![]() ![]() ![]() In this day and age, most people do not have the experience or resources to cast effective spells. Spell Casting Services Call ☎ +27765274256Ī spell is only as powerful as the witch who casts it. For more information, Your Partners in Pumping are available at 26 or to the International Council of Witchcraft Voodoo Master Spell Casters WhatsApp ☎ +27765274256 JMI Pump Systems professionals are able to assist you with finding the best duplex system for your application. The standard covers we provide will typically maintain separate access for pumps and floats for improved serviceability. JMI Pump Systems also offers an assortment of steel, stainless steel, and custom PVC cover options for pump basins as well as packaged systems with controls. PLC controls can be enhanced with an HMI (Human Machine Interface) Touch Display to directly interact with sensors, valves, pumps, motors, and more. The controls can be purpose-built, a PLC or programable I/O. It is highly recommended to have separate circuits for both pumps and the alarm, totaling three circuits. If one breaker is being used for the incoming pump power for both pumps, it needs to be sized for the possibility of both pumps starting and running at the same time. The alarm must be installed on a separate electrical circuit, separate from the circuits feeding the pumps. The next time the lead float is triggered, the other pumps will assume the “lead” role. At this time, the pump(s) will continue to run until the stop float is lowered to the stop position. If the liquid reaches this float, the lag pump will turn on and the alarm will sound, warning there is a system problem. In a three float system, the third float is the lag/alarm float. The lead float is the float that runs whichever pump happens to be called on for at that cycle. The stop float is the float that turns off whichever pump was called on to run. There are some systems that do use four floats, separating the lag and the alarm function. The alternating control panel is typically operated by three control float switches: stop float, lead float, and lag/alarm float. If one pump needs to be serviced, the system remains automatic by utilizing the lag pump. In wastewater and sewer applications, the peak flow needs to be able to be pumped by the lift station even if it never occurs.Īn alternator controlling the duplex system allows the pumps to cycle between starts, resulting in even wear on the pumps. The duplex design is often referred to as lead/lag systems because the standby pump (lag) is activated as demand exceeds the capacity of the lead pump or if the lead pump were simply to fail.įor example, a typical design requirement for pumping wastewater is that a single pump will discharge more than the peak inflow. The duplex pump system is one of the most common configurations in a pump station design, providing efficiency and redundancy. Duplex systems are also used in large volume stormwater pump stations, as well as when redundancy is desired. Example: (WD1P-4-1021-C50) Indicates 50’ cord lengths for all floats.In Wisconsin, duplex pump systems are required by code in commercial buildings when there are three or more water closets or more than 20DFU’s draining into a sewage basin. *Additional cord length greater than 20’: Specify after C. SS6 = Upgraded Enclosure (316 Stainless Steel) SS4 = Upgraded Enclosure (304 Stainless Steel) SFD = Seal Failure Circuit w/ Indicator Lights PX = Pump Portal® Wireless Remote System Monitoring.LAD/LAW = Lightning Secondary Surge Arrestor (LAD Delta / LAW Wye) GR = Generator Receptacle, Includes Transfer Switch Upgraded pump protection: Motor protective switches included for both pumps (branch circuit protection, adjustable overload and disconnect) and thermal cutout with indicatorsĢ8 = Power On Dry Contact (Normally Open)Ĭ = Additional Cord Length Per Foot Per Component*ĬCD = Cycle Counter w/ LCD Display and ResetĬO = Convenience Outlet (User to supply 120 VAC)ĮTD = Elapsed Time Meter w/ LCD Display and Reset Remote monitoring dry contacts: High Liquid, Pump Run(s), Pump #1 Fault, and Pump #2 Fault Pump control visible indicators: Pump #1 and #2 hand-off-auto (H.O.A.) switch, green Pump Run lights, red Pump Fault lights with reset button, and Power On lightĪlarm visible indicators: Red beacon alarm light, alarm test and silence buttonsĪlarm horn sounds at 85 decibels at 10 feet Indoor/Outdoor NEMA 4X rated enclosure: Heavy duty polycarbonate with stainless steel lockable latchesĭuplex provides: Two-pump alternation and high demand two-pump operation UL listed for the United States and Canada (panel and controls) ![]()
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