Stainless Steel Ball Valves

What is a ball valve used for?

A ball valve is a quarter-turn isolation valve used to stop, start or direct the flow of gases and liquids in instrumentation, process and industrial systems. Ball valves are widely used where reliable shut-off is required, including high-pressure service, corrosive applications and air distribution systems.

Why choose Fluidline ball valves?

• Fluidline Group range from ¼ inch to 10 inch flanged valves; confirm Zambian availability with FSZ
• SS316 stainless steel as standard
• BSP & NPT threaded options
• ISO 5211 actuator-ready designs
• High-pressure solutions up to 7,500 PSI
• Fire-safe, vented and special alloy options
• Certification and testing documentation available on request, subject to product and order requirements

Why Ball Valve Selection Matters

Ball valves are often viewed as simple isolation devices, yet selecting the correct valve type, pressure rating, seat material and connection configuration can significantly influence system reliability, maintenance requirements, safety and long-term operating performance.

Different applications require different valve designs. Factors such as pressure, temperature, media compatibility, actuation requirements and maintenance access should be considered during valve selection to ensure reliable service life and system integrity.

Ball Valve Types and Configurations

Fluidline supplies a comprehensive range of ball valves including:

• 1 piece, 2 piece and 3 piece threaded ball valves
• 3 way and 4 way ball valves
• Direct mount ISO 5211 valves
• Flanged ball valves (ANSI150 / ANSI300)
• High pressure and ultra-high-pressure ball valves
• Vented ball valves for air header manifolds
• Special alloy and high temperature valves

Stainless Steel Threaded Ball Valves

Fluidline threaded ball valves are manufactured in SS316 stainless steel with R-PTFE seats for corrosion resistance and leak-free performance. Available in BSP and NPT threads, these valves are suitable for instrumentation systems, gas service, liquid systems and general industrial isolation.

Vented Ball Valves for Air Header Systems

Vented ball valves are designed for use on air header manifolds and distribution systems, where trapped pressure must be safely relieved. These valves prevent back pressure from being directed into the system, improving safety during maintenance and operation.

High Pressure Ball Valves

Fluidline offers high-pressure ball valves rated from 2,160 PSI to 7,500 PSI, with materials including SS316 and WCB. Seat options include PEEK, TFM and Delrin, making these valves suitable for demanding industrial service conditions.

Flanged, Fire-Safe and Special Alloy Ball Valves

• Flanged valves: ANSI150 and ANSI300 options
• Fire-safe valves: API 607 compliant
• Special alloys: 904L, Duplex, Super Duplex, Hastelloy, Monel
• Metal seat valves: for high temperature service

Certification and Quality Assurance

Fluidline ball valves undergo testing to recognised industry standards including API 598, API 6D and API 607 where applicable. Material traceability, pressure testing and certification options are available to support industrial, EPC and project quality requirements.

Typical Applications

• Instrumentation systems
• Process plants
• Gas and fluid systems
• Air header manifolds
• Mining and power plants
• Chemical and petrochemical industries

Need Help Selecting a Ball Valve?

Fluidline supports customers with selecting the correct valve based on pressure rating, media compatibility, temperature, connection type and application requirements.

Whether you require a threaded instrumentation valve, flanged process valve, vented air header valve or high-pressure isolation valve, our team can assist with selecting the most suitable solution for your application.

Pressure ratings, materials and certifications depend on the selected valve model and operating temperature. Confirm the applicable datasheet and documentation with FSZ when ordering.

Frequently Asked Questions