Product Main

Specifications

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