Contact Platform Support
Help Center
Home > Industrial Equipment & Components > Valve > Check Valve > Marine Grade 316L Stainless Steel Dual Plate Check Valve, DN150, PN2.5MPa, Spring Loaded, Long Service Life
Marine Grade 316L Stainless Steel Dual Plate Check Valve, DN150, PN2.5MPa, Spring Loaded, Long Service Life
Product Spotlights
Marine-grade 316L stainless steel construction resists saltwater corrosion; spring-loaded dual plates prevent water hammer; wafer design saves space and weight; ISO9001 certified; long service life with replaceable springs; customized options available; global shipping from China ports.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, 316L Stainless Steel (Marine Grade)
Standard:
Other, ISO9001 Certified
Application:
Other, Marine
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Related Products
-
Ballast Water System Marine Dual Plate Check Valve, 316L SS, DN50-DN300, PN1.0-4.0MPa, LR ABS ApprovedNegotiableMOQ: 1 Unit -
Marine Dual Plate Check Valve Factory Direct Ductile Iron CCS Warranty Included MOQ 10 UnitsNegotiableMOQ: 1 Unit
-
LR ABS Certified Marine 316L Dual Plate Check Valve, DN80-DN300, PN16-PN40, Corrosion ResistantNegotiableMOQ: 1 Unit
-
Horizontal/Vertical Installation Marine Dual Plate Check Valve, 316L Stainless Steel, DN250, PN4.0MPaNegotiableMOQ: 1 Unit
-
Factory Direct Marine Stainless Steel Dual Plate Check Valve, 316L Material, LR ABS Certified, 12-Month GuaranteeNegotiableMOQ: 1 Unit
Material
Other, 316L Stainless Steel (Marine Grade)
Standard
Other, ISO9001 Certified
Application
Other, Marine
Size
DN150 (6 inch)
Pressure Rating
PN2.5MPa (Class 150 / 300)
Connection Type
Wafer (Between Flanges)
Type
Spring Loaded Dual Plate
Color
Natural Stainless Steel
Brand
Zhibang
Model
ZB-DCV-150-25
As a leading manufacturer with ISO9001 certification since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Marine Grade 316L Stainless Steel Dual Plate Check Valve, model DN150, PN2.5MPa, spring loaded design. This valve is engineered to deliver exceptional corrosion resistance and reliable backflow prevention in demanding marine environments. With annual export value exceeding US$1 Million, our products are trusted by clients across North America, Europe, Southeast Asia, and beyond. The spring-loaded dual plate mechanism ensures rapid closure and minimal pressure drop, offering a long service life even under continuous high-pressure operations.
Key Features & Benefits:
- Premium Material: Constructed from 316L stainless steel (marine grade), providing superior resistance to chloride corrosion, saltwater, and aggressive chemicals, making it ideal for offshore platforms, shipbuilding, and desalination plants.
- Spring-Loaded Dual Disc: The independent spring-loaded plates ensure immediate closure upon flow reversal, preventing water hammer and protecting downstream equipment. This design also allows for non-slam operation, reducing noise and vibration.
- Compact & Lightweight: Wafer-style body fits between standard flanges (PN2.5MPa), saving installation space and weight compared to swing check valves. Suitable for horizontal or vertical pipelines.
- Long Service Life: Hardened stainless steel springs and precision-machined hinge pins minimize wear. The valve undergoes 100% pressure testing and durability checks, ensuring trouble-free operation for years.
- High Pressure & Temperature Range: Rated for PN2.5MPa (≈362 psi) and operating temperature from -20°C to +230°C, compliant with ASME B16.34 and API 594 standards.
Technical Specifications:
| Parameter | Value |
|---|---|
| Nominal Size | DN150 (6 inch) |
| Pressure Rating | PN2.5MPa (Class 150/300) |
| Body & Disc Material | 316L Stainless Steel (EN 1.4404) |
| Spring Material | SS316L / Inconel X-750 (optional) |
| Connection | Wafer between flanges, ANSI B16.5 / DIN 2533 |
| Operating Temperature | -20°C to +230°C |
| Face-to-Face Length | EN 558 Series 49 / API 594 |
| Certification | ISO9001:2015 |
Installation & Maintenance Advantages:
- Bi-directional flow capability – can be installed in any orientation with correct spring direction.
- Low cracking pressure (typically 0.5-1.0 psi) ensures minimal energy loss.
- Quick and easy maintenance – the cartridge-style design allows spring and disc replacement without removing the valve body from the pipeline.
With over 7 years of manufacturing experience and an annual export value between US$1 Million and US$1.5 Million, Shanghai Zhibang Valve has supplied thousands of dual plate check valves to global clients. Our ISO9001 quality management system ensures every valve is thoroughly tested before shipment. We also offer customization options such as additional coatings (PTFE, ceramic), special spring materials, or non-standard flange drilling. Choose Zhibang for reliable, long-lasting, and cost-effective marine-grade check valves. Contact us today for a quotation or technical consultation – our team is ready to support your project from Shanghai, Guangzhou, Hongkong, or Beijing ports.
Frequently Asked Questions (FAQ):
-
Q: What media is this valve suitable for?
A: The 316L stainless steel dual plate check valve is ideal for seawater, brackish water, oil & gas, steam, and other corrosive fluids. It can also handle clean water, chemicals, and air, provided the temperature and pressure are within limits. -
Q: Can it be installed in a vertical pipeline?
A: Yes, the spring-loaded design allows installation in horizontal and vertical lines (flow upward). For horizontal pipelines, ensure the spring side is oriented correctly as per the marking on the body. -
Q: What is the difference between dual plate check valve and swing check valve?
A: Dual plate valves are more compact (wafer style), lighter, and have faster closing action with lower water hammer. Swing check valves are bulkier and slower, often used for larger diameters or high flow. -
Q: Is the spring replaceable?
A: Yes, the spring and discs are replaceable. The modular design allows easy access without removing the valve from the pipe. Replacements parts can be ordered separately. -
Q: What is the maximum pressure for DN150 PN2.5MPa?
A: PN2.5MPa corresponds to approximately 362 psi. The valve is tested to 1.5 times the rated pressure (3.75MPa) per ISO 5208. -
Q: Do you offer custom flange standards?
A: Yes, we can supply flanges to ANSI B16.5, DIN 2533, JIS B2220, or other standards upon request. Please specify your requirements. -
Q: What is the typical lead time?
A: For standard sizes like DN150, lead time is about 15-25 working days. Custom orders may take 30-45 days depending on quantity and specifications. -
Q: Do you provide test certificates?
A: Yes, we provide material certificates, pressure test reports, and ISO9001 quality documentation with every shipment. Third-party inspection is also available.
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
You May Also Like
-
Offshore Oil & Gas Platform Marine Stainless Steel Dual Plate Check Valve, Wafer Type, DN200, PN2.5MPaNegotiableMOQ: 1 Unit
-
1-Year Warranty Marine 316L Dual Plate Check Valve, With Mill Test Report, DN50-DN300, PN1.0-4.0MPaNegotiableMOQ: 1 Unit
-
Wafer Type Marine Dual Plate Check Valve Cast Iron Body DN80 PN16 Rated Stainless Steel Disc EPDM Seal RINA CertifiedNegotiableMOQ: 1 Unit
-
Marine Dual Plate Check Valve DN100 PN1.6MPa Cast Iron With Stainless Steel Disc and EPDM Seal BV ApprovedNegotiableMOQ: 1 Unit
-
Cast Iron Dual Plate Check Valve for Marine Seawater Systems DN150 PN10 Wafer End Stainless Steel Disc EPDMNegotiableMOQ: 1 Unit
-
DN200 Marine Dual Plate Check Valve Cast Iron PN1.0MPa Stainless Steel Disc EPDM Seal Sour Water ServiceNegotiableMOQ: 1 Unit
-
Dual Plate Check Valve for Marine Ballast Water System Cast Iron DN500 PN1.0MPa Stainless Steel Disc EPDM Seal 12 Months WarrantyNegotiableMOQ: 1 Unit
-
Marine Cast Iron Dual Plate Check Valve DN400 PN10 With Mill Test Report Stainless Steel Disc EPDM Seal BV RINANegotiableMOQ: 1 Unit
-
Dual Plate Check Valve Cast Iron Marine DN300 PN1.6MPa Wafer Connection Stainless Steel Disc EPDM Seal 1 Year WarrantyNegotiableMOQ: 1 Unit
-
Marine Dual Plate Check Valve DN250 PN16 Cast Iron Body With 304 Stainless Steel Disc EPDM Seal Standard CompliantNegotiableMOQ: 1 Unit
