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Full Welded Ball Valve

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Product Introduction：
Fully Welded Ball Valves are precision-engineered components designed for reliable fluid control in demanding pipeline applications. Their fully welded structure ensures exceptional strength and a zero leakage performance, making them a superior choice for industries where safety and durability are critical.

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Product Details

Shield™ Fully Welded Ball Valve - Complete Assembly

Shield^TM Fully Welded Ball Valve - Engineered for maximum durability and zero leakage

Product Overview

The valve bodies utilize carbon steel or stainless steel materials that match pipeline composition, preventing stress unevenness and ensuring compatibility. Specialized versions include buried service fully welded ball valves for direct underground installation without expensive valve pits, significantly reducing construction costs.

The fully welded ball valve is constructed with a one-piece full welding design that eliminates potential leakage points common in bolted assemblies. This welded body provides outstanding resistance to external stress, including those caused by earth movements or vibrations, ensuring long service life and minimal maintenance.

General Type Full Welded Ball Valve

Underground Full Welded Ball Valve

Features and Benefits

These valves are engineered for zero leakage operation, achieved through advanced sealing systems often utilizing carbon reinforced PTFE rings and spring-loaded mechanisms. This design maintains a tight seal even under fluctuating pressure and temperature conditions, with many models capable of handling temperatures from -29℃ to 200℃.

Maintenance-Free Operation

No requirement for regular adjustment or lubrication, reducing lifecycle costs.

Easy Installation

Weight reduction compared to cast steel alternatives simplifies installation.

Corrosion Resistance

Anti-static design with superior corrosion resistance for enhanced safety.

Anti-Blowout Stem

Robust stem construction prevents operational failures under high pressure.

Excellent Performance Stability

Consistent operation even in harsh environments and extreme conditions.

Zero Leakage Design

One-piece full welding eliminates potential leakage points for maximum reliability.

Key Advantages Over Traditional Valves

Maintenance-free operation with no requirement for regular adjustment or lubrication
Easy installation with weight reduction compared to cast steel alternatives
Corrosion resistance and anti-static design for enhanced safety
Anti-blowout stem construction preventing operational failures
Excellent performance stability even in harsh environments

Industrial Applications

With their robust construction and reliable operation, fully welded ball valves deliver long-term dependable performance across numerous industrial applications, providing a cost-effective solution for modern pipeline infrastructure needs.

These valves serve critical functions across multiple sectors:

City Gas Supply Networks

Main lines and distribution pipelines for urban gas distribution systems.

Central Heating Systems

Large-scale heat supply equipment and district heating networks.

Petrochemical Industry

Processes requiring reliable shut-off devices and fluid control.

Steel Plants

Fluid pipelines, exhaust emission pipelines, and fuel supply systems.

Thermal Power Stations

Various industrial heating pipelines and steam systems.

Water Treatment Facilities

Main water supply lines and distribution networks.

Valve Construction & Components

Below is a detailed breakdown of the key components that ensure the reliability and performance of our fully welded ball valves.

Cross-sectional diagram of fully welded ball valve with gear 12in 150lb with butt welded end

A Body: Seamless pipe and solution annealed/normalized for the highest quality and additional strength.

B Ball: Precision machined and mirror finished for bubble-tight shutoff and less operating torque.

C Stem: Internal entry and blowout proof for maximum safety.

D Seat: Ensures a reliable positive shut-off in either flowing direction, bubble-tight sealing with low operating torque.

E Bonnet: Full welded by seamless pipe for maximum integrity.

F O-Ring: Graphite stem seals have been thoroughly fire tested and ensure positive sealing.

G Gland: Designed to ensure optimal seal performance under varying conditions.

H Injection Fitting: Used for routine lubrication of the body cavity and injection of emergency sealant to reduce torque and extend service life.

I Trunnion: Heavy-duty support for stable operation under high pressure conditions.

The fully welded design provides exceptional strength and eliminates potential leak paths that can occur in bolted or threaded connections. This makes Shield™ fully welded ball valves ideal for critical applications where reliability and zero leakage are paramount.

Shield^TM is a professional manufacturer of industrial valves including fully welded ball valves, trunnion ball valves, floating ball valves, and resilient seated butterfly valves. Our fully welded ball valves offer superior performance in pipeline systems across oil & gas, petrochemical, power generation, water treatment, and municipal infrastructure applications.

Technical Drawings & Resources

Download detailed technical drawings, product brochures, and specifications for our valves. These resources provide comprehensive information for engineers, procurement specialists, and maintenance teams.

?Technical Drawings

Complete set of detailed engineering drawings in PDF format for easy integration into your design projects. Includes dimensional drawings, assembly diagrams, and installation guidelines.