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Standard Compliant Marine Silent Check Valve, Free Replacement for Defects, Cast Body, Wafer Connection
Product Spotlights
Marine silent check valve with cast body & wafer connection, ISO9001 certified, free replacement for defects. Spring-loaded silent closure eliminates water hammer. Durable materials for seawater/freshwater. Compact design saves space. Customizable pressure/temperature. Trusted by global industries since 2016.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Cast Iron / Ductile Iron / Bronze
Application:
Other, Marine / Shipbuilding / Industrial Piping
Standard:
Other, ISO9001 Certified, Meets Marine Standards
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Cast Iron / Ductile Iron / Bronze
Application
Other, Marine / Shipbuilding / Industrial Piping
Standard
Other, ISO9001 Certified, Meets Marine Standards
Connection
Wafer (Wafer Type)
Type
Silent Check Valve (Spring Loaded)
Pressure Rating
PN10 / PN16 / Class 150
Temperature Range
-10°C to 80°C (Customizable)
Size Range
DN50 to DN600
Warranty
Free Replacement for Defects
Operation
Silent, Low Pressure Drop
Shanghai Zhibang Valve Manufacture Co., Ltd. (established 2016) is a professional manufacturer specializing in high-performance marine valves. Our Standard Compliant Marine Silent Check Valve is engineered to deliver reliable, whisper-quiet operation in demanding marine and industrial environments. With a robust cast body and wafer connection design, this valve ensures easy installation, minimal maintenance, and long service life. Backed by our ISO9001 quality management system and a free replacement policy for defects, you can trust this product to meet your exacting standards.
Designed to prevent backflow and eliminate water hammer, our silent check valve uses a spring-loaded disc that closes smoothly and silently, reducing noise and vibration. The wafer-type body saves space and weight compared to conventional swing check valves. Suitable for seawater, freshwater, oil, and other media, it is widely used in shipbuilding, offshore platforms, and industrial water treatment systems.
Key Features & Advantages
- Silent Operation: Spring-assisted disc ensures quick, noise-free closure, preventing water hammer and protecting downstream equipment.
- Cast Body Construction: Durable cast iron, ductile iron, or bronze body provides high strength and corrosion resistance for marine applications.
- Wafer Connection: Compact design fits between flanges, reducing installation space and overall system weight.
- Standard Compliant: Manufactured in accordance with international marine standards, with ISO9001 certification for consistent quality.
- Free Replacement for Defects: We offer a hassle-free replacement policy for any manufacturing defects, giving you peace of mind.
- Low Pressure Drop: Streamlined flow path minimizes resistance, improving system efficiency.
- Easy Maintenance: Simple construction and accessible parts allow quick inspection and servicing.
- Wide Media Compatibility: Suitable for seawater, fresh water, oil, gas, and other non-aggressive fluids.
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Size Range | DN50 – DN600 (2" – 24") |
| Pressure Rating | PN10, PN16, Class 150 (custom available) |
| Temperature Range | -10°C to +80°C (optional up to 150°C) |
| Body Material | Cast Iron (GG25), Ductile Iron (GGG40), Bronze |
| Disc Material | Stainless Steel (SS304/SS316), Bronze |
| Spring Material | Stainless Steel (SS316) |
| Connection | Wafer type (between flanges) |
| Sealing | Metal-to-metal or soft seal (optional) |
| Applicable Standards | ISO9001, GB/T, API (optional) |
Why Choose Our Marine Silent Check Valve?
- Proven Reliability: Our valves have been installed in hundreds of vessels and offshore projects globally, ensuring trouble-free operation.
- Cost-Effective: The wafer design reduces material and installation costs, while the durable construction minimizes replacement frequency.
- Customization Available: We offer different materials, pressure classes, and sealing options to match your specific requirements.
- Fast Delivery: With warehouses in Shanghai, Guangzhou, and Beijing, we can ship promptly to any major port worldwide.
- Technical Support: Our experienced engineers provide pre-sales and after-sales assistance to ensure optimal valve selection and performance.
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a trusted supplier since 2016, with an annual export value of US$1–1.5 million. We serve markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our ISO9001 certification guarantees rigorous quality control from raw material to finished product. All valves undergo strict pressure and sealing tests before shipment.
We are confident in the quality of our product. That's why we offer a free replacement for any manufacturing defects, no questions asked. Combined with our competitive pricing and responsive customer service, you can count on us as a long-term partner.
Contact us today for a quotation or technical consultation. Let us help you secure a smooth, silent, and reliable flow system for your marine or industrial application.
Frequently Asked Questions (FAQ)
- Q1: What makes this check valve “silent”?
- A: The spring-loaded disc closes gently and quickly as flow decreases, eliminating the slamming action common in swing check valves. This prevents water hammer and noise.
- Q2: Can this valve be used in seawater systems?
- A: Yes, when ordered with bronze body and stainless steel internals, it is highly resistant to seawater corrosion. Cast iron versions are suitable for freshwater.
- Q3: What is the warranty policy?
- A: We provide free replacement for any defects in material or workmanship. Please refer to our standard warranty terms for conditions.
- Q4: Do you offer custom sizes or pressure ratings?
- A: Yes, we can customize the valve to meet your specific requirements, including non-standard sizes, higher pressure classes, and special materials. Contact our sales team.
- Q5: How is the valve installed? Is it suitable for horizontal or vertical piping?
- A: The wafer check valve can be installed in both horizontal and vertical pipelines (flow upward). Proper orientation is important; please consult the installation manual.
- Q6: What certifications do your valves have?
- A: Our manufacturing facility is ISO9001 certified. The valves are designed to meet marine standards and can be supplied with material certificates upon request. Additional certifications like ABS or DNV can be arranged at extra cost.
- Q7: What is the typical lead time?
- A: For standard sizes, lead time is 15-25 days. Custom orders may require 30-45 days depending on complexity.
- Q8: Can I get a free sample before bulk order?
- A: Yes, we offer paid samples that are refundable upon bulk order. Contact us to discuss sample policy.
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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