Air Operated Diaphragm Pump for Petrochemical Industry
QBK series pump is an air operated double diaphragm pump, which is driven by air. It is a kind of positive displacement pumps which volume changes caused by compressing diaphragms in both side. This pump not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self priming pump, slurry pump and impurity pump, etc. Application
Shenzhen Longyin Printing Packing Co. Ltd is a professional printing company which located in Shenzhen nearby Hongkong S.A.R. With convenient transportation system and export advantageous geographic position. Our factory occupied with 4800 Square meters plant, Around 150 employees that including around 50 various technical staffs who already in the printing area for more than 15years. Furthermore, all of our products are manufactured with advanced equipment and under strict QC procedures in order to ensure high quality. Guaranteeing stable and timely supply, credible quality and sincere service. Equipped with Kodak CTP machines, Heidelberg 4 color machines, Heidelberg 8 color machines Komri 4-color machines, 2sets of Automatic Martini Hardcover Binding Machine, Saddle stitching binding machines, Martini adhesive binding machines, Folding machines, cutting machine etc. that can reach high quality printing and binding standard.
print book softcover novel, book printing softcover luxury, board book printing Shenzhen Longyin Printing Packing Co., Ltd. , https://www.longyinprint.com
Introduction
Working Principle:
Double Diaphragms, Pneumatic
Main applications: Â Â Â Â Â Â
Oil, Water, Chemical, etc.
Driver:
Air Operated
Max.permissible fluid temperature:
150°C(302°F)
Type of connection:
Flange, Thread, Quick coupled
Installation position:
Connect to compressor
Casing parts material:
C.I, S.S, PP, Aluminium, PVDF, PTFE linning
Maximum grain diameter:
10mm (3/8inch)
Maximum drive rating:Â
7kgf/cm2
Maximum caliber:Â Â
100mm(4inch)
Maximum discharge-side pressure:
6kgf/cm2
Maximum head:
50m(164ft)
Flow rate range: Â
0.8-30m3/h(3.5-132US.GPM)
 
Main specifications
 Type
 Max Flow Rate (L/Min)
 Discharge pressure (Bar)
Sucked Lift (m)
 Max Grain Diameter (mm)
Max Air Consumption (L/min)
              Materical of Diaphragm
 una-N
    Neoprene
EPDM
Viton
Teflon
QBY-8
16
6.9
5
1
300
Y
Y
Y
Y
Y
QBY-10
20
6.9
5
1
300
Y
Y
Y
Y
Y
QBY-15
20
6.9
5
1
300
Y
Y
Y
Y
Y
QBY-25
100
6.9
5
2.5
600
Y
Y
Y
Y
Y
QBY-40
140
6.9
5
4.5
600
Y
Y
Y
Y
Y
QBY-50
240
6.9
5
8
900
Y
Y
Y
Y
Y
QBY-65
280
6.9
5
8
900
Y
Y
Y
Y
Y
QBY-80
400
6.9
5
10
1500
Y
Y
Y
Y
Y
QBY-100
480
6.9
5
10
1500
Y
Y
Y
Y
Y
Product Images
Our Service
1. Delivery: Delivery time will be on time as the contract. Usually, the delivery time of diaphragm pump is 5-7 working days.
2. Warranty: 1Â year for the pump body, 3months for the main working parts.
3. Package: According to your quantity, we use strong carton or plywood case which is durable for ocean transport.
4. Shipping: By Sea, By Air and By International Express.
5. Payment: we can accept T/T, L/C , West Union and so on.
6. Pre-sales Service: According to your requirement, we will give you our profession advice of pump solution.
7. On-sales Service: We will clearly show you everything in fact when you place an order with us. We will takes photos or videos to show you our production situation.
8. After-sales Service: We will full report you the production progress and plan. Meanwhile, we will follow up the pump working conditions per three months when the pumps put into use, and can send the spare parts to you within one week if u need.
Our factory 
Contact Us
Â