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Help CenterVertical Lift Check Valve Hydraulic Oil Return Line Female Threaded BSPP 1/2" 350Bar
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As a trusted manufacturer since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Vertical Lift Check Valve designed specifically for hydraulic oil return lines. This valve features a female threaded BSPP 1/2" connection and is rated at 350 Bar, ensuring reliable performance in demanding hydraulic systems. Built with precision engineering and backed by our ISO9001 certification, this check valve offers a compact, durable solution for preventing backflow in oil return circuits.
Our valve is manufactured using high-grade materials and undergoes strict quality control to meet international standards. The vertical lift design minimizes pressure drop and provides quick, positive sealing, making it ideal for hydraulic power units, machine tools, and industrial equipment. With an annual export value exceeding US$1 million and a global customer base across North America, Europe, Asia, and Oceania, we are committed to delivering products that enhance system efficiency and longevity.
Key Features & Technical Specifications
- Vertical Lift Mechanism: Ensures smooth, low-friction operation and reliable sealing even under low flow conditions.
- High Pressure Capacity: Rated at 350 Bar (5076 psi), suitable for heavy-duty hydraulic systems.
- BSPP Female Thread: Conforms to British Standard Pipe Parallel thread, easy to install with standard fittings.
- Compact Design: Space-saving construction ideal for tight installations in oil return lines.
- Durable Material: Available in carbon steel or stainless steel (optional), with corrosion-resistant coating.
- Zero Leakage: Precision lapped sealing surfaces ensure minimal internal leakage.
| Parameter | Specification |
| Size | 1/2" (DN15) |
| Thread Standard | BSPP (ISO 228-1) |
| Max Working Pressure | 350 Bar |
| Operating Temperature | -20°C to +80°C (customizable available) |
| Body Material | Carbon Steel (optional: Stainless Steel 304/316) |
| Seal Material | NBR (optional: FKM for high temperature) |
| Application | Hydraulic oil return lines, lubrication systems |
Product Advantages & Customer Benefits
This vertical lift check valve offers several advantages over traditional swing or spring-loaded check valves:
- Reduced Pressure Drop: The vertical lift disc moves axially, resulting in a lower pressure drop across the valve compared to swing types.
- Silent Operation: No slamming or water hammer effects, making it suitable for noise-sensitive environments.
- Easy Maintenance: The simple internal design allows for quick cleaning or seal replacement without removing the valve body.
- Versatile Mounting: Can be installed in any orientation (vertical or horizontal) without affecting performance.
- Cost-Effective: Competitive pricing without compromising on quality, thanks to our efficient manufacturing process.
By choosing our valve, customers benefit from extended equipment life, reduced downtime, and improved system efficiency. The BSPP thread ensures compatibility with a wide range of hydraulic fittings, simplifying procurement and installation.
Trust & Commitment
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a reliable partner in the fluid control industry since 2016. We export over US$1 million worth of valves annually to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our ISO9001-certified quality management system ensures every valve meets strict performance criteria. We ship from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, providing flexible logistics to global customers.
We stand behind the quality of our vertical lift check valve. Each unit is pressure-tested before shipment, and we offer comprehensive technical support. For bulk orders or custom specifications (e.g., different thread types, materials, or pressure ratings), we welcome your inquiry. Contact us today to discuss your hydraulic system requirements and experience the reliability of Shanghai Zhibang valves.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum working pressure of this valve?
A: The valve is rated for 350 Bar (5076 psi). It is suitable for high-pressure hydraulic oil return lines. -
Q: Can this valve be used for fluids other than hydraulic oil?
A: While designed for oil, it can be used with compatible fluids such as water-glycol, mineral oils, and synthetic lubricants. Please consult our technical team for specific media compatibility. -
Q: Is the valve suitable for vertical installation?
A: Yes, the vertical lift design allows installation in any orientation, though vertical mounting is recommended for optimal performance. -
Q: What is the difference between BSPP and BSPT threads?
A: BSPP (British Standard Pipe Parallel) has parallel threads and seals with a washer or O-ring, while BSPT (tapered) seals through thread interference. Our valve uses BSPP threads for leak-free sealing with a bonded seal. -
Q: Does the valve come with a warranty?
A: Yes, we offer a standard 12-month warranty against manufacturing defects. Extended warranty is available upon request. -
Q: Are stainless steel versions available?
A: Yes, we offer optional stainless steel 304 or 316 material for corrosive environments. Please specify when ordering. -
Q: How is the valve tested before shipment?
A: Each valve undergoes a hydrostatic pressure test at 1.5 times the rated pressure (525 Bar) and a seat leakage test at 350 Bar to ensure zero leakage. -
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is 50 pieces for standard sizes. Samples are available for testing, with sample cost refundable on bulk orders.
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