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Home > Industrial Equipment & Components > Valve > Check Valve > PN1.0-1.6MPa Marine Dual Plate Check Valve for Compressed Air, Cast Iron, Rubber Seal, DN50-DN200, Wafer, CCS Certified
PN1.0-1.6MPa Marine Dual Plate Check Valve for Compressed Air, Cast Iron, Rubber Seal, DN50-DN200, Wafer, CCS Certified
Product Spotlights
CCS-certified marine dual plate check valve for compressed air systems. Cast iron body with rubber seal, wafer connection DN50-DN200, PN1.0-1.6MPa. Compact design reduces water hammer, low pressure drop, and easy installation. Backed by ISO9001 factory and global shipping from China.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Cast Iron (GG25 or equivalent)
Application:
Other, Marine compressed air systems
Pressure Rating:
PN1.0 - 1.6 MPa
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Cast Iron (GG25 or equivalent)
Application
Other, Marine compressed air systems
Pressure Rating
PN1.0 - 1.6 MPa
Seal Material
Rubber (NBR/EPDM)
Size Range
DN50 - DN200
Connection Type
Wafer (between flanges)
Standard/Certification
CCS Certified, ISO9001
Design
Dual plate, short face-to-face
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 with annual export value reaching US$1–1.5 million, presents our PN1.0-1.6MPa Marine Dual Plate Check Valve. Designed specifically for compressed air applications in marine environments, this valve combines robust cast iron construction with reliable rubber seals. Available in wafer style from DN50 to DN200, it is CCS certified and manufactured under ISO9001 quality management system, ensuring dependable performance and long service life onboard ships.
Key Features & Technical Specifications
- Dual Plate Design – Offers quick closing response and minimized water hammer effect, ideal for pulsating flow in compressed air lines.
- Cast Iron Body – High strength, excellent corrosion resistance in marine atmosphere; available with epoxy coating for extra protection.
- Rubber Sealing – NBR or EPDM seals ensure bubble-tight shut-off against air and water media; temperature range -10°C to +80°C (optional higher).
- Wafer Connection – Compact design fits between flanges, saving space and reducing weight, easy installation and maintenance.
- Pressure Rating – PN1.0 and PN1.6 MPa (150# class optional) cover most marine compressed air system requirements.
- Full Range – DN50, DN65, DN80, DN100, DN125, DN150, DN200 available with standard flange drilling to EN 1092-2.
- Low Pressure Drop – Streamlined disc profile reduces head loss, improving system efficiency.
| Parameter | Value |
|---|---|
| Nominal Diameter | DN50 – DN200 |
| Pressure Rating | PN1.0 / PN1.6 MPa (10/16 bar) |
| Body Material | Cast Iron (EN-GJL-250) |
| Seal Material | NBR / EPDM (customizable) |
| Temperature Range | -10°C to +80°C (NBR); -20°C to +120°C (EPDM optional) |
| Face-to-Face Length | EN 558-1 Series 16 (DIN 3202 F4) |
| Certification | CCS, ISO9001 |
| Application Medium | Compressed air, fresh water, seawater (depending on seal) |
Advantages for Your Marine System
- Space-Saving Installation – The wafer design eliminates extra flanges, reducing overall footprint on pipework – critical in engine rooms and cramped marine spaces.
- Quick Response – Spring-assisted discs close instantly upon reverse flow, preventing backflow damage to compressors and air receivers.
- Corrosion Resistance – Cast iron with optional anti-corrosion coating withstands salt spray and humidity, meeting marine environment standards.
- Easy Maintenance – Replaceable rubber seat and disc assembly allow on-site servicing without removing the entire valve from the line.
- Wide Acceptance – CCS certified ensures compliance with China Classification Society rules; also available with ABS, DNV, BV upon request.
Why Choose Shanghai Zhibang Valve?
With years of experience serving global marine markets including North America, Europe, Southeast Asia, and Africa, we have supplied thousands of check valves to shipbuilders and offshore contractors. Our factory in Shanghai operates under strict ISO9001 quality control, and every valve undergoes hydrostatic and pneumatic testing before shipment. We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, ensuring timely delivery worldwide.
Contact us today for competitive pricing and technical support for your marine compressed air systems. We offer customization on sealing materials, coating, and testing requirements.
Frequently Asked Questions (FAQ)
-
Q: Can this valve be used for seawater or fresh water?
A: Yes, the standard rubber seal (NBR) is suitable for fresh water and compressed air. For seawater applications, EPDM seal is recommended – please specify when ordering. -
Q: What is the maximum working temperature?
A: With NBR seal, the maximum temperature is 80°C. An EPDM option can handle up to 120°C, suitable for hot air systems. Confirm your medium temperature profile with our sales team. -
Q: Is the valve suitable for vertical or horizontal installation?
A: The dual plate check valve can be installed in both horizontal and vertical pipelines (flow direction upward). For vertical downward flow, a spring assist is recommended – our standard design includes spring-loaded discs. -
Q: Do you provide other certifications like ABS, DNV, or BV?
A: We can arrange for additional classification society certifications (ABS, DNV, BV, LR, etc.) upon request at extra cost. The standard product comes with CCS certificate. -
Q: What is the normal delivery time?
A: For standard sizes DN50-DN200, stock items can be shipped within 7–15 days after confirmation. Custom orders may require 25–35 days depending on quantity and certification requirements. -
Q: What face-to-face dimensions does this valve conform to?
A: It follows EN 558-1 Series 16 (DIN 3202 F4) short pattern. Please provide your flange standard (EN, ASME, JIS) so we can match the drilling precisely. -
Q: Can you supply valves with coated body for extra corrosion protection?
A: Yes, we offer internal and external epoxy coating (FBE) or zinc-rich primer. This is especially recommended for offshore environments. Please indicate your requirement. -
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is typically 1 piece for standard sizes. For special materials or certifications, a larger order may be required. Contact us for details.
Note: All specifications are subject to change without prior notice. Please confirm with our engineers for your specific application.
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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