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Food & Beverage Processing / Dairy & Meat / Motor Operated Diaphragm Pumps

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Duplex II AC Bypass Pump

Self-priming diaphragm pump with 110-240v AC electric motors. Flow rates from 4-8 litres/min (1-2.1 US gallons/min), pressure switch control or with a bypass, or both, capable of pressures up to 6.5bar (95psi)

Model No.: Duplex II AC Bypass Series

Handles Water-like and Views Liquids Up to 250 cP
Chemical-resistant polypropylene pump head for long life
Latest techhnology internal check-valves for reliable self-priming
Choice of elastomers for maximum chemical compatibility
Internal bypass for excellent performance range
Optional pressure-switch control to run the pump only as needed
Available with long running heavy duty motor with built-in thermal overload
Available with commercial-duty DC monitor for continuous operation

Specifications
14 Models
Downloads

Voltage	115 & 230, 50 or 60Hz (VAC)
Flow Rate	Up to 2.2 US Gallons/Min (8.6 Litres/Min)
Max. Pressure	up to 100psi (6.9bar)
Elastomers	EPDM, Santoprene, Nitrile or Viton
Port(s)	3/8"

D1625H1411A

Duplex II AC Bypass Pump

Voltage	115 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.8 (amp)
Max. Pressure	70psi (4.8bar) External Bypass
Elastomers	Santoprene Diaphragm and EPDM Valves

D7625I1411A

Duplex II AC Bypass Pump

Voltage	115 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.8 (amp)
Max. Pressure	70psi (4.8bar) External Bypass
Elastomers	Nitrile Diaphragm and Viton Valves

D1625F1411A

Duplex II AC Bypass Pump

Voltage	115 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.8 (amp)
Max. Pressure	70psi (4.8bar) External Bypass
Elastomers	Santoprene Diaphragm and Viton Valves

D1631H1311A

Duplex II AC Bypass Pump

Voltage	115 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.5 (amp)
Max. Pressure	50psi (4.1bar) External Bypass
Elastomers	Santoprene Diaphragm and EPDM Valves

D7635I1311A

Duplex II AC Bypass Pump

Voltage	115 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.7 (amp)
Max. Pressure	50psi (4.1bar) External Bypass
Elastomers	Nitrile Diaphragm and Viton Valves

D1631F1311A

Duplex II AC Bypass Pump

Voltage	115 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.5 (amp)
Max. Pressure	50psi (4.1bar) External Bypass
Elastomers	Santoprene Diaphragm and Viton Valves

Dx725H1411

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.8 (amp)
Max. Pressure	70psi (4.8bar) External Bypass
Elastomers	Santoprene Diaphragm and EPDM Valves

Dx725F1411

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.8 (amp)
Max. Pressure	70psi (4.8bar) External Bypass
Elastomers	Santoprene Diaphragm and Viton Valves

Dx731H1311

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.5 (amp)
Max. Pressure	50psi (4.1bar) External Bypass
Elastomers	Santoprene Diaphragm and EPDM Valves

Dx731F1311

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.5 (amp)
Max. Pressure	50psi (4.1bar) External Bypass
Elastomers	Santoprene Diaphragm and Viton Valves

D1725H1411ARL

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.8 (amp)
Max. Pressure	70psi (4.8bar) External Bypass
Elastomers	Santoprene Diaphragm and EPDM Valves

D1725F1411ARL

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.8 (amp)
Max. Pressure	70psi (4.8bar) External Bypass
Elastomers	Santoprene Diaphragm and Viton Valves

Dx731H1311xRL

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.5 (amp)
Max. Pressure	50psi (4.1bar) External Bypass
Elastomers	Santoprene Diaphragm and EPDM Valves

Dx731F1311xRL

Duplex II AC Bypass Pump

Voltage	230 (VAC)
Flow Rate	1.4 US Gallons/Min (5.3 Litres/Min)
Amp Draw	0.5 (amp)
Max. Pressure	50psi (4.1bar) External Bypass
Elastomers	Santoprene Diaphragm and Viton Valves

Technical Data Sheet

Duplex II (LP) Series Installation and Service Data

Duplex II (HP) Series Installation and Service Data