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Introduction
The QBK series air operated double diaphragm pump is a reliable and efficient solution for handling various liquids in the chemical industry. Driven by compressed air, it operates as a positive displacement pump, where the movement of the diaphragms on both sides creates the pumping action. This design makes it ideal for applications involving corrosive or abrasive fluids.
Pump Spare Parts
Package 
 Specification
Model
Inlet/outlet Dia
Max. Flow
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 timely delivery according to the contract. Usually, the delivery time for diaphragm pumps is within 5-7 working days.
2. Warranty: 1 year for the pump body, 3 months for main working parts.
3. Packaging: Based on your quantity, we use strong cartons or plywood cases, which are durable for ocean transport.
4. Shipping: Options include sea, air, and international express.
5. Payment: We accept T/T, L/C, Western Union, and more.
6. Pre-sales Service: According to your needs, we provide professional advice on pump solutions.
7. On-sales Service: When you place an order, we will show you everything in detail. We take photos or videos to demonstrate our production progress.
8. After-sales Service: We keep you updated with the production progress and plan. Additionally, we follow up on the pump's performance every three months after installation and can send spare parts within one week if needed.
About Us
Welcome to visit our company!
Model NO.: QBK
Performance: Explosion
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
Diaphragm Structure Air Pneumatic Power Pump for Chemical Industry
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