Split Body Wafer Butterfly Valve – PTFE Seat, OEM Manufacturer

Product Overview

What makes a split body wafer butterfly valve different? Its body comes in two halves, bolted together around the disc and seat. That means you can reach the internals—inspect, maintain, or replace the seat—without pulling the valve out of the line. For industries like chemical processing and pharmaceuticals, where PTFE seating is often required for corrosion resistance and purity, this kind of easy access is a real advantage.

This model pairs that split body design with a PTFE seat, a stainless steel disc and stem, and a lightweight aluminum handle—simple, reliable, and built for demanding service. As a direct OEM/ODM manufacturer with over 19 years of export experience, Tianjin Worlds Valve Co., Ltd. customizes materials, sizes, pressure ratings, flange standards, coatings, and actuators to your exact needs. We're ISO 9001 certified (LRQA), CE, UKCA, WRAS, and ACS compliant, and we export to more than 50 countries.

Introduce:

Split Body Wafer Butterfly Valve |PTFE Seat | DI Body | CF8M Disc | OEM Manufacturer

Tianjin Worlds Valve Co., Ltd.–Your Reliable Source for Durable, Cost-Effective Flow Control

CBF05-TA04 - Detailed Product Info

Technical Specifications

This model is configured with the following parameters. Please note that every item listed below is customizable to your specific needs.

Key Features & Advantages

1. Split Body Design–Easy Access & Maintenance

• Two-Piece Construction–The valve body is split into upper and lower halves, bolted together around the disc and seat assembly. This design allows direct access to internal components without removing the valve from the pipeline.

• Simplified Seat Replacement–When the PTFE seat requires replacement, simply unbolt and separate the two body halves, remove the old seat, install the new one, and reassemble. No need to disconnect the valve from the pipeline or disturb adjacent piping.

• Reduced Downtime–Maintenance that would otherwise require full valve replacement can be completed in minutes with basic tools, significantly reducing downtime and maintenance costs.

• Inspection Access–The split body design allows visual inspection of the disc, seat, and stem without removing the valve from the line–ideal for preventive maintenance programs.

2. PTFE Seat–Superior Chemical Resistance

• Excellent Chemical Resistance–PTFE is resistant to virtually all industrial chemicals, including strong acids, alkalis, solvents, and oxidizers. It is the material of choice for aggressive media where elastomer seats would degrade.

• Wide Temperature Range–PTFE maintains its sealing properties from -29°C to +160°C(with short-term capability up to +200°C), covering a broader range than EPDM or NBR seats.

• Low Friction–PTFE has one of the lowest coefficients of friction of any solid material, reducing operating torque and ensuring smooth disc movement.

• Non-Stick Surface–The non-stick PTFE surface prevents media buildup and simplifies cleaning–particularly important in pharmaceutical, food, and high-purity applications.

• Bubble-Tight Shut-Off–The PTFE seat provides reliable bi-directional sealing, ensuring zero leakage in both flow directions.

3. Body Material–Ductile Iron A536 65-45-12

• High Strength–A536 65-45-12 offers tensile strength of ≥448 MPa and yield strength of ≥310 MPa, providing reliable performance under PN16 pressure surges.

• Excellent Impact Resistance–The nodular graphite structure delivers exceptional toughness, withstanding mechanical shock and pipeline vibration without fracturing.

• Corrosion Protection–Combined with standard epoxy coating (250μm minimum), the body resists corrosion in water, wastewater, and general industrial service.

4. Disc Material–CF8M Stainless Steel (AISI 316)

• Superior Corrosion Resistance–CF8M offers excellent resistance to pitting and crevice corrosion, particularly in chloride environments, seawater, and aggressive media.

• Wide Chemical Compatibility–Suitable for water, wastewater, mild chemicals, acids, and alkalis.

• Long Service Life–The corrosion-resistant properties of CF8M ensure extended service life even in aggressive environments.

5. Stem Material–17-4PH Stainless Steel (AISI 630)

• High Strength–17-4PH is a precipitation-hardening stainless steel offering tensile strength of 1,100–1,300 MPa–significantly higher than SS420, SS431, or 304/316 stainless steel.

• Superior Corrosion Resistance–17-4PH provides excellent resistance to corrosion and stress corrosion cracking, outperforming standard martensitic stainless steels in aggressive environments.

• Excellent Fatigue Resistance–The alloy maintains its mechanical properties under cyclic loading, ensuring long-term reliability in high-cycle applications.

• Blow-Out Proof Design–Retention mechanism prevents accidental stem ejection under pressure surges.

6. Aluminum Handle–Lightweight & Ergonomic

• Reduced Weight–Aluminum is significantly lighter than cast iron or ductile iron handles, reducing overall valve weight and making installation and operation easier.

• Corrosion Resistant–Aluminum naturally forms a protective oxide layer that resists corrosion, making it suitable for outdoor and humid environments.

• Ergonomic Design–The smooth surface and balanced design provide comfortable grip and easy operation, even after extended use.

• Locking Plate Included–The handle features a locking plate for position locking, preventing accidental operation and ensuring safe maintenance.

7. ISO 5211 Top Flange–Ready for Automation

All our split body wafer butterfly valves feature a standard ISO 5211 top flange, providing universal interchangeability for various actuation methods:

• Hand Lever–Quick manual on-off control with locking plate (standard for this model)

• Gear Operator–Self-locking with open-close indicator (larger sizes)

• Electric Actuators–On-off or modulating types with 4-20 mA feedback

• Pneumatic Actuators–Double-acting or spring-return (fail-safe) designs

• Hydraulic Actuators–High-torque, subsea, or explosive environments

Typical Applications

Split body wafer butterfly valves with PTFE seat, CF8M disc, and 17-4PH stem are trusted across a wide range of industries:

• Chemical Processing Acids, alkalis, solvents, and aggressive media–PTFE seat resists chemical attack

• Pharmaceutical Manufacturing High-purity processes, CIP/SIP systems–non-stick PTFE simplifies cleaning

• Food & Beverage Sanitary applications where product purity is critical

• Water Treatment Chemical dosing, chlorine, ozone systems

• Power Generation Cooling water, chemical injection, steam condensate

• Pulp & Paper Bleaching chemicals, corrosive liquors

• Semiconductor Ultra-pure water and chemical distribution

• Marine & Offshore Seawater cooling, ballast water systems

Why Choose Tianjin Worlds Valve?

• Quality you can trust. Our ISO 9001:2015 certification is issued by LRQA, one of the world's most respected certification bodies. Every valve comes with material certificates and pressure test reports–no exceptions.

• Split Body Specialists. We have extensive experience manufacturing split body butterfly valves for chemical, pharmaceutical, and industrial projects worldwide. Our two-piece design simplifies maintenance and extends service life.

• PTFE Seating Expertise. Our PTFE seats provide superior chemical resistance and high-temperature capability compared to elastomer seats–ideal for aggressive media and high-purity applications.

• 17-4PH Stem Advantage. Our 17-4PH stems offer significantly higher strength and corrosion resistance than standard stainless steels–ensuring reliable torque transmission and long-term durability.

• Full Customization. Materials, sizes, pressure ratings, flange standards (ANSI, DIN, JIS, BS), coatings (any RAL color), actuators–all tailored to your specification.

• 19+ Years Export Experience. Smooth logistics and after-sales support to 50+ countries across Europe, Americas, Middle East, and Southeast Asia.

• 100% Traceability. Material certificates and pressure test reports with every order – no exceptions.

• Quick Turnaround. Dedicated project manager; typical lead time 20–30 days. Factory visits welcome in Tianjin.

Get in Touch–Customize Your Split Body Valve Today:

Whether you need this split body wafer butterfly valve configuration with PTFE seat, a different size or pressure rating, or a complete valve package for a large-scale project–we're ready to build to your specification.

Send us your requirements:

• Required size and pressure rating

• Media type and operating temperature

• Preferred material combination (body / disc / seat / stem)

• Actuator type (manual, gear, electric, pneumatic, hydraulic)

• Flange standard and drilling (ANSI, DIN, JIS, BS)

• Coating color (any RAL)

• Target quantity and destination port

Our team will respond within 24 hours with a quotation and engineering proposal.

Factory visits welcome–come see how we manufacture your valves in Tianjin, China.

Contact Us Now and Let's Build Your Valve Together.