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Home > Industrial Equipment & Components > Valve > Check Valve > DN50-DN150 Marine Check Valve for Steam System, Carbon Steel Body, Metal Seal, PN1.6-6.4MPa, Flanged Connection, DNV Approved
DN50-DN150 Marine Check Valve for Steam System, Carbon Steel Body, Metal Seal, PN1.6-6.4MPa, Flanged Connection, DNV Approved
Product Spotlights
DN50-150 carbon steel marine check valve with metal seal, DNV approved. Suitable for steam systems up to PN6.4 MPa. Flanged connection, durable, low maintenance. Factory direct with ISO9001 quality assurance.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Application:
Other, Steam systems
Standard:
Other, DIN, ANSI, JIS, or customer specified
Size Range:
DN50 - DN150 (2“ - 6“)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Steam systems
Standard
Other, DIN, ANSI, JIS, or customer specified
Size Range
DN50 - DN150 (2“ - 6“)
Body Material
Carbon Steel (WCB or equivalent)
Seal Material
Metal (Stainless Steel/Alloy)
Pressure Rating
PN1.6 - PN6.4 MPa (Class 150 - 300)
Connection Type
Flanged (RF or FF)
Certificate
DNV, ISO9001
Shanghai Zhibang Valve Manufacture Co., Ltd. is a professional manufacturer established in 2016, specializing in high-quality industrial valves. Our DN50-DN150 Marine Check Valve for Steam System is engineered to deliver reliable non-return performance in demanding marine and steam applications. Featuring a robust carbon steel body, metal seal, and flanged connection, this valve complies with pressure ratings from PN1.6 to PN6.4 MPa and carries DNV type approval, ensuring it meets the highest maritime standards.
Designed to prevent backflow in steam, condensate, and other high-temperature media, this check valve offers exceptional durability and low maintenance. The metal-to-metal seat provides a tight shut-off even under thermal cycling, while the flanged ends simplify installation into existing piping systems. Whether you need a NRV for a ship's boiler system or a process steam line, our valve delivers consistent performance.
Key Features & Benefits
- Durable Carbon Steel Body: Withstands high pressure and thermal stress, ideal for steam applications up to 400°C.
- Metal Seat Design: Provides a reliable seal without elastomers, suitable for high-temperature and corrosive media.
- Flanged Connection (RF/FF): Easy to install and remove, compatible with standard pipe flanges.
- Pressure Range PN1.6 - PN6.4 MPa: Covers a wide range of marine and industrial steam systems.
- DNV Type Approval: Certified for marine use, ensuring compliance with international classification society requirements.
- Low Pressure Drop: Streamlined flow path minimizes energy loss during normal operation.
- Compact & Lightweight: Available in sizes DN50 to DN150 for flexible system integration.
- Optional Coatings: Can be supplied with epoxy or zinc-rich paint for additional corrosion protection upon request.
Technical Specifications
| Parameter | Value |
|---|---|
| Size Range | DN50, DN65, DN80, DN100, DN125, DN150 |
| Pressure Rating | PN1.6 / PN2.5 / PN4.0 / PN6.4 MPa |
| Body Material | Carbon Steel (WCB / WCC) |
| Seal Material | Stainless Steel (13Cr / 304 / 316) |
| Connection | Flanged (RF per ANSI B16.5 or DIN EN 1092-1) |
| Design Standard | API 6D, BS 1868, DIN 3202 |
| Testing | Hydrostatic shell test, pneumatic seat test per API 598 |
| Temperature Range | -29°C to +400°C (depending on media) |
| Application | Steam, condensate, hot water, oil, gas |
Why Choose Our Marine Check Valve?
- Proven Performance: Thousands of units installed in marine and industrial steam systems worldwide.
- Quality Assurance: Our factory is ISO9001 certified, and each valve undergoes rigorous testing before shipment.
- Flexible Customization: Available with different face-to-face dimensions (short/long pattern), by-pass connections, or lifting lugs as options.
- Global Logistics: We ship from Shanghai, Guangzhou, Hongkong, and Beijing ports, ensuring timely delivery to North America, Europe, Asia, and beyond.
- After-Sales Support: Our technical team provides installation guidance, maintenance tips, and spare parts for the entire product life.
As a trusted manufacturer with an annual export value of US$1-1.5 million, Shanghai Zhibang Valve has supplied check valves to projects in over 20 countries. Our DNV-approved marine check valve is the preferred choice for shipbuilders and engineering contractors who demand reliability in steam systems. Contact us today for a competitive quotation or to discuss your specific requirements.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum operating temperature for this check valve?
A: The valve is designed for steam temperatures up to 400°C. For lower temperatures or other media, please consult our engineering team. -
Q: Can this valve be used for seawater or other corrosive fluids?
A: The standard version is carbon steel with metal seal. For seawater, we recommend optional epoxy coating or a stainless steel body. Contact us for tailored solutions. -
Q: Is the DNV certificate provided with each valve?
A: Yes, each valve can be supplied with DNV type approval certificate upon request. Standard production includes traceability to the certified design. -
Q: What flange standard does the valve comply with?
A: We offer flanges per ANSI B16.5 (Class 150/300) or DIN EN 1092-1 (PN16-PN64). Other standards like JIS or KS are available as per order. -
Q: What is the lead time for a DN100 PN40 valve?
A: Typical lead time is 15-25 working days for standard sizes. Larger or special orders may require 30-45 days. Please check our sales team for current availability. -
Q: Does the valve require regular maintenance?
A: Metal-seated check valves are low maintenance. We recommend an annual inspection of the disc and seat for wear, especially in continuous steam service. -
Q: Can the valve be installed vertically?
A: Yes, the swing-type design can be installed horizontally or vertically. However, vertical installation with upward flow is preferred for reliable closing. -
Q: What is the warranty period?
A: We offer a standard 12-month warranty from the date of shipment against manufacturing defects. Extended warranty is negotiable.
Shanghai Zhibang Valve Manufacture Co., Ltd. – Your reliable partner for marine and industrial valves. With ISO9001 certification and annual exports exceeding US$1 million, we deliver quality and on-time delivery. Request a quote now!
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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