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Help CenterBSP Threaded Marine Cast Steel Quick Closing Valve, Weight Type Actuator, GB1850-84
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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-quality marine valves for global clients. Our BSP Threaded Marine Cast Steel Quick Closing Valve with Weight Type Actuator is engineered to meet the stringent demands of marine and offshore applications, providing a reliable and rapid shut-off solution for critical fluid systems. With an annual export value ranging between US$1 Million and US$1.5 Million, our products have gained trust in markets across North America, South America, Europe, Asia, Africa, and Oceania. This valve exemplifies our commitment to safety, durability, and performance, ensuring operational continuity and protection for your valuable assets.
This valve is designed for quick emergency closure in marine piping systems, particularly for fuel oil, lubricating oil, and other flammable or hazardous media lines. Its robust construction and specific features offer significant advantages:
- Rapid Emergency Shut-off: The weight type actuator allows for immediate valve closure through a simple, gravity-assisted mechanism, crucial for preventing spills or containing fires in emergency situations.
- Robust Construction: Manufactured from high-grade cast steel, the valve body offers superior strength and corrosion resistance, suitable for harsh marine environments with exposure to saltwater and varying temperatures.
- Standard Compliance: Manufactured in accordance with the GB1850-84 standard, ensuring dimensional accuracy, material quality, and performance reliability.
- Leak-Prevention Design: Precision machining of the BSP threaded connections ensures a tight seal, minimizing the risk of leaks under high-pressure conditions.
- Low Maintenance: The simple, mechanical weight actuator design requires minimal maintenance, reducing long-term operational costs and downtime.
- Versatile Application: Ideal for use on tankers, cargo ships, offshore platforms, and in coastal power plants where quick isolation of fluid lines is a safety imperative.
Below is a detailed overview of the key technical specifications and parameters for this valve model:
| Parameter | Specification / Detail |
|---|---|
| Primary Material | Cast Steel (Grade customizable upon request) |
| Connection & Thread | BSP Thread (British Standard Pipe Thread) |
| Actuation Mechanism | Weight Type Quick Closing Actuator |
| Design Standard | GB1850-84 |
| Pressure Rating | Available in various classes (e.g., PN16, PN25, customizable) |
| Temperature Range | Suitable for a wide operating range, specific limits available upon request |
| Seat & Seal Material | Standard metal seat; alternative soft-seal options customizable |
| Size Range (Nominal Bore) | Commonly from DN15 to DN150 (other sizes customizable) |
| Application Media | Fuel Oil, Lubricating Oil, Seawater (compatible media list available) |
| Operation Mode | Manual release of weight for automatic closure |
The benefits for our clients are clear and substantial. By integrating this valve into your systems, you enhance safety protocols with a fail-safe closing mechanism. The durable cast steel construction ensures a long service life even in corrosive environments, translating to a lower total cost of ownership. Furthermore, compliance with recognized standards like GB1850-84 guarantees interoperability and reliability within existing marine infrastructure. Our valves are designed to perform under pressure, giving you peace of mind and protecting both personnel and equipment.
Shanghai Zhibang Valve backs its products with a strong commitment to quality, evidenced by our ISO9001 certification. This ensures that every valve, including this quick-closing model, undergoes rigorous quality control processes from raw material inspection to final testing. Our extensive export experience, serving diverse markets from Eastern Europe to Southeast Asia and North America, demonstrates our capability to meet international requirements and logistical needs. We offer flexible shipment options from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing. Choosing our valve means partnering with a reliable manufacturer dedicated to delivering performance, safety, and value. Contact us today to discuss your specific requirements or to request a detailed quotation.
Frequently Asked Questions (FAQ)
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Q: What is the primary purpose of this quick closing valve?
A: Its primary purpose is to provide an immediate, automatic shut-off in emergency situations on marine vessels or offshore installations, typically to isolate fuel or lubricant lines and prevent fire hazards or environmental spills. -
Q: How does the weight type actuator work?
A: The actuator uses a suspended weight mechanism. In normal operation, the valve is held open. In an emergency, a manual release (often via a remote cable or lever) allows the weight to drop, using gravity to instantly close the valve disc. -
Q: Is this valve suitable for seawater service?
A: The cast steel body offers good corrosion resistance. However, suitability for continuous seawater service depends on the specific steel grade and any additional protective coatings. We recommend consulting with our engineers for your specific media conditions. -
Q: Can you provide valves with different pressure ratings (PN/Class)?
A: Yes, we can manufacture this quick closing valve in various pressure classes (e.g., PN16, PN25, Class 150) to match your system's design pressure. Please specify your requirement when inquiring. -
Q: What are the available sizes?
A: We commonly produce sizes from DN15 (1/2") to DN150 (6") with BSP threads. Other sizes outside this range can be customized based on your project needs and order quantity. -
Q: Does the valve require regular testing or maintenance?
A: While the design is low-maintenance, periodic functional testing of the quick-closing mechanism is recommended as part of routine marine safety procedures to ensure it operates correctly when needed. General inspection for wear or corrosion is also advised. -
Q: Are the threads compatible with NPT fittings?
A: This valve is manufactured with BSP (British Standard Pipe) threads. BSP and NPT (National Pipe Taper) threads are not directly interchangeable without adapters due to different thread forms and angles. Please ensure your piping system compatibility. -
Q: What is the lead time for an order?
A: Lead time depends on the order quantity, specifications, and current production schedule. For standard configurations, we typically ship within a few weeks. We provide accurate lead time estimates with every quotation.
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