Spring Loaded Safety Valve, Proportional Lift

Spring Loaded Safety Valve (Proportional Lift) is designed for reliable pressure relief in industrial systems where controlled and gradual discharge is required to protect pipelines, vessels, and equipment from overpressure conditions.

The valve features a flanged body design, allowing secure installation in pipeline systems and ensuring stable operation under varying pressure conditions. The proportional lift characteristic enables the valve to open gradually in response to increasing pressure, providing precise and controlled pressure relief.

The valve body is typically manufactured from cast iron, ductile iron, or stainless steel, offering high mechanical strength and resistance to pressure and temperature variations. Internal components such as the disc and seat are designed for durability and consistent sealing performance under continuous operation.

The spring-loaded mechanism ensures accurate set pressure control. As system pressure increases, the valve opens proportionally, allowing fluid discharge. Once the pressure decreases below the set value, the valve closes smoothly to maintain system stability.

The valve is designed in accordance with EN ISO 4126 standards and is suitable for use with water, air, steam, and compatible industrial fluids depending on material selection.

Each product variant represents a specific nominal diameter, pressure class, and set pressure value.

Applications

• Pressure vessels
• Industrial pipelines
• Heating systems
• Water systems

Technical Specifications

Valve type: Safety Valve (Proportional Lift)
Connection type: Flanged
Pressure class: PN16 / PN25 / PN40
Set pressure range: 4 – 16 bar
Material: Cast Iron / Ductile Iron / Stainless Steel
Operation: Spring Loaded
Flow type: Gradual