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Variable Frequency Controller

  MagVFC is a single-phase inverter controller designed for STP variable speed submersible pump.   The advantages of upgrading from fixed speed to variable speed are undeniable. Franklin's variable frequency controllers enable higher, consistent flow rates that not only bring benefits, but also eliminate potential wear and "water hammer" damage. The MagVFCTM inverter controller and four-wire plug are easy to install with the inverter pump motor assembly. Compatible with FE Petro brand systems and those of other competitors in one shifting package. MagVFCTM increases existing system flow and provides the flow you need as more dispenser guns work. During peak business hours, it provides steady flow and fast refueling in a way that no other station can do.   .tabs { LINE-HEIGHT: 26px; WIDTH: 1150px; HEIGHT: 30px; FONT-SIZE: 14px } .tabs UL { PADDING-BOTTOM: 0px; LIST-STYLE-TYPE: none; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px } .tabs UL LI { TEXT-ALIGN: center; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 30px; LIST-STYLE-TYPE: none; WIDTH: 120px; FONT-FAMILY: "宋体"; FLOAT: left; HEIGHT: 30px; COLOR: #000; MARGIN-LEFT: 2px; FONT-SIZE: 14px; BORDER-TOP: #ccc 1px solid; BORDER-RIGHT: #ccc 1px solid } .tabs UL LI.hover { BORDER-BOTTOM: medium none; FONT-FAMILY: "宋体"; COLOR: #5d8801; FONT-SIZE: 14px; FONT-WEIGHT: bold } .box1 { TEXT-ALIGN: left; WIDTH: 1150px; FONT-FAMILY: "宋体"; FONT-SIZE: 14px; BORDER-TOP: #ccc 1px solid } .tab1 { WIDTH: 1140px; HEIGHT: 260px } .tab3 { WIDTH: 1140px; HEIGHT: 260px } .tab4 { WIDTH: 1140px; HEIGHT: 260px } $(document).ready(function() { $(".tabs li:first").addClass("hover"); //为第一个LI添加当前效果样式 $(".box1>div:not(:first)").hide(); //隐藏其它的UL $(".tabs li").click(function() { //触发单击事件 $(".tabs li").removeClass("hover"); //去掉所有LI的样式 $(this).addClass("hover"); //为当前对象添加一个样式 $(".box1>div").hide(); //隐藏所有内容框 $("." + $(this).attr("id")).fadeIn('slow'); //显示当前内容框，slow可以缓慢显示 }); }); merit Water hammer effect Ordering Information   Upgrading to variable speeds can increase traffic and improve profits when more customers can refuel faster. Affordable upgrades require less investment than buying a complete inverter submersible pump because you also reuse most of your existing system components. Easy to install, replace the fixed-speed motor and control relay box and adjust the variable length submersible pump connection pipe or riser pipe accordingly. Increased traffic is automatically delivered to more refueling guns, maintaining increased refueling speed, canopy vehicle flow velocity and increased business volume.   The "water hammer effect" is defined as a sudden pressure spike caused by a sudden stop in a flow rate in a pressurized piping system. The water hammer effect is a worst-case scenario in a high-pressure fixed-speed submersible pump system. A fixed-speed pumping system cannot vary the flow rate as needed, and as a result, water hammer can occur when the flow is interrupted. The water hammer effect can cause system fatigue and exacerbate wear on system components, such as diaphragm valves, leak detectors or pendants in refined oil dispensers. The variable speed submersible pump operates at lower pressures and significantly reduces the effects of water hammer.     Model description      400693906* Inverter controller, AG compatible, 2 hp inverter, MagShell™      400693905 Inverter controller, AG compatible, 2 hp, non-MagShell™      402671906* Inverter controller, AG compatible, 4 hp inverter, MagShell™      402671905 Inverter controller, AG compatible, 4 hp, non-MagShell™ * Magshell™ Motor Schedule 40 risers are not used. Magshell™ has an outer diameter of 102.9 mm. Schedule 40 The inner diameter of the riser is 102.3 mm.  

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