Stainless Steel 316L Full Lift Safety Valve DN80 Price and Selection Parameters
The combination of 316L stainless steel construction and full lift design provides maximum corrosion resistance and discharge capacity, ensuring reliable system protection. This article provides pricing information and essential selection parameters for DN80 316L full lift safety valves.The main safety valve product names of China safety valve Network include:ANSI Bellows Safety Valve,Air, Gas Valve,Ammonia-used Safety Valve,A28X Air Compressor Safety Valve，Vacuum Negative Pressure Safety Valve,Water Heater Safety Valve,YD Type Bursting Disc，Overflow Valve,Oil Refining Specific Safety Valve,Pulse Safety Valve,Pilot Safety Valve,Pressure Safety Valve,Quick Switching Safety Valve.
Price Reference for DN80 316L Full Lift Safety Valve
Stainless steel 316L safety valve prices vary based on connection type, pressure rating, and certification:
Flanged connection DN80 316L safety valves with Class 150 rating are available from approximately 2,200 to 2,600 CNY per unit, depending on configuration. Prices vary by manufacturer and specific design.
Threaded connection DN80 316L safety valves for smaller applications are typically priced lower than flanged equivalents.
Premium models with full API compliance, NACE certification, and comprehensive documentation packages are available at competitive pricing from established manufacturers.
Key factors affecting price include pressure rating (Class 150 vs Class 300), connection type, set pressure range, and certification requirements.
Understanding Full Lift Design
Full lift safety valves are specifically designed for compressible fluids such as steam and gases. The disc lifts instantaneously and fully to the rated lift height, providing maximum discharge capacity. This design is essential for applications requiring rapid pressure relief and maximum flow capacity. Full lift valves are the standard choice for steam, gas, and vapor systems.
In contrast, micro-lift valves are suitable for liquid applications with lower discharge requirements. For steam and gas applications, full lift design is always preferred.
Technical Specifications
Pressure and Temperature: DN80 316L safety valves are available in Class 150 (2.0MPa) and Class 300 (5.0MPa) ratings with temperature capability up to 200 degrees Celsius. Pressure-temperature ratings must be de-rated per ASME standards at elevated temperatures.
Materials: Valve body is cast CF8M (equivalent to 316L stainless steel) with Stellite hard-facing on disc and seat rings for wear resistance. Inconel X-750 springs maintain consistent performance and corrosion resistance.
Design Features: Full lift design provides maximum discharge capacity for steam and gas. API 526 compliant design ensures standardized dimensions. Closed bonnet design prevents media leakage to atmosphere. Adjustable set pressure accommodates system requirements.
Connections: Flanged connections (RF per ASME B16.5) are standard for DN80. Threaded connections are available for smaller sizes.
Standards: API 526 for design, API 527 for seat tightness, ASME Section VIII Div. I for pressure vessel applications, and NACE MR0175 for sour gas service.
Selection Parameters
When selecting a DN80 316L full lift safety valve, consider set pressure matching system maximum allowable working pressure. Calculate required discharge capacity based on maximum steam generation rate. Confirm material compatibility with process media. Select connection type matching existing piping configuration. Verify bonnet configuration and back pressure effects for your application.
Summary
DN80 Stainless Steel 316L Full Lift Safety Valves are essential for corrosive media overpressure protection with prices starting from 2,200 CNY for flanged Class 150 configurations. Full lift design provides maximum discharge capacity for steam and gas applications. Selection requires careful evaluation of set pressure, discharge capacity, and material compatibility. Consulting with qualified manufacturers who provide certified material test reports ensures reliable system protection.
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