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API Standard Check Valve Used in Petroleum Crude Oil Transmission, Suitable for High Pressure Gas and Liquid
Product Spotlights
API 6D/594 compliant check valve for petroleum crude oil and high-pressure gas/liquid. Features robust materials (carbon/stainless/alloy steel), multiple designs (swing, dual plate, lift), and temperature range -29°C to +425°C. ISO9001 certified manufacturer with global export experience. Customizable end connections, NACE option, and long service life. Reliable backflow prevention with low pressure drop.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Standard:
Other, API 6D / API 594
Material:
Other, Carbon Steel / Stainless Steel / Alloy Steel
Application:
Other, Petroleum
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
Other, API 6D / API 594
Material
Other, Carbon Steel / Stainless Steel / Alloy Steel
Application
Other, Petroleum
Size Range
2“ - 48“ (DN50 - DN1200)
Pressure Rating
Class 150 - Class 2500 (PN16 - PN420)
Temperature Range
-29°C to +425°C (customizable)
Connection Type
Flanged / Wafer / Lug / Butt Weld
Design Type
Swing / Lift / Dual Plate / Tilting Disc
Certification
ISO9001:2015
Color
Blue / Silver / Red (customizable)
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and headquartered in Shanghai, China, is a professional manufacturer dedicated to producing high-quality industrial valves. We specialize in API standard check valves engineered for petroleum crude oil transmission and severe service conditions involving high pressure gas and liquid. With an annual export value of US$1–1.5 million and ISO9001 certification, our products are trusted by clients across North America, South America, Europe, Asia, Africa, and Oceania. This check valve is designed to prevent backflow, ensure system safety, and offer reliable performance under extreme pressures and temperatures, making it an essential component for oil and gas pipelines, refineries, and petrochemical plants.
Product Key Features & Technical Specifications
- API Standard Compliance: Manufactured in accordance with API 6D and API 594 standards, ensuring dimensional integrity, pressure rating, and material traceability required for critical oil and gas applications.
- Robust Material Selection: Available in carbon steel (WCB, WCC), stainless steel (CF8, CF8M, 304, 316), and alloy steel (WC6, WC9) to withstand corrosive media, high temperatures, and sour service (NACE MR0175 optional).
- High Pressure & Temperature Capability: Designed for pressure classes from 150 to 2500 (PN16–PN420) and temperature range –29°C to +425°C, with customized options for extreme conditions.
- Multiple Design Types: Swing check, lift check, dual plate check, and tilting disc check configurations to suit different flow characteristics, installation space, and maintenance requirements.
- Leakage Prevention: Metal-to-metal or soft seat sealing (PTFE, PEEK, NBR) ensures zero backflow and tight shut-off, meeting API 598 leakage requirements.
- Versatile End Connections: Flanged (RF, RTJ, FF), wafer, lug, and butt weld ends available, compatible with ANSI, DIN, JIS, and GB standards.
- Quick Response & Low Pressure Drop: Optimized disc design minimizes flow resistance and provides fast closing action to prevent water hammer.
- Easy Maintenance: Top-entry or split-body design facilitates in-line inspection and repair without removing the valve from the pipeline.
| Parameter | Value Range |
|---|---|
| Size (Nominal) | 2" – 48" (DN50 – DN1200) |
| Pressure Class | Class 150 – Class 2500 (PN16 – PN420) |
| Working Temperature | -29°C to +425°C (customizable up to +600°C) |
| Body Material | WCB, WCC, CF8, CF8M, WC6, WC9, etc. |
| Seat Material | Metal (Stellite) / Soft (PTFE, PEEK, NBR) |
| Media | Crude oil, natural gas, water, steam, chemicals |
| Design Standard | API 6D, API 594, ASME B16.34 |
| Testing Standard | API 598, ISO 5208 |
Advantages & Customer Benefits
- Enhanced System Safety: Prevents reverse flow that could damage pumps, compressors, and other downstream equipment, reducing downtime and maintenance costs.
- Long Service Life: High-quality materials and precision machining resist wear, corrosion, and erosion, even in harsh crude oil and gas environments.
- Energy Efficiency: Low-pressure drop design reduces pumping energy consumption, contributing to overall operational savings.
- Global Compatibility: Flange drilling and face-to-face dimensions conform to international standards, simplifying installation in existing pipelines worldwide.
- Customizable Options: Available with NACE certification, extended bonnet for cryogenic service, bypass valves, and position indicators upon request.
- Reliable Supply Chain: As a manufacturer with ISO9001 certification, we ensure strict quality control from raw material to final testing, with short lead times and competitive pricing.
Company Trustworthiness & Why Choose Us
Shanghai Zhibang Valve has been serving the global oil and gas industry since 2016, achieving an annual export value of US$1–1.5 million. Our products are shipped to major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, and are exported to over 15 countries across North America, South America, Europe, Africa, Asia, and Oceania. We hold ISO9001:2015 certification, which reflects our commitment to quality management and continuous improvement. Every check valve undergoes rigorous hydrostatic and pneumatic testing per API 598 before delivery. Our experienced engineering team can provide technical support, installation guidance, and after-sales service. We invite you to contact us for a quote or to discuss your specific requirements.
Frequently Asked Questions (FAQ)
-
What is the difference between a swing check valve and a dual plate check valve?
A swing check valve uses a single disc that swings on a hinge, suitable for low velocity and large diameter lines. A dual plate check valve has two spring-loaded plates that close quickly, ideal for high velocity, pulsating flow, and where space is limited. We can recommend the best type based on your operating conditions. -
Can this check valve be used for sour gas (H2S) service?
Yes, we can supply NACE MR0175 compliant materials (such as Inconel cladding, controlled hardness) for sour service. Please specify your requirement when ordering. -
What is the maximum pressure rating for a 24-inch check valve?
Our standard design covers Class 150 to Class 2500. For a 24-inch valve, Class 150 to Class 900 is typical, but higher classes are available upon request with customized design. -
Do you offer flanged connections with RTJ facing?
Yes, we offer raised face (RF), ring-type joint (RTJ), and flat face (FF) as per ASME B16.5. RTJ is commonly used for high-pressure applications. -
How does the valve prevent water hammer?
Our dual plate and tilting disc check valves feature spring-assisted closing that ensures rapid response to flow reversal, minimizing the risk of water hammer. The disc design also reduces the closing time. -
What is the typical lead time for a standard check valve?
Lead time depends on size, material, and quantity. For standard sizes (2-12 inch) in carbon steel, it is typically 15-25 working days. Larger or custom orders may require 30-45 days. Please contact us for exact delivery time. -
Can you provide a certificate of conformity and material test reports?
Yes, we provide full documentation including mill test certificates, pressure test reports, and certificate of conformity per ISO9001 requirements. Third-party inspection is also acceptable. -
What is the warranty period?
We offer a 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options are available upon request.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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