API 609 Certified Butterfly Valve, Marine Grade Stainless Steel for Offshore Oil & Gas
Product Spotlights
Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our API 609 Certified Butterfly Valve, engineered with marine grade stainless steel specifically for demanding offshore oil & gas applications. Since 2016, we have been a reliable manufacturer dedicated to delivering high-performance valve solutions that withstand harsh marine environments. This butterfly valve is designed to offer exceptional corrosion resistance, reliable sealing, and long service life, making it an ideal choice for critical offshore operations. Our commitment to quality is backed by ISO9001 certification and a proven export track record of US$1 million to US$1.5 million annually to global markets including North America, Europe, and Southeast Asia.
Key Features & Technical Specifications:
- API 609 Compliance: Fully meets API 609 standards for face-to-face dimensions, pressure-temperature ratings, and testing requirements, ensuring interchangeability and reliability.
- Marine Grade Stainless Steel Construction: Body, disc, and stem are made from SS316 or SS316L, offering superior resistance to saltwater corrosion, pitting, and crevice corrosion in offshore environments.
- Bubble-Tight Shut-Off: Equipped with a resilient seat (PTFE or reinforced PTFE) that provides zero leakage at rated pressures, critical for safety and environmental protection.
- Bi-Directional Sealing: Designed for bi-directional flow, reducing installation errors and enhancing operational flexibility.
- Low Torque Operation: Optimized disc profile minimizes operating torque, allowing for smaller actuators and reduced energy consumption.
- Fire-Safe Design (Optional): Available with fire-safe seat materials per API 607 for added safety in hydrocarbon applications.
- Multiple Actuation Options: Can be supplied with manual lever, gearbox, pneumatic actuator, or electric actuator to suit various control requirements.
| Parameter | Specification |
|---|---|
| Size Range | DN50 – DN1200 (2" – 48") |
| Pressure Rating | Class 150, Class 300, Class 600 |
| End Connections | Wafer, Lug, Flanged (RF or RTJ) |
| Seat Material | PTFE, R-PTFE, Nylon, or Metal (optional) |
| Stem Material | SS316 / SS316L / 17-4PH |
| Temperature Range | -29°C to +200°C (higher with optional materials) |
| Testing | Hydrostatic, Pneumatic, and Seat Leakage Test per API 598 |
Customer Benefits:
- Extended Service Life: Marine grade stainless steel resists corrosion from seawater and aggressive chemicals, reducing maintenance and replacement costs.
- Enhanced Safety: Bubble-tight shut-off and optional fire-safe design minimize leakage risks in critical offshore systems.
- Easy Integration: API 609 dimensions ensure direct replacement of existing valves without piping modifications.
- Cost-Effective Operation: Low torque requirement allows for smaller, more affordable actuators and lower energy usage.
- Global Support: With annual exports exceeding US$1 million and shipments from Shanghai, Guangzhou, Hong Kong, and Beijing, we provide reliable logistics and after-sales service worldwide.
Trusted by Industries Worldwide: Our butterfly valves are widely used in offshore platforms, FPSO vessels, subsea pipelines, and refinery systems across North America, South America, Europe, Middle East, Africa, and Asia. As an ISO9001 certified manufacturer with a dedicated engineering team, we ensure every valve meets rigorous quality standards. Our US$1 million+ annual export value reflects the confidence our global customers place in our products. Contact us today for a customized solution or to request a quote – we are ready to support your offshore projects with reliable, high-performance valves.
Frequently Asked Questions (FAQ):
Q1: What is the difference between API 609 and other butterfly valve standards?
A1: API 609 specifically covers butterfly valves for the petroleum and natural gas industries, defining face-to-face dimensions, pressure-temperature ratings, and testing criteria. It ensures compatibility and reliability in oil & gas applications, unlike general-purpose standards such as ISO 5752 or EN 593.
Q2: Can this valve be used for seawater service?
A2: Yes, the marine grade stainless steel (SS316/SS316L) construction provides excellent corrosion resistance in seawater environments, making it suitable for offshore cooling water, fire-fighting, and ballast systems.
Q3: What actuation options are available?
A3: We offer manual lever, gearbox, pneumatic actuator (double-acting or spring-return), and electric actuator (on-off or modulating). Actuators can be customized to match your control system requirements.
Q4: Is the valve fire-safe?
A4: A fire-safe design is available as an option, using seat materials that comply with API 607. Please specify your requirement when ordering.
Q5: What is the typical lead time?
A5: Standard sizes (DN50-DN300) are typically shipped within 15-25 working days. Larger sizes or custom configurations may require 30-45 working days. We offer expedited shipping for urgent orders.
Q6: Do you provide testing certificates?
A6: Yes, each valve is tested per API 598 and comes with a hydrostatic test certificate. Material test reports (MTR) and other documentation are available upon request.
Q7: Can the valve be repaired in the field?
A7: Yes, the design allows for easy seat and seal replacement without special tools. We provide maintenance manuals and spare parts kits for field service.
Q8: What is the warranty period?
A8: We offer a standard 12-month warranty from the date of shipment, covering manufacturing defects. Extended warranty options are available upon request.
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