Fully Welded Ball Valve

LYV® is a professional China Fully Welded Ball Valve manufacturer The valve body of this type is completely welded without bolted connection. As a result, the all-welded body ball valve provides excellent sealing performance with virtually no external leakage, making it particularly suitable for piping systems where safety and reliability are highly required.

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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 us to discuss your specific needs, and we will tailor a ball valve solution that meets your unique requirements.

The main advantages of this Fully Welded Ball Valve lie in its robustness and extremely high sealing reliability. Due to the fully welded structure of the valve body, this Industrial Fully Welded Ball Valve eliminates the potential leakage points that may exist in traditional bolt connections, ensuring that the valve can maintain long-term stability even in high-pressure, vibration, or environments with significant temperature variations. This High-performance Fully Welded Ball Valve is highly suitable for direct underground installation or for critical projects such as urban heating and natural gas transportation where regular maintenance is not allowed, effectively reducing long-term maintenance costs and safety risks.

Specifications

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:

ASTM A182 F316;ASTM A105+ENP;ASTM A350 LF2+ENP

Seat Materials:

PTFE

Stem Materials:

ASTM A182 F6A/F316

Design & Manufacture Standard:

API 6D

Face-to-face Standard:

ASME B16.10/ EN558-1

End Connection Standard:

ASME B16.5/ ASME B16.25

Test & Inspection Standard:

API 598

Features

■ 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.

What's the Application scenario of fully welded ball valves?

Typical use cases for fully welded ball valves are in critical infrastructure and industrial systems where safety, tightness, and maintenance-free operation are critical over long periods of time, such as oil and gas delivery pipelines, chemical control systems, urban heating systems, and the food and pharmaceutical industries.

Why choose LYV®️ valves:

●Strong production capabilities

With over 30 years of professional manufacturing experience in ball valves, a 13,000-square-meter production base and over 50 advanced CNC machines, we provide a solid foundation for efficient delivery and stable quality.

●International authoritative certification

Strictly adhering to the ISO9001 quality management system, the core products have obtained key certifications such as API 607/6FA/6D and CE for fire safety, industrial applications, and international market access, ensuring the reliability and compliance of the products.

●Reliable delivery guarantee

Full control throughout the production and transportation process. Valves are professionally protected and packaged using bubble bags, custom wooden boxes, and reinforced structures, and are painted with clear labels to ensure the products arrive at your site intact.