| Customization: | Available |
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| Media: | Gas |
| Temperature: | Ordinary Temperature |
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The NAI-LOK Relief Valve is a high-performance safety valve designed for applications requiring precise pressure control in confined spaces. Its compact design, external adjustability, and robust construction make it ideal for industries such as oil & gas, chemical processing, and power generation.
Space-Saving Design - Compact body allows easy installation in tight spaces where traditional relief valves cannot fit.
Externally Adjustable Cracking Pressure - Fine-tune pressure settings without disassembly, reducing maintenance downtime.
Lock Wire Capability - Ensures pressure relief settings remain secure, preventing accidental adjustments.
100% Factory Tested - Guaranteed crack and reseal performance for reliable, leak-free operation.
Wide Temperature Range - Operates reliably in extreme conditions (-23°C to 204°C / -10°F to 400°F).
Precision Orifice Size (4.8 mm / 0.19 in) - Optimized flow control for consistent pressure management.
Outlet Pressure Sensitivity - Cracking pressure adjusts based on downstream conditions for enhanced system safety.
| Product Name | RV Series Relief Valve |
| Cracking Pressure Range | RV1:15-225 psig / 1-155 bar to atmosphere RV2: 225-1500 psig /16-104 bar to atmosphere |
| Max working pressure | RV1: 300 psig /21 bar RV2: 6000 sig/414 bar |
| Spring Types | Blue:15-225 psig /1-15.5 bar Yellow.225-750 psig/15.5-51.5 bar Purple:750-1500 psig /51.5-104 bar |
Hydraulic & pneumatic systems
Process control equipment
Compressed gas storage
Refinery & petrochemical safety systems
Our relief valves are engineered for durability, precision, and safety, ensuring long-term performance even in demanding environments. With rigorous testing and high-quality materials, the NAI-LOK Relief Valve provides dependable overpressure protection while minimizing maintenance needs.

