Product structure characteristics
A check valve is an “automatic” valve that is opened for downstream flow and closed for counter-flow.Open the valve by the pressure of the medium in the system, and close the valve when the medium flows backwards.The operation varies with the type of check valve mechanism.The most common types of check valves are swing, lift (plug and ball), butterfly, check, and tilting disc.Products are widely used in petroleum, chemical, pharmaceutical, chemica...
Product Structure
MAIN OUTER SIZE
Specification
L
G
A type
B type
C type
D type
E type
F type
DC type
DP type
15
1/2″
38
49
92
49
93
55
42.5
36.3
1/2″
20
3/4″
38
49.5
92
49
94
55
44
38.5
3/4″
25
1″
45
59
102
60
106
65
51
45
1″
32
1 1/4″
54
65.5
114
66
118
74
58
54.5
1 1/4″
40
1 1/2″
55
68
116
69
120
78
61.5
58
1 1/2″
50
2″
60
75
133
...
Product Overview
Manual flanged ball valve is mainly used to cut off or put through the medium, can also be used for fluid regulation and control.Compared with other valves, ball valves have the following advantages:
1, the fluid resistance is small, the ball valve is one of the least fluid resistance in all valves, even if it is a reduced diameter ball valve, its fluid resistance is quite small.
2, the switch is fast and convenient, as long as the stem rotates 90°, the ball valve will comple...
Product Description
J41H flanged globe valves are designed and manufactured to API and ASME standards.Globe valve, also known as cut-off valve, belongs to the forced sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak.When the medium from the lower part of the disc into the valve, the operation force needed to overcome the resistance is the friction force of the stem and packing and the thrust generated by the pressure of t...