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As a dedicated manufacturer with a strong focus on precision engineering, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents the CB312-1977 Marine Gauge Valve. Engineered to meet the rigorous demands of maritime applications, this valve is designed to ensure reliable isolation and regulation for pressure gauges and instrumentation across various marine systems. With our commitment to quality backed by ISO9001 certification, we deliver a component that combines durability with consistent performance, offering peace of mind for vessel operators and shipbuilders worldwide. Our annual export reach across continents underscores the trust placed in our products for critical marine environments.
This valve serves as a crucial interface between your pressure gauges and the system piping, providing a secure and controllable point for maintenance, calibration, and safety isolation. Its robust construction is tailored to withstand the harsh conditions at sea, including exposure to saltwater, vibration, and fluctuating pressures.
Key Features & Technical Advantages:
- Precision Machining: Manufactured with high-precision CNC machinery to ensure perfect thread engagement and leak-free operation, critical for maintaining accurate pressure readings.
- Corrosion-Resistant Materials: Available in high-grade brass with protective plating or 316 stainless steel, offering excellent resistance to seawater corrosion and extending service life.
- Reliable Sealing: Incorporates high-quality sealing elements such as PTFE or reinforced rubber seals to prevent leaks under high pressure and temperature variations.
- Easy Operation: Features an ergonomic handwheel or lever for straightforward opening and closing, even in confined engine room spaces.
- Versatile Configuration: Can be supplied in straight or angle patterns, and with various port connections (NPT, BSP) to fit seamlessly into existing piping layouts.
- Safety-First Design: Provides a positive shut-off function, allowing safe removal or servicing of gauges without depressurizing the entire system.
Detailed Specifications:
| Parameter | Specification |
| Model Number | CB312-1977 |
| Primary Material Options | Brass (Chromium Plated), 316 Stainless Steel |
| Standard Connection | 1/4" NPT Female (Other sizes customizable) |
| Maximum Working Pressure | 600 PSI (41 bar) |
| Temperature Range | -20°C to 150°C (-4°F to 302°F) |
| Seal Material | PTFE / Nitrile Rubber (Customizable) |
| Operation Type | Manual Handwheel / Lever |
| Applicable Fluid | Water, Oil, Air, Mild Chemicals |
Benefits for Your Operations:
- Enhanced Gauge Accuracy & Longevity: Protects sensitive pressure gauges from sudden pressure surges and allows for zeroing, leading to more accurate measurements and longer gauge life.
- Reduced Maintenance Downtime: Enables quick isolation and replacement of gauges without system shutdown, minimizing operational interruptions.
- Improved System Safety: Adds a critical layer of control, preventing accidental pressure releases during gauge maintenance.
- Cost-Effective Solution: Durable construction and the included 12-month performance warranty reduce long-term replacement and repair costs.
- Global Compliance Ease: Manufactured under an ISO9001 quality system, supporting documentation for regulatory compliance is available upon request.
With an established track record since 2016 and annual exports valued between US$1 Million to US$1.5 Million, Shanghai Zhibang has built a reputation for reliability across key maritime markets from North America and Europe to Southeast Asia and Africa. Our products are shipped from major ports like Shanghai and Guangzhou, ensuring efficient logistics. The CB312-1977 Marine Gauge Valve embodies this commitment, offering a dependable, warranty-backed component that enhances the safety and efficiency of your vessel's monitoring systems. Choose a partner dedicated to precision and durability. Contact us today for specifications, pricing, or to discuss custom requirements for your fleet.
Frequently Asked Questions (FAQ):
Q1: What is the primary function of this marine gauge valve?
A: Its primary function is to provide a secure shut-off point between a pressure gauge and the system piping. This allows for safe isolation, calibration, removal, or replacement of the gauge without affecting the main pressurized line.
Q2: Is the CB312-1977 valve suitable for saltwater applications?
A: Yes, absolutely. When ordered in 316 stainless steel or properly plated brass configurations, it is specifically designed to resist corrosion from seawater and salty atmospheres common in marine environments.
Q3: Can I connect different gauge thread standards to this valve?
A: The standard offering is NPT thread. However, we can provide valves with BSPP (G) or other thread standards upon request to match your specific gauge and pipe fittings.
Q4: What does the "12-Month Performance Warranty" cover?
A: Our warranty covers defects in materials and workmanship under normal use for 12 months from shipment. It guarantees that the valve will perform its specified functions (sealing, pressure containment) when installed and used as intended.
Q5: How do I select between brass and stainless steel material?
A: Brass with corrosion-resistant plating is a cost-effective choice for many general applications. 316 stainless steel is recommended for highly corrosive environments, higher temperatures, or where specific chemical compatibility is required. Our team can advise based on your operating conditions.
Q6: Are these valves in stock for immediate shipment?
A: We maintain strategic inventory levels of popular models and sizes. Please inquire with your specific requirements (material, size, connection type) for current stock status and lead times.
Q7: Do you provide documentation like material certificates?
A> Yes. As an ISO9001 certified manufacturer, we can provide relevant documentation, including material test certificates and inspection reports, upon request to support your procurement and quality assurance processes.
Q8: Can this valve be used for fluids other than water and air?
A> It is designed for water, oil, air, and mild chemicals. For aggressive chemicals or specialized media, please consult with our technical team to verify seal material compatibility and suitability.
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