ZPA205-210 - 3 Pages

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ZPA205-210

Catalog excerpts

CONTROL PISTON ACTUATED VALVE WITH INTEGRATED POSITIONER, TECHNICAL SPECIFICATIONS Media: water, oil, air, aggressive media, steam© Pilot media: dry and filtered air Cmesh 25 pm] Body material: cast AISI 316L CCF3M], see page 37 Bonnet material: cast AISI 316L CCF3M], see page 37 Actuator body material: Polyamide PA6 (reinforced fiberglass 30°/o] Seal material: PTFE Flow characteristic: linear or equal percentage Positioner enclosure: anodized aluminium (black] Maximum power consumption: 6W C0.24A] Function: NC [Direct] / NO (Reverse] Set-up point: self-adjusting valve Fail Safe Position: 'closed' or 'maintained' Electrical connections: M23 connector, 12 poles Actuator housing rotation 360° Connector rotation 360° [90° steps] Seal material in PEEK Body and shaped plug with hardening treatment Body connection options: threaded, flanged, butt weld and clamp O Steam max. working pressure 10 bar C9 barg]

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CONTROL PISTON ACTUATED VALVE WITH INTEGRATED POSITIONER, DN15 ÷ DN50 - STAINLESS STEEL ELECTRICAL CONNECTION PIN CONNECTOR PIN 1 0-10V (+) set-point 3 4 Test point DIMENSIONS & WEIGHTS DIMENSIONS & WEIGHTS DIMENSIONS & WEIGHTS DIMENSIONS & WEIGHTS We reserve the right to make changes without notice DIMENSIONS & WEIGHTS

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CONTROL PISTON ACTUATED VALVE WITH INTEGRATED POSITIONER, OPERATING PRINCIPLES AND DESCRIPTION M&M control piston actuated valves are operated by a compact pneumatic integrated positioner working in a closed loop. PICTURE A shows the operating layout: the set-point signal (coming from the control panel of the plant] is compared with the internal signal [feed-back] of the position sensor. When the two values don't match, the electronic system inside the valve operates two microvalves [which open or close the pilot air feeding] to change the stroke until both signals match. The...

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