The 2" Relief Valve (VLV) from Apollo Conbraco Industries, model 521SER, is designed for reliable pressure regulation in various applications. This valve operates at a pressure rating of 20 PSI and features a high-quality bronze construction with stainless steel trim, ensuring durability and resistance to corrosion. Ideal for use in HVAC and plumbing systems, it provides effective pressure relief to prevent system overloads. The valve's orientation is horizontal, allowing for versatile installation options. This product meets industry standards for safety and performance, making it a trusted choice for professionals.