Globe valve BOA-H series

manualweldedchrome

Bellows-type globe valve to DIN/EN with flanged ends, with on/off disc or throttling plug, standard position indicator with colour coding for identification of valve design, replaceable valve disc; bellows protected when valve is in fully open position; seat/disc interface made of wear and corrosion resistant chrome steel or chrome nickel steel. Benefits High operating comfort at no extra charge: position indicator with travel stop and locking device outside the insulation. Valve disc position can be checked at any time. Optimum start-up and throttling due to standard throttling plug up to DN 100 (seat-guided V-port plug optionally available for all valve sizes to meet maximum throttling requirements). When the valve is fully open, the bellows is confined within the valve body, protected from pressure surges. Little heat loss during operation due to short and even bonnet suitable for easy and inexpensive insulation. Added protection against fatigue fracture: The bellows is welded to the stem, so no vibrations are transmitted from the valve disc. Back-up gland packing provides additional safety in case of defective bellows. Colour coding for identification of valve design during replacement work. The disc type and seat/disc interface material can be verified without removing the insulation. Space-saving non-rising handwheel. Reduced maintenance costs due to replaceable valve disc. Instead of replacing the complete upper section, only the valve disc is replaced if necessary.