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Fully Welded Ball Valve
  • Fully Welded Ball ValveFully Welded Ball Valve

Fully Welded Ball Valve

LYV® fully welded ball valves are precisely engineered to ensure superior quality and performance. Our stringent manufacturing processes and quality control measures result in products that outperform similar offerings in the industry. In addition, they fulfil the fire protection criteria outlined in API 6FA and are appropriate for a diverse range of applications that necessitate fire protection.

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Product Introduction

LYV® fully welded ball valves feature high quality sealing solutions that allow them to operate reliably in high pressure, high temperature environments.  The fully welded design eliminates the potential leakage problems associated with traditional ball valves and improves the overall sealing performance of the valve.  Whether in harsh industrial environments or severe service conditions, they provide long-lasting, reliable sealing performance.Please contact our dedicated sales team to discuss your specific needs, and we will tailor a ball valve solution that meets your unique requirements.


Size Range: 

NPS 1/2”-8”; DN15-DN200

Nominal Pressure: 

150LB-600LB; PN16-PN100

Temperature Range:

-46℃~250℃(depends on design and material)

End Connections: 

Flange; Butt-weld

Body Materials: 

ASTM A105; ASTM A350 LF2; ASTM A182 F316

Ball Materials: 


Seat Materials: 


Stem Materials: 

ASTM A182 F6A/F316

Design & Manufacture Standard: 


Face-to-face Standard: 

ASME B16.10/ EN558-1

End Connection Standard: 

ASME B16.5/ ASME B16.25

Test & Inspection Standard: 

API 598


■  Fully welded design.

■  compact size, and lightweight design.

■  Anti blow-out stem design.

■  Fire-safe and anti-static design.

■  Low flow resistance.

What is fully welded ball valve:
The fully welded ball valve is a ball valve that is specially designed and differs significantly from traditional ball valves. Its most notable feature is that the valve body is connected to the enclosed ball through full welding instead of the conventional flange connection.

Applicable occasions of fully welded ball valves:
Fully welded ball valves are commonly used in various industries, including oil and gas transmission pipelines, chemical control systems, city heating systems, as well as the food and pharmaceutical industries.

Why choose LYV®️ valves:
We produce ball valve for over 30 years. The workshop covers 13000 square meters and own more than 50 advanced CNC machines. Our engineers & production team will make sure your order delivers with high-quality and fastest time. We also care about valve shipping. The valves will wrap by bubble pouches or paper to ensure the paint will not be damaged. We also fixed valve by plywood stick after we put valve into the box. The plywood case will be painted with necessary marking to make sure the valve will not be damaged during shipping.

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