QBY Marine Air Operated Pneumatic Diaphragm Bilge Pump

Overview

QBY air operated pneumatic diaphragm pumps not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self-pumping pump, diving pump, shield pump and impurity pump etc. It’s unnecessary to pour the drawing water; wide flow and good performance. The diameter allowed to pass the Max grain reaches 10mm. the damage is very less to the pump while exhausting the slurry and impurity. The delivery Head and flow can pass the pneumatic valve open to realize the stepless adjustment; this pump has no rotary parts and no bearing seals. The diaphragm will completely separate the exhausted medium and pump running parts, working medium. The conveyed medium can’t be leaked outside. Thus is will not cause the environmental pollution and human body safety dangerous while exhausting the toxin and flammable or corrosive medium; no electricity, it’s safe and reliable while using in the flammable and explore places; it can be soaked in medium; it’s convenient to use and reliable to work. Only open or close the gas valve body while starting or stopping. Even if no medium operation or pausing suddenly for long time because of accident matters, the pump will not be damaged caused by this. Once over-loading, the pump will automatically stop and possesses the self protection function. When the load recovers normally, it also can start automatically; simple structure and less wearing parts. This pump is simple in structure, installation and maintenance. The medium conveyed by the pump will not touch the matched pneumatic valve and coupling lever etc. not like other kinds pumps, the performance will drop down gradually because of the damages of rotor, gear and vane etc; it can  transmit the adhesive liquid (the viscosity I below 1000centipoise); this pump needn’t the oil lubricant. Even if idling, it has and influence to the pump. This is a characteristic of this pump.

Features

1. No need to irrigate and divert water, the suction lift is up to 7m, the lift is up to 50m, and the outlet pressure is ≥6kgf/cm2;

2. The flow is spacious, the passing performance is good, and the maximum particle diameter allowed to pass is 10mm. When pumping mud and impurities, the pump wears very little;

3. The lift and flow can be adjusted steplessly through the opening of the air valve (the air pressure is adjusted between 1-7kgf/cm²);

4. The pump has no rotating parts and no shaft seal. The diaphragm completely separates the pumped medium from the moving parts and working medium of the pump, and the conveyed medium will not leak to the outside. Therefore, when pumping toxic, easy-to-play or corrosive media, it will not cause environmental pollution and endanger personal safety;

5. There is no need to use electricity, and it is safe and reliable to use in flammable and explosive places;

6. Can be immersed in the medium to work;

7. The function is convenient and the work is reliable. It only needs to simply open and close the gas valve to start and stop. Even if there is no medium running for a long time or sudden shutdown due to unexpected situations, the pump will not be damaged. Ground shutdown, with self-protection performance, when the load returns to normal, it will automatically start running again;

8. The structure is simple and the wearing parts are few. The pump has a simple structure and is easy to install and maintain. The medium conveyed by the pump will not contact the moving parts such as the gas distribution valve and the connecting rod, unlike other types of pumps due to the rotor, piston, gear , The wear of the blades and other components will gradually reduce the performance;

9. It can transport viscous liquid (viscosity below 10,000 centipoise);

10. The pump does not need to be lubricated with oil, even if it is idling, it has no effect on the pump

Structural Specifications

The excellent design of our company's engineers, components made of high-quality materials can extend the life of the pump, reduce the frequency of maintenance, operation stability in complex environments, but it  also cause different prices. If you need more details about this, you can click on the news or send an email to ask us

Performance Parameter

(In addition, please provide the parameter of the marine pump you need and we can customize the suitable type for you.)

Note: The pump housing materials are: cast iron, aluminum alloy, stainless steel, engineering plastics.

Cast iron, aluminum alloy pumps are originally equipped with diaphragms, balls, and ball seats are NBR.

Stainless steel original diaphragm, ball and ball seat are neoprene. The diaphragm, ball and ball seat of the fluorine-lined pump are made of tetrafluoroethylene.

In addition, the fluorine-lined pump can be lined with F46 diaphragm.

And there are fluorine-lined diaphragm pumps are divided into: cast iron lined with PTFE, cast iron lined with F46.

Aluminum alloy lined with PTFE, aluminum alloy lined with F46.

Stainless steel (low nickel) lined with PTFE,

Stainless steel (low nickel) lined with F46.

Stainless steel (304) lined with F46.

Stainless steel (316L) lined with F46.

Engineering plastic lining F46.

Fluid rubber lining, fluid fluorine lining

Diaphragms used by diaphragm pumps according to different liquid media are: Nitrile, Neoprene, Viton, PTFE, F46.

The sealing seat is divided into nitrile, neoprene, fluororubber, and polytetrafluoroethylene.

The sealing ball is divided into nitrile, neoprene, teflon, stainless steel and ceramics.

to meet the needs of different users. It is placed in various special occasions to pump a medium that cannot be pumped by conventional pumps

Pump Picture