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Help CenterMarine Flanged Butterfly Check Valve With Replaceable Seal Kit and Extended Warranty
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a trusted manufacturer dedicated to delivering high-performance valve solutions for marine and industrial applications. Our Marine Flanged Butterfly Check Valve with Replaceable Seal Kit and Extended Warranty integrates advanced engineering with practical maintenance features, ensuring reliable backflow prevention even in the harshest marine environments. Designed to minimize downtime, this valve offers a replaceable seal kit that extends service life, while the extended warranty provides added peace of mind for vessel operators and system engineers.
The butterfly check valve combines the compact design of a butterfly valve with the automatic backflow prevention function of a check valve. It is flanged for easy installation between pipe flanges, making it ideal for seawater cooling systems, ballast water management, fire fighting lines, and other marine piping systems. The replaceable seal kit allows quick on-site maintenance without removing the entire valve from the pipeline, reducing maintenance costs and operational interruptions.
Key Features & Technical Specifications
- Low Pressure Drop: Streamlined disc design minimizes flow resistance, reducing energy consumption.
- Flanged Connection: Compatible with ANSI, DIN, and JIS standards for global marine applications.
- Replaceable Seal Kit: EPDM, NBR, or Viton seals can be swapped without special tools, prolonging valve life.
- Extended Warranty: Optional extended coverage available upon request, demonstrating our confidence in product durability.
- Corrosion Resistance: Durable coatings and materials (ductile iron, stainless steel) designed for saltwater environments.
- Bidirectional Sealing: Provides reliable shut-off in both directions when combined with actuator (optional).
- Lightweight Compact Design: Reduces installation space and weight compared to traditional swing check valves.
| Parameter | Specification |
|---|---|
| Nominal Diameter | DN50 – DN600 |
| Pressure Rating | PN10, PN16, Class 150 |
| Operating Temperature | -20°C to +120°C (depending on seal) |
| Body Material | Ductile Iron (GGG40), Stainless Steel (CF8M) |
| Seal Material Options | EPDM, NBR, Viton |
| Face-to-Face Standard | EN 558, API 609, or custom |
| Certification | ISO9001 |
The replaceable seal kit is a standout feature. Traditional check valves often require complete replacement when the seal wears out, leading to high costs and prolonged shutdown. With this valve, maintenance personnel simply replace the seal kit in minutes, using common hand tools. The kit includes a pre-assembled seal ring and retaining components, ensuring a perfect fit every time. This design extends the overall valve lifespan by up to 50%, as confirmed by our field testing data. Additionally, the extended warranty option (available upon request) covers the valve body and replaceable parts for up to 5 years, subject to terms.
Advantages for Marine Operations
- Reduced Downtime: Fast seal replacement keeps systems running. In emergency situations, spare seal kits can be stocked onboard.
- Lower Total Cost of Ownership: Fewer replacements needed, and warranty coverage reduces unplanned expenses.
- Versatile Media Compatibility: Suitable for seawater, freshwater, oil, and air services with appropriate seal material selection.
- Compliance with Marine Standards: Meets ISO9001 quality management requirements; can be supplied with material certificates and test reports upon request.
Trust Shanghai Zhibang Valve Manufacture Co., Ltd. – a reliable manufacturer with annual export value of USD 1-1.5 million, serving markets across North America, Europe, Asia, Africa, and Oceania. Our ISO9001-certified production ensures consistent quality. We ship from Shanghai, Guangzhou, Hongkong, and Beijing ports, offering flexible logistics. The Marine Flanged Butterfly Check Valve with Replaceable Seal Kit and Extended Warranty has been widely adopted by shipyards and offshore operators, who appreciate its maintenance-friendly design and robust performance. Contact us today for a quotation or technical consultation – we are ready to support your marine valve requirements with customized solutions and prompt service.
Frequently Asked Questions (FAQ)
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Q: What is the main advantage of a replaceable seal kit?
A: It allows you to replace the sealing element without removing the entire valve from the pipeline, saving time and labor costs. The seal kit includes all necessary parts for a quick swap. -
Q: Can the valve be used in seawater systems?
A: Yes, with the proper seal material (EPDM or Viton) and body material (ductile iron with epoxy coating or stainless steel), the valve is suitable for seawater applications. -
Q: What warranty do you offer?
A: Standard warranty is one year. An extended warranty is available upon request, covering the valve body and replaceable seal kit for up to five years, depending on application conditions. -
Q: Is the valve bidirectional?
A: The check function is unidirectional (flow direction is indicated by an arrow). However, the butterfly disc can be used for shut-off in both directions if an actuator is fitted (optional). -
Q: What flange standards are available?
A: We offer ANSI 150, PN10/PN16, and JIS 10K/16K flanges. Other standards can be custom-made upon request. -
Q: How long does it take to replace the seal kit?
A: Typically 15-30 minutes by a trained technician using basic tools. Detailed instructions are provided with each kit. -
Q: Do you provide material certificates?
A: Yes, material certificates and test reports are available upon request at the time of order. -
Q: What is your minimum order quantity?
A: Minimum order quantity is flexible; for small quantities please contact our sales team for confirmation.
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