Wafer Type Lined Ball Valves

Overview

Anhui Xinfulong‘s Wafer Type Lined Ball Valves are engineered for applications where space is at a premium and corrosion resistance is paramount. Unlike traditional flanged ball valves with integral flanges, our wafer design is installed by clamping the valve between two pipe flanges using long bolts that pass through the entire assembly. This eliminates the need for integrated flange necks on the valve body, resulting in a significantly more compact, lighter, and cost-effective solution.

The valve 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 floating ball construction, provides exceptional resistance to strong acids, alkalis, organic solvents, and ultra-pure chemicals, making it the ideal choice for corrosive and high-purity applications where metal valves fail.

Available in manual, pneumatic, or electric actuation configurations-, our wafer type lined ball valves offer versatile flow control solutions for semiconductor, wet chemical, pharmaceutical, and chemical processing industries.

Key Features

Ultra-Compact, Space-Saving Design

• Occupies significantly less face-to-face length than flanged valves

• Ideally suited for densely packed piping systems, process plants, offshore platforms, and HVAC installations where space is constrained

• Eliminates integrated flange necks, reducing both weight and material usage

• Lightweight construction reduces overall stress on piping supports

Superior Corrosion Resistance

• Full fluoropolymer lining (PFA/FEP/PTFE) on all wetted parts — inner cavity, ball, and stem — completely isolates the metal body from the process medium

• Chemically inert to virtually all acids, alkalis, solvents, and aggressive chemicals

• PFA coating prevents chemical interaction that could corrode the valve body and release contaminants into the process fluid

• Translucent, high-purity grade body — safe from chemical reactions and impurity effluents

Bubble-Tight Sealing Performance

• Floating ball design with PTFE or reinforced PTFE seats ensures zero leakage (soft seal)

• Unique elastic lip-type seat design provides high sealing performance across wide pressure and temperature differentials

• Self-adjusting seat design: at low medium pressure, contact area is smaller for higher sealing pressure; at high pressure, contact area increases to prevent seat damage

• Low friction coefficient between ball and seal minimizes operating torque

Floating Ball Construction

• One-piece design with floating ball type construction

• Available in full bore or reduced bore configurations

• Simple structure with only a few parts, ensuring reliable operation and easy maintenance

Full Bore Flow Design

• Straight-through flow path minimizes pressure drop and medium residue

• Prevents crystallization and blockage common in chemical processing

• Maximum flow capacity — ideal for high-flow applications

Blow-Out Proof Stem

• Precision-engineered stem design prevents accidental ejection under pressure

• Ensures safe operation in high-pressure and hazardous applications

Low Maintenance & Long Service Life

• Simple, robust construction with minimal components

• Non-stick surface properties prevent scale and sludge buildup

• Easy to operate — low friction coefficient reduces actuation force

Technical Specifications

Applications

Our Wafer Type Lined Ball Valves are widely deployed across industries requiring compact, corrosion-resistant, and high-purity flow control:

Semiconductor Manufacturing

• High-purity chemical distribution systems

• Wet etching and wafer cleaning processes

• Ultra-pure water (UPW) systems

• CMP slurry delivery

Wet Electronic Chemicals

• Transfer and control of high-purity acids, solvents, and etchants

• Chemical blending and distribution systems

• High-purity reagent feed lines

Chemical & Petrochemical Processing

• Handling of strong acids (sulfuric, hydrochloric, nitric, acetic acid)

• Caustic soda and alkaline solutions

• Organic solvents and oxidizing media

• Pickling and plating lines

Pharmaceutical & Biotech

• High-purity fluid transfer with zero contamination risk

• Solvent and reagent delivery systems

• FDA-compliant processing lines

New Energy

• Battery chemical processing and electrolyte handling

• Photovoltaic wet processing lines

Food & Beverage

• Sanitary fluid and gas transport

Why Choose Xinfulong Wafer Type Lined Ball Valves?

• Significant Space & Weight Savings — The wafer design eliminates integrated flange necks, occupying less face-to-face length and weighing significantly less than equivalent flanged valves

• Cost-Effective Solution — Uses less material during manufacturing, resulting in a lower purchase cost than equivalent flanged valves

• 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

• Ultra-High Purity — PFA lining meets the purity standards required in semiconductor manufacturing

• Zero Leakage Performance — Bubble-tight sealing with PTFE seats ensures zero leakage, critical for environmental safety and product purity

• Cleanroom Manufacturing — Critical production processes carried out in Class 1000/10,000 cleanrooms, ensuring the highest levels of purity

• Industry-Leading Expertise — Backed by decades of fluoropolymer processing experience and R&D collaboration with Japanese and Korean experts

• Proven Global Track Record — Trusted by clients across Europe, Japan, Korea, Taiwan (China), and beyond

• Comprehensive Quality Assurance — ISO 9001, ISO 14001, ISO 45001 certified with full in-house testing capabilities

• End-to-End Service — From custom design and material selection to manufacturing, testing, and after-sales support

Important Design Considerations

When selecting a wafer type ball valve, please note:

• Not for End-of-Line Use — Wafer valves cannot be used as end-of-line valves, as they may fall off if the downstream flange is removed

• Requires Both Flanges — The valve always requires both pipe flanges to be present to maintain sealing integrity

• Medium Pressure Range — Wafer designs are best suited for low- to medium-pressure systems

• Installation Requires Precise Flange Alignment — Proper sealing depends on uniform tightening of the bolt assembly

Customization Options

We offer fully customizable wafer type lined ball valves to meet your specific requirements:

• Valve sizes from DN15 to DN200

• Lining materials: PFA, FEP, or PTFE

• Body materials: cast steel, stainless steel (SS304/316)

• Actuation options: manual handle, pneumatic actuator (double-acting or spring-return), or electric actuator-

• Connection standards: ASME, JIS, DIN, GB

• Full bore or reduced bore configurations

• Special trim materials and configurations