PDC designs rugged Metering Syringe Pumps for an extremely accurate injection of fluids
irrespective of viscosity into a system at a consistent flow and constant output pressure.
We design single and double barrel syringe pumps for batch and continuous flow operations.
In a continuous flow operation, one barrel is discharging fluid, while the other retracts,
pressurizes to set pressure and gets ready for transfer.
Positive Displacement Syringe Pumps
PDC's syringe pumps are designed to deliver liquids at a constant flow rate and
a constant output pressure. Fluctuations in the flow rate and output pressure are
minimal. We design simplex and duplex for batch and continuous operations.
Accuracy and repeatability of flow is 0.05%.
In a simplex syringe pump, a fluid contained in a body or pump head is forced into
the process system with a plunger. A syringe pump is a type of positive displacement
pump. Syringe pumps excel at injecting fluid at a volumetric flow rate
(generally slow) without generating any pressure pulsations. Depending on seal
design, syringe pumps are capable of pumping to very high pressures (up to 60,000 psig /4,100 barg).
Two simplex pumps can be coupled together to create a continuous pulse-less feed duplex pump.
Atofina, Air Liquide, Aristech, E-Ink, ExxonMobil, Dupont, Lucent Technologies, Nova Chemicals, Texas Petrochemicals, to name a few.
Barrel sizes range from 125cc to 1500 cc and can be built in accordance to customer specified materials,
which are compatible to the process. For example, stainless steel, Inconel®, Monel® or Hastelloy®.
The output flow rate can be adjusted to any desired value within a specified range. Flow rates can be entered
via the operator inter-face. This flow control system is calibrated specifically to each pump.
Please refer to the “Specifications” section for a selection of typical flow rate ranges (up to 400 ml/min).
PDC's syringe pumps will displace any liquid that can be moved into the pump head. Limitation on the liquid
may include ones with abrasives or suspended particles. The pump is certainly capable of moving liquids with
abrasives and suspended particles, however, abrasives may shorten the seal and plunger life, and the
particles may fall out in the pump head since a syringe pump has a slow moving plunger.
The extent of instrumentation typically depends upon the customer's requirements. PDC can provide basic or
very sophisticated control packages can tailor these systems to the customer's needs. This flexibility
prevents the user from being forced into using an off the shelf pump with a fixed configuration.
Temperature control jackets, heaters and controls can be supplied to maintain the pump barrels at constant
temperatures up to (450 °F/232 °C). This may be necessary to maintain accurate flows for temperatures sensitive process fluids.
