Standard Diameter for Manual Thermal Fully Welded Ball Valves

Product Description

Product Description

A ball valve is a valve that is driven by the valve stem and rotates around the axis of the ball valve. Its working principle relies on pneumatic, electric, or manual driving to rotate the valve chain to make the valve unobstructed or blocked. Due to the manual grinding used for the sealing of its hard sealed ball valve, it can only be used when the valve core and sealing ring completely match, so the sealing performance of the ball valve is excellent. In addition, it has the characteristics of light opening and closing, small volume, and simple structure, In the closed state, ball valves are not easily eroded by the medium, so they are widely used in fields such as food, chemical, petroleum, and electricity


 

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Product Parameters

 

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Company Profile

Hebei Jiwei Valve Trading Co., Ltd. is a private joint-stock enterprise with independent legal personality and direct import and export rights. As a professional and high-quality supplier in the valve industry, it has a history of more than ten years. Our products mainly include GB/JB (China), DIN (Germany), Russian standards, API/ANSI (USA) and other standards. Diameter: DN 15 ~ DN 2000, pressure level: 0.25 ~ 10.0 Mpa, working temperature: -60 ~ 450 ºC.The main materials are gray cast iron, ductile cast iron, carbon steel, stainless steel and so on. Our main products include gate valves, globe valves, check valves, ball valves, butterfly valves, bottom valves, plug valves, Y-strainers, flanges, elbows, etc. Products are widely used in petroleum, chemical, electric power, construction, pharmaceutical, water supply and drainage and other fields. Our products have been exported to Russia, Ukraine, Pakistan, Kazakhstan, Malaysia, Belarus and other countries, and won the trust of customers and good reputation. Looking forward to the future, we sincerely hope that more foreign customers will cooperate with us to realize our common interests.
 

 

FAQ

Q:What are the advantages of welded ball valves

A:

1. The valve body structure is integrally welded and there will be no external leakage
.2. The valve seat is composed of a PTFE sealing ring and a spring. It has strong adaptability to pressure and temperature changes and will not cause any leakage within the range of use.
3. The anti-leakage structure of the valve stem. There is a PTFE self-sealing gasket and an O-ring at the bottom of the valve stem. There are 2 O-rings and two PTFE gaskets on the top to ensure no leakage.
4. The valve body material is the same as the pipe material, so there will be no uneven stress and no extrusion and deformation due to earthquakes and vehicles passing over the ground.
5. The valve body is light and easy to keep warm.
6. Directly buried ball valves can be buried directly underground. There is no need to build tall valve wells. Instead, only small shallow wells are needed on the ground, which greatly saves construction costs and engineering time.
7. 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.
8. The processing accuracy of the sphere is very precise and easy to operate without any adverse interference.
9. There are two connection methods: welding and flange.
10. Operation mode: handle, gear (vertical/horizontal)
11. Under normal operation and use of the valve, the warranty period is 20 years.