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Help CenterVertical Lift Check Valve for Hydraulic Station Oil Return Line Standard Compliant Reliable Performance
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Shanghai Zhibang Valve Manufacture Co., Ltd – a professional manufacturer established in 2016 with ISO 9001 certification and annual export value of US$1–1.5 million – proudly presents our Vertical Lift Check Valve for Hydraulic Station Oil Return Line. This valve is engineered to provide reliable, leak-free sealing in hydraulic return systems, ensuring consistent performance under demanding operating conditions. Designed to meet international standards, it offers a cost-effective solution for preventing backflow and protecting pumps and components. With our factory located in Shanghai, we serve global markets including North America, Europe, Asia, and Africa, delivering products that combine precision manufacturing with rigorous quality control.
Our vertical lift check valve features a compact, durable design that minimizes pressure drop and ensures smooth operation. The vertical lift mechanism allows the disc to move perpendicular to the seat, enabling a full opening and bubble-tight sealing when closed. The valve body is available in cast iron, ductile iron, or stainless steel, offering excellent corrosion resistance and long service life. Below is a summary of key specifications:
| Parameter | Value |
| Nominal Size | DN15 – DN300 |
| Pressure Rating | PN16 / PN25 / PN40 |
| Connection Type | Flanged, Threaded, or Wafer |
| Working Temperature | -20°C to +120°C (customizable) |
| Body Material | Cast Iron / Ductile Iron / Stainless Steel |
| Seat Material | NBR / FKM / PTFE (optional) |
| Standard | ISO 9001, GB/T 12236 |
Key Features & Benefits:
- Vertical Lift Design: The disc moves vertically away from the seat, providing a straight-through flow path that reduces turbulence and pressure loss. This design is ideal for hydraulic oil return lines where low resistance is critical.
- Reliable Sealing Performance: The valve achieves a bubble-tight shut-off, preventing reverse flow and protecting pumps and actuators from damage. The precision-machined seat and disc ensure consistent sealing over thousands of cycles.
- Durable Construction: All components are manufactured from high-quality materials. The body is available in cast iron (standard) or stainless steel (for corrosive environments). The internal spring (if equipped) is made of stainless steel, offering excellent fatigue resistance.
- Standard Compliant: Our valves are designed and tested according to ISO 9001 quality management system and relevant industry standards. Each valve undergoes a hydrostatic pressure test and a seat leakage test before shipment.
- Easy Installation & Maintenance: The vertical lift check valve can be installed in any orientation (vertical or horizontal) with proper support. The simple internal structure allows for quick disassembly and cleaning if needed.
- Wide Application Range: Specifically designed for hydraulic station oil return lines, but also suitable for water, oil, and gas systems in industrial pipelines, power plants, and machinery.
- Customizable Options: We offer various sizes, pressure ratings, materials, and end connections to meet specific project requirements. Optional features include locking devices, position indicators, and special coatings.
Why Choose Shanghai Zhibang Valve?
As a manufacturer with over 8 years of experience, we have established a strong reputation for delivering reliable valves at competitive prices. Our annual export value of US$1 million to US$1.5 million demonstrates the trust of international customers. We serve markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our factory is conveniently located in Shanghai, with easy access to the ports of Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery worldwide. We are ISO 9001 certified, which guarantees that our production processes and quality control meet international standards. Every valve is backed by our commitment to customer satisfaction, and we offer technical support for installation and troubleshooting.
For your hydraulic station oil return line, our vertical lift check valve delivers the performance and reliability you need. Contact us today for a quote or to discuss your specific requirements. We look forward to partnering with you for your next project.
Frequently Asked Questions
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What is the difference between a vertical lift check valve and a swing check valve?
A vertical lift check valve has a disc that moves vertically up and down, guided by a stem. It provides a more compact design and is better suited for higher pressure applications and systems where low flow resistance is required. Swing check valves have a hinged disc that swings open, which can cause slamming in some conditions. -
Can this valve be used for water or other fluids besides hydraulic oil?
Yes, the valve is suitable for clean water, oil, and other non-corrosive fluids within the specified temperature and pressure ranges. For corrosive media, we recommend selecting a stainless steel body and appropriate seat materials. -
What is the maximum working pressure for this valve?
The standard pressure ratings are PN16 (16 bar), PN25 (25 bar), and PN40 (40 bar). For higher pressure requirements, please contact us for custom solutions. -
Is the valve maintenance-free?
The valve is designed for long service life with minimal maintenance. However, periodic inspection of the seal and spring is recommended, especially in systems with high particulate content. The internal parts are easily accessible for cleaning or replacement. -
Do you provide certificates of material or test reports?
Yes, we can provide material certificates, hydrostatic test reports, and seat leakage test reports upon request. Our ISO 9001 system ensures traceability of all production batches. -
What are the available connection types?
We offer flanged (GB, ANSI, DIN, JIS), threaded (NPT, BSP), and wafer connections. The flanged type is most common for hydraulic station applications. -
How long is the delivery time?
For standard sizes, the delivery time is typically 15–30 working days after order confirmation. Larger quantities or custom sizes may require longer lead times. Please inquire for specific deadlines. -
Can I get a sample before mass order?
Yes, we welcome sample orders for evaluation. The sample cost and shipping fees will be discussed, and we can provide technical drawings or 3D models for your review.
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