Author: "Philippopoulos s.a."

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  EN 1092-1 – PN Flanges for Industrial Valves and Piping

  Posted in: Technical Standards Library, European EN Standards

  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...

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  EN 558 – Face-to-Face and Centre-to-Face Dimensions of Industrial Valves

  Posted in: Technical Standards Library, European EN Standards

  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.

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  EN 10204 – Inspection Documents for Industrial Valves and Process Equipment

  Posted in: Technical Standards Library, European EN Standards

  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...

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  Ball Float Steam Traps: Selection, Operation, and Industrial Applications

  Posted in: Articles

  Ball float steam traps are mechanical steam traps used where continuous condensate removal is required under variable load conditions. They are commonly specified for steam-heated heat exchangers, process coils, calorifiers, air heaters, and other equipment where condensate must be discharged as it forms without causing temperature instability or waterlogging. A typical ball float steam trap uses a buoyant spherical float connected to a valve mechanism. As condensate enters the trap body,...

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  How to Select the Right Steam Trap for Industrial Applications

  Posted in: Articles

  A steam trap is a self-acting valve used to discharge condensate, air, and non-condensable gases from a steam system while limiting live steam loss. Correct selection depends on the duty, not only the pipe size. A trap that works on a steam main drip leg may be unsuitable for a heat exchanger, tracing circuit, sterilizer, or pressure-reducing station. ISO classifies automatic steam traps into three main operating groups: mechanical, thermostatic, and thermodynamic. ISO/DIS 6704 is...

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  Industrial Globe Valves for Steam, Thermal Fluids, Process Utilities and High-Pressure Service

  Posted in: Articles

  Globe valves are selected when a piping system needs positive isolation with a more controllable closing characteristic than many quarter-turn or gate-type isolation valves. In steam, condensate, hot-water, thermal-oil and process-utility systems, the seat-and-disc geometry allows progressive restriction of the flow path, so the valve can be used for isolation and, with the correct plug/disc design, limited throttling duty. The category includes bellows-sealed and packed-gland globe valves,...

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