Emergency Relief Valves (Emergency Vent Covers)

• Model: Weighted Loaded (WL) / Spring-Loaded (SL).

• Pressure Setting: + 50 mm w.c., to +700 mm w.c. (WL) o +700 mm w.c., to +9500 mm w.c. (SL)

• Sizes: 16" to 30" (DN 400 to DN 750) with ASME 150# flange or API 650 flanges, other connections available as per request

• Body Material: Aluminum, CS, SS 304 & SS 316 (trim in different materials as per request)

• Variety of models: With or without hinges, they can also be specified with; steam jacket or water seal.

• Standard & Certification: API 2000, ATEX

EMERGENCY RELIEF VALVES

KSPC

Emergency Relief Valves & Vacuum (Emergency Vent Covers & Vacuum)

• Model: Weighted Loaded (CP) / Spring-Loaded (CR).

• Pressure Setting: + 50 mm/-25 mm w.c., tp ±700 mm w.c. (CP) o +700/-20 mm w.c., to +9500/-700 mm w.c. (CR)

• Sizes: 16" to 30" (DN 400 to DN 750) with ASME 150# flange or API 650 flanges, other connections available as per request

• Body Material: Aluminum, AC, SS 304 & SS 316 (trim in different materials as per request)

• Variety of models: With or without hinges.

• Standard & Certification: API 2000, ATEX

At KSPC, we provide a complete portfolio of emergency relief valves designed to meet the highest safety standards. Contact us with the details of your application — our technical team will help you select the most appropriate model to ensure the protection and performance of your storage system.

The emergency relief valves manufactured by Korea Steel Power Corp. (KSPC) are designed, manufactured, and tested in accordance with the API 2000 standard, and serve as a critical component of passive safety systems in industrial storage facilities.

These valves are specifically engineered to release large volumes of vapor or gas in the event of a sudden internal overpressure in the tank, caused by scenarios such as external fires, accidental overfilling, failure of primary relief valves, or uncontrolled thermal reactions.

They act as the last line of defense under critical conditions, preventing structural deformation or catastrophic failure of the tank by providing an immediate and controlled release of excessive pressure. Certain models may also include vacuum relief functionality and automatic reclosure after activation.

KSPC offers a wide range of atmospheric emergency relief valves, available in weight-loaded and spring-loaded designs to suit different operational conditions. These valves are available in various materials, including carbon steel, stainless steel, and special alloys according to customer requirements.