Long steam buried welded ball valve is a kind of spherical valve with fully closed structure design, suitable for high pressure, large diameter, high temperature, high media concentration and other harsh working conditions. Its connection is fully welded without any leakage point, which can effectively avoid medium leakage and ensure the safety and reliability of the pipeline system.
Its structure mainly consists of ball, seat, stem, flange and welded port. Among them, the ball is the core component of the valve, through the rotation to achieve the opening and closing of the fluid. The seat is responsible for ensuring the sealing performance of the ball to prevent leakage. The stem connects the sphere to the operating device and controls the movement of the sphere through the rotation of the operating device. Flanges and welded ports are used for connection to the pipework.
Long steam buried welded ball valves are mainly used in heating pipelines and pipeline systems, and are easy to operate, take up little space and are safe to use. The valve body is made of the same material as the pipeline, so there is no uneven stress and no deformation of the pipeline due to earthquakes or vehicles passing through the ground. There is no need to manually dive into the ground for adjustment, it can be operated in the ground, which is the main feature of buried her turbo all-welded ball valve. It belongs to the extended stem all-welded ball valve mainly refers to the all-welded ball valve with extended stem and worm gear drive, used in the buried type installation method, and the simple and labour-saving switching method with pot wheel.
Long steam buried welded ball valves do not require maintenance and adjustment as well as lubrication, and are easy to install, which ensures long-term reliable operation at low operating costs. The factory is equipped with large spraying equipment, and the surface adopts plastic spraying treatment technology, which is glossy and beautiful. And equipped with full welding robot and ring seam welding machine and other advanced equipment, to ensure that the production of each valve will not have external leakage and other current articles. The valve body is welded structure, so the weight of the valve by and easy to carry out the absolute green. Installation of the regulating mechanism is very simple, the operating turbine handle can be removed and installed in the opposite direction.
| calibre(mm) |
Nominal pressure |
Nominal pressure |
Product Model |
D |
D14 |
D14 |
D2 |
D3 |
H |
H1 |
A |
L |
number of holes |
Kx |
weight(kg) |
| 15 |
40 |
40 |
103015 |
10 |
95 |
95 |
65 |
14 |
100 |
23 |
120 |
130 |
4 |
8 |
1.8 |
| 20 |
40 |
40 |
103 020 |
15 |
105 |
105 |
75 |
14 |
100 |
24 |
120 |
150 |
4 |
14 |
2.4 |
| 25 |
40 |
40 |
103 025 |
20 |
115 |
115 |
85 |
14 |
105 |
40 |
150 |
160 |
4 |
25 |
2.9 |
| 32 |
40 |
40 |
103 032 |
25 |
140 |
140 |
100 |
18 |
105 |
39 |
150 |
180 |
4 |
41 |
4.7 |
| 40 |
40 |
40 |
103 040 |
32 |
150 |
150 |
110 |
18 |
125 |
59 |
190 |
200 |
4 |
65 |
5.4 |
| 50 |
40 |
40 |
103 050 |
40 |
165 |
165 |
125 |
18 |
130 |
59 |
190 |
230 |
4 |
103 |
7.2 |
| 65 |
25 |
16 |
103 065 |
50 |
185 |
185 |
145 |
18 |
180 |
71 |
280 |
270 |
4 |
180 |
9.7 |
| 80 |
25 |
16 |
103 080 |
65 |
200 |
200 |
160 |
18 |
190 |
77 |
280 |
280 |
8 |
290 |
11.5 |
| 100 |
25 |
16 |
103 100 |
80 |
220 |
220 |
180 |
18 |
220 |
92 |
280 |
300 |
8 |
470 |
16.5 |
| 125 |
25 |
16 |
103 125 |
100 |
250 |
250 |
210 |
18 |
245 |
95 |
420 |
325 |
8 |
830 |
23.6 |
| 150 |
25 |
16 |
103 150 |
125 |
285 |
285 |
240 |
22 |
265 |
103 |
600 |
350 |
8 |
1150 |
32.0 |
| 200 |
25 |
16 |
103 200 |
150 |
340 |
340 |
295 |
22 |
260 |
92 |
900 |
400 |
12 |
1750 |
58.0 |
| 250 |
25 |
16 |
103 250 |
200 |
405 |
405 |
355 |
26 |
300 |
108 |
1200 |
500 |
12 |
3200 |
99.0 |
| 300 |
25 |
16 |
103 300 |
250 |
460 |
460 |
410 |
26 |
- |
132 |
- |
500 |
12 |
4600 |
138.0 |
· Uses:
1. City gas: gas output pipeline, main line and each branch of the money supply pipeline.
2. Centralised heat supply: large-scale heat supply equipment output pipelines, trunk lines and branch lines.
3. Heat exchanger: Pudao and various circuits opening and closing.
4. Iron and steel mills: various fluid pipelines, exhaust gas discharge pipelines, gas and heat supply pipelines, fuel supply pipelines.
5. Various industrial equipment, various heat treatment pipelines, various industrial gas and heat pipelines.
· Performance:
1. As the valve seat is composed of carbon fibre push reinforced sealing ring and carbon shape spring. So it has strong adaptability to changes in pressure and temperature. In the marked pressure and temperature range will not produce any leakage slip.
2. The processing of the sphere is tracked by advanced computer detectors, so the sphere is processed with high precision.
3. It is also equal to a characteristic advantage, because the feeding body material is the same as the pipe material, there will be no uneven stress, and there will be no deformation due to earthquakes and vehicles passing through the ground. The pipe is resistant to aging.
4. Integral all-welded, equal diameter and variable diameter channel, using fixed ball and floating ball. Double piston effect rate sealing system, automatic injection of sealant type bearings.
5. Advantages of parts and design and where it works, in order to prevent static electricity. Valve stem and ball and valve stem and stuffing box are equipped with steel ball and spring, can keep all parts of the valve and the valve body conductive, so that the current through the district, release static electricity. It not only prevents fire, but also prevents corrosion and achieves temporary cut-off for timely maintenance. Valve stem anti-disengagement function is because the valve stem poly valve pressure influence, always produce disengagement force so the valve stem is designed to anti-disengagement structure. The thrust washer of low-coated material is used to support the pressure to the stem, so that the stem is only super to the role of transmitting torque.
We are a company with 20 years of production and sales experience.
We mainly provide safe and reliable API ,JIS ,DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids.
We are a company with 20 years of production and sales experience. We mainly provide safe and reliable API, JIS, DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids.
Have API6D, CE, ISO certificate.
Our group total have about 300 employees. It is a integrated high-tech enterprise which includes casting and production, export safety process service.
· Casting room: 8 casting line, 20,000 square. 2,000 Ton / Year
· Workshop: 40,000 square meters, 270,000 Valves / Year( Including The automatic production line for flange ball valves 5,000 square, 500 PCS / Day )
· Stock : 30 Millon RMB SS valve
Our main customers are distributors and wholesalers at all levels. The main materials are WCB, CF8, CF8M, CF3, CF3M, Duplex, Brass, cast iron, pressure from 150LB to 2,500LB. PN16 - PN160, 10K, 20K, Caliber 1/2″-40", connection method RF, RTJ, FF, BW, etc.
Mainly we export to Brazil, Chile, Ecuador Vietnam, Turkey, Russian, Ukraine, Peru, Mexico, Romania, Czech Republic and other countries.
Company purpose: To provide reliable, efficient and flexible service, adhere to high quality, low price, fast delivery, professional quality control and good after-sales service attitude! Our goal is to become a reliable supplier of products in the petroleum industry.
Audited Supplier 
){kind=link}