Technical Standards Library

EN 12516 is the primary European standard governing the strength design of industrial valves. It defines pressure-temperature ratings, wall thickness calculations, allowable stresses and design requirements for valves operating under pressure.

IEC 60534 is the primary international standard governing control valves, including sizing methods, flow coefficients, performance characteristics, noise prediction and control valve evaluation procedures.

ISO 5211 is the international standard defining mounting interfaces between quarter-turn industrial valves and actuators. The standard enables reliable installation of pneumatic, electric and hydraulic actuators on valves from different manufacturers without requiring custom adapters.

ISO 5208 is the international standard defining pressure testing procedures, leakage rate classifications and acceptance criteria for industrial valves. The standard is widely used to verify pressure integrity and sealing performance before valves are placed into service.

API 598 is the primary American Petroleum Institute standard governing inspection, pressure testing and acceptance criteria for industrial valves. It is widely specified in oil and gas facilities, refineries, petrochemical plants, power generation systems and industrial process applications.

ASME B16.34 is the primary American standard governing the design, construction, pressure-temperature ratings, materials, wall thickness requirements and marking of industrial valves. It is widely specified for valves used in oil and gas facilities, petrochemical plants, power generation systems, process industries and industrial piping networks.

EN 12266 is the primary European standard defining pressure testing, tightness testing and acceptance criteria for industrial valves. The standard establishes uniform testing procedures used by manufacturers, inspectors and end users to verify the mechanical strength and sealing performance of industrial valves before delivery and commissioning.

EN 1092-1 is a European standard for circular steel flanges used with pipes, valves, fittings and accessories in PN-designated piping systems. It specifies flange types, dimensions, sealing faces, tolerances, bolting, materials, marking and pressure/temperature ratings. For industrial valves, EN 1092-1 is essential for correct mechanical connection between the valve and the pipeline. Matching only DN or PN is not enough. Bolt hole pattern, sealing face, flange type and compatibility with the...

EN 558 specifies the face-to-face and centre-to-face dimensions of metallic industrial valves installed in flanged piping systems. It is an important standard for valve selection, replacement and installation because it helps confirm that the valve has the correct installation length. EN 558 is used for PN and Class designated valves and is especially useful when a valve must be replaced without modifying the existing pipework.

EN 10204 is the European standard that defines the different types of inspection documents supplied with metallic products, industrial valves, steam traps, piping components, pressure vessels and process equipment. The standard specifies how manufacturers document conformity with applicable material specifications, manufacturing standards and project requirements. EN 10204 does not define material properties. Instead, it defines how inspection and testing results are documented and...