Pneumatic Chemical Injection Pump

Product Detail

Pneumatic Chemical Injection Pump

Compressed Air Driven chemical injection pump- DGGDSeries

We offer the most complete range of Air driven liquid pump models in the industry measured for:

A.Capability of ultimate pressure, flow or output horsepower. 

B.Compatibility with a broad variety of liquids, such as oil, water and chemical applications.




SUNCENTER pumps are air driven at a drive air pressure of 2 to 10bar (29 to145 psi) by the normal air compressor. Basically the principle of operation is similar to a reciprocating amplifier where control of the piston at the end position is regulated by a pilot operated 4/2 way valve.

Suncenter pumps feature a large air piston joint to a smaller diameter plunger. The pressure ratio is the difference of these two areas and is the method of determining maximum outlet pressure. Higher pressures obtained by using higher pressure ratios.Suncenter model numbers reflect the pumps nominal pressure ratios, while the technical data indicates exact ratios. The outlet pressure is easily to set through a simple air regulator. By multiplying the pressure ratio by the available shop air pressure, the nominal liquid pressure can be calculated.




SUNCENTER pumps are self priming. In general it is not necessary to use an air line lubricator. 

The liquid to be pumped flows into the suction chamber by the up-stroke of the drive piston. By this suction effect, the inlet check valve is opened and the outlet check valve is closed. The down-stroke generates the pressure at the liquid side. The inlet check valve is closed and the outlet check valve is opened by the generated pressure. SUNCENTER liquid pumps cycle automatically, where the pressure is built up the numbers of cycles slow down, the pump stops automatically when the output pressure forces are equal. The pump restarts with a slight drop in the outlet pressure or an increase in the air drive pressure. Pump performance can be affected by a number of conditions, such as freezing of muffler or pilot valves (which is caused by moisture in air lines), inadequate inlet air line sizes and dirty filers. Don’t reduce the indicated port sizes and consult SUNCENTER for exact flow conditions not shown in charts.




Key features include: 

·Compressed Air driven - no electricity required (connect to normal air compressor)

·In order to extend the lifetime of the pump, the driving air pressure should not be higher than 8 bar

·No airline lubricator required 

·Pressures to 640Mpa (6400 bar)  

·Wide range of models with different ratios

·Built-in-cooling on most models 

·Easy to install, operate and maintain

·Best price / performance ratio 

·No heat, flame or spark risk and explosion proof 

·Automatic pressure holding, whatever the cause of the pressure drop, the Suncenter pump will automatically start, keep the loop pressure constant






DGGD Series chemical injection pump technical specification


Model	Pressure  Boost Ratio	Driven air pressure PL	Formula to calculate outlet pressure	MAX Outlet Pressure	Liquid inlet Connection	Liquid outlet Connection	MAX Flow (L/min)**
DGGD4	4:1	3-8 bar	4XPL	32 bar	NPT1/2	NPT1/2	70.00
DGGD6	6:1	3-8 bar	6XPL	48 bar	NPT1/2	NPT1/2	48.60
DGGD10	10:1	3-8 bar	10XPL	80 bar	NPT1/2	NPT1/2	30.61
DGGD16	16:1	3-8 bar	16XPL	128 bar	NPT1/2	NPT1/2	19.73
DGGD28	28:1	3-8 bar	28XPL	224 bar	NPT1/2	NPT1/2	11.30
DGGD40	40:1	3-8 bar	40XPL	320 bar	NPT1/2	NPT3/8	7.69
DGGD64	64:1	3-8 bar	64XPL	512 bar	NPT1/2	NPT3/8	4.94
DGGD80	80:1	3-8 bar	80XPL	640 bar	NPT1/2	NPT3/8	3.96
DGGD100	100:1	3-8 bar	100XPL	800 bar	NPT1/2	NPT3/8	3.13
DGGD130	130:1	3-8 bar	130XPL	1040 bar	NPT1/2	M14*1.5	2.40
DGGD175	175:1	3-8 bar	175XPL	1400 bar	NPT3/8	M14*1.5	1.81
DGGD255	255:1	3-8 bar	255XPL	2040 bar	NPT1/4	M14*1.5	1.23
DGGD400	400:1	3-8 bar	400XPL	3200 bar	NPT1/4	M14*1.5	0.79

Should the chemical injection pump caters to your requirement, welcome to buy the equipment with our factory. Well-known as one of the professional manufacturers and suppliers, we're equipped with a productive factory to produce the best quality equipment for you.