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Introduction
The QBK series air operated double diaphragm pump is a type of positive displacement pump that uses compressed air to drive the pumping action. It is widely used in chemical industries due to its reliability and efficiency. This pump features a diaphragm structure which ensures no leakage and resistance to corrosion.
Pump Spare Parts
Package 
 Specification
Model
Inlet/outlet
DiaMax. FlowÂ
Head
Max. Suction stroke
Max. Particle
Dia.Max. Air Supply Pressure
Max. Air Consumption
inch
m3/h
L/min
m
m
mm
kg/cm2
m3/min
QBK-06/10
1/4 or 3/8
1.62
27
0-70
6.4
1.6
7
0.14
QBK-15/20
1/2 or 3/4
3.42
57
0-84
7.6
2.5
8.4
0.56
QBK-25
1
9.42
157
0-84
8
4
8.4
1.12
QBK-40
1.5
21.48
358
0-84
8
5
8.4
2.24
QBK-50
2
35.22
587
0-84
8
6
8.4
2.8
QBK-80
3
63.6
1060
0-84
8
9.4
8.4
9.8
Our Service
1. Delivery: We ensure on-time delivery as per the contract. The usual delivery time for diaphragm pumps is 5-7 working days.
2. Warranty: 1 year for the pump body, 3 months for the main working parts.
3. Packaging: We use strong cartons or plywood cases based on your order quantity, suitable for ocean transport.
4. Shipping: Available via sea, air, and international express.
5. Payment: We accept T/T, L/C, West Union, and more.
6. Pre-sales Service: We provide professional advice on pump solutions tailored to your needs.
7. On-sales Service: We keep you informed with photos or videos of our production process when you place an order.
8. After-sales Service: We will report on the production progress and follow up on the pump's performance every three months after installation. If needed, we can send spare parts within one week.
About Us
Welcome to visit our company!
Model NO.: QBK
Performance: Explosion Proof
Pump Material: Stainless Steel
Center Block Material: Aluminum, Stainless Steel, Polypropylene
Valve Ball Material: Teflon, Santoprene, Buna-N, Viton etc.
Valve Seat Material: Teflon, Santoprene, Buna-N, Viton, etc.
Pump Spare Parts: Diaphragm, Ball, Air Valve, Shaft etc.
Connection: Thread Connection or Flange Connection
Application: Chemical Industry
Feature: Anti Corrosion, No Leak
Theory: Reciprocating Pump
Trademark: Y&L
Transport Package: Strong Carton or Standard Plywood Case
Specification: 1/2/3 inch
Origin: Shanghai, China
HS Code: 8414809090
Air Pneumatic Diaphragm Pump for Chemical Industry
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