Positive Displacement Pumps

Positive displacement pumps are speciality pumps that provide an approximate constant flow of fluid at the fixed speed. Pump trap a fixed amount of the fluid and then force it into a discharge pipe. Positive displacement pumps can produce the same flow at a given speed (RPM) no matter what the discharge pressure is. These type of pumps cannot operate against the closed valve because they have n...

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RS PRO 4 Piston on Demand Diaphragm Positive Displacement Pump, 17L/min, 2.7 bar, 12V
RS PRO 4 Piston on Demand Diaphragm Positive Displacement Pump, 17L/min, 2.7 bar, 12V
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RS Stock No.: 326-881Brand: RS PRO

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RS Pro
4 Piston on Demand
-
Diaphragm
17L/min
-
1/2, 3/4in
-
2.7 bar
-
IP55
-
50°C
Polypropylene
-
12V
RoHS, CE Declarations
-
Polypropylene
No
RS PRO 4 Piston on Demand Diaphragm Positive Displacement Pump, 17L/min, 2.7 bar, 230V
RS PRO 4 Piston on Demand Diaphragm Positive Displacement Pump, 17L/min, 2.7 bar, 230V
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RS Stock No.: 326-875Brand: RS PRO

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RS Pro
4 Piston on Demand
-
Diaphragm
17L/min
-
1/2, 3/4in
-
2.7 bar
-
IP55
-
50°C
Polypropylene
-
230V
CE Declarations, RoHS
-
Polypropylene
No
RS PRO Submersible Electric Positive Displacement Pump, 18L/min, 1bar, 12V
RS PRO Submersible Electric Positive Displacement Pump, 18L/min, 1bar, 12V
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RS Stock No.: 326-883Brand: RS PRO

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RS Pro
Submersible
-
Electric
18L/min
-
1/2 in
1/2 in Hose Tail
1bar
0.5 in
-
-
80°C
Stainless Steel
-
12V
CE Declarations, RoHS
48W
Polypropylene, Stainless Steel
No
RS PRO Diaphragm Electric Positive Displacement Pump, 380ml/min, -500/800 mBar, 1.5V, 5 V
RS PRO Diaphragm Electric Positive Displacement Pump, 380ml/min, -500/800 mBar, 1.5V, 5 V
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RS Stock No.: 702-6898Brand: RS PRO

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RS Pro
Diaphragm
-
Electric
380ml/min
-
2.4 mm
-
-500/800 mBar
-
IP50
D250
100°C
Aluminium
-
1.5, 5V
No
0.48W
Nitrile, Silicone, Anodised Aluminium, Stainless Steel
No
SMC Diaphragm Air Positive Displacement Pump, 10 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 10 L/h, 1.05 Mpa
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RS Stock No.: 426-495Brand: SMCManufacturers Part No.: PAX1212-F03

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SMC
Diaphragm
Threaded
Air
10L/h
-
3/8 in
Threaded
1.05 Mpa
3/8 in
-
PAX1000 (PAX1212)
60°C
Stainless Steel
-
-
RoHS compliant (RS listing)
-
-
No
SMC Diaphragm Air Positive Displacement Pump, 12 L/h, 0.75 Mpa
SMC Diaphragm Air Positive Displacement Pump, 12 L/h, 0.75 Mpa
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RS Stock No.: 426-490Brand: SMCManufacturers Part No.: PA3213-F03

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SMC
Diaphragm
Threaded
Air
12L/h
-
3/8 in
Threaded
0.75 Mpa
3/8 in
-
PA3000
60°C
Stainless Steel
-
-
RoHS
-
Scs14 (Stainless Steel), Perfluoroalkoxy Check Valves, Polytetrafluoroethylene, Polytetrafluoroethylene Diaphragm
ATEX
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
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RS Stock No.: 426-554Brand: SMCManufacturers Part No.: 56-PA3210-F03

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SMC
Diaphragm
-
Air
20L/h
-
3/8 in
-
1.05 Mpa
3/8 in
-
PA3000
50°C
Stainless Steel
-
-
ATEX Ex h certifications (model‑specific), RoHS
-
Scs14 (Stainless Steel), Nitrile Butadiene Rubber Diaphragm, Perfluoroalkoxy Check Valves, Polytetrafluoroethylene
ATEX
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
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RS Stock No.: 426-486Brand: SMCManufacturers Part No.: PA3110-F03-N

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SMC
Diaphragm
Threaded
Air
20L/h
-
3/8 in (G Thread)
Threaded
1.05 Mpa
1/4 in (G Thread)
-
PA3000
60°C
Aluminium
-
-
RoHS Compliant
-
Polytetrafluoroethylene Diaphragm, Aluminium/Polytetrafluoroethylene
No
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
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RS Stock No.: 426-488Brand: SMCManufacturers Part No.: PA3210-03

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SMC
Diaphragm
-
Air
20L/h
-
3/8 in
-
1.05 Mpa
3/8 in
-
PA3000
60°C
Stainless Steel
-
-
RoHS
-
-
No
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
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RS Stock No.: 426-485Brand: SMCManufacturers Part No.: PA3110-03

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SMC
Diaphragm
-
Air
20L/h
-
3/8 in
-
1.05 Mpa
1/4 in
-
PA3000 (PA)
60°C
Aluminium
-
-
RoHS
-
-
No
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 20 L/h, 1.05 Mpa
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RS Stock No.: 426-489Brand: SMCManufacturers Part No.: PA3210-F03-N

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SMC
Diaphragm
Threaded
Air
20L/h
-
3/8 in
Threaded
1.05 Mpa
3/8 in
-
PA3000
60°C
Stainless Steel
-
-
RoHS
-
Polytetrafluoroethylene Diaphragm, Polytetrafluoroethylene, Scs14 (Stainless Steel), Perfluoroalkoxy Check Valves
No
SMC Diaphragm Air Positive Displacement Pump, 45 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 45 L/h, 1.05 Mpa
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RS Stock No.: 426-491Brand: SMCManufacturers Part No.: PA5110-F06-N

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SMC
Diaphragm
Threaded
Air
45L/h
6m
3/4 in
Threaded
1.05 Mpa
3/4 in
-
PA
60°C
Aluminium
-
-
RoHS, ATEX
-
Likely Aluminium + Polytetrafluoroethylene Diaphragm
ATEX
SMC Diaphragm Air Positive Displacement Pump, 45 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 45 L/h, 1.05 Mpa
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RS Stock No.: 426-492Brand: SMCManufacturers Part No.: PA5210-F04

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SMC
Diaphragm
Threaded
Air
45L/h
-
1/2 in
Threaded
1.05 Mpa
1/2 in
-
PA
60°C
Stainless Steel
-
-
JIS Symbol
-
Polytetrafluoroethylene Diaphragm, Polytetrafluoroethylene, Perfluoroalkoxy Check Valves, Scs14 (Stainless Steel)
ATEX
SMC Diaphragm Air Positive Displacement Pump, 45 L/h, 1.05 Mpa
SMC Diaphragm Air Positive Displacement Pump, 45 L/h, 1.05 Mpa
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RS Stock No.: 426-494Brand: SMCManufacturers Part No.: PA5210-F06

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SMC
Diaphragm
Threaded
Air
45L/h
6m
3/4 in (20 A) Female G-Thread
Threaded
1.05 Mpa
3/4 in
-
PA
60°C
Stainless Steel
-
-
RoHS, ATEX Cat 3
-
Perfluoroalkoxy Check Valves, Scs14 (Stainless Steel), Polytetrafluoroethylene Diaphragm, Polytetrafluoroethylene
ATEX
Xylem Flojet Diaphragm Air Positive Displacement Pump, 19 L/min, 6.9 bar
Xylem Flojet Diaphragm Air Positive Displacement Pump, 19 L/min, 6.9 bar
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RS Stock No.: 667-9113Brand: Xylem FlojetManufacturers Part No.: G573215A

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Xylem Flojet
Diaphragm
-
Air
19L/min
4.5m
1/2 in
-
6.9 bar
1/2 in
-
G5732
48.9°C
Polypropylene
-
-
No
-
Hastelloy C, Polypropylene, Santoprene, Viton
No
Verderflex Peristaltic Electric Positive Displacement Pump, 0.24L/min, 1 bar, 12V dc
Verderflex Peristaltic Electric Positive Displacement Pump, 0.24L/min, 1 bar, 12V dc
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RS Stock No.: 705-6671Brand: VerderflexManufacturers Part No.: AU R2550120 RS1

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Verderflex
Peristaltic
-
Electric
0.24L/min
10m
6 mm
-
1 bar
-
-
R2550
40°C
Polycarbonate, ABS
-
12V dc
No
6VA
-
No
Verderflex Peristaltic Electric Positive Displacement Pump, 0.12L/min, 1 bar, 12V dc
Verderflex Peristaltic Electric Positive Displacement Pump, 0.12L/min, 1 bar, 12V dc
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RS Stock No.: 705-6675Brand: VerderflexManufacturers Part No.: AU R2550060 RS1

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Verderflex
Peristaltic
-
Electric
0.12L/min
10m
6 mm
-
1 bar
-
-
R2550
40°C
Polycarbonate, ABS
-
12V dc
No
6VA
-
No
Xylem Flojet Diaphragm Air Positive Displacement Pump, 19 L/min, 8.27 bar
Xylem Flojet Diaphragm Air Positive Displacement Pump, 19 L/min, 8.27 bar
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RS Stock No.: 667-9116Brand: Xylem FlojetManufacturers Part No.: G575215A

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Xylem Flojet
Diaphragm
-
Air
19L/min
4.5m
1/2 in, 1/4 in
-
8.27 bar
1/2 in
-
G5752
49°C
Polypropylene
-
-
No
-
Santoprene, Hastelloy C, Polypropylene, Perfluoroelastomer, Viton
No
W Robinson And Sons Drum Electric Positive Displacement Pump, 40L/min, 12V dc, 24 V dc
W Robinson And Sons Drum Electric Positive Displacement Pump, 40L/min, 12V dc, 24 V dc
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RS Stock No.: 493-1920Brand: W Robinson And SonsManufacturers Part No.: 7043 RS

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W Robinson And Sons
Drum
-
Electric
40L/min
12m
3/4 in
-
-
-
IP55
-
-
-
-
12, 24V dc
No
-
-
No
ProMinent Peristaltic Electric Positive Displacement Pump, 1.6L/h, 1.5 bar, 230V
ProMinent Peristaltic Electric Positive Displacement Pump, 1.6L/h, 1.5 bar, 230V
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RS Stock No.: 121-8599Brand: ProMinentManufacturers Part No.: DF2A0216P00A10W1

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ProMinent
Peristaltic
-
Electric
1.6L/h
-
4 mm
-
1.5 bar
-
IP65
DF2a
20°C
-
-
230V
EHEDG (for Sigma hygienic pumps)
5W
Graphite, Clear Acrylic, Polytetrafluoroethylene, Fluorelastomer, Stainless Steel, Ruby, Polyvinyl Chloride, Ceramic, Carbon, Glass, Polyvinylidene fluoride, Hastelloy C, Polypropylene, Ethylene Propylene Diene Monomer, Chlorotrifluoroethylene
No

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