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The PP6 positioner can control any valve that is actuated by a linear or rotary pneumatic actuator that conforms with NAMUR. It guarantees an exact proportionality between the stroke of the valve and the value of the pneumatic input signal into the positioner. The PP6 has a cast aluminium housing that is also treated for outdoor installation.
Les séries BVA 300 sont des actionneurs pneumatiques qui motorisent les robinets à tournant sphérique Spirax - Sarco pour de larges gammes d'applications industrielles.
Le positionneur pneumatique PP6 peut contrôler toute vanne actionnée par un actionneur pneumatique linéaire ou rotatif conforme avec le standard NAMUR.
Die pneumatischen Messwerkregler Serie 600 werden für Festwert- Druckregelungen eingesetzt.
Descrição As válvulas monobloco ABV21i e ABV40i Spirax Sarco de passagem reduzida são equipadas com atuador pneumático de retorno por mola 90º, para serviços de descarga de fundo de caldeira.
Le valvole a diaframma sono usate per controllare il flusso di acqua, liquidi, gas e vapori. La valvola è generalmente azionata da un regolatore pilota, che usa aria come fluido di servocomando, o da un convertitore che trasforma in pneumatico I'eventuale segnale elettrico proveniente dal sistema di controllo. L'apertura, la chiusura e I'azione modulante della valvola sono prodotte dalla variazione del segnale in uscita dal regolatore in funzione delle variazioni della grandezza controllata.
Les séries BVA300 sont des actionneurs pneumatiques qui motorisent les robinets à tournant sphérique Spirax Sarco pour de larges gammes d'applications industrielles.
The TN2000 series of pneumatic piston actuators are suitable for use with DN15 to DN100 Spira-trolTM control valves of which three versions are available: Single-acting (with spring), Double-acting (with spring) and Double-acting (no spring). The availability of these three versions meets the requirements of valves at various differential pressures and in a variety of applications.
Selection of Modulating Feedwater Valves Pneumatically Actuated