Mechanical Dosing Pumps provide excellent ways of metering chemical into pipes and tank for process control or batching applications. Each of the mechanical dosing pumps is driven from a motor and gearbox assembly which turns the rotational energy from the motor into a linear energy driving a piston.
Each dosing pumps works on the progressive cavity displacement principal based on a precise reciprocating gearbox, which provides an exact volumetric displacement ensuring a linear delivery of chemical at all stroke settings.
Due to the motor driving the piston mechanical dosing pumps are sometimes referred to as motor driven dosing pumps.
Each of the dosing pumps is fitted with a 3 phase motor ranging from 0.09kW to 0.75kW depending upon the output. We can also fit the mechanical dosing pumps with single phase 230 V AC motors if required.
The mechanical dosing pumps are available as either Mechanical Piston Dosing Pumps or Mechanical Diaphragm Dosing Pumps. In a mechanical piston pump the gearbox connects directly to a piston which is contact directly with the solution being dosed or metered into the process.
Piston dosing pumps benefit from being able to offer high dosing rates up to 1000 L / Hr and can dose at pressures up to 20.0 Bar pressure. Piston dosing pumps with slower gearboxes (58 strokes per minute) are excellent for dosing flocculant or other viscous solutions.
The Mechanical Diaphragm pumps have a PTFE diaphragm connected to the internal piston. This means that the mechanical diaphragm pumps only have the wetted parts from the head and the PTFE diaphragm in contact with the solution to be metered, this means that despite a lower dosing rate (460 L / Hr) and a maximum pressure of 10.0 Bar the mechanical diaphragm pumps are more suited for dosing concentrated chemical reagents.
Both the Piston Dosing Pump and the Mechanical Diaphragm Pump are fitted with a micrometer stroke adjustment dial, allowing the length of the stroke to be adjusted and the volume of chemical dosed to be reduced. Where possible we recommend against running a mechanical dosing pump at less than 20% of the pumps rated output to ensure that the dosing rate is precise.
The mechanical dosing pump range is called our TAM series of diaphragm dosing pumps. Within the TAM range we offer 4 different head sizes with differing output flow rates and output pressures.
Each of the mechanical diaphragm dosing pumps has a PTFE diaphragm, with the head materials manufactured in either 316 Stainless Steel, PolyPropylene, PVC, or PVDF for greater chemical resistance.
The piston dosing pumps are called our TAP series of piston dosing pumps and are available in 2 different ranges with different strokes lengths to provide differing outputs and pressures.
The TAP-15 series has a 15mm stroke length and an output flow up to 304 Litres / Hour and an output pressure up to 20.0 Bar.
The TAP-25 series has a 25mm stroke length and an output flow up to 1000 Litres / Hour and an output pressure up to 20.0 Bar.
Each of the piston dosing pumps are available manufactured in either 316 Stainless Steel or PVC with a ceramic piston.
Our TAM series of mechanical diaphragm dosing pump with output flow rates up to 460 L / Hr and output pressures suitable for up to 10.0 Bar.
The TAM series of mechanical diaphragm pumps are available with head materials manufactured in PolyPropylene, Stainless Steel, PVC or PVDF.
Our TAP series of piston dosing pump with output flow rates up to 1000 L / Hr and output pressures suitable for up to 20.0 Bar.
The TAP series are available with two different stroke lengths and supplied with the head materials manufactured in either Stainless Steel or PVC with ceramic piston.