Overview

The A41Y flange high-pressure safety valve is a spring-loaded micro-opening safety valve featuring flange connection and carbide sealing, specifically designed for high-pressure conditions. When the system pressure exceeds the preset set pressure, the valve automatically opens slightly to release the medium to prevent overpressure and closes automatically once the pressure returns to normal. Its "Y"-shaped carbide sealing surface and reinforced valve body structure enable it to withstand high pressures (typically PN16-PN100 or higher) and resist erosion, wear, and corrosion from high-pressure media, making it a crucial overpressure protection device in high-pressure systems. It is primarily installed at the safety relief outlets of high-pressure (typically above PN16) equipment and pipelines such as petrochemical high-pressure reactors, hydrogenation units, high-pressure polyethylene systems, synthetic ammonia plants, power station boiler feedwater systems, and high-pressure oil and gas transmission pipelines, serving as the last key line of defense to prevent abnormal system overpressure and ensure the safety of personnel and equipment.

A41Y flanged high pressure safety valve Product Diagram

1.The high-pressure valve body structure is forged or cast using high-strength carbon steel or alloy steel, optimized through finite element analysis, and has enhanced wall thickness, enabling it to safely withstand high working pressure and pressure shocks.

2. The sealing surface between the hard alloy sealing ("Y"-shaped) valve disc and the valve seat is deposited with high-hardness alloys such as Stellite, which maintains excellent wear resistance, corrosion resistance, and sealing performance under high-pressure and high-speed medium erosion.

3. The spring-loaded micro-opening relief valve utilizes a direct-loaded spring and a micro-opening valve disc, featuring a small opening height. It is suitable for applications involving liquid media or high pressure, where precise control of the relief volume is required to avoid significant loss of the medium.

4. The high-pressure stabilizing spring, which has undergone special design and processing, exhibits high resistance to relaxation and a stable elastic coefficient, ensuring accurate set pressure and good repeatability under high-pressure conditions.5. The flange connection is sturdy and reliable, utilizing standard RF or RJ flange connections. The sealing surface type matches the pipeline, providing high connection strength and reliable sealing, suitable for the installation requirements of high-pressure pipelines.            

A41Y flanged high pressure safety valveStructural Diagram

Part Name Material

Performance Specifications Table

A38Y Spring-Loaded Dual Safety Valves Outline Drawing

Dimension Chart