The RFZ-V58F Gas Safety Discharge Valve is a high-precision overpressure relief device specifically engineered for the downstream sections of gas pipeline transmission and distribution systems. Utilizing a sophisticated spring-loaded regulation structure and a large diaphragm connection area, this valve ensures exceptional sensitivity and rapid response, making it the ideal safety safeguard for low and medium-pressure pipe networks. It is designed to operate seamlessly with natural gas, coal gas, liquefied petroleum gas (LPG), and other non-corrosive gases.
Engineered for reliability and long-term stability, the RFZ-V58F features a direct-action spring mechanism that allows for accurate regulation and automatic reseating after repeated activation. Its compact, equal-diameter discharging structure simplifies installation while maintaining a close enclosure to prevent leaks. Compliant with rigorous durability tests according to CJ/T335-2010 standards, this valve offers professional-grade protection, reducing maintenance overhead and ensuring the operational integrity of gas pressure regulator systems.
Detailed Parameters
| Set Pressure (P1) | 0.1MPa - 0.6MPa | Discharge Pressure | ≤ 1.05Pf |
|---|---|---|---|
| Reseating Pressure | ≥ 0.9Pf | Opening Height | 1/4d (d = flow diameter) |
| Working Temperature | 20℃ ~ +60℃ | Series Specification | DN25 |
| Connection Mode | G1" Thread | Applicable Medium | Natural Gas, LPG, Coal Gas |
| Nominal Diameter | 25mm | Overall Height (H) | 190mm |
Key Advantages
High Precision
Achieves superior regulation accuracy and rapid response times to prevent system over-pressurization instantly.
Extended Lifespan
Built with durable materials and a stable spring mechanism to ensure a long working life with minimal wear.
Automatic Reseating
The valve automatically closes and reseals after discharge, maintaining system continuity without manual intervention.
Online Adjustment
Supports online pressure adjustment, allowing technicians to calibrate the system without complete shutdown.
Compact Design
Equal-diameter discharging and a streamlined structure ensure easy installation in tight pipe network spaces.
Standard Compliant
Fully tested and verified against CJ/T335-2010 standards for urban gas cut-off and relief valve performance.
Product Gallery
Management Platforms
Inventory Control
Efficient tracking of valve series and specifications for rapid replacement and stock management.
Maintenance Scheduling
Planned periodic inspections to verify set pressure and seal integrity, extending valve lifespan.
Pressure Monitoring
Integration with system alerts to detect frequent valve "jumps," indicating upstream pressure instability.
Safety Compliance
Digital logging of certification and testing standards (CJ/T335-2010) for regulatory audits.
Spare Parts Logistics
Simplified management of gaskets and springs to reduce mean time to repair (MTTR).
Performance Analytics
Evaluation of the discharge coefficient (Kd) to optimize system sizing and relief capacity.
Investment Return Comparison
| Performance Metric | Standard Relief Valves | RFZ-V58F Safety Valve |
|---|---|---|
| Response Time | Delayed / Mechanical Lag | Ultra-Fast / Direct Action |
| Maintenance Cost | High (Frequent Overhauls) | Low (Online Repairable) |
| Operational Stability | Moderate (Prone to Leaks) | High (Automatic Reseating) |
| Installation Effort | Complex / Large Footprint | Simple / Compact Structure |
| Safety Reliability | Standard Protection | Enhanced Precision Protection |
Frequently Asked Questions
Q: What is the primary function of the RFZ-V58F Gas Safety Discharge Valve?
It acts as a safeguard in gas pressure systems, automatically releasing excess gas when internal pressure exceeds a preset threshold to prevent equipment damage or hazardous over-pressurization.
Q: Which gases are compatible with this safety discharge valve?
The RFZ-V58F is designed for use with non-corrosive gases, including natural gas, coal gas, and liquefied petroleum gas (LPG).
Q: How does the "automatic reseating" feature benefit the system?
Automatic reseating ensures that once the system pressure returns to a safe level, the valve closes on its own, preventing unnecessary gas loss and maintaining system continuity.
Q: What are the signs that a gas safety valve needs replacement?
Common signs include persistent gas odors, visible corrosion around the valve body, unusual whistling/clicking noises, or unexplained drops in system pressure.
Q: What is the importance of the discharge coefficient (Kd) in valve selection?
The discharge coefficient measures the actual flow rate versus the theoretical ideal. Engineers use Kd to accurately size the valve, ensuring it can release enough gas to keep the system safe during an overpressure event.
Q: Can the RFZ-V58F be maintained while the system is online?
Yes, the valve is designed for online repair and maintenance, which significantly reduces downtime and labor costs for facility operators.
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