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Spring Loaded Check Valve -20°C to 150°C for Gas Transmission Pipeline Industrial
Product Spotlights
Our spring-loaded check valve ensures reliable backflow prevention in gas transmission pipelines from -20°C to 150°C. Featuring durable construction, low pressure drop, and customizable options, it is manufactured under ISO9001 by a trusted Shanghai-based exporter serving global markets. Easy maintenance, positive sealing, and proven performance make it a cost-effective choice for industrial gas systems.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Carbon steel / Stainless steel (optional)
Application:
Other, Gas transmission pipelines
Standard:
Other, ISO9001, API 6D (optional, available upon request)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Carbon steel / Stainless steel (optional)
Application
Other, Gas transmission pipelines
Standard
Other, ISO9001, API 6D (optional, available upon request)
Connection
Flanged / Threaded / Welded
Pressure Rating
PN16 / PN25 / PN40 (customizable)
Temperature Range
-20°C to +150°C
Spring Material
Stainless steel 304 / 316
Size Range
DN15 – DN600 (1/2“ – 24“)
Operation Type
Automatic (spring-loaded)
Sealing
Metal-to-metal or soft seal (optional)
Shanghai Zhibang Valve Manufacture Co., Ltd (established in 2016) is a professional manufacturer specializing in high-quality industrial valves. With annual export value exceeding US$1 million and a global presence spanning North America, South America, Europe, Asia, Africa, and Oceania, we have earned the trust of clients worldwide. Our Spring Loaded Check Valve is designed specifically for gas transmission pipelines, offering reliable backflow prevention in extreme temperatures from -20°C to 150°C. This valve combines robust construction, precision engineering, and rigorous quality control to ensure long service life and minimal maintenance.
The spring-loaded mechanism ensures positive shut-off even at low flow conditions, preventing reverse flow that could damage equipment or disrupt pipeline operations. Manufactured under ISO9001 certified quality management system, each valve undergoes strict testing to meet international standards. Whether for natural gas, industrial gas, or other gaseous media, this valve provides consistent performance and safety.
Key Features & Technical Specifications
- Spring-Loaded Design: Ensures rapid closure and tight sealing, preventing backflow even at low differential pressure.
- Wide Temperature Range: Operates reliably from -20°C to 150°C, suitable for various climatic conditions and pipeline applications.
- Durable Construction: Available in carbon steel, stainless steel, or alloy steel, with optional corrosion-resistant coatings.
- Multiple Connection Types: Flanged, threaded, or welded ends to fit existing pipeline systems.
- Low Pressure Drop: Optimized internal flow path minimizes energy loss, improving system efficiency.
- Easy Maintenance: Simple design allows quick inspection and replacement of internal components.
- Customizable Options: Spring force, sealing material, and end connections can be tailored to specific requirements.
- Compliance: Manufactured in accordance with ISO9001, and can be supplied with API 6D, CE, or other certifications upon request.
| Parameter | Details |
|---|---|
| Size Range | DN15 – DN600 (1/2" – 24") |
| Pressure Rating | PN16, PN25, PN40 (Class 150 – 300 available) |
| Temperature Range | -20°C to +150°C |
| Body Material | WCB, CF8, CF8M, or other alloys |
| Spring Material | Stainless steel 304, 316, or 316L |
| Sealing | Metal-to-metal, soft seal (PTFE, NBR, Viton) |
| Connection | Flanged (RF, FF, RTJ), threaded, butt-weld |
Why Choose Our Spring Loaded Check Valve?
- Reliability in Gas Transmission: Specifically engineered for natural gas, LPG, and other industrial gases, the valve prevents backflow that could cause pressure surges or contamination.
- High-Quality Manufacturing: All components are produced with precision machining and undergo hydrostatic and pneumatic testing to ensure zero leakage.
- Long Service Life: The spring is fatigue-resistant, and the valve body is designed to withstand harsh environments, reducing replacement frequency.
- Global Shipping: We ship from Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to major markets worldwide.
- Customer Support: Our experienced team provides technical guidance, installation advice, and after-sales service.
As a direct manufacturer with ISO9001 certification, Shanghai Zhibang Valve ensures consistent quality from raw material to finished product. Over US$1 million in annual exports and a broad market presence demonstrate our capability to meet global demand. Our valves are used in pipelines across five continents, earning positive feedback for their durability and performance.
We invite you to experience the reliability of our spring-loaded check valve. Contact our sales team for detailed specifications, pricing, or custom solutions. With flexible customization options and competitive pricing, we are your trusted partner for gas transmission pipeline components.
Frequently Asked Questions (FAQ)
-
Q: What is the working principle of a spring-loaded check valve?
A: The valve uses a spring to keep the disc closed against the seat. When flow moves in the forward direction, pressure overcomes the spring force, opening the valve. When flow stops or reverses, the spring pushes the disc back to the closed position, preventing backflow. -
Q: Can this valve be used for liquids as well as gases?
A: Yes, it is suitable for both gases and liquids, but the design is optimized for gas transmission. For liquid applications, please confirm the pressure and temperature conditions with our engineers. -
Q: What is the maximum operating pressure?
A: Standard pressure ratings are PN16, PN25, and PN40 (up to Class 300). Higher pressure ratings are available upon request. -
Q: How do I choose the right spring force?
A: The spring force is selected based on the required cracking pressure (minimum forward pressure to open). Our technical team can recommend the appropriate spring for your system parameters. -
Q: Does the valve require regular maintenance?
A: The spring-loaded check valve is designed for low maintenance. Periodic inspection of the spring and seal is recommended, especially in harsh environments. Replacement parts are readily available. -
Q: Can I get a custom size or material?
A: Yes, we offer customization for size, material, end connections, and sealing material. Please provide your requirements for a tailored solution. -
Q: What certifications do you provide?
A: Our valves are manufactured under ISO9001 certified quality management system. Additional certifications such as API 6D, CE, or ATEX can be arranged upon request. -
Q: What is the typical lead time for an order?
A: Lead time depends on quantity and specifications. Standard sizes typically ship within 2–4 weeks. Custom orders may require longer. Please contact us for an accurate estimate.
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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