fully welded ball valve
I. Introduction:
The body of the fully welded ball valve is an integrated welded ball valve formed by pressing carbon steel seamless steel pipes. Since the valve seat is composed of a carbon-filled Teflon sealing ring and a disc spring, it has strong adaptability to changes in pressure and temperature, and will not produce any leakage within the rated pressure and temperature range. It is widely used in urban gas systems: gas output pipelines, main pipelines and various branch pipelines; central heating: large-scale heating equipment output pipelines, main pipelines, branch pipelines; heat exchangers: pipeline and loop opening and closing; steel plants: various fluid pipelines, waste gas discharge pipelines, gas supply pipelines; various industrial equipment: various heat treatment pipelines, various industrial gas and thermal pipelines.
II. Product Features:
① Integrated fully welded ball valve, with no external leakage or other phenomena;
② Adopts a floating ball structure, and the inclined elastic washer ensures that the sealing ring is tightly pressed against the ball. Even under unstable pressure, the valve can maintain tight sealing;
③ Since the material of the valve body is the same as that of the pipeline, there will be no uneven stress, and there will be no deformation due to earthquakes or vehicles passing on the ground, making the pipeline more aging-resistant;
④ The sealing ring is made of RPTFE material containing 20% carbon, ensuring complete zero leakage;
⑤ Direct-buried fully welded ball valves can be directly buried underground, without the need to build large valve wells. Only a small shallow well needs to be set on the ground, which greatly saves construction costs and engineering time;
⑥ The length of the valve body and the height of the valve stem can be adjusted according to the construction and design requirements of the pipeline;
⑦ The ball processing process is tracked and detected by advanced computer detectors, with extremely high processing precision and light operation;
⑧ No maintenance, adjustment or lubrication is required, and it is easy to install. The valve body does not contain heavy and unreliable castings.
III. Component Materials:
Component Name | Material Properties | |
Valve Body | Carbon Steel | ST35.8 |
Valve Stem Chamber | Carbon Steel | ST35.8 |
Ball | Stainless Steel | SS304 |
Valve Stem | Stainless Steel | SS304 |
Sealing Ring | Teflon | PTFE+20%C |
Disc Gasket | Manganese Steel | 65Mn |
Handle | Carbon Steel | WCB |
O-Ring | Fluororubber | FPM |
Bushing | Teflon | PTFE |
IV. External Dimensions:
DN | PN | L | D | D1 | D2 | H | B | H1 |
10 | 40 | 230 | 10 | 17.2 | 33.7 | 98 | 145 | 22 |
15 | 230 | 10 | 21.3 | 33.7 | 98 | 145 | 22 | |
20 | 230 | 15 | 26.9 | 42.4 | 103 | 145 | 23 | |
25 | 230 | 20 | 33.7 | 48.3 | 118 | 145 | 34 | |
32 | 260 | 25 | 42.4 | 60.3 | 121 | 145 | 33 | |
40 | 260 | 32 | 48.3 | 70.0 | 120 | 190 | 43 | |
50 | 300 | 40 | 60.3 | 88.9 | 127 | 190 | 44 | |
65 | 25 | 300 | 50 | 76.1 | 101.6 | 159 | 280 | 62 |
80 | 300 | 65 | 88.9 | 121.0 | 171 | 280 | 68 | |
100 | 325 | 80 | 114.3 | 146.0 | 218 | 280 | 101 | |
125 | 325 | 100 | 139.7 | 177.8 | 252 | 400 | 101 | |
150 | 350 | 125 | 168.3 | 219.1 | 272 | 600 | 107 | |
200 | 350 | 150 | 219.7 | 273 | 300 | 900 | 123 |
| Machinery & Equipment/Valves/Ball Valves | |
