QBY-25P 316 Stainless Steel Marine Sanitation Diaphragm Pneumatic Pumps with F46 diaphragmQBY-25P 316 Stainless Steel Marine Sanitation Diaphragm Pneumatic Pumps with F46 diaphragmQBY-25P 316 Stainless Steel Marine Sanitation Diaphragm Pneumatic Pumps with F46 diaphragmQBY-25P 316 Stainless Steel Marine Sanitation Diaphragm Pneumatic Pumps with F46 diaphragmQBY-25P 316 Stainless Steel Marine Sanitation Diaphragm Pneumatic Pumps with F46 diaphragmQBY-25P 316 Stainless Steel Marine Sanitation Diaphragm Pneumatic Pumps with F46 diaphragm

QBY-25P 316 Stainless Steel Marine Sanitation Diaphragm Pneumatic Pumps with F46 diaphragm

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Product Description

QBY Series 316 Stainless Steel Pneumatic Diaphragm Pump

Performance summary:

QBY air operated diaphragm pumps not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits the merits of self-pumping pump, diving pump, shield pump, slurry pump and impurity pump etc.

QBY pneumatic diaphragm pumps are the latest model at home.They are functioned to take out and suck in various corrosive liquid containing granules,Viscous,volatile,inflammable,explosive or poisonous liquid,porcelain slurry,mashed fruit,flue,the reclamation of residual oil in tanker,temporary reversion of tanker,etc.The performance parameters of this series are close to that of German WLLDENPUMPS and American MARIO-WPUMPS.The components in contact with flow are made of stainless steel ,aluminum alloy and cast iron, while diaphragm may be NBR,piton,neoprene or PTEE.

QBY pneumatic diaphragm pumps are driven by compressed air ,steam or industrial waste gas,suction head up to 7m ,delivery head between 0-50m,and flow infinitely adjustable between 0.8-30m3/h.
1.It’s unnecessary to pour the drawing water, the suction lift reaches 5 m height, the delivery lift reaches 70 m length and the export pressure ≥6bar.
2.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.
3.The delivery lift and flow can pass the pneumatic valve open to realize the step less adjustment (the pneumatic pressure adjustment is between 1-7bar).
4.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 it will not cause the environmental pollution and human body safety dangerous while exhausting the toxin and flammable or corrosive medium.
5.No electricity. It’s safe and reliable while using in the flammable and explore places.
6.It can be soaked in medium.
7.It’s convenient to use and reliable to work. Only open or close the gas valve body while starting or stopping. Even if medium operation or pausing suddenly for long time because of accident matters, the pump will not be damaged caused by this. One over-loading, the pump will automatically stop and possesses the self protection function. When the load recovers normally, it also can start automatically.
8.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.
9.It can transmit the adhesive liquid (the viscosity is below 10000 centipoises).
10.This pump needn’t the oil lubricant. Even if idling, it has any influence to the pump. This is a characteristic of this pump.

Parameter data:

model flow




outlet pressure




allow max. partical


max. supply pressure


max. air consumption


QBY-10 0-0.8 0-50 6 5 1 7 0.3
QBY-15 0-1 0-50 6 5 1 7 0.3
QBY-25 0-2.4 0-50 6 7 2.5 7 0.6
QBY-40 0-8 0-50 6 7 4.5 7 0.6
QBY-50 0-12 0-50 6 7 8 7 0.9
QBY-65 0-16 0-50 6 7 8 7 0.9
QBY-80 0-24 0-50 6 7 10 7 1.5
QBY-100 0-30 0-50 6 7 10 7 1.5

Main uses:

Pumping peanut butter, pickles, mashed potatoes, small sausage, jam apple syrup, chocolate and so on.

Pumping paint, gum and pigment.

Adhesives and glue, all kinds of available pump draw.

All kinds of tile, porcelain, tiles and pottery glaze.

After the oil well drilled by pumping sediment and filling.

Pumping various creams and fillers.

Various sewage pumping.

Pumps for the tanker, barge warehouse clearance absorb water.

Hops and yeast slurry, syrup, molasses.

Pump shaft, tunnel, tunnels, ore dressing, slag in the water. Pumping cement grout and mortar.

Various rubber slurry.

All kinds of abrasive, corrosive, oil and mud, grease and general cleaning containers.

A variety of toxic, flammable, volatile liquid.

All kinds of acid, alkali, strong corrosive liquids.

It can withstand up to a variety of high temperature liquid 150 degree.

Before pressure feeder as a variety of solid-liquid separation equipment.


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