Overview
Anhui Xinfulong's Pneumatic Lined Ball Valves are engineered for automated flow control in the most demanding corrosive and high-purity applications. Combining the simplicity and reliability of a quarter-turn ball valve with the speed and precision of a pneumatic actuator, our lined ball valves deliver fast, repeatable, and fail-safe operation in semiconductor, wet chemical, pharmaceutical, and chemical processing environments.
The valve body features a full fluoropolymer lining — available in PFA, FEP, or PTFE — that completely isolates the metal body from the process medium. This fully lined design, combined with a precision-molded lined ball and stem unit, provides exceptional resistance to strong acids, alkalis, organic solvents, and ultra-pure chemicals, making it the ultimate solution for pipelines where metal valves fail.
Available with double-acting or spring-return pneumatic actuators, our valves can be integrated into automated control systems with solenoid valves, positioners, and limit switches for remote on/off or modulating control.
Key Features
Superior Corrosion Resistance
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Full fluoropolymer lining (PFA/FEP/PTFE) on all wetted parts — inner cavity, ball, and stem — completely isolates the metal body from the process medium
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Chemically inert to virtually all acids, alkalis, solvents, and aggressive chemicals
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Safe from chemical reactions and impurity effluents — translucent, high-purity grade body
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Exceptional heat resistance with a wide service temperature range
Full Bore Flow Design
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Full-port straight-through flow path minimizes pressure drop and medium residue
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Prevents crystallization and blockage common in chemical processing
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Maximum flow capacity — ideal for high-flow and viscous media applications
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Can be used for pipeline pigging and cleaning
Reliable Pneumatic Automation
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Powered by heavy-duty rack-and-pinion pneumatic actuators (double-acting or spring-return)
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Provides high torque needed to operate lined valves reliably, even after long periods of inactivity
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Fast and repeatable operating times for automated processes
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Compact structure with reliable sealing and convenient maintenance
Bubble-Tight Sealing
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Unique elastic lip-type seat design ensures high sealing performance across wide pressure and temperature differentials
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Integral ball and stem design (or precision-lined ball) works with PTFE seats to ensure zero leakage
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Reduced friction coefficient between ball and seal minimizes operating torque
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Self-adjusting seat design: when medium pressure is low, contact area is smaller for higher sealing pressure; when pressure is high, contact area increases to prevent seat damage
Anti-Static Design (Optional)
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Anti-static device discharges potential static charge accumulation on the ball caused by friction
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Prevents sparks in flammable solvent pipelines
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Spring between ball, stem, and valve body provides a continuous conductive path to ground
Blow-Out Proof Stem
Low Maintenance & Long Service Life
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Simple, robust mechanics with minimal electrical components
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Non-stick surface properties prevent scale and sludge buildup
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Easy to operate — low friction coefficient reduces actuation force
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Available in PTFE-coated or stainless steel actuators for demanding environments
Technical Specifications
Actuator Options
Applications
Our Pneumatic Lined Ball Valves are widely deployed across industries requiring corrosion-resistant, high-purity, and automated flow control:
Semiconductor Manufacturing
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High-purity chemical distribution systems
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Wet etching and wafer cleaning processes
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Ultra-pure water (UPW) systems-
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CMP slurry delivery
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Chemical mechanical planarization
Wet Electronic Chemicals
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Transfer and control of high-purity acids, solvents, and etchants
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Chemical blending and distribution systems
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High-purity reagent feed lines
Chemical & Petrochemical Processing
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Handling of strong acids (sulfuric, hydrochloric, nitric, hydrofluoric)
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Caustic soda and alkaline solutions
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Organic solvents and aggressive media
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Pickling and plating lines
Pharmaceutical & Biotech
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High-purity fluid transfer with zero contamination risk
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Solvent and reagent delivery systems
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FDA-compliant processing lines
New Energy
Food & Beverage
Water & Wastewater Treatment
Why Choose Xinfulong Pneumatic Lined Ball Valves?
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Superior Corrosion Protection — Full fluoropolymer lining (PFA/FEP/PTFE) on all wetted parts provides chemical resistance superior to expensive alloys and far outlasts standard stainless steel valves in corrosive lines
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Zero Leakage Performance — Bubble-tight sealing with elastic lip-type seat design and precision-lined ball ensures zero leakage, critical for environmental safety and product purity
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Reliable Automation — Heavy-duty pneumatic actuators with ISO 5211 mounting provide the high torque needed for reliable operation, even after long periods of inactivity
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Anti-Static Safety — Optional anti-static design prevents sparks in flammable solvent pipelines
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Cleanroom Manufacturing — Critical production processes carried out in Class 1000/10,000 cleanrooms, ensuring the highest levels of purity
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Industry-Leading Expertise — Backed by decades of fluoropolymer processing experience and R&D collaboration with Japanese and Korean experts
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Proven Global Track Record — Trusted by clients across Europe, Japan, Korea, Taiwan (China), and beyond
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Comprehensive Quality Assurance — ISO 9001, ISO 14001, ISO 45001 certified with full in-house testing capabilities
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End-to-End Service — From custom design and material selection to manufacturing, testing, and after-sales support
Customization Options
We offer fully customizable pneumatic lined ball valves to meet your specific requirements:
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Valve sizes from DN15 to DN400
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Lining materials: PFA, FEP, or PTFE
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Body materials: cast steel, stainless steel, or ductile iron
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Connection types: flanged (ANSI, DIN, JIS, GB), wafer, threaded
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Actuator options: double-acting or spring-return (fail-close/fail-open)
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Control options: on/off (solenoid) or modulating (positioner)
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Feedback devices: limit switches, position transmitters
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Anti-static design
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Special trim materials and configurations
