Chemyx Nexus Serial Ultra High-Pressure Pumps are designed to solve the toughest fluid delivery problems; from micro-flow to scale-up and pilot plant for chemicals, Oil & Gas, and other industries. The Pump system provides constant flow, constant pressure, and flow or pressure programming. The system has two configurations: single-pump or dual-pump. With the continuous valve system (CVS), the dual pump system will provide a continuous constant flow operation mode. The piston-driven pump module uses a single-speed gear train. Nitronic 50 is the standard material for cylinders, pistons, and caps, Standard seals are graphite-impregnated Teflon, providing long life under harsh operating conditions.

Technical Specifications

Nexus 75Nexus 150Nexus 260Nexus 350Nexus 700Nexus 1500
Cylinder Capacity2042100036025012766
Power100-120 VAC,200-240-VAC ,50/60 Hz100-120 VAC,200-240-VAC ,50/60 Hz100-120 VAC,200-240-VAC ,50/60 Hz100-120 VAC,200-240-VAC ,50/60 Hz100-120 VAC,200-240-VAC ,50/60 Hz100-120 VAC,200-240-VAC ,50/60 Hz
Dimensions 48(D) x 29(W) x 94(H) 48(D) x 29(W) x 94(H) 48(D) x 29(W) x 93(H) 48(D) x 29(W) x 93(H) 48(D) x 29(W) x 115(H) 48(D) x 29(W) x 115(H)
Weight(kg)40.836.534.034.938.038.1
Flow Rate (ml/min)0.01-8000.01-4000.001-1400.00001-1000.00001-500.00001-26
Flow Rate Accuracy± 0.5%± 0.5%± 0.3%± 0.3%± 0.3%± 0.3%
Maximum Seal Leakage21.510.50.250.2
Flow Rate Display Resolution0.01 µL/min0.01 µL/min0.01 µL/min0.01 µL/min0.01 µL/min0.01 µL/min
Displacement 74.17636.34613.0859.0874.6362.403
Refill Time 2.5 minutes 2.5 minutes 2.5 minutes 2.5 minutes 2.5 minutes 2.5 minutes
Refill or Depressurization on Rate0.01-8000.01-4000.001-1400.00001-1000.00001-500.00001-26
Pressure Range0- 1100 psi0- 2200 psi0- 3800 psi0- 5000 psi0- 10000 psi0- 22000 psi
Pressure Accuracy±0.5 % of full scale at constant temperature±0.5 % of full scale at constant temperature±0.5 % of full scale at constant temperature±0.5 % of full scale at constant temperature±0.5 % of full scale at constant temperature±0.5 % of full scale at constant temperature
Pressure Repeatabiility±0.5 % of full scale within 48 hours at constant temperature±0.5 % of full scale within 48 hours at constant temperature±0.5 % of full scale within 48 hours at constant temperature±0.5 % of full scale within 48 hours at constant temperature±0.5 % of full scale within 48 hours at constant temperature±0.5 % of full scale within 48 hours at constant temperature
Zero Pressure Drift±0.25 % of full scale within 48 hours at constant temperature±0.25 % of full scale within 48 hours at constant temperature±0.25 % of full scale within 48 hours at constant temperature±0.25 % of full scale within 48 hours at constant temperature±0.25 % of full scale within 48 hours at constant temperature±0.25 % of full scale within 48 hours at constant temperature
Pressure Display Resolution0.1 of selected unit0.1 of selected unit0.1 of selected unit0.1 of selected unit0.1 of selected unit0.1 of selected unit
Ambient Temperature Range5 - 40°C5 - 40°C5 - 40°C5 - 40°C5 - 40°C5 - 40°C
Humidity95% maximum95% maximum95% maximum95% maximum95% maximum95% maximum
Dead(Headspace) Volume(ml)5.052.81.421.251.251.25
Pollution on Degree222222
Installation CategoryIIIIIIIIIIII
Maximum Altitude2000m2000m2000m2000m2000m2000m