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Help CenterSpring Loaded Check Valve for Oilfield Gas Gathering and Transmission Pipeline System
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Shanghai Zhibang Valve Manufacture Co., Ltd. has been a trusted manufacturer of high-performance industrial valves since 2016. Our Spring Loaded Check Valve for Oilfield Gas Gathering and Transmission Pipeline System is engineered to provide reliable backflow prevention in demanding gas pipeline environments. With annual export value exceeding US$1 million and ISO9001 certification, we ensure every valve meets stringent quality standards. This check valve is designed specifically for oilfield applications, offering low pressure drop, quick response, and long service life.
Our advanced manufacturing process and rigorous testing protocols guarantee that each valve performs flawlessly under high pressure and corrosive gas conditions. The spring-loaded mechanism ensures positive sealing even at low flow rates, preventing reverse flow that could damage equipment or compromise safety. Whether for new pipeline construction or retrofit projects, this valve is a critical component for maintaining system integrity.
Below we provide detailed technical specifications, key features, and answers to common buyer questions. We invite you to explore the full capabilities of our spring loaded check valve.
Key Features
- Spring-loaded design – ensures rapid closing when flow reverses, minimizing water hammer and pressure surges.
- Low cracking pressure – allows operation at minimal differential pressure, ideal for gas gathering systems with variable flow.
- Full bore / reduced bore options – available to match pipeline requirements and optimize flow capacity.
- Wide range of materials – carbon steel, stainless steel, duplex, and exotic alloys for corrosive or sour gas service.
- Multiple end connections – flanged (RF, RTJ), threaded, butt-weld, or socket-weld per customer specifications.
- Compliant with international standards – API 6D, ASME B16.34, ISO 9001 certified.
- Bi-directional sealing capability – optional metal-to-metal or soft seal for bubble-tight shutoff.
- Easy maintenance – top entry design allows inline inspection and repair without removing the valve from the pipeline.
Technical Specifications
| Parameter | Value |
| Size Range | 2" – 24" (DN50 – DN600) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 (PN16 – PN400) |
| Temperature Range | -29°C to +350°C (higher upon request) |
| Body Material | WCB, WCC, LCB, CF8, CF8M, Duplex, Super Duplex |
| Trim Material | 13Cr, SS304, SS316, Monel, Inconel |
| Spring Material | Stainless Steel 301/302, Hastelloy (optional) |
| Seat Material | PTFE, Nylon, PEEK, Metal (Stellite) |
| End Connection | Flanged (ASME, EN, JIS), Threaded (NPT/BSP), Welded |
| Design Standard | API 6D, ASME B16.34, ISO 17292 (optional) |
| Testing Standard | API 598, ISO 5208 |
Benefits for Your Pipeline System
- Enhanced safety – prevents backflow that could cause compressor damage, hydrate formation, or contamination of upstream equipment.
- Reduced maintenance cost – robust design minimizes wear and tear, and the spring-loaded mechanism eliminates the need for external actuators.
- Optimized flow performance – low pressure drop reduces energy consumption in gas transmission.
- Versatility – suitable for natural gas, associated gas, CO2, and other non-corrosive or mildly corrosive media.
- Global compliance – valves meet ASME, API, and ISO standards, facilitating acceptance in international oilfield projects.
Frequently Asked Questions (FAQ)
Q1: What is the difference between a spring loaded check valve and a swing check valve?
A: A spring loaded check valve uses a spring to assist closing, allowing it to operate in any orientation and providing faster response to flow reversal. Swing check valves rely on gravity and are typically installed in horizontal pipelines. For gas gathering systems with fluctuating flow, spring loaded types are preferred for reliable sealing.
Q2: Can this valve be used for sour gas (H2S) service?
A: Yes, we can provide materials that comply with NACE MR0175/ISO 15156 for sour service. Options include carbon steel with proper hardness control, stainless steel, and nickel alloys. Please specify your H2S concentration and partial pressure when ordering.
Q3: What is the typical cracking pressure of your spring loaded check valve?
A: The cracking pressure is customizable. Standard values range from 0.5 psi to 5 psi (0.03 bar to 0.34 bar). For low-pressure gas gathering systems, we can reduce the spring force to achieve cracking pressure as low as 0.1 psi.
Q4: How do you ensure bubble-tight shutoff?
A: We offer both soft-seated (PTFE, Nylon, PEEK) and metal-seated options. For gas applications requiring zero leakage, soft seats provide bubble-tight sealing per API 598. Our factory conducts 100% hydrostatic and pneumatic testing to verify performance.
Q5: What is the delivery time for a typical order?
A: Standard sizes (2" – 12") in common materials are usually shipped within 30–45 days after order confirmation. Larger sizes or special materials may require 60–90 days. Please contact our sales team for precise lead times based on your specifications.
Q6: Do you provide certificates for material and testing?
A: Yes, we supply material certificates (EN 10204 3.1 or 3.2), hydrostatic/pneumatic test reports, and ISO 9001 quality certification. Additional documentation such as NACE compliance, PMI, and NDT reports are available upon request.
Q7: Can I get a sample or a small quantity for trial?
A: Absolutely. We welcome trial orders for small quantities. For standard sizes, we can ship a single valve for evaluation. Please contact us to discuss your requirements.
Q8: What are your shipping ports and payment terms?
A: We ship from Shanghai, Guangzhou, Hong Kong, and Beijing. Our main markets cover North America, South America, Europe, Africa, Asia, and Oceania. Payment terms: T/T, L/C, Western Union, etc. For long-term cooperation, flexible terms can be negotiated.
Why Choose Shanghai Zhibang Valve?
Since our establishment in 2016, we have continuously invested in advanced machining centers, CNC equipment, and a comprehensive quality control system. Our ISO9001 certification reflects our commitment to manufacturing excellence. With annual export value between US$1 million and US$1.5 million, we have successfully served clients in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions. Our valves are used in oilfields, gas processing plants, and pipeline transmission projects worldwide.
We understand that every oilfield project has unique requirements. That is why we offer customization services – from material selection and pressure class to end connections and special coatings. Our experienced engineers work closely with you to ensure the spring loaded check valve perfectly matches your gas gathering and transmission system.
Contact us today to discuss your project needs. Request a quote, ask for technical datasheets, or inquire about samples. Let Shanghai Zhibang Valve be your reliable partner in pipeline safety and efficiency.
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