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Help CenterAPI Standard Check Valve for Crude Oil Pipeline, Refinery, Tank Farm, and Offshore Transmission
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As a leading manufacturer originating from Shanghai, China, Shanghai Zhibang Valve Manufacture Co., Ltd. has been dedicated to the production of high-performance industrial valves since 2016. Our API Standard Check Valve for Crude Oil Pipeline, Refinery, Tank Farm, and Offshore Transmission is engineered to meet the rigorous demands of the global oil and gas industry. With an annual export value of US$1–1.5 million and a strong presence across North America, South America, Europe, and Asia, we ensure that every valve delivers reliable backflow prevention, minimal pressure drop, and long service life in harsh environments. This check valve is designed to comply with API 6D and API 594 standards, offering exceptional sealing performance and durability under extreme pressures and temperatures.
Our check valve is specifically built for crude oil pipelines, refineries, tank farms, and offshore transmission systems. It effectively prevents reverse flow, protects pumps and compressors, and maintains system integrity. The valve features a robust disc and seat design, available in swing or lift configurations, with materials ranging from carbon steel to stainless steel and alloy steel to suit various corrosive and high-temperature media. Key advantages include:
- Compliance with API Standards: Manufactured to API 6D and API 594 specifications, ensuring global acceptance and safety.
- Wide Size and Pressure Range: Available from 2” to 48” (DN50 to DN1200) and pressure classes 150 to 2500, covering most pipeline requirements.
- Multiple End Connections: Flanged, butt weld, and socket weld options for easy integration into existing systems.
- High-Quality Materials: Carbon steel (WCB/WCC), stainless steel (CF8/CF8M/316L), and alloy steel (F11/F22) with optional hard-facing for abrasive media.
- Leak-Tight Sealing: Metal-to-metal or soft seal (PTFE/PEEK) for zero leakage performance.
- Low Pressure Drop: Optimized flow path reduces energy loss, ideal for long-distance transmission.
- Rugged Construction: Suitable for temperatures from -29°C to +425°C, with customization available for extreme conditions.
- Easy Maintenance: Top-entry or bolted bonnet design simplifies inspection and repair.
Below is a summary of technical specifications for our API Standard Check Valve:
| Parameter | Value |
|---|---|
| Design Standard | API 6D, API 594, ASME B16.34 |
| Size Range | DN50 – DN1200 (2” – 48”) |
| Pressure Rating | Class 150 – Class 2500 (PN16 – PN420) |
| End Connection | Flanged (RF/RTJ), Butt Weld, Socket Weld |
| Body Material | WCB, WCC, CF8, CF8M, F11, F22, etc. |
| Seat Material | Metal (Stellite/Inconel) or Soft (PTFE/PEEK) |
| Temperature Range | -29°C to +425°C (customizable) |
| Operation Mode | Automatic (non-return) |
Our check valve offers tangible benefits to your operations: reduced downtime due to reliable sealing, lower maintenance costs thanks to durable materials, and improved system efficiency from minimized pressure loss. Whether you are constructing a new crude oil pipeline or upgrading an existing refinery, our valve provides the performance and certification you need to meet international standards.
At Shanghai Zhibang Valve Manufacture, we take pride in our quality management system certified to ISO9001. Since 2016, we have shipped valves to over a dozen markets worldwide, with an annual export value exceeding US$1 million. Our products are rigorously tested for pressure, leakage, and material integrity before dispatch. We offer flexible shipping from Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to your project site. Our experienced team provides technical support and customization options, including special coatings, extended bonnets, and actuator-ready designs. Contact us today to discuss your specific requirements and experience the reliability of an API Standard Check Valve from a trusted manufacturer.
Frequently Asked Questions (FAQ)
-
What is the difference between a swing check and a lift check valve?
Swing check valves use a hinged disc that swings open with forward flow and closes when flow reverses, ideal for low-pressure drop applications. Lift check valves have a disc that lifts vertically, offering tighter sealing, suitable for high-pressure systems. -
Can this valve be used for sour gas or H₂S service?
Yes, we can manufacture the valve with NACE MR0175 compliant materials (e.g., Inconel, Monel) upon request. Please specify your service conditions when ordering. -
What is the lead time for a custom-size check valve?
Standard sizes (2”–24”) typically ship within 30–45 days. Larger or custom sizes may require 60–90 days, depending on material availability and specifications. -
Do you provide fire-safe design certification?
Our valves can be designed to meet API 607 or API 6FA fire-safe standards. This is an optional feature that can be added based on your project requirements. -
How do I select the correct pressure class for my pipeline?
Pressure class should be chosen based on the maximum operating pressure and temperature of your system. Our technical team can assist you in selecting the appropriate class (150 to 2500) based on your pipeline design parameters. -
Is the valve suitable for subsea or offshore transmission?
Absolutely. Our check valve can be supplied with corrosion-resistant coatings, double-block-and-bleed options, and actuator mounting flanges for offshore platforms and subsea pipelines. -
What warranty do you offer?
We provide a standard 12-month warranty from the date of shipment, covering manufacturing defects. Extended warranty is available upon request. -
How do I request a quote or technical drawing?
Please contact our sales team with your required size, pressure class, material, and end connection. We will provide a detailed quotation and dimensional drawing within 2 working days.
We look forward to partnering with you to deliver reliable flow control solutions. For inquiries, please reach out to our Shanghai headquarters or visit our website. Your satisfaction is our priority.
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