1. Product Description
A safety valve is a critical pressure relief device designed to automatically release excess pressure from systems (e.g., boilers, pipelines, pressure vessels) to prevent catastrophic failures. It operates by opening at a predefined set pressure and reclosing once normal pressure is restored.
2. Core Parameters
Parameter | Description | Typical Range |
|---|---|---|
Set Pressure | Pressure at which the valve starts to open. | 0.5–500 bar (adjustable) |
Capacity | Flow rate (e.g., steam, gas, liquid) discharged at full lift. | 10–10,000 kg/h (steam) |
Temperature Range | Operating temperature limits. | -196°C to +550°C (material-dependent) |
Blowdown | Pressure drop required for valve reseating (typically 3–10% of set pressure). | 3–10% |
Orifice Size | Diameter of the valve’s flow passage (standardized per ASME/ISO). | ¼” to 6” (DN8 to DN150) |
Material | Body/trim materials (e.g., carbon steel, stainless steel, alloy). | ASTM A216, A351, etc. |
Certification | Compliance with international standards. | ASME BPVC, ISO 4126, PED 2014/68/EU |
3. Key Features
- Spring-Loaded Design: Ensures precise pressure control with adjustable springs.
- Sealing Technology: Metal-to-metal or soft seals for leak-free performance.
- Balanced Bellows: Compensates for backpressure in variable systems.
- Tested Reliability: Hydrostatic/pneumatic testing for guaranteed performance.
4. Applications
- Industrial: Power plants, oil & gas refineries, chemical processing.
- Commercial: HVAC systems, steam boilers.
- Specialized: Cryogenic systems, high-pressure reactors.
5. Selection Guidelines
- Match set pressure to system requirements.
- Calculate flow capacity based on system dynamics.
- Choose materials compatible with media (corrosive/flammable).
- Verify compliance with local/industry standards.
Keywords
Safety Valve
A safety valve is a critical pressure relief device designed to automatically release excess pressure from systems (e.g., boilers, pipelines, pressure vessels) to prevent catastrophic failures. It operates by opening at a predefined set pressure and reclosing once normal pressure is restored.
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