Highly accurate delivery of off-gassing and viscous chemicals
Pulsafeeder® NextStep Series Pumps
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PVDF construction and wide 3333:1 turndown ratio
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Integral low-level alarm switch prevents pump from running dry
NextStep stepper motor metering pumps deliver exceptional reliability, accuracy and repeatability in chemical distribution processes. They feature an advanced microprocessor-driven stepper motor that offers high resolution of 4800 steps, ensuring precise control over both discharge and suction strokes.
NextStep pumps offer a wide range of control options, including proportional control, constant output mode, and batch control—programmable via a user-friendly dial knob. The large multicolor backlit display shows pump status, making it easy to monitor and adjust settings. Additionally, the pumps support remote operation for seamless process management from a distance.
Pumps allow you to control capacity from 100% to 0.1%. Slow Mode ensures consistent metering of challenging chemicals, such as those that off-gas or have high viscosity. PPM Mode does the math for you—it adjusts pump output based on input from a water meter.
NextStep pumps that are capable of Modbus integration and 4-20 mA output are also available. Contact USABlueBook for more information.
Pumps include:
injection valve, foot valve/strainer with integrated low tank level switch, 13 feet of PVDF suction/discharge tubing, 6.5 feet of PVC bleed valve tubing, 8 feet of external signal cable and 6.5 feet of standby/alarm cable.
alarm relay (selectable as NC or NO: level, stand-by, overflow, high temperature, no input, overpressure)
Power:
120 VAC
PPM Mode adjusts pump output based on water meter input
The NextStep pump features an innovative PPM Mode that removes the need for complicated dosage mathematics. PPM mode ensures a target Parts per Million (PPM) of chemicals in a process. It uses user-defined criteria: chemical solution strength, target PPM, and water meter output (gallons per pulse). The pump measures the water meter signal and adjusts its capacity to maintain the target PPM.
Chlorine & General
Pumps for Chlorine and General Chemicals
Use with aluminum sulfate (alum), calcium hydroxide, calcium hypochlorite, copper sulfate, ferric chloride, hydrochloric acid, 30% hydrogen peroxide, 65% nitric acid, 50% phosphoric acid, 0% potassium permanganate, sodium bisulfite, 12.5% sodium hypochlorite, 98.5% sulfuric acid. Call for compatibility with other chemicals. Wetted materials: PVDF head, Ceramic check balls, PTFE diaphragm and FKM seats/O-rings.
Use with fluoride and 40% hydrofluoric acid. Call for compatibility with other chemicals. Wetted materials: PVDF head, PTFE check balls, PTFE diaphragm and FKM seats/O-rings.
Use with ferric sulfate, 30% hydrogen peroxide and 50% sodium hydroxide (caustic). Call for compatibility with other chemicals. Wetted materials: PVDF head, Ceramic check balls, PTFE diaphragm and EPDM seats/O-rings.
