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Precision Machined GB/T1855 Stop Check Valve, Cast Iron Body, PN1.0MPa Pressure Class
Product Spotlights
Dual-function valve combining stop and check capabilities in one unit for space and cost savings. Precision-machined cast iron body ensures reliable sealing and durability per GB/T1855 standard, suitable for PN1.0MPa steam, water, and oil systems. Offers flexible material options for discs and seats. Manufactured by an ISO9001-certified supplier with global export experience.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Application:
Other, Steam
Product Standard:
GB/T1855
Body Material:
Cast Iron
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Steam
Product Standard
GB/T1855
Body Material
Cast Iron
Pressure Class
PN1.0MPa
Connection Type
Flanged (Standard)
Disc Material
Ductile Iron or Cast Steel
Seat Material
Rubber or Metal (Optional)
Operation Type
Manual (Handwheel)
As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve is proud to present our Precision Machined GB/T1855 Stop Check Valve. Engineered for reliability in demanding industrial applications, this valve combines the dual functionality of a stop valve and a check valve, offering superior flow control and backflow prevention. Our commitment to precision machining ensures tight sealing, smooth operation, and extended service life, providing our global clients in over 14 markets with a cost-effective and dependable pipeline solution.
This cast iron body valve is designed to withstand pressures up to PN1.0MPa, making it a robust choice for various fluid handling systems. Its construction and performance are meticulously aligned with the GB/T1855 standard, a hallmark of quality and interoperability in Chinese industrial valve specifications.
Core Features & Technical Advantages:
- Dual-Function Design: Serves as both an isolation (stop) valve and a non-return (check) valve, saving space and installation costs.
- Precision Machined Components: Critical sealing surfaces and threads are precision-machined to ensure leak-tight closure and consistent performance.
- Rugged Cast Iron Construction: The body provides excellent strength and corrosion resistance for a wide range of media including water, steam, and oil.
- Standard Compliance: Manufactured in strict accordance with GB/T1855, ensuring dimensional accuracy and performance reliability.
- Flexible Disc Options: Available with different disc materials (e.g., ductile iron, cast steel) and seat materials (rubber or metal) to suit specific media and temperature requirements.
- Easy Operation & Maintenance: Features a standard handwheel for manual operation. The design allows for relatively easy maintenance and part replacement if needed.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Standard | GB/T1855 |
| Body Material | Cast Iron |
| Nominal Pressure | PN1.0MPa (Class 150) |
| Connection Type | Flanged (RF or FF per standard) |
| Disc Material | Ductile Iron / Cast Steel (Optional) |
| Seat Material | Rubber / Metal (Selectable) |
| Operation Mode | Manual (Handwheel) |
| Temperature Range | Depends on seat material (e.g., -20°C to 200°C for rubber) |
| Main Application | Steam Boilers, Water Supply, Oil & Gas Pipelines, HVAC |
Benefits for Your Operations:
- Enhanced System Safety: Prevents potentially damaging backflow, protecting pumps and other upstream equipment.
- Simplified Piping Layout: Replaces the need for two separate valves (a gate valve and a check valve), reducing points of potential leakage.
- Cost Efficiency: Lower initial investment compared to purchasing two valves, plus reduced installation and maintenance costs.
- Reliable Performance: Precision machining and adherence to GB/T1855 guarantee consistent sealing and operational longevity.
- Broad Compatibility: Suitable for integration into systems designed with Chinese GB standards or compatible international specifications.
Shanghai Zhibang Valve Manufacture Co., Ltd. brings over 8 years of specialized experience and an ISO9001-certified quality management system to every valve we produce. With an annual export value consistently between US$1-1.5 million, we have established trust with partners across North America, South America, Europe, Asia, Africa, and Oceania. Our efficient logistics network from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing ensures timely delivery worldwide. Choose our Precision Machined GB/T1855 Stop Check Valve for a robust, versatile, and trustworthy component that strengthens your fluid control systems. Contact us today for a quotation or to discuss your specific project requirements.
Frequently Asked Questions (FAQ):
-
Q: What is the primary function of a stop check valve?
A: It serves two main purposes: to manually stop or regulate flow (like a stop valve) and to automatically prevent reverse flow (like a check valve) when the upstream pressure drops. -
Q: Can this valve be used for steam service?
A: Yes, with the appropriate seat material selection (typically metal seats), this cast iron valve is suitable for steam applications within its pressure and temperature ratings. -
Q: Is the GB/T1855 standard compatible with ANSI/ASME standards?
A: While dimensions and pressure ratings may differ, many GB standards, including GB/T1855, are designed to be functionally compatible. Flange dimensions can often be matched. It's advisable to provide your specific flange standard for confirmation. -
Q: What are the available sizes?
A: Sizes are customizable upon request. Common sizes per GB/T1855 range from DN15 to DN600. Please inquire with your required nominal diameter. -
Q: What maintenance does this valve require?
A: It requires minimal maintenance. Periodic checks for external leakage and smooth operation of the handwheel are recommended. The internal disc and seat may need inspection or replacement after extended service depending on the media. -
Q: Do you offer actuated versions (electric or pneumatic)?
A: Primarily manual, but actuation packages can be provided as an optional accessory. Please discuss your automation needs with our sales team. -
Q: What is the lead time for orders?
A: Lead times vary based on order quantity and specifications. Standard configurations typically have shorter lead times. We provide estimated timelines upon order confirmation. -
Q: What documentation is provided with the valve?
A> We provide essential documentation including a material certificate, product test report (hydrostatic test), and a manual. Additional certificates are available upon request.
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
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