Translate
Get social with us!

Air Operated Double Diaphragm Pumps

Air Operated Double Diaphragm Pumps</a>
Air Operated Double Diaphragm Pumps</a>
Air Operated Double Diaphragm Pumps</a>

Air Operated Double Diaphragm Pumps

Request Quote

WORKING PRINCIPLES

There installs each diaphragm in both aligned working cavities (A) & (B), which can be connected together with a central coupling lever. The compression air enters the air distribution valve from the air entrance of the pump, draw the compression air into one cavity through the air distribution mechanism, push out the diaphragm movement in the cavity. The gas in another cavity will be drained.

Once reaching the stroke terminal, the air distribution mechanism will automatically draw the compression air into another working cavity, push out the diaphragm to move towards the opposite direction, so as to let the both diaphragms continuously reciprocate motion in synchronism.

The compression air enters the air distribution valve from (E) shown as the diagram, let the diaphragm piece move towards the right direction. And the suction force in (A) chamber lets the medium flow into from (C) entrance, push out the ball valve (2) to enter (A) chamber, the ball valve (4) will be locked due to the suction force; The medium in (B) chamber will be pressed, push out the ball valve (3) to flow out from the exit (D). Meanwhile, let the ball valve (1) close, prevent backflow. Such movement in circles will let the medium uninterruptedly suck from (C) entrance and drain from (D) exit.

Working Principles

MAIN USAGE

The pump can suck the peanut, pickles, tomato slurry, red sausage, chocolate, hops and syrup etc.

The pump can suck the paint, pigment, glue and adhesive etc.

The pump can suck various glazed slurries of tile, porcelain, brick and chinaware etc.

The pump can suck various grinding materials, corrosive agent and clean the oil dirt etc.

The pump can suck various toxin and flammable or volatility liquid etc.

The pump can suck various wedge water, cement slurry and mortar etc.

The pump can suck various strong acid, alkali and corrosive liquid etc.

It can be used as a front-step transmission device of the solid and liquid separation equipment.

SYSTEM CONNECTION SCHEMATIC DIAGRAM

QBY - K8


QBY-K10/15


QBY-K25


QBY-K40

DRAWING OF SETTING DATA

PUMP SPECIFICATION

Total Discharge Head (Meter)

Model A B C D E H1 H2 H3 H Screw Flange
NPT/RC D1 D2 D3 D n d
QBY-K8 97 84 147 115 7 20 110 10 143 3/8 - - - - - -
QBY-K10/15 130 50 220 145 10 39 195 10 270 1/2 - - - - - -
QBY-K25 245 160 360 250 12 63 36 360 470 1 - - - - - -
QBY-K40 245 160 360 250 12 63 360 35 470 11/2 - - - - - -
QBY-K50 335 220 540 345 16 88 - 25 720 - 90 50 110 130x130 4 14
QBY-K65 335 220 540 345 16 88 - 25 720 - 110 65 130 130x130 4 14
QBY-K80 425 250 570 450 18 110 - 32 900 - 125 80 150 160x160 4 18
QBY-K100 425 250 570 450 18 110 - 32 900 - 145 100 170 160x160 4 18

PERFORMANCE PARAMETER

Model No Discharge
(m3h)
Head(m) Exit pressure
(kgf/cm2)
Sucked lift(m) Max. gain Dia(mm) Max. Pressure
(kgf/cm2)
Max. air consumption
(m3min)
(m3/min)
Materaials
ZL104 1Cr18
Ni9Ti
HT200 Enhanced
Polypropylene
Fluorin-lining in filtrated part F46 (EFP), PO
QBY-K8 0~0.8 0~50 6 5 1 7 0.6 0.3 /
QBY-K10/15 0~1 0~50 6 5 1 7 0.6 0.3 /
QBY-K25 0~2.4 0~50 6 7 2.5 7 1.7 0.6
QBY-K40 0~8 0~50 6 7 4.5 7 1.7 0.6
QBY-K50 0~12 0~50 6 7 8 7 4.9 1.7 /
QBY-K65 0~16 0~50 6 7 8 7 4.9 1.7 /
QBY-K80 0~24 0~50 6 7 10 7 9.1 3 / /
QBY-K100 0~30 0~50 6 7 10 7 9.1 3 / /

DRAWING OF SETTING DATA

STRUCTURAL DRAWING AND FITTINGS

>>Piloted air change structure >>Built-in air valve all-in-one

PART LIST

No. Name Quantity Material
1 Inlet pipe 1 Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2 Outlet pipe 1 Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3 Pump body 2 Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4 Pump chamber 2 Aluminium alloy, cast iron
5 Intermediate 1 Aluminium alloy
6 Diaphragm vane 2 PTFE
7 Diaphragm vane 2 Acrylonitrile butadiene rubber, polychloroprene
8 Intermediate seal gasket 2 Acrylonitrile butadiene rubber
9 Driving shaft housing 2 Plastic
10 Connecting rod shaft housing 2 Plastic
11 Piston bush 2 Plastic
12 Piston 2 Plastic
13 Slipper block 1 Aluminium alloy
14 Slipper block 1 Chromium-plated steel
15 Sealing slip ring 1 Plastic
16 Driving slipper block 1 Plastic
17 Cover plate 1 Aluminium alloy
18 Cover plate gasket 1 Rubber
19 Muffler 1 Plastic
20 Seal seat 4 Rubber
21 Seal seat 4 PTFE
22 Clamping bar 4 Stainless steel, carbon steel
23 Connecting rod 1 Stainless steel
24 Compression spring 1 Copper
25 Driving shaft Stainless steel
26 Seal ring of driving shaft 2 Rubber
27 Y-type O-ring 4 Rubber
28 O-ring 1 Rubber
29 Butterfly-type O-ring 1 Rubber
30 Inlet nozzle 1 Copper
31 Ball sealer 4 Rubber
32 Ball sealer 4 Stainless steel, ceramic, PTFE

PART LIST

Medium / Variety Nitrile Rubber Chloroprene Rubber Fluorine Rubber PTFE Food Rubber
Smoke nitric acid Х Х Δ Δ
Density nitric acid Х Х Δ Δ
Density sulfuric acid Х Х О Δ
Density hydrochloric acid Х Δ Δ Δ
Density phosphoric acid Х Δ Δ Δ
Density acetic acid Х Х Х Δ
Density sodium hydroxide О О Δ Δ
Non-aqueous ammonia Δ Δ Δ Δ
Thin nitric acid Х Х О Δ
Thin sulfuric acid Δ Δ Δ Δ
Thin hydrochloric acid Х О Δ Δ
Thin phosphoric acid Х Х Δ Δ
Thin sodium hydroxide О О Δ Δ
Liquid ammonia Δ Х
Benzene Х Х О О
Gasoline О О О О
Petroleum Δ Х О О
Carbon tetrachloride О О О
Carbon disulphite О Х О
Alcohol О О О О
Acetone Х Δ Х О
Cresol Х Δ Δ О
Acetic aldehyde Х Х Δ О
Ethyl benzene Х Х Δ О
Acrylonitrile Δ Δ Х О
Butanol О О О О
Butadience О Х Δ О
Styrene Х Х Δ О
Vinyl acetate resin Х Х Х О
Ether Х Х Х О

Other Products