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Air Operated Double
Diaphragm Pump Instructions
MODEL: QBK-40L / QBY4-50L / QBY4-25L /
QBY4-25LF46 / QBY-15PP / QBK-15P / QBK-15
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MODEL: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46/QBY-15PP/QBK-15P/QBK-15
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This is the original instruction, please read all manual instructions
carefully before operating. VEVOR reserves a clear interpretation of our
user manual. The appearance of the product shall be subject to the
product you received. Please forgive us that we won't inform you again if
there are any technology or software updates on our product.
Air Operated Double
Diaphragm Pump
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Warning-To reduce the risk of injury, user must read
instructions manual carefully.
PRODUCT PRESENTATION
This series of diaphragm pumps are the latest model at home.They are
functioned to take out and suck in various corrosiveiquid containing
granules,viscous,volatile,inflammabale,explosive or poisonous
liquid,porcelain slurry,mashed fruit,flue.the reclamation of residual oil in
tanker.temporary reversionof tanker,etc,The performanceparametersofthis
series are close to shat of Germam WLLDENPUMPS and American
MARI0-WPUMPS The componentsin contact with flow are made of
stainlesssteel.aluminium alloy , castirron andenineerina plastics.while
diaphraammav be NBR.viton.neoprene or PTFE.
MAIN APPLICATION
1.The Pump can suck the peanut, pickles, tomato,slurry,red
sausage,chocolate,hops, and syrup,etc.
2.The Pump can suck the paint,pigment, glue and adhesive etc.;
3.The pump can suck various glezed slurries of tile,porcelain,brck and
chinaware etc.
4.The pump can suck various grnding materials,corrosive agent and cean
the oil dirt etc.
5.The pump can suck various toxin and flammable or volatility liquid etc.
6.The pump can suck various wedge water,cement slurry and mortar etc
7.The pump can suck various strong acid,alkali and corrosive liquid etc.
8.lt canbe used as a front-step transmisson device of the solid and ligiud
separation equipment.
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WAY TO INSTALL
PERFORMANCE CHARACTERISTICS
Air operated double diaphragm pumps not only can exhaust the flow
liquid,But also convey some uneasyflowed medium with the merits of
self-pumping pump,Diving pump,Shield pump,Slurrypump and impurity
pump etc
1.lt's unnecessary to pour the drawing water,the suction lift reaches7m
height,The delivery lift reaches50m lenath and the
exportpressure>6kgf/cm²;
2.Wide flow and good performace.The diameter allowed to pass the max
grain reaches 10mm.The damage is very less to the pump while
exhausting the slurry andimpurity;
3.The delivery life and flow can pass the pneumatic valve open to realize
the stepless adiustment(The pneumatic pressuseadjustmentis
between2-8kgf/cm²):
4.This pump has no rotary parts and no bearing seals.The diaphragm will
completely separate theexhaustedmedium anopump running parts,working
medium.The conveyed medium can't be leaked outside.Thus it wil not
cause the environmentapollution and humenbody safety dengerous
whileexhausting the toxin and flammable or corrosuve medim:
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5.No electricitylt's safe and reliable while using in the flammable and
explore places:
6.lt can be soakedin medium;
7.lt's convenient to use and reliable to work.Only open or close the gas
valve body while starting or stopping.Even itno medium operation or
pausing suddenly for long time because of accident matters,the pump wil
not bedamagedaused bvthis Once ocer-oadinc.The pump wil automaticallv
stop and possesses the selforotectionfunction.when the loarecovers
normally,lt also can start automaticelly;
8.Simple structure and less wearing parts.Thisp pump is simple in
structure.lnstallation and maintenance.The me dium conveyecbythe
pumpwillnot touch the matched pneumatic valve and coupling lever etc.Not
like other kinds pumps ,the perform Ancewill drop down
graduallydecauseof the damages of rotor,gear and vane etc.
9.It can transmit the adhesive(the viscosity is below 10000 centipoise)
10.This pump needn't the oil lubricant.Even if idling,it has any influence to
the pump.This isa characteristic of this pump
OPERATIONAL PRINCIPLE
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There installs each diaphragm in both aligned working
cavities(A)&(B),which can be connected together with
acentralcoupling lever.The compression air enters the air distribution
valve from the air entrance of the pump,the compression airinto one
cavity through the air distribution mechanism,push out the
diaphragm movementin the cavity.The gas in anothercavity will be
drained.Once reachi.ng the stroke terminal,the air distribution
mechanicm will automatically draw thecomperession air into
aanother working cavity,push out the diaphragm tomove towa rds
the opposite direction,so as to le.tthe both diaphragms continuously
reciprocate motion in synchronism.
The compression air enters the air distribut valve fr'om(E)shown as
the diagram,let the diaphragm piece movetowards theright
direction.An:d the suction force i'n(A)chamber lets the medium flow
into from(C)entrance,push out the ball
valve(2)toenter(A)chamber,the ball valve(4)will be locked due to the
suction force;The medium in(B)chamber will be pressed rpush
outthe ball valve(3)to flow out from the exit(D).Meanwhile,let the ball
valve(I)close,prevent backflow.Such mocement in circleswill let the
medium uninterruptedly suck from(C)entrance anddrain from(D)exit.
CONNECTION SCHEMATIC DIAGRAM
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PERFORMANCE PARAMETE
Note: Affected by the stability of gas supply and the environment, the parameters may have certain
fluctuations or errors, which is a normal phenomenon.
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QBK INSTALLATION SIZE CHART
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Note:QBY-10 and 15 cast iron/aluminum/stainless steel/plastic
material import and export are threaded connection,not
blue.QBY-25and 40 stainless steel/plastic material import and export
are threaded connection,not blue,cast iron /aluminum alloy and
export are flanged,threaded connection dual-use.QBY-50/65/80/100
are flanged,no threaded.(Please refer to actual sample product
catalogpictures)
STRUCTURE DRAWING AND PARTS LIST
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MATTERS NEED ATTENTION
1.If the pump vibration is very slight,there is generally no need to
install the foundation bolts.
2.1f the compressed air is mixed with dirty things,normal starting of
the pump will be influenced.It is suggested that the usershould
additionally install the pneumatic triplex parts.
3.When pumping media that will easily freeze or deposit,please
install a valve at the inlet of the pump.If the pump is to
bestopped,please firstly close the valve,and then run the pump for
several minutes to empty the media inside the pump and cleanthe
accumulated liquid inside the pump in time,so as to avoid any
difficulties in starting the pump next time.
4.When replacing the diaphragm,please clean the connecting rod in
the inner cavity and the copper bush of the pump.And
avoiddamaging the white PTFE seal ring.Make the reassembly as
original,and the pump can be used.
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FAULT AND EXCLUSION
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