HONEYWELL VP512A1783 Unit Vent Valve, 16 Cv. A normally open, single seated, straight-through or angle globe valve used for proportional control of steam or hot water in unit ventilator applications. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.Features • Equal percentage, high lift throttling guide provides accurate control over wide load variations. • Molded replaceable composition disc for tight shut-off. • Replaceable brass seat. • Self-adjusting, spring-loaded Teflon™ packing. • Back-seating allows repacking without shutting down or draining system. • Rotatable actuator for aligning air connection with control air piping. • Integral union connection to simplify installation and service.
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