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Help CenterForged Steel Marine Check Valve PN100 for Ship Ballast Systems, Flanged DN15-DN80
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Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our Forged Steel Marine Check Valve PN100, specifically engineered for ship ballast systems. As a trusted manufacturer since 2016, we combine robust forging technology with precise machining to deliver valves that withstand harsh marine environments. This check valve ensures unidirectional flow, preventing backflow that could damage pumps and pipelines, thereby enhancing the safety and efficiency of your ballast operations. With a pressure rating of PN100 and flanged connections from DN15 to DN80, it is the ideal choice for high-pressure seawater systems in vessels of all sizes.
Key Features & Technical Specifications
- Superior Material: Constructed from high-quality forged steel (ASTM A105 or equivalent), offering excellent strength and corrosion resistance against seawater.
- Compact & Lightweight: Forged construction reduces weight while maintaining high pressure integrity – critical for space-constrained marine applications.
- Reliable Closure: Swing-type disc with metal-to-metal or optional soft seat ensures tight sealing and low pressure drop.
- Easy Maintenance: Flanged ends allow quick installation and removal without special tools.
- Wide Size Range: Available in DN15, DN20, DN25, DN32, DN40, DN50, DN65, and DN80 – matching common ship ballast piping.
- Pressure Rating: PN100 (approx. 100 bar / 1450 psi) suitable for high-pressure ballast systems.
- Temperature Range: Standard -20°C to 400°C; extended range available upon request.
- Certifications: Manufactured under ISO9001 quality management system, ensuring consistent performance.
| Parameter | Specification |
|---|---|
| Nominal Diameter | DN15 – DN80 |
| Pressure Class | PN100 (100 bar) |
| Connection | Flanged (RF / FF) per EN 1092-1 or ASME B16.5 |
| Body Material | Forged Steel (A105, LF2 optional) |
| Disc Material | Stainless Steel 304/316 or Forged Steel |
| Seat Material | Metal (Stellite overlay optional) or PTFE soft seat |
| Operation | Automatic (non-return) |
Advantages for Ship Ballast Systems
Our forged steel check valve delivers several benefits tailored to marine environments:
- Anti-Backflow Protection: Prevents seawater from returning to ballast tanks during rough seas, avoiding contamination and pressure surges.
- Durability: Forged body resists cracking under vibration and thermal cycling common in engine rooms.
- Low Maintenance: Simple swing design with few moving parts reduces failure points and service downtime.
- Compliance: Meets international marine classification society requirements (ABS, DNV GL, Lloyds – optional documentation available).
- Corrosion Resistance: Available with epoxy coating or stainless steel trim for long life in seawater.
Trusted by Global Shipping Industry
Shanghai Zhibang Valve Manufacture Co., Ltd. has been delivering high-quality valves since 2016, with an annual export value of US$1 Million - US$1.5 Million. Our products are shipped through major ports including Shanghai, Guangzhou, Hong Kong, and Beijing. We serve markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. All our valves are produced under an ISO9001 certified quality system, ensuring rigorous control from raw material to final testing. With a strong reputation for reliability, we invite you to experience the performance of our forged steel marine check valve – a durable solution for your ballast system needs. Contact us today for a quote or technical consultation. We are ready to support your vessel with top-quality products and competitive pricing.
Frequently Asked Questions (FAQ)
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Q: Can this valve be used for other media besides seawater?
A: Yes, it is suitable for water, oil, gas, and steam. For special media like chemicals, please consult us for material compatibility. -
Q: Is the valve available with a soft seat for tighter shut-off?
A: Yes, we offer PTFE or other elastomer seats as optional. Soft seat provides bubble-tight sealing but limits temperature range. -
Q: What flange standards does the valve conform to?
A: Standard flanges are drilled per EN 1092-1 (PN100) or ASME B16.5 Class 600. Other standards are available upon request. -
Q: Do you provide test certificates and material certificates?
A: Yes, we provide material certificates (EN 10204 3.1) and hydrostatic test reports with each order. Third-party inspection is also acceptable. -
Q: What is the typical lead time for DN50 size?
A: For standard sizes, lead time is 15-30 days depending on quantity. We maintain stock for popular sizes. -
Q: Can the valve be installed vertically or horizontally?
A: The swing check valve is best installed horizontally with the disc hinge pin vertical. Vertical installation is possible with upward flow direction. -
Q: Does the valve require any special maintenance?
A: Regular visual inspection and occasional cleaning of the seating area are sufficient. Lubrication is not required. -
Q: Is the valve approved by classification societies like DNV or ABS?
A: We can supply valves with certification from major classification societies upon request. Please specify your requirement when ordering.
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