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Shanghai Zhibang Valve Manufacture Co., Ltd. has been a dedicated manufacturer of API 609 Butterfly Valves since 2016, providing reliable flow control solutions for global industries. Our valves are engineered for durability and precision, with comprehensive technical support from selection through installation. With an annual export value of US$1-1.5 million and ISO9001 certification, we ensure every product meets rigorous quality standards. Whether you need a standard wafer design or a custom lug configuration, our expertise guarantees performance you can trust.
Product Features & Technical Specifications
- Compliance with API 609: Valves are designed and tested per API 609 standard, ensuring dimensional integrity and leak-tight performance for both wafer and lug types.
- Versatile Material Options: Body materials include ductile iron, WCB, stainless steel (CF8/CF8M); seat options such as EPDM, NBR, PTFE, and Viton accommodate various media and temperature ranges.
- Zero Leakage Design: Resilient seat provides bubble-tight shut-off (tested to ISO 5208 Rate A) while maintaining low torque for easy operation.
- Multiple Actuation Choices: Lever, gearbox, pneumatic actuator, or electric actuator – all configurable to match your automation needs.
- Compact & Lightweight: Wafer-style design reduces weight and installation space, while lug version allows dead-end service and easy maintenance.
- Corrosion Resistance: Available with epoxy coating, nylon coating, or stainless steel trim for harsh environments.
| Parameter | Specification |
|---|---|
| Size Range | DN50 – DN1200 (2" – 48") |
| Pressure Rating | PN10/PN16/PN25; Class150/Class300 |
| Face-to-Face Dimension | Per API 609 (MSS SP-67 also available) |
| Leakage Test | Bubble-tight (ISO 5208 Rate A) |
| Suitable Media | Water, oil, gas, chemical, slurry |
| Operating Temperature | -40°C to +200°C (seat dependent) |
| Top Flange | ISO 5211 direct mounting for actuators |
Key Benefits for Your Application
- Reduced Maintenance Cost: Resilient seat design and corrosion-resistant materials extend service life, minimizing downtime.
- Easy Integration: ISO 5211 mounting pad allows direct attachment of actuators without brackets – simplifies automation.
- Customizable: Options such as locking devices, position indicators, limit switches, and extended stems are available per request.
- Global Compatibility: Valves are designed to mate with standard flanges (PN, ANSI, JIS) and meet international dimensional standards.
Why Choose Shanghai Zhibang?
As a certified ISO9001 manufacturer, we follow strict quality procedures from raw material inspection to final testing. Our factory in Shanghai has an annual export value of US$1-1.5 million, serving markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We offer dedicated technical support – including valve sizing, actuator selection, and installation guidance – to ensure your project runs smoothly. With flexible shipment from Shanghai, Guangzhou, Hong Kong, and Beijing, we deliver to you efficiently.
Frequently Asked Questions (FAQ)
Q1: What is the difference between wafer and lug butterfly valves in API 609?
A: Wafer style is sandwiched between flanges and used for end-of-line service only with a downstream flange. Lug style has threaded inserts that allow dead-end service and easier maintenance without draining the entire line.
Q2: Can you supply valves with pneumatic or electric actuators?
A: Yes, we offer complete actuated valve packages. Actuator options include double-acting or spring-return pneumatic, and 24V/220V electric actuators with feedback or positioner as required.
Q3: Are your valves certified for drinking water applications?
A: Our EPDM and NBR seat materials are suitable for potable water. Specific certifications (e.g., WRAS, NSF) can be provided upon request depending on the material and coating.
Q4: What is the lead time for standard sizes?
A: For DN50-DN300 sizes, typical lead time is 15-25 working days. Larger sizes may require 30-40 days. Rush orders are negotiable.
Q5: How do I select the correct valve seat for high-temperature service?
A: For temperatures above 120°C, PTFE or Viton seats are recommended. For up to 200°C, use reinforced PTFE with stainless steel disc. Our technical support team can assist with a proper selection.
Q6: Do you provide sample testing before bulk order?
A: Yes, samples are available and can be customized with your specifications. Sample cost is negotiable and will be deducted from bulk order value.
Q7: What is the warranty period for your butterfly valves?
A: We offer a standard 18-month warranty from shipment date, covering manufacturing defects. Extended warranty options are available upon request.
Q8: Can you produce valves with non-standard face-to-face dimensions?
A: Yes, we can manufacture according to customer drawings or special requirements. Please provide specifications for quotation.
Contact us today for a quotation or technical consultation – our experienced team is ready to support your next project.
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