ID
1349865
1-2 weeks delivery time
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The Flojet D3631H1311AR Duplex II diaphragm pump is a 115V AC unit with a polypropylene pump body, EPDM diaphragm, and Santoprene check valves. It uses a medium-pressure cam and an external bypass set to 50 PSI, with no switch (manual on/off control required). The pump is self-priming up to 8 ft (2.4 m), can run dry without damage, has 3/8 inch NPT female inlet and discharge ports, operates on 50/60 Hz power, and has a maximum temperature rating of 140°F; weight is 5 lb.
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Duplex II Diaphragm Pump With 115V AC Motor
The Flojet D3631H1311AR is a Duplex II series diaphragm pump for liquid transfer and general industrial uses such as spraying, cooling, circulation, filtration, and dispensing. It is built with a polypropylene body, an EPDM diaphragm, and Santoprene check valves, and uses an external bypass system to manage pressure. This version has no switch and will continue to run until power is manually turned off.
Technical Specifications
Pump Type Diaphragm pump (Flojet Duplex II series) Body Material Polypropylene Diaphragm Material EPDM Check Valve Material Santoprene Cam Medium pressure cam Switch No switch Bypass Setting 50 PSI pressure bypass (external bypass; internal flow bypass when pressure is over 50 PSI) Motor Voltage 115V AC Frequency 50/60 Hz Motor Type Permanent magnet motor with solid state rectifier and full RFI suppression Self-Priming Up to 8 ft (2.4 m) Run-Dry Capability Can run dry without damage Max Fluid Temperature 140°F Inlet Port 3/8 inch NPT female Discharge Port 3/8 inch NPT female Max Inlet Pressure 30 PSI (2.1 bar) Weight 5 lb
Features
- External bypass system set to 50 PSI
- Self-priming up to 8 ft (2.4 m)
- Run-dry capability without damage
- Pump head can be rotated in 90-degree increments to simplify plumbing
- Designed for intermittent duty cycles; can be run continuously for short periods of time
Product Details
- Typical uses: liquid transfer, spraying, cooling, circulation, filtration, and dispensing
- Mounting guidance: mount in a dry, adequately ventilated area; if outdoors, shield from water, dust, sunlight, and wash-down spray
- Plumbing notes: tubing should be minimum 3/8 inch ID and at least 20 inches long; avoid crimping or kinking
- Check valve note: if a check valve is installed, cracking pressure must be no more than 2 PSI (0.14 bar)
- Strainer recommendation: use a minimum 40 mesh strainer or filter in the inlet line
- Electrical note: follow applicable electrical and safety codes; confirm the power source matches 115V AC
- Safety: do not pump flammable fluids (gasoline, kerosene, fuel oil, etc.) and do not use in an explosive environment
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