China Butterfly Valve Manufacturer
XINTAI manufactures wafer, eccentric, and PTFE-lined butterfly valves with API-certified quality for global industrial applications since 1998.
Butterfly Valve Product Range by Design
XINTAI butterfly valves are categorized by sealing structure and eccentric design, including Centerline, Double Eccentric, and Triple Eccentric butterfly valve solutions.
Centerline Butterfly Valves
Flanged Butterfly Valve
Flanged connection butterfly valve designed for stable installation in industrial pipelines.
Wafer Butterfly Valve
Compact wafer design for space-saving installation and general isolation applications.
WCB Wafer Butterfly Valve
Carbon steel butterfly valve suitable for industrial media and demanding pipeline systems.
PTFE Lined Butterfly Valve
Chemical-resistant lined butterfly valve for corrosive media handling.
Lug Butterfly Valve
Lug connection design for reliable isolation and maintenance-friendly applications.
Centerline PTFE Flanged Butterfly Valve
Centerline structure combined with PTFE lining for corrosion-resistant service.
Double Eccentric Butterfly Valves
High Performance Butterfly Valve
Double eccentric design reduces friction and improves sealing performance for higher-pressure applications.
Double Eccentric Butterfly Valve
Advanced eccentric structure minimizes seat wear and provides stable shut-off for industrial applications.
Triple Eccentric Butterfly Valves
Stainless Steel Triple Eccentric Butterfly Valve
Metal-seated triple eccentric valve designed for high-temperature and severe service.
Stainless Steel Triple Eccentric Flanged Butterfly Valve
Flanged triple offset design for reliable shut-off under demanding conditions.
Triple Eccentric Hard Seal Butterfly Valve
Metal hard sealing structure designed for high-temperature, high-pressure and critical service applications.
How to Choose the Right Butterfly Valve
Choose the valve type, body and sealing materials, and operating method according to media, pressure, temperature, and service conditions.
1. Choose the Valve Type
- Wafer type: general isolation and lower-pressure service
- Double eccentric: medium- to higher-pressure throttling duty
- Triple offset: high-pressure, high-temperature, and severe service
2. Match Media, Pressure & Temperature
- Confirm media composition, viscosity, solids, and corrosiveness
- Match pressure rating and temperature range to system conditions
- Verify pipeline size, flow requirements, and connection standards
3. Select Body, Seat & Seal Materials
- Ductile iron: water treatment and general industrial service
- WCB carbon steel: oil & gas and general process applications
- CF8/CF8M stainless steel: chemical and corrosion-resistant service
- Duplex SS, aluminum bronze, or titanium: seawater and severe corrosive service
- EPDM/NBR for water, oil, and gas; PTFE/PFA/FKM for chemicals and higher temperatures; metal seals for severe high-temperature duty
4. Choose the Operating Method
- Manual lever or gear operators for lower-frequency operation
- Pneumatic or electric actuators for automated, remote, or high-cycle duty
- Confirm actuator torque, control signal, and fail-safe requirements where applicable
Butterfly Valve Technical Specifications
XINTAI butterfly valves are engineered to API, ASME, DIN, EN, and ISO standards across a wide range of sizes, pressure classes, and materials.
| Parameter | Centerline | Double Eccentric | Triple Offset |
|---|---|---|---|
| Size Range | DN50–DN1200 (2″–48″) | DN50–DN1500 (2″–60″) | DN50–DN1500 (2″–60″) |
| Pressure Rating | Class 150, PN6–PN16 | Up to Class 300, PN6–PN25 | Class 150–600, PN6–PN100 |
| Body Material | Ductile iron, CF8/CF8M | WCB, CF8/CF8M, ductile iron | WCB, CF8/CF8M, duplex SS |
| Seat / Seal | EPDM, NBR, PTFE, FKM | PTFE, RPTFE, metal-assisted | Metal-to-metal |
| Temperature Range | -20°C to +180°C | -29°C to +260°C | -46°C to +600°C |
| Design Standard | API 609, EN 593, MSS SP-67 | API 609, MSS SP-67, GB/T 12238 | API 609, ASME B16.34 |
| End Connection | Wafer, lug, flanged | Wafer, lug, flanged | Flanged, lug, butt-weld, Wafer |
| Best For | Water treatment, HVAC, food processing | Oil & gas, general process throttling | Steam, power generation, severe service |
Connection Types & Standards
- Wafer, lug, flanged, and butt-weld end configurations
- Flange standards: ANSI/ASME B16.5, DIN EN 1092-1, JIS B2220
Face-to-Face & Testing Standards
- Face-to-face per ISO 5752 and EN 558 series 20
- Pressure and leakage testing per API 598, ISO 5208, EN 12266-1
Butterfly Valves for Industrial Applications
Trusted butterfly valves serving 50+ countries and 60+ industrial projects worldwide.
Oil & Gas
Double eccentric, triple offset, and API 609 valves for pressure control and pipeline isolation.
Water & Wastewater
Wafer-type valves with EPDM seats for treatment plants, water supply, and large-diameter pipelines.
Chemical & Corrosive Media
PTFE and PFA-lined valves for acids, alkalis, chlorine, and other aggressive process media.
Power Generation & Steam
Triple offset, metal-seated valves for high-temperature steam, flue gas, and power plant systems.
Marine & Seawater
C95800 and C63200 bronze alloy valves engineered for marine corrosion resistance.
LNG & Special Service
Cryogenic and special-service valve selection based on minimum design temperature and project specification.
Butterfly Valve Standards & Certifications
XINTAI butterfly valves are designed, manufactured, and tested to internationally recognized standards, supporting vendor approval on major EPC projects.
Custom Butterfly Valve Solutions & OEM Support
Beyond standard catalog products, XINTAI supports OEM and ODM butterfly valve manufacturing tailored to project specifications.
Custom Sizes, Materials & Pressure Ratings
- DN50–DN1500 (2″–60″), PN6–PN100, Class 150–600
- Ductile iron, carbon steel WCB, CF8/CF8M, C95800, C63200, and titanium body options
Custom Seats, Linings & Actuators
- EPDM, NBR, PTFE, PFA, FKM/Viton, and metal sealing configurations
- Pneumatic and electric actuator packages, ISO 5211 mounting
Technical Documentation & Project Support
- Product specifications, GA drawings, certification documents, and samples
- Inspection and test plans, test reports, and pre-delivery reports
Installation, Maintenance & After-Sales
- Installation guidance and remote technical assistance for correct startup
- Maintenance manuals, warranty service, and spare-parts replacement
Why Choose XINTAI
What sets XINTAI apart isn't a single factor — it's how manufacturing depth, material expertise, and project support come together for procurement teams and engineers.
Proven Global Project Experience
60+ cross-industry projects delivered between 2022 and 2024, spanning the Middle East to Southeast Asia, for international clients including Petronas, PARCO, Saudi Aramco, and Repsol YPF.
Integrated Manufacturing & Quality Assurance
In-house casting, CNC machining, assembly, and testing capabilities, backed by an independent testing company and third-party inspection support.
Full-Service Engineering Support
Pre-sales consulting, custom valve solutions, order tracking, and installation and after-sales support for projects worldwide.
Butterfly Valve Manufacturing & Quality Control
XINTAI's integrated production facility covers the complete manufacturing cycle — from casting through CNC machining, assembly, and testing — under one roof.
Casting & CNC Machining
10+ automated casting lines with annual capacity above 270,000 valve castings; multi-axis CNC machining for sealing surfaces, pressure-bearing parts, and special alloys.
Dimensional Inspection
CMM testing, 3D measuring systems, and wall-thickness inspection confirm critical dimensions before assembly.
Assembly & QC Checkpoints
Intelligent assembly lines with integrated QC checkpoints and robotics ensure disc, seat, and body match to design tolerance.
Pressure & Leakage Testing
Routine shell, seat, and sealing-performance testing per API 598, ISO 5208, and EN 12266-1 standards.
Advanced NDT & Reporting
PMI, ultrasonic, magnetic particle, and penetrant testing available, with pre-delivery reports and full test documentation.
Third-party inspection support: XINTAI operates an independent in-house testing company and coordinates with external inspection agencies per project ITP requirements, including service-life evaluation, high-low temperature testing, salt spray testing, and tensile and impact testing where specified.
Butterfly Valve FAQs
Common questions from procurement managers and engineers about XINTAI butterfly valves.
Which high temperature butterfly valve should I choose?
Triple offset, metal-seated butterfly valves are the right choice for high-temperature steam, flue gas, and severe-service conditions up to 600°C, since the metal-to-metal seal withstands heat and abrasion that would degrade a soft-seated design.
Can you supply a butterfly valve with actuator?
Yes. XINTAI configures pneumatic and electric actuators to match valve torque, operating frequency, and control system requirements, mounted to an ISO 5211 interface for reliable remote and automated operation.
What sizes and pressure ratings are available?
Sizes range up to DN1500 (60″), with pressure ratings from PN6 to PN100 and Class 150 to Class 600, depending on the product series selected.
Can you manufacture API 609 butterfly valves?
Yes. XINTAI supplies butterfly valves designed and tested per applicable API 609 requirements and project specifications, with supporting documentation for vendor approval.
Do you support OEM butterfly valve manufacturing?
Yes. OEM options include custom size, pressure rating, body and trim materials, seat and lining materials, actuator configuration, end connections, testing scope, and technical documentation.
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