Contact Platform Support
Help CenterGB/T3036 Marine Butterfly Valve for Seawater Systems, 316L Stainless Steel Disc & EPDM Seal, DN50-DN600
Product Spotlights
Related Products
-
PN16 Pressure Rated Marine Butterfly Valve, GB/T3036 Standard for Seawater Ballast and Bilge LinesNegotiableMOQ: 1 Unit -
Cast Iron Body Marine Butterfly Valve for Seawater, GB/T3036 Compliant, DN50 to DN600 SizesNegotiableMOQ: 1 Unit
-
Marine Butterfly Valve for Seawater Intake and Discharge Applications, GB/T3036 CompliantNegotiableMOQ: 1 Unit
-
GB/T3036 Standard Marine Butterfly Valve, PN0.6-1.6MPa Pressure Rating for Seawater PipingNegotiableMOQ: 1 Unit
-
GB/T3036 Marine Butterfly Valve for Seawater, Standard Compliant With Technical Support AvailableNegotiableMOQ: 1 Unit
As a professional valve manufacturer with extensive experience in the marine and industrial sectors, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance GB/T 3036 Marine Butterfly Valve. Engineered specifically for demanding seawater applications, this valve is built to withstand the harsh, corrosive marine environment while ensuring reliable, long-term operation for critical shipboard systems. Our commitment to quality, backed by ISO9001 certification and over eight years of manufacturing expertise, ensures every valve delivers the durability and performance required for global maritime operations. We understand that system failures at sea are not an option, which is why we design our valves with precision, using premium materials like 316L stainless steel and EPDM to guarantee dependability.
This butterfly valve is a cornerstone component for managing fluid flow in various seawater systems onboard vessels and offshore platforms. Its robust construction and specialized design address the unique challenges posed by saltwater, including corrosion, biofouling, and pressure fluctuations. The valve's core value lies in its ability to provide a secure shut-off and precise flow control in applications such as:
- Ballast Water Systems: For critical vessel stability and trim control.
- Seawater Cooling Circuits: For main engine, auxiliary engine, and HVAC system heat exchangers.
- Firefighting Systems: Ensuring immediate water supply for safety.
- Bilge and Drainage Systems: For effective water removal from hull spaces.
- Offshore Platform Seawater Intake/Discharge: For processing and utility systems.
Key Product Features & Technical Advantages:
The superiority of our marine butterfly valve is defined by its material selection, engineering design, and performance characteristics:
- Premium 316L Stainless Steel Disc: Offers exceptional resistance to pitting and crevice corrosion in chloride-rich seawater environments, far superior to standard 304 stainless steel.
- Resilient EPDM Seal (Seat): Provides a bubble-tight seal with excellent compatibility with seawater, resisting degradation from ozone, weathering, and a wide temperature range.
- Zero-Leakage Design: The precision-machined disc and resilient seat create a reliable bi-directional seal, preventing leakage in both flow directions, which is crucial for system integrity.
- Compact & Lightweight Wafer/Lug Body: Saves space and weight compared to gate valves, a critical factor in marine engineering. The lug design allows for end-of-line service or dead-end service without additional piping support.
- Low Torque Operation: The streamlined disc design minimizes flow resistance and operating torque, allowing for easier manual operation or smaller, more cost-effective actuators.
- Long Service Life & Low Maintenance: The corrosion-resistant materials and robust design significantly reduce wear, leading to lower lifecycle costs and less downtime for maintenance.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Standard | GB/T 3036 (Equivalent to common marine standards) |
| Size Range (Nominal Diameter) | DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
| Body & Disc Material | 316L (022Cr17Ni12Mo2) Stainless Steel |
| Stem Material | 316 Stainless Steel (Optional 17-4PH for high-strength) |
| Seat (Seal) Material | EPDM (Standard). NBR, Viton® available upon request. |
| Pressure Rating | PN10, PN16, PN25 (Selectable based on system design) |
| Temperature Range (with EPDM) | -20°C to +120°C |
| Connection Standard | Face-to-face dimensions per GB/T 3036. Flange drilling per ISO, ANSI, JIS, DIN, etc., customizable. |
| Operation Type | Manual Lever, Worm Gear, Pneumatic Actuator, Electric Actuator |
| Flow Characteristic | Approximately Equal Percentage |
Benefits for Our Clients:
- Enhanced System Reliability: Minimizes the risk of in-service failure, protecting valuable assets and ensuring operational continuity.
- Reduced Total Cost of Ownership: Durable materials extend maintenance intervals and replacement cycles, saving on labor and parts.
- Simplified Installation & Inventory: Standardized dimensions and a wide size range simplify procurement and installation processes.
- Compliance & Compatibility: Designed to meet common marine specifications, facilitating approval for use in new builds and retrofits.
- Flexible Configuration: Available with various operators and flange standards to match your specific system design.
Frequently Asked Questions (FAQ):
-
Q: Is this valve suitable for full seawater immersion or only for seawater piping?
A: The 316L/EPDM combination offers excellent corrosion resistance for continuous contact with flowing seawater within the piping system. For full, static immersion applications, material suitability should be verified based on specific water chemistry and aeration. -
Q: What is the main difference between a wafer-type and a lug-type body?
A: A wafer valve is installed between two flanges using through-bolts. A lug-style valve has threaded inserts (lugs) on both sides, allowing it to be bolted directly to each flange independently. This makes the lug type ideal for end-of-line service or when one side needs to be disconnected. -
Q: Can this valve be used for throttling (flow control) in seawater systems?
A: Yes, butterfly valves are well-suited for throttling. The approximately equal percentage flow characteristic provides good controllability, especially in the 30-70% open range. For precise control, pairing with a precision gear operator or actuator is recommended. -
Q: Are other seal materials available besides EPDM?
A: Absolutely. While EPDM is our standard for general seawater service, we can provide valves with NBR (Nitrile) for oil-resistant applications or FKM (Viton®) for higher temperature and chemical resistance, subject to request. -
Q: What actuator options do you offer, and can you supply them pre-mounted?
A: We offer a full range of actuation solutions: manual levers, worm gear operators, pneumatic actuators (double-acting or spring-return), and electric actuators. Yes, we can supply the valve and actuator as a pre-assembled, tested unit for plug-and-play installation. -
Q: What is your typical lead time for an order of DN150 valves?
A: Lead times vary based on order quantity and configuration. For standard DN150 valves with manual lever in stock materials, production can be relatively quick. We provide specific lead time quotes upon receipt of your detailed inquiry. -
Q: Do you provide documentation like material certificates and test reports?
A: Yes, as an ISO9001 certified manufacturer, we provide comprehensive documentation packages. This can include material test certificates (MTC), hydrostatic test reports, and dimensional inspection reports, which are often required for marine project approvals. -
Q: Can you customize the flange drilling pattern to match existing piping?
A: Certainly. We regularly produce valves with flange faces drilled to ISO, ANSI, JIS, DIN, and other international standards. Please provide the specific standard and pressure class when inquiring.
With an established track record since 2016 and an annual export value reflecting our global reach across markets from North America and Europe to Southeast Asia and Africa, Shanghai Zhibang has built a reputation for reliable marine components. Our ISO9001 quality management system underpins every stage of production, from material sourcing to final testing. Sourced directly from our manufacturing facility in Shanghai, you benefit from competitive pricing, strict quality control, and flexible logistics through major ports like Shanghai, Guangzhou, and Hong Kong. Choose our GB/T 3036 Marine Butterfly Valve to equip your seawater systems with a component engineered for resilience, performance, and value. Contact us today with your size, pressure, and operational requirements for a detailed quotation and technical support.
Send Inquiry to This Supplier
You May Also Like
-
Shipbuilding and Offshore Platform Seawater Valve, GB/T3036 Marine Butterfly Valve With EPDM SealNegotiableMOQ: 1 Unit
-
Marine Butterfly Valve for Seawater With 12-Month Warranty and Mill Test Report ProvidedNegotiableMOQ: 1 Unit
-
CB/T4303 Marine Check Valve in 316 Stainless Steel for OEM Shipbuilding ApplicationsNegotiableMOQ: 1 Unit
-
CB/T4303 Marine Check Valve for Bilge and Ballast System Piping on VesselsNegotiableMOQ: 1 Unit
-
OEM Marine Check Valve Compliant With CB/T4303 Standard, Cast Steel ConstructionNegotiableMOQ: 1 Unit
-
CB/T4303 Marine Check Valve With 12-Month Performance Warranty and Mill Test ReportNegotiableMOQ: 1 Unit
-
CB/T4303 Swing Check Valve for Marine Use, OEM Manufacturing With NACE MR0175 ComplianceNegotiableMOQ: 1 Unit
-
CB/T4303 Flange Type Marine Check Valve, PN16 Pressure Rating for Seawater SystemsNegotiableMOQ: 1 Unit
-
OEM Supply of Marine Check Valves Meeting CB/T4303, Full Port Design for Minimal Pressure DropNegotiableMOQ: 1 Unit
-
DNV Approved CB/T4303 Steam Check Valve, Wafer Connection DN50-DN150NegotiableMOQ: 1 Unit
