Author: "Philippopoulos s.a."

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  Pressure Drop in Steam Lines

  Posted in: Engineering guides

  Pressure drop in a steam distribution network directly affects the available pressure at the point of use, as well as the operation of control valves, pressure reducing valves, steam traps and heat exchangers. For preliminary technical checks, pressure drop may be estimated using the steam density, flow velocity and the total resistance coefficient of the pipework and installed components.

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  Recommended Flow Velocities for Steam, Water and Air Lines

  Posted in: Engineering guides

  The following values may be used as an indicative guide for preliminary checks of flow velocities in industrial steam, condensate, feedwater, cooling water and compressed air piping systems. Proper flow velocity selection affects pressure drop, noise, erosion, water hammer risk, condensate transport and the operation of valves, steam traps, pressure reducing valves and control equipment.

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  Saturated Steam Table

  Posted in: Engineering guides

  The following table presents basic thermodynamic properties of saturated steam as a function of absolute pressure. The data may be used as a technical reference for preliminary calculations and equipment selection in steam systems, including steam traps, control valves, pressure reducing valves, safety valves, condensate lines and heat exchange applications.

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  IEC 60534 Control Valve Standard

  Posted in: Technical Standards Library, IEC Standards

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

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  ISO 5211 Valve and Actuator Mounting Interface Standard

  Posted in: Technical Standards Library, ISO Standards

  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.

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  ISO 5208 Industrial Valve Pressure Testing and Leakage Rate Classification

  Posted in: Technical Standards Library, ISO Standards

  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.

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