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Help CenterANSI Class 150 Lug/Wafer Butterfly Valve ASTM A126B Body API 609 Design ASME B16.42 Flange Industrial Pipeline Valve Manual/Worm/Electric Operated
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ANSI Lug/Wafer Type Butterfly Valve
Product Overview
Our ANSI standard butterfly valve is a high-performance industrial valve designed for reliable flow control in demanding applications. Featuring a lug/wafer type structure, it combines excellent sealing performance, corrosion resistance, and long service life, making it ideal for oil, gas, chemical, water treatment, and thermal power cooling water systems. Available in manual, worm gear, and electric actuation, it meets strict ANSI/API/ASME standards for global industrial projects.
Technical Specifications
1. Size & Pressure Rating
Size Range: 1/2" ~ 40" (DN40 ~ DN1000)
Pressure Class: 150LB (ANSI Class 150)
2. Design & Testing Standards
| Item | Standard |
|---|---|
| Design Standard | ANSI |
| Face-to-Face Dimension | API 609 |
| Flange Standard | ASME B16.42 |
| Testing Standard | API 598 |
3. Material of Construction
| Component | Material Options |
|---|---|
| Body | ASTM A126B cast iron |
| Stem | 2Cr13 / SS304 / SS316 / Carbon Steel |
| Disc | Ductile Iron / SS304 / SS316 |
| Gasket | PTFE |
| Seat | NBR / EPDM / PTFE / RPTFE |
| Packing | NBR / PTFE / EPDM / Teflon |
| Handle | ASTM A536 65-45-12 |
4. Operation Types
Manual operation (lever handle)
Worm gear operation (for large size valves)
Electric actuation (automated control)
Application Scenarios
Oil, gas, and chemical industry pipelines
Municipal water supply and sewage treatment systems
Thermal power station cooling water systems
Industrial fluid control systems
Marine and offshore engineering
About Our Factory
Our factory is a professional valve manufacturer with more than 30 years of production experience, located in Xingtai, Hebei, China. The factory covers an area of 70,000 square meters, with 400+ employees, and has passed ISO9001 quality management system certification. Our products are exported to more than 50 countries and regions in Europe, America, Southeast Asia, Middle East and Africa, winning high praise from global customers. We adhere to the business philosophy of "Quality First, Customer Supreme", providing customers with high-quality products and professional services. Welcome to contact us for inquiry and cooperation!
✅ International Quality Certification
Our company is certified by ISO 9001 Quality Management System, ensuring strict quality control throughout the production process, and delivering reliable valve products to global customers.
🔹 Packaging and Transportation
Packaging：Standard export plywood case / carton, with foam protection to avoid damage during transportation
Delivery Time：3-7 working days for stock, 15-20 working days for customized orders
Shipping Method：Sea freight, air freight, express (DHL, FedEx, etc.)
Customization Support：Accept customized size, pressure, material, logo, etc.
ANSI Lug/Wafer Type Butterfly Valve Q&A
Q1: What standards do your ANSI butterfly valves comply with?
A: Our valves strictly follow international standards:
Design standard: ANSI
Face-to-face dimension: API 609
Flange standard: ASME B16.42
Testing standard: API 598All products are 100% tested per API 598 before delivery to ensure quality compliance.
Q2: What is the size and pressure range of your ANSI butterfly valves?
A: We offer a full range of specifications:
Size: 1/2" ~ 40" (DN40 ~ DN1000)
Pressure rating: ANSI Class 150 (150LB)Custom sizes and pressure classes are also available upon request.
Q3: What material options are available for the valve body, stem, disc and seat?
A: We provide multiple material combinations to suit different working conditions:
Body: ASTM A126B ductile iron (standard)
Stem: 2Cr13, SS304, SS316, carbon steel
Disc: Ductile iron, SS304, SS316
Seat: NBR, EPDM, PTFE, RPTFE (for different media and temperature requirements)
Q4: What operation types do you offer?
A: We support 3 common drive modes to meet different control needs:
Manual operation (lever handle, for small/medium size valves)
Worm gear operation (for large size valves, labor-saving operation)
Electric actuation (for automated control systems)
Q5: What applications are your ANSI butterfly valves suitable for?
A: Our valves are widely used in:
Oil, gas and chemical industry pipelines
Water treatment and municipal water supply/sewage systems
Cooling water systems of thermal power stations
General industrial fluid control systemsThey are compatible with water, oil, gas and most chemical media.
Q6: What is the working temperature range of your valves?
A: The temperature range depends on the seat material:
EPDM/NBR seat: -40℃ ~ 120℃ (for general water/oil/gas)
PTFE/RPTFE seat: -20℃ ~ 150℃ (for corrosive chemical media)We can recommend the most suitable material based on your specific working conditions.
Q7: Do you accept OEM/ODM customization?
A: Yes, we support full customization:
Custom materials, sizes and pressure ratings
Custom actuation types and accessories
Custom packaging and brandingWe can also provide customized solutions for special working conditions.
Q8: What is your delivery time and packaging?
A:
Delivery time: 7-15 working days after payment (depends on order quantity)
Packaging: Standard export plywood case, suitable for sea/air transportation, with shockproof and moisture-proof protection
We also support expedited delivery for urgent orders.
Q9: What is your warranty and after-sales service?
A:
12-month warranty for all products from the date of delivery
Free technical support and installation guidance
Lifetime spare parts supply
24-hour online customer service to solve any problems in time
Q10: Can you provide technical drawings, datasheets and samples?
A: Yes, we can provide:
Detailed 2D/3D technical drawings
Complete product datasheets with full specifications
Sample testing for quality verificationPlease contact us for the relevant documents.
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