Industrial Valves and Strainers Weld Procedure Development Retainerless Check Valves Knife Gate Valves Technical Specifications A primer on industrial valves and strainers A Checklist of some of the more common factors to take into account when selecting a strainer or filter. Strainer Options Y-Strainer Flow Rate Vs. Pressure Drop Charts Custom Strainer Screens – Perforated Metal and Mesh Engineering Specification, Selection, Installation and Maintenance of Pipeline Strainers Quality Codes and Standards What is the International Organization for Standardization (ISO) What is the American Society of Mechanical Engineers (ASME) What is the Technical Standards & Safety Authority (TSSA) What is the National Board of Boiler and Pressure Vessel Inspectors (NB) What is a Canadian Registration Number (CRN)? Butterfly Valves: Seat Materials Technical Data Library Conversion Factors, Decimal Equivalents, Relative Sizes of Particles and Viscosity Conversion Perforated Metal and Mesh Open Area Data & Mesh Inch/Micron Conversion Chart