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Help CenterGB/T19699 Marine High Velocity Pressure Vacuum Valve Cast Steel With Gas Freeing Cover
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Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents the GB/T19699 Marine High Velocity Pressure Vacuum Valve Cast Steel With Gas Freeing Cover – a reliable solution designed for demanding marine and industrial applications. Manufactured in our ISO9001 certified facility since 2016, this valve combines robust cast steel construction with high-velocity performance to ensure safe pressure and vacuum relief in tank systems. Our valves are exported to markets across North America, South America, Europe, Asia, Africa, and Oceania, reflecting our commitment to quality and global standards.
This pressure vacuum valve is specifically engineered to handle high-velocity gas flow while maintaining precise pressure control, preventing overpressure or vacuum collapse in storage tanks. The integrated gas freeing cover allows for efficient venting and maintenance, making it ideal for marine vessels, oil terminals, and chemical storage facilities. With a wide range of customizable sizes and connections, this valve fits seamlessly into existing piping systems.
Key Features & Technical Specifications
- High Velocity Design: Optimized for rapid gas flow, reducing pressure drop and ensuring efficient operation.
- Cast Steel Construction: Durable and corrosion-resistant material for long service life in harsh marine environments.
- Gas Freeing Cover: Enables safe venting and inspection without removing the entire valve assembly.
- Compliance with GB/T19699: Meets Chinese national standard for marine pressure vacuum valves.
- Flanged Connections: Optional flanged ends for easy installation (other connection types available upon request).
- Customizable Parameters: Size, pressure rating, color, and additional features can be tailored to your project requirements.
- Low Maintenance: Simple design with few moving parts reduces downtime and repair costs.
| Parameter | Value |
| Standard | GB/T19699 |
| Material | Cast Steel (WCB / WCC available) |
| Pressure Rating | PN10 / PN16 / Custom |
| Size Range | DN50 – DN300 (other sizes customizable) |
| Connection Type | Flanged (RF / FF) |
| Cover Type | Gas Freeing Cover |
| Application | Marine tanks, oil storage, chemical terminals |
Customer Benefits
- Enhanced Safety: Prevents tank overpressure and vacuum damage, protecting personnel and equipment.
- Operational Efficiency: High-velocity design minimizes backpressure, improving flow rates.
- Longevity: Cast steel withstands corrosive marine atmospheres and mechanical stress.
- Easy Maintenance: Gas freeing cover allows quick access for cleaning and inspection without full disassembly.
- Global Compliance: Designed to GB/T19699, suitable for international shipping and offshore projects.
As a trusted manufacturer with over US$1 million annual export value, Shanghai Zhibang Valve has supplied valves to clients across North America, South America, Europe, Asia, Africa, and Oceania. Our ISO9001 certified production processes ensure consistent quality, and we offer flexible shipping options from Shanghai, Guangzhou, Hong Kong, and Beijing. We understand the critical nature of marine applications and stand behind every valve we produce.
Choose the GB/T19699 Marine High Velocity Pressure Vacuum Valve for your next project – a cost-effective, durable, and reliable solution backed by years of manufacturing expertise. Contact our sales team today for a quote or technical consultation. We are ready to support your global requirements with customized solutions.
Frequently Asked Questions (FAQ)
-
What is the purpose of the gas freeing cover?
It allows safe venting of accumulated gases and provides access for maintenance without removing the valve body, reducing downtime. -
What materials are available besides cast steel?
Standard is cast steel (WCB/WCC); stainless steel or other alloys are available upon request for specific chemical compatibility. -
What pressure ratings can this valve handle?
Typical ratings are PN10 and PN16, but custom pressure classes can be engineered based on your system requirements. -
Is this valve suitable for low-temperature environments?
Yes, with appropriate material selection (e.g., low-temperature steel) – please specify your operating temperature when ordering. -
What standard does this valve comply with?
It is designed and manufactured according to GB/T19699, the Chinese national standard for marine pressure vacuum valves. -
Can I get a sample before bulk order?
Yes, sample orders are welcome. We can provide a single unit for testing and evaluation. -
What is the typical lead time?
For standard sizes, lead time is 15–30 working days after order confirmation. Customized orders may take longer. -
Do you provide installation support or documentation?
We offer technical datasheets, installation manuals, and upon request, on-site support for large projects.
For more details or to place an order, please contact us at info@zhibangvalve.com or visit our website. We look forward to partnering with you.
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