Contact Platform Support
Help Center
Home > Industrial Equipment & Components > Valve > Check Valve > GB/T1855 Marine Stop Check Valve For Freshwater, Cast Iron DN50 DN200 PN1.0MPa
GB/T1855 Marine Stop Check Valve For Freshwater, Cast Iron DN50 DN200 PN1.0MPa
Product Spotlights
GB/T1855 standard marine stop check valve for freshwater. Cast iron construction ensures durability. Combines shut-off and check functions in one valve, saving space and cost. Available in DN50 to DN200 sizes with PN1.0MPa rating. ISO9001 certified manufacturing guarantees reliable quality for global marine applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Cast Iron
Standard:
Other, GB/T1855
Application:
Other, Marine Freshwater Systems
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Related Products
-
Seawater Stop Check Valve With PN1.0MPa Pressure Rating And Flanged End ConnectionNegotiableMOQ: 1 Unit -
Corrosion-Resistant Stop Check Valve For Seawater Service Featuring 316L Trim And Ductile IronNegotiableMOQ: 1 Unit
-
Reliable Marine Stop Check Valve With Technical Support And Lifetime Spare Parts AvailabilityNegotiableMOQ: 1 Unit
-
GB/T1855 Marine Stop Check Valve For Seawater In Ductile Iron Body With 316L Stainless Steel TrimNegotiableMOQ: 1 Unit
-
GB/T1855 Stop Check Valve For Marine Cooling Water And Seawater Ballast ApplicationsNegotiableMOQ: 1 Unit
Material
Cast Iron
Standard
Other, GB/T1855
Application
Other, Marine Freshwater Systems
Function
Other, Stop-Check (Combined Shut-off and Check)
Nominal Diameter (DN)
DN50, DN65, DN80, DN100, DN125, DN150, DN200
Pressure Rating (PN)
PN1.0MPa
Connection Type
Flanged (as per standard)
Suitable Medium
Fresh Water
Operation Mode
Manual Shut-off, Automatic Check
As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance GB/T1855 Marine Stop Check Valve. Designed specifically for demanding marine freshwater applications, this valve combines the critical functions of a shut-off valve and a check valve into a single, robust unit. Engineered to ensure reliable flow control and prevent damaging backflow in shipboard piping systems, our valve offers shipbuilders and marine engineers a dependable solution that enhances system safety and operational efficiency.
Constructed from durable cast iron, this valve is built to withstand the challenging marine environment. Its design strictly adheres to the Chinese national standard GB/T1855, ensuring compatibility and reliability within standardized marine piping networks. The dual functionality eliminates the need for separate valves, saving valuable space and reducing installation complexity, which is a crucial advantage in the confined spaces of vessels.
Core Features & Technical Advantages:
- Dual-Function Design: Integrates manual shut-off capability with automatic check (non-return) function. It allows positive flow control when needed and automatically prevents reverse flow to protect pumps and upstream components.
- Robust Cast Iron Construction: Provides excellent corrosion resistance for freshwater service and ensures long-term structural integrity under typical marine pressures.
- Standard Compliance: Manufactured in full compliance with GB/T1855, guaranteeing dimensional accuracy, pressure ratings, and performance metrics required for marine applications.
- Wide Size Range: Available in nominal diameters from DN50 to DN200, catering to various pipeline requirements onboard ships, from auxiliary lines to main supply lines.
- Reliable Sealing: Features a precision-machined seat and disc arrangement that ensures tight shut-off when closed and minimal pressure drop when open.
- Flanged Connections: Standard flanged ends facilitate secure, leak-proof installation and easy integration into existing flanged piping systems.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Standard | GB/T1855 |
| Body Material | Cast Iron |
| Nominal Pressure (PN) | 1.0 MPa |
| Nominal Diameter (DN) | DN50, DN65, DN80, DN100, DN125, DN150, DN200 |
| Suitable Medium | Fresh Water |
| Operation Temperature | Standard temperature range for marine freshwater |
| Connection Type | Flanged (as per GB standard) |
| Function | Stop (Isolation) & Check (Non-return) |
Benefits for Your Marine Projects:
- Enhanced System Protection: Prevents water hammer and reverse flow, safeguarding pumps, filters, and other sensitive equipment.
- Space and Cost Savings: One valve performs two functions, reducing the number of components, installation time, and overall system cost.
- Operational Reliability: The simple, robust design minimizes failure points, ensuring dependable performance critical for marine safety.
- Ease of Maintenance: Designed for serviceability in marine environments, with accessible internal components.
- Broad Compatibility: Meets a widely recognized standard, making it suitable for new builds and retrofit projects in various ship types.
Frequently Asked Questions (FAQ):
-
Q: What is the primary advantage of a stop check valve over separate shut-off and check valves?
A: The main advantage is space and weight savings, which are vital on ships. It also simplifies piping layouts, reduces potential leak points, and can lower overall procurement and installation costs. -
Q: Is this valve suitable for seawater applications?
A: This specific model is designed for freshwater systems as per its standard and material specification. For seawater, valves constructed from materials like bronze or stainless steel with appropriate coatings would be recommended. -
Q: Can the valve be installed in any orientation?
A: Most stop check valves have a preferred flow direction and installation orientation for optimal check function. It is crucial to install it according to the flow arrow marked on the valve body. Specific orientation guidelines are provided in the product documentation. -
Q: What is the meaning of the PN1.0MPa rating?
A: PN stands for "Nominal Pressure." A rating of PN1.0MPa means the valve is designed to safely handle a maximum working pressure of 1.0 Megapascal (approximately 10 bar or 145 psi) at a specified temperature. -
Q: Are the flanges compliant with international standards like ANSI or JIS?
A: This valve is manufactured to the Chinese GB/T1855 standard, which defines its flange dimensions. While there may be similarities, for direct compatibility with ANSI or JIS flanged piping, adapters or verification of dimensional compatibility is advised. -
Q: What is the lead time for orders, especially for larger diameters like DN200?
A: Lead times vary based on order quantity and specific size. As an established manufacturer with an annual export value between US$1-1.5 million, we maintain strategic inventory and efficient production scheduling. Typical lead times can be provided upon request with your specific requirements. -
Q: Do you offer customization, such as different end connections or special coatings?
A: Yes, as a manufacturer, we offer customization options. Modifications like different flange standards, epoxy coatings, or other specific requirements can be discussed and quoted based on project needs. -
Q: What quality assurance measures are in place?
A: Our production is governed by an ISO9001 quality management system. Each valve undergoes pressure testing and dimensional checks to ensure it meets the performance criteria outlined in the GB/T1855 standard before shipment.
Backed by our ISO9001 certification and nearly a decade of manufacturing expertise since our establishment in 2016, Shanghai Zhibang guarantees a product built for reliability. Our valves are trusted by clients across diverse global markets, including North America, South America, Europe, Asia, Africa, and Oceania, supported by efficient logistics from major ports like Shanghai and Guangzhou. Choosing our GB/T1855 Marine Stop Check Valve means selecting a component that delivers dual functionality, robust construction, and standard compliance, contributing directly to the safety and efficiency of your marine freshwater systems. Contact us today to discuss your project specifications or to request a detailed quotation.
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
You May Also Like
-
Marine Stop Check Valve With DNV BV Approval For Seawater Piping SystemsNegotiableMOQ: 1 Unit
-
GB/T1855 Compliant Stop Check Valve For Seawater Desalination And Cooling SystemsNegotiableMOQ: 1 Unit
-
High Pressure Stop Check Valve, Stainless Steel Construction, Compliant With GB/T1855 StandardNegotiableMOQ: 1 Unit
-
Marine Grade Stop Check Valve, GB/T1855 Stainless Steel, Suitable for Seawater ApplicationsNegotiableMOQ: 1 Unit
-
Industrial Stop Check Valve, Stainless Steel per GB/T1855, for Steam and Water LinesNegotiableMOQ: 1 Unit
-
GB/T1855 Stainless Steel Stop Check Valve in 304/316L Material, DN15-DN200 Size RangeNegotiableMOQ: 1 Unit
-
Stop Check Valve For Seawater Intake And Discharge Lines On Ships And Offshore PlatformsNegotiableMOQ: 1 Unit
-
Seawater Stop Check Valve Supplied With Mill Test Report And Two-Year WarrantyNegotiableMOQ: 1 Unit
-
Stop Check Valve for Chemical Processing, Stainless Steel GB/T1855, Flanged EndsNegotiableMOQ: 1 Unit
-
Stop Check Valve With 12-Month Warranty, Manufactured to GB/T1855 in Stainless SteelNegotiableMOQ: 1 Unit
