Fully Welded Ball Valve

Built for critical pipeline and transmission applications, the Fully Welded Ball Valve is designed to provide reliable isolation, long-term tight shut-off, and exceptional structural integrity under demanding operating conditions. Its fully welded body eliminates potential leakage paths associated with bolted body joints, providing enhanced resistance to external leakage, pipeline stresses, and environmental conditions. The robust construction makes it particularly suitable for high-pressure, high-temperature, and long-distance pipeline applications.

The Fully Welded Ball Valve is ideally suited for oil & gas, natural gas transmission, petrochemical, refinery, and other critical pipeline systems where safety, durability, and minimal maintenance are essential. Its compact and lightweight construction, combined with a reliable sealing system and corrosion-resistant design, provides dependable performance throughout extended service intervals.

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Technical Specifications

Product description:	Fully-Welded Ball Valve
Model:	Q967F-Fully-Welded Ball Valve
Nominal diameter:	NPS 2"～48"
Operating temperature:	-196℃～593℃(the range of service temperature may vary for different materials)
Operating pressure:	150-2500 CLASS
Material:	Main material: A105N;A182 F304、F304L、F316、F316L、A352 LF2、LF2, etc.
Design standard:	API 6D、ASME B16.34
Structural length:	ASME B16.10
Connecting end:	ASME B16.5、ASME B16.25
Test standard:	API 598、ISO 5208
Operation method:	Handle, worm, motor-drive unit, pneumatic drive unit
Application fields:	Oil and natural gas pipelines, and urban gas pipeline

Features & Benefits

High-performance quarter-turn valve delivering bubble-tight shutoff for demanding process industries.

Fully Welded Body Construction

Welded body design eliminates bolted body joints and significantly reduces potential external leakage paths.

High Structural Integrity

The continuous welded body provides excellent resistance to internal pressure, pipeline loads, and external environmental stresses.

Reliable Tight Shut-Off

Precision-engineered ball and seat sealing systems provide dependable isolation and long-term sealing performance.

High Pressure & Temperature Capability

Robust construction and optimized sealing components enable reliable operation under demanding pressure and temperature conditions.

Compact & Lightweight Design

The welded construction can reduce overall valve weight and installation requirements compared with conventional bolted-body designs.

Low Operating Torque

Optimized ball and seat design reduces friction and operating torque, allowing efficient manual or automated operation.

Excellent Corrosion Resistance

Suitable material selection and protective coatings help provide long-term resistance to corrosion in buried and exposed pipeline environments.

Reduced Maintenance Requirements

The welded body minimizes the number of external joints and reduces routine maintenance requirements over the valve's service life.

Pipeline Stress Resistance

The robust body construction is designed to withstand pipeline loads, vibration, and thermal expansion encountered in long-distance transmission systems.

Wide Range of Applications

Suitable for natural gas transmission, oil pipelines, gas gathering systems, petrochemical facilities, refineries, and other critical pipeline applications.

Application Scenario

Chemical Industry

Ball valves, butterfly valves, gate valves, globe valves, check valves, and control valves ensure safe fluid isolation, precise process control, and reliable operation in demanding chemical processing applications.

Oil Industry

Engineered for reliable isolation, flow regulation, and backflow prevention, our valve solutions support upstream, midstream, and downstream oil production and refining operations.

Natural Gas

Providing leak-tight sealing, dependable flow control, and safe pipeline operation for natural gas transmission, storage, LNG, and distribution systems.

Metallurgy

Built to withstand high temperatures, abrasive media, and harsh operating conditions in steelmaking, smelting, and metallurgical processing.

Power Generation

Ensuring reliable isolation, accurate flow control, and long-term performance in steam, boiler, turbine, and power plant systems.

Pharmaceutical

Delivering hygienic, precise, and contamination-free flow control for pharmaceutical manufacturing and clean process applications.

Steel Industry

Designed for high-temperature, high-pressure, and severe-service conditions in iron making, steelmaking, rolling mills, and auxiliary process systems.

New Energy

Supporting hydrogen, LNG, carbon capture, battery materials, and renewable energy projects with advanced valve solutions for safe and efficient process control.