fatigued diaphragm switches

While the 221526 is factory-calibrated for Natural Gas

as the bellows-driven spindle provides high closing/opening force to clear small particulates

Built with a corrosion-resistant bronze body and finished in polished chrome

always use the 350F rollout switch specified by the manufacturer

Johnson Controls V43BS-3 Regulating Valve 322055-301 fatigued diaphragm switchesThe Johnson Controls V43BS 3 is a 2 inch, heavy duty pressure actuated water regulating valve engineered for precision head pressure control in water cooled condensers. Constructed with a red brass body to withstand high stress environments, this valve is NAVSEA certified, making it the industry standard for naval and marine applications where MIL spec compliance is mandatory. This model features a four hole ASME flanged connection and operates within