Dual-Headed Peristaltic Pump Watson Marlow 520S IP 31
Article N° PE – 00648
It is a dual headed peristaltic pump which thus works with low pulsation. With the specially
developed glass damper the pulsation is almost zero.
Peristaltic pumps are the simplest possible pump, with no valves, seals or glands to clog or corrode. The fluid contacts only the bore of a tube, eliminating the risk of the pump contaminating the fluid, or the fluid contaminating the pump. Peristaltic pumps can operate dry without risk.
Suitable applications
Peristaltic pumping is ideal for most fluids, including viscous, shear-sensitive, corrosive and abrasive fluids, and those containing suspended solids. They are especially useful for pumping operations where hygiene is important. Peristaltic pumps operate on the positive displacement principle. They are particularly suitable for metering, dosing and dispensing applications. Pumps are easy to install, simple to operate and inexpensive to maintain.
The pump can be used for sterile applications when the hose elements are sterilised in the autoclave.
Nisco application
Used for VAR D continuous and VAR E in case of sterile application and/or abrasive particles.
Pump specifications
Supply voltage/frequency
100-120V/200-240V 50/60Hz 1ph, 135 VA
Full load current
<0.6A at 230V; <1.25A at 115V
Maximum voltage fluctuation
±10%
Enclosure rating
IP31 to BS EN 60529. Equivalent to NEMA 2, suitable for indoor use. Protected against dripping water and falling dirt. May be wiped with a damp cloth, but should not be immersed
Hose elements:
VAR D Continuous: ID 1,6 mm; PE-00647
VAR E: ID 3,2 mm; PE-00437
Operating temperature range
5C to 40C, 41F to 104F
Pump head for Nisco’s Encapsulators
505L (dual head for low pulsation feeding)
Humidity (non-condensing)
80% up to 31°C, 88F, decreasing linearly to
50% at 40°C, 104F
Please use the Info-Form to ask for the adequate encapsulation system for your specific applications.
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