Mechanical Supplies
Globe Valves
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- Globe valves with a disc seating parallel to the flow, giving fine, repeatable throttling control and tight shut-off. The S-shaped body costs more pressure drop than a gate valve but allows the seat and disc to be reground in place.
Application
Used where flow has to be regulated by hand as well as isolated: pump discharge throttling, bypass legs, make-up water lines and coil branches on older hydronic systems. Also chosen on lines that are opened and closed frequently, because the seating action wears far more slowly than a gate wedge.
Standards & Reference 5 cited
EN 12266-1
Pressure testing of metallic valves: the shell and seat tests a valve passes before it leaves the factory.
EN 558
Face-to-face and centre-to-face lengths for valves in pipeline systems: the dimension that decides whether a replacement valve fits the existing gap.
EN 1092-1
Dimensions and pressure/temperature ratings for circular steel flanges, designated by PN. What makes a valve bolt up to the pipework it was specified for.
ISO 5208
Pressure testing of metallic valves, with the seat leakage rates a valve is classified against.
Also citedEN 13709
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