Full Welded Ball Valve Manufacturer
The shape of the fully welded ball valve is more like a sphere, so the structure of the valve is more compact. The weight is lighter, the strength is stronger, the slag is not easy to accumulate in the valve cavity, the volume is reduced, the valve is smaller, the space for ground burial or wellhead installation is saved, and the cost is saved.
At the same time, our fully welded ball valve has a high-performance non-leaking self-sealing valve seat. It effectively solves the problem of internal leakage, and the elastic deformation energy of the elastomer can self-seal. Rubber elastomers have great advantages in gas and have achieved good results. It can replace the polymer material PTFE in non-wearable media to avoid leakage caused by impurities in the pipeline. Like the fully welded ball valve, it also adopts the design of releasing the valve stem, releasing static electricity, and providing fire protection. At the same time, our fully welded ball valve also sets up a bracket platform for installing the driving device. It is convenient to install a turbine worm drive device, pneumatic device, electric device, hydraulic device, and gas-liquid coupling device,
At the same time, our company has developed a direct buried welded ball valve with a PE overlay section, which overcomes the fatal shortcomings of ordinary PE valves, greatly improving the service life and reliability of the valve, and saving unnecessary frequent replacement of the valve, which brings financial losses.
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The Model of the Fully Welded Ball Valve
Small-diameter (DN15-DN150) handle-driven fully welded ball valve, commonly used for water, gas, oil and other conventional media.
Medium-diameter (DN50-DN500) turbine-driven fully welded ball valve, suitable for applications requiring a large operating torque.
Large-diameter (DN50-DN1400) turbine-driven fully welded ball valve, commonly used in harsh conditions such as long-distance pipelines, urban gas, and long-distance heating.
The basic type of fully welded ball valve is suitable for normal opening and closing conditions.
Our Fire Protection Fully Welded Ball Valve Design Is Safe and Reliable
The fully welded ball valve passes the API607 fireproof certification and is a reliable guardian in high-pressure conditions such as bidirectional sealing.
Our fully welded ball valves are a structure with a valve stem that is always blown out and anti-static. We also have a fire-proof design through API 607. Our upstream and downstream are a single-piston structure valve seat combination; each valve seat can isolate the pipeline and valve cavity, and can achieve bidirectional sealing. When the pressure value on both sides of the valve is higher, the sealing force is greater. After the pressure in the valve chamber exceeds the discharge value, each valve seat can discharge it.
Why Did You Choose Liangzheng?
Liangzheng was established in 2003 and has the Changzhou gas valve production base. Binhai General Valve Production Base, tianjin li control valve production base, Fujian Casting Production Base, etc., with a total land area of 100 mu and more than 350 employees. After years of hard work and development, it is a value enterprise integrating scientific research, design, manufacturing, sales, and service.
As a professional manufacturer of gas valves, our company has over 20 years of experience in designing and manufacturing valves. Among them, the domestic market share of our gas ball valve series products has reached 20%, and that of our gas maintenance-free soft-sealed gate valve series products has reached 31%. We have ranked among the top three in the industry for many consecutive years. The
Products are widely used in industries such as petroleum, chemical engineering, natural gas, power, water supply and drainage, metallurgy and mining. It is a well-known leading enterprise in the gas valve industry and a key high-tech enterprise under the national torch program.
Application Scenarios of Fully Welded Ball Valve
Both the upstream and downstream valve seats are single-piston-structure valve seats. Each valve seat can isolate the pipeline from the valve chamber, i.e., realize bidirectional sealing. The higher the pressure value on both sides of the valve, the greater the sealing force.
Our fully welded ball valve is a combination of a full-diameter structure and a special structure of the valve seat and valve stem. At the same time, we can extend the valve stem, drain, vent, and grease injection. It also has low operating torque, and it is compatible with pipeline cathodic protection and enhanced external corrosion.
The adjustable height operation extension rod of our fully welded ball valve is a more reliable and safe product for the PE pipeline system of natural gas transmission and distribution, which can adapt to different buried depth conditions.
Our fully welded ball valves have heat-resistant and high-pressure-resistant performance, and adopt an anti-static design – that is, a conductive path is formed between the valve cavity and the valve body (the valve body is usually connected to the grounding device of the pipeline system), thereby eliminating parts that are prone to or may accumulate static electricity.
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What Our Clients Say
I work on high-temperature and high-pressure pipeline systems. After adopting your company’s fully welded ball valves, leakage and fire safety worries have been completely resolved. The bidirectional sealing design also makes me feel very at ease. After more than two years of operation, there have been no leakage accidents, and maintenance costs have been greatly reduced.
ProcurementIndonesiaI work in the chemical industry. The valve body material and surface treatment technology of this fully welded ball valve are excellent, and there has been no damage from long-term corrosive media.
EngineerUnited StatesThe fireproof design and fully welded structure of this fully welded ball valve perfectly match our needs. It has been installed on the offshore platform for more than 3 years and has never caused a stoppage due to corrosion and sealing failure.
Platform Mechanical SupervisorNorway
Yes, I have the API607 fireproof standard.
Of course, the only possible external leakage of the fully welded ball valve is the seal at the stem, so the seal at the stem is the guarantee of the fully welded ball valve to ensure zero external leakage. The valve stem seal of the fully welded ball valve produced by Lianzheng uses three seals; the first and second are ring seals, and the third is a replaceable ring seal. The three seals are the guarantee of zero external leakage.
For the safe welding of industrial valves, the extension rod can be used according to the user’s needs, and the extension length can be specified by the user. The discharge valve, vent valve, grease injection valve, and other auxiliary pipe fittings are all led to the top of the valve, which is convenient for operation. There are different descriptions of the height of the valve, which must be confirmed clearly when placing an order.
Advantages of Fully Welded Ball Valves
The fully welded ball valve adopts a spherical structure design, with more uniform stress distribution, which can effectively avoid bending deformation caused by concentrated stress in the pipeline. Compared with the cylindrical valve body, the spherical valve body is more stable when bearing the tensile stress and bending load of the pipeline; Its appearance is beautiful and generous, and its unique feature is that there is a weld in the middle, which can reduce the welding process and reduce the quality hazards brought by the weld.
The Shape Advantage of the Fully Welded Ball Valve
The shape of the fully welded ball valve can be closer to spherical, so that the valve body structure is more compact, lighter in weight, stronger in strength, less likely to produce slag inside the valve, and reduces the number of leakage points. The spherical valve benefits from the special shape of the sphere; its volume is small, can significantly reduce the size of the valve, save the time required for ground burial or wellhead installation, and reduce the related costs.
The Advantages of Welding Support for Fully Welded Ball Valves
The spherical valve foot support of the fully welded ball valve can be designed on the bottom or side, thus reducing the volume and saving installation space; The welding support structure is not set at welds, which makes it safer and more reliable compared to traditional indirect welding methods carried out on both ends of joints.