Product Overview
ANSI Butterfly Valve is designed for reliable on/off and throttling service in industrial piping systems where space-saving structure and stable flow control are required. The valve is manufactured in accordance with ANSI flange standards to ensure dimensional compatibility with North American and international pipeline networks.
It is commonly applied in water treatment, HVAC, chemical processing, power generation, and general industrial fluid control utilities.
Technical Specifications
|
Parameter |
Specification Range |
Compliance Standard |
|
Size Range |
1-1/2" to 40" (DN40 - DN1000) |
ASME B16.34 |
|
Pressure Rating |
Class 150 / Class 300 |
ASME B16.34 / API 598 |
|
Temperature Limits |
-40°C to 180°C (Soft Seat) Up to 350°C (Metal-to-Metal Seat) |
Material-Dependent Limits |
|
Body Materials |
WCB (Carbon Steel), CF8 (SS304), CF8M (SS316) |
ASTM / EN 10204 3.1 |
|
Disc Materials |
CF8, CF8M, Monel, Hastelloy |
ASTM A351 / A216 |
|
Seat & Sealing |
PTFE (Teflon) / High-Performance Metal-to-Metal |
Zero-Leakage API 598 Standard |
|
Connection Type |
Flanged (Wafer and Lug configurations available) |
ASME B16.5 |
Engineering Advantages
Fully compliant with ANSI B16.5 standards for seamless, drop-in compatibility with standard US pipelines.
Covers sizes from DN40 to DN1000 with Class 150/300 ratings for versatile, high-pressure stability.
Withstands extreme temperatures from -40°C to 350°C, suiting both cryogenic and high-temperature steam utilities.
Offers customizable WCB/CF8/CF8M bodies and PTFE/Hastelloy seals for targeted corrosion and wear resistance.
Available in sizes up to 40" (DN1000) for municipal water lines and heavy industrial applications.
Actuation & Automation Options
To support modern automated processing plants, all Zhengmao butterfly valves feature international standard automation interfaces:
ISO 5211 Direct Mounting Pads: Machined upper flanges allow the direct installation of electric, pneumatic, or hydraulic actuators without breaking the pipeline pressure boundary.
Flexible Field Operation: Valves can be configured with manual levers, heavy-duty worm gears, pneumatic double-acting/spring-return actuators, or 4-20mA smart electric modulating actuators with limit switches.
Quality Control & Traceability
Raw Material Verification: Every batch of WCB, CF8, and CF8M steel undergoes positive material identification (PMI) spectrometer testing to ensure exact alloy composition before casting.
100% Pressure Testing: Each valve undergoes shell and seat hydrostatic/pneumatic pressure testing in strict accordance with API 598 prior to final packaging.
Traceable Documentation: Original EN 10204 3.1 Material Test Reports (MTRs) and pressure test logs are archived and linked to the specific heat number stamped on each valve body.
Wholesale Logistics & Packaging
Export Packaging: Heavy-duty, fumigated plywood cases with internal moisture barriers and valve port protective covers to prevent transit damage.
Trade Terms Supported: FOB, CIF, CFR, and DDP options available based on destination port requirements.
Sample Service: Material samples or small-diameter test units can be arranged for qualified industrial distributors conducting technical qualification processes.
Rapid Project Turnaround: A streamlined supply chain enables an average production lead time of just 3-4 weeks for wholesale volumes, significantly reducing your project downtime.
FAQ
Q: What certifications and quality documentation do you provide?
A: We supply EN 10204 3.1 Material Test Reports (MTR), pressure test certificates, and standard compliance data with every shipment.
Q: What is your standard lead time for high-volume wholesale orders?
A: Standard production averages 3 to 4 weeks, depending on the specific valve size mix and material configurations requested.
Q: Do you support third-party inspections before shipment?
A: Yes, we regularly accommodate pre-shipment inspections by international agencies like SGS, BV, or your designated local inspectors.
Q: Can you customize the valve actuation for automated systems?
A: Yes, the upper flanges are machined to accept standard ISO 5211 mounting for direct assembly with pneumatic, electric, or manual gear actuators.
Q: What factory qualifications and system certifications does Zhengmao hold?
A: Our manufacturing facilities are fully certified under ISO 9001:2015, CE/PED, and operate strictly in accordance with API standards. We welcome regular factory audits from global industrial clients.
Q: What is the warranty period for Zhengmao ANSI Butterfly Valves?
A: We provide a 12-month warranty from the date of installation or 18 months from the shipping date (whichever comes first) against manufacturing defects.
Q: How do you handle quality claims or technical issues post-delivery?
A: In the rare event of a quality variance, our technical support team responds within 24 hours. We offer remote engineering diagnostics and will provide replacement parts or equivalent solutions swiftly to minimize your project downtime.
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