Oliver Valves Check Valves are precision-engineered to allow flow in one direction only, automatically closing to prevent backflow when the flow reverses. Manufactured from high-grade 316 stainless steel, these valves are available in sizes ranging from ¼” to 1” with standard ½” NPT female x female connections, ensuring durability and corrosion resistance in demanding applications. Each valve features a spring-loaded, fail-close design with a specially engineered poppet arrangement to minimize pressure loss and ensure consistent sealing performance. For chemical injection systems, Oliver Check Valves can be supplied either as stand-alone units or integrated within valve assemblies, such as Double Block and Bleed configurations, providing design flexibility for complex instrumentation systems. Our standard range is rated up to 413 bar (6,000 psi) with a cracking pressure of 0.5 bar (7 psi) and is available in a variety of materials to suit specific service requirements. 3D CAD models can be provided upon request for design and engineering integration. For more information, contact us at 02-168-3193-5, Hotline: 091-187-1111 or Line ID: @multiphase