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Help CenterFlanged Marine Steam PRV Cast Steel DN15-DN100 PN1.6-6.4MPa DNV BV Approved for Ship Systems
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 with an annual export value of US$1–1.5 million, proudly presents our Flanged Marine Steam PRV (Pressure Reducing Valve) in cast steel, covering sizes DN15 to DN100 and pressure ratings from PN1.6 to 6.4 MPa. This valve is designed specifically for ship systems, holding DNV and BV type approvals, ensuring compliance with the highest marine industry standards. Our PRV offers precise pressure regulation, robust construction, and long-term reliability, making it an ideal choice for steam distribution systems on vessels, offshore platforms, and marine engineering projects.
Key Features & Technical Specifications
- Material Excellence: Cast steel body (WCB or equivalent) provides high strength and corrosion resistance in marine environments.
- Flanged Connection: Standard ANSI/DIN flanges for easy installation and leak-proof sealing.
- Wide Size & Pressure Range: DN15–DN100, PN1.6–6.4 MPa (150–600 lbs class), suitable for various steam flow requirements.
- Accurate Pressure Control: Pilot-operated or direct-acting design ensures stable downstream pressure despite upstream fluctuations.
- Marine Certifications: DNV (Det Norske Veritas) and BV (Bureau Veritas) approved, meeting classification society rules for ship systems.
- Durable Internals: Stainless steel trim, reinforced diaphragm, and hardened seat for extended service life.
- Low Maintenance: Simple construction with easily replaceable parts reduces downtime.
| Parameter | Value |
| Nominal Size | DN15 – DN100 (1/2" – 4") |
| Pressure Rating | PN1.6 – 6.4 MPa (Class 150 – 600) |
| Body Material | Cast Steel (WCB, LCB, or custom) |
| End Connection | Flanged (RF, FF, RTJ) |
| Operating Temperature | Up to 400°C (depending on pressure) |
| Certifications | DNV, BV, ISO9001:2015 |
Customer Benefits
- Enhanced Safety: Reliable pressure reduction prevents overpressure in downstream equipment, protecting crew and cargo.
- Energy Efficiency: Precise regulation minimizes steam waste, reducing fuel consumption and operating costs.
- Global Compliance: DNV/BV approvals simplify shipyard acceptance and classification society inspections worldwide.
- Versatile Application: Suitable for steam systems on tankers, bulk carriers, offshore platforms, and navy vessels.
- Fast Delivery: Stocked sizes and materials ensure quick turnaround for urgent projects.
Why Choose Shanghai Zhibang Valve?
Since 2016, we have supplied valves to over 20 countries across North America, South America, Europe, Asia, Africa, and Oceania. Our ISO9001-certified facility in Shanghai ensures strict quality control from raw material to finished product. With an annual export value exceeding US$1 million, we have built a reputation for reliable delivery and competitive pricing. Each flanged marine steam PRV undergoes hydrostatic testing, seat leakage testing, and functional inspection before shipment. We also offer customization options such as special trim materials, extended bonnets, or actuator mounting upon request.
Frequently Asked Questions (FAQ)
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What is the typical delivery time for this PRV?
Standard sizes (DN15–DN50) are usually shipped within 15–20 working days. Larger sizes or custom orders may require 25–35 days. -
Can this valve be used for superheated steam?
Yes, with appropriate material selection (e.g., alloy steel trim) and temperature rating. Please consult our technical team for specific requirements. -
Do you provide third-party inspection?
Yes, we can arrange DNV, BV, or other classification society inspection at our factory prior to shipment. -
What is the minimum order quantity (MOQ)?
MOQ is 1 piece for standard sizes. For custom pressure ratings or materials, MOQ may be negotiable. -
Is the valve suitable for seawater or other corrosive media?
For marine steam applications, the valve is designed for steam only. If used with corrosive media, optional stainless steel or duplex body is available upon request. -
How do you ensure the valve maintains accurate downstream pressure over time?
Our PRV uses a balanced piston or diaphragm design with a pilot control, which compensates for upstream pressure changes and wear, providing stable regulation. -
Can I get a sample valve before placing a bulk order?
Yes, sample orders are welcome. We can provide a sample with same specifications as production units. -
What warranty do you offer?
We offer a 12-month warranty from the date of shipment against manufacturing defects, excluding normal wear and misuse.
Trust & Reliability – With ISO9001 certification and DNV/BV product approvals, Shanghai Zhibang Valve is your trusted partner for marine steam system components. Our experienced team ensures that every valve meets the rigorous demands of shipbuilding and offshore industries. Contact us today for a quotation or technical consultation – we are ready to support your project with quality products and prompt service.
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