Piston Plunger Pump
Mechanical Diaphragm Pump

For dosing applications which require a greater flow and / or a higher pressure output than our range of electronic chemical dosing pumps. We offer a range of piston plunger dosing pumps and mechanical diaphragm dosing pumps which may be fitted with either three phase or single phase electric motors.

For automatic control from a 4 - 20mA control signal we are able to offer a servo motor which slowly adjusts the metering pump stroke length over a range of 0 - 100 % An alternative is to fit an oversized motor and control the pump speed by an inverter this is best limited to a speed range of 30 to 100% of the pumps speed.

Our motor driven dosing pump are supplied as follows:

TAM 2S Mechanical Diaphragm Dosing Pump

Mechanical diaphragm dosing pumps where the diaphragm is coupled directly to the mechanical actuator supplied in 5 sizes with outputs up to 65 L/Hr with either Polypropelene (PP) or stainless steel heads as standard with optional PVC or PVDF also availalble on request

Offering a cost effective diaphragm dosing solution to many dosing applications.

TAM2S Mechcanical Diaphragm Dosing Pump Outputs

Flow Rate	Pressure
0-15 Litres / Hour	5 Bar
0-20 Litres / Hour	5 Bar
0-30 Litres / Hour	5 Bar
0-42 Litres / Hour	5 Bar
0-60 Litres / Hour	5 Bar

The TAM2S Series of Mechanical Diaphragm Dosing Pump have adjustable stroke length control

Pistron Plunger Dosing Pump TAP 15 and TAP 25

Piston Plunger Chemical Dosing Pump of simple design and construction ideally suited to dosing non abrasive solutions or where a high pressure pump is required. The Piston within the Piston Plunger Pump are made from either stainless steel or ceramic with either stainless steel or PVC heads as standard, with other options of head material to special order.

TAP Series Piston Plunger Metering Pumps are supplied in 2 sizes

TAP15 with a 15mm stroke length

Tap 25 with a 25mm stroke lenght

TAP Series High Pressure Piston Plunger Pumps

Flow Rate	Stainless Steel Head	PVC Head
0-70 Litres / Hour	20 Bar	10 Bar
0-110 Litres / Hour	17 Bar	10 Bar
0-170 Litres / Hour	10 Bar	10 Bar
0-220 Litres / Hour	8 Bar	8 Bar
0-304 Litres / Hour	6 Bar	6 Bar

Standard electric motors are 400 volt 3 phase 50Hz or 230 volt single phase with Ex-D motors 110 volt single phase and 60Hz motors being available to order. If using an invertor with a TAM series High Pressure Piston Plunger Dosing Pump we recommend an over sized motor is fitted.

Mechanical Diaphragm Dosing Pump: Tam 2, 4, 6

The TAM 2, TAM 4, and Tam 6 Series of Mechanical Diaphragm Dosing Pumps were conceived with simple design and construction in mind and offer excepgtional value. The diapgragm is coupled directly to the mechnanical actuators providing a positive dosing action.

The outputs from the range are as follows:

TAM2, TAM4, & TAM6
Mechanical Diaphragm Dosing Pump Outputs

Flow Rate	Pressure
0-20 Litres / Hour	10 Bar
0-26 Litres / Hour	10 Bar
0-40 Litres / Hour	10 Bar
0-60 Litres / Hour	10 Bar
0-80 Litres / Hour	10 Bar
0-120 Litres / Hour	10 Bar
0-155 Litres / Hour	7 Bar
0-220 Litres / Hour	7 Bar
0-310 Litres / Hour	7 Bar
0-230 Litres / Hour	5 Bar
0-330 Litres / Hour	5 Bar
0-460 Litres / Hour	5 Bar

Standard electric motors are 400 volt 3 phase 50Hz or 230 volt single phase with Ex-D motors 110 volt single phase and 60Hz motors being available to order. For use with invertors we recommend an over sized motor be fitted.

Piston Plunger Pump Accessories
Mechanical Diaphragm Pump Accessories

To complement our motor driven chemical dosing pump range we also supply a range of accessories to complete your dosing system comprising of:

Loading valves to prevent syphoning when the dosing point is lower than the chemical storage tank.

Pressure relief valves or safety valves designed to relive the pressure in the discharge line in the event of a blocked dosing line or one with a valve installed in the line. (not recommended).

Injection valves for dosing into pipe work or the side of a full vessel usually has a non return function built in to prevent back feeding of the chemical when the pump is not pumping.

Foot valves for installation when pumping out of a vessel to prevent the Piston Plunger Pump or Mechanical Diaphragm Pump losing its prime when not pumping.

Other items can be supplied; please call us with your requirements.