1
Testing & Inspection: API 598
Structure：
Forged piston check valve
Main parts
|
NO
|
NAME OF PART
|
|
1
|
BOLT
|
|
2
|
COVER
|
|
3
|
GASKET
|
|
4
|
DISC
|
|
5
|
SEAT
|
|
6
|
BODY
|
Main parts material
|
NO
|
NAME OF PART
|
MATERIAL
|
|
1
|
BOLT
|
ASTM A193 B7
|
|
2
|
COVER
|
ASTM A105 - Also available in F5, F11, F304, F316, F51, F53, F347, and F321
|
|
3
|
GASKET
|
GRAPHITE
|
|
4
|
DISC
|
ASTM A276 420
|
|
5
|
SEAT
|
INTEGRAL+HF
|
|
6
|
BODY
|
ASTM A105 - Also available in F5, F11, F304, F316, F51, F53, F347, and F321
|
Main Dimensions
CLASS 800 - Forged Steel Piston Check Valves - Socket Weld Ends
DIMENSIONS & WEIGHTS
|
SIZE
|
in
|
3/8
|
1/2
|
3/4
|
1
|
1-1/4
|
1-1/2
|
2
|
|
mm
|
10
|
13
|
19
|
25
|
32
|
38
|
51
|
|
D
|
in
|
.39
|
.51
|
.71
|
.94
|
1.14
|
1.44
|
1.83
|
|
mm
|
10
|
13
|
18
|
24
|
29
|
36.5
|
46.5
|
|
D1
|
in
|
1.34
|
1.34
|
1.57
|
1.89
|
2.52
|
2.52
|
3.07
|
|
mm
|
34
|
34
|
40
|
48
|
64
|
64
|
78
|
|
D2
|
in
|
.69
|
.86
|
1.07
|
1.33
|
1.68
|
1.92
|
2.41
|
|
mm
|
17.6
|
21.8
|
27.1
|
33.8
|
42.6
|
48.7
|
61.1
|
|
L1
|
in
|
.38
|
.38
|
.5
|
.5
|
.5
|
.5
|
.63
|
|
mm
|
9.6
|
9.6
|
12.7
|
12.7
|
12.7
|
12.7
|
15.9
|
|
A
|
in
|
3.11
|
3.62
|
4.37
|
4.72
|
4.72
|
5.51
|
7.01
|
|
mm
|
79
|
92
|
111
|
120
|
120
|
140
|
178
|
|
H2
|
in
|
6.22
|
6.46
|
7.64
|
8.70
|
9.61
|
11.10
|
12.99
|
|
mm
|
158
|
164
|
194
|
221
|
244
|
282
|
330
|
Forged swing check valve
CLASS 800 - Forged Steel Swing Check Valves - Socket Weld Ends
DIMENSIONS & WEIGHTS
|
SIZE
|
in
|
.375
|
.5
|
.75
|
1
|
1.25
|
1.5
|
2
|
|
mm
|
10
|
15
|
20
|
25
|
32
|
40
|
50
|
|
D
|
in
|
.39
|
.51
|
.71
|
.94
|
1.14
|
1.44
|
1.83
|
|
mm
|
10
|
13
|
18
|
24
|
29
|
36.5
|
46.5
|
|
D1
|
in
|
1.34
|
1.34
|
1.57
|
1.89
|
2.52
|
2.52
|
3.07
|
|
mm
|
34
|
34
|
40
|
48
|
64
|
64
|
78
|
|
D2
|
in
|
.69
|
.86
|
1.07
|
1.33
|
1.68
|
1.92
|
2.41
|
|
mm
|
17.6
|
21.8
|
27.1
|
33.8
|
42.6
|
48.7
|
61.1
|
|
L1
|
in
|
.38
|
.38
|
.5
|
.5
|
.5
|
.5
|
.63
|
|
mm
|
9.6
|
9.6
|
12.7
|
12.7
|
12.7
|
12.7
|
15.9
|
|
A
|
in
|
3.11
|
3.62
|
4.37
|
4.72
|
4.72
|
5.51
|
7.01
|
|
mm
|
79
|
92
|
111
|
120
|
120
|
140
|
178
|
|
H2
|
in
|
6.22
|
6.46
|
7.64
|
8.70
|
9.61
|
11.10
|
12.99
|
|
mm
|
158
|
164
|
194
|
221
|
244
|
282
|
330
|