Name: DEFU Brand Air Operated Double Diaphragm Chemical Pump
Brand: DEFU
Availability: InStock

Product Details

DEFU Brand Air Operated Double Diaphragm Chemical Pump

Product Description

QBK series pneumatic diaphragm pump is driven by air. It is a kind of positive displacement pumps which volume changes caused by compressing diaphragms in both side.

Parameters

Inlet/outlet	06-80mm
Capacity	0-63.6m3/h
Head	0-84m
Sucktion Lift	6.4-8m
Exit Pressure	7-8.4 kgf/cm2
Max Grain Dia	9.4mm
Max Air Pressure	8.4 kgf/cm2
Max Air Consumption	9.8 m3/min
Certification	ISO9001:2008;CE
Pump body	Stainless Steel, Cast Iron, Aluminum, Polypropylene, Engineering Plastic, Cast Steel+Teflon Lined, Cast Iron+Rubber Lined;
Diaphragm	NBR,Viton,Neoprene,Teflon,EPDM,Santoprene,Hytrel,PVDE etc.

Parameters Table -- Click each model to get more information

Model	Flow (m3/h)	Head (m)	Suction Stroke (m)	Max Particle Dia. (mm)	Max.Air Pressure (kg/cm2)	Max.Air Consumption (m3/min)
QBK-10	0-1.62	0-84	6.4	1.6	7	0.14
QBK-15	0-3.42	0-84	7.6	2.5	8.4	0.56
QBK-25	0-9.42	0-84	8	4	8.4	1.12
QBK-40	0-21.48	0-84	8	5	8.4	2.24
QBK-50	0-35.22	0-84	8	6	8.4	2.8
QBK-80	0-63.6	0-84	8	9.4	8.4	9.8

Product Images

Stainless Steel Pump (SS304/316/316L)

Plastic Pump (PP, PVDF, Acetal)

Aluminum Alloy Pump

Product and parts images

Applications

Practical Application from our customers

Packaging & Shipping

Packing: Our air operated double diaphragm pump can be packaged by carton or ploywood case.

Shipping:

According to your quantity or requirements, we can send the goods to u By International Express or By Sea.

International Express:(We will choose fast and economical way for u! )

express way etc.

By sea:(We will calaculate according to the below information if u choose this way)

QBK-50(2inch)

Gross Weight: 25KGS-30KGS (according to different materials of pump)

Package Size: about 0.15m3 (Carton)

FAQ

1. Q: Can I know more about your products?

A: Pls view our website: or contact us!

2. Q: What’s your MOQ of this item?

A: 1~2PCS

3. Q: What is the lead time?

A : For the order in stock ,we will deliver goods at once against payment.

For the orders out of stock, the products time is 7 days , deliver time is 3-6days for express, if by sea, the deliver time is base on the shipping date.

4. Q: where is your loading port?

A: Shanghai or Ningbo, China port,also we accept other

5. Q: What is the Warranty ?

A: The whole pump is guaranteed within 1 year, the pump's spare parts are guranteed for 3 months from the date of delivery.

6. Q : How is the pump delivered to us ?

A : For small order will be delivered by internation express ,like DHL,TNT ,FEDEX,UPS.

For large order ,it will be delivered by air ,sea ,vehicle or multi-modal transport.

7. Q: What is your quality of the diaphragm pumps?

A: Please see the below feedback from our customers.

Our Services

Pre-sale

Good presale service is an important guarantee to the customer interest. our professional senior service engineer to provide customers with design plans and consultant, which avoids the unnecessary loss

caused by improper operation of customers to the largest extent.
In-sale
Our highly professional service staff continuously provides tracking service, giving instruction to

installation, explicating the operation main points and cautions in order to ensure the efficient operation

of the product and reduce the breakdowns caused by improper operation of customers to the largest

extent.

After-sale
We will check the customers' usage of pump regular positively in order to correct the improper

operation of customers in time, carry through the guidance of maintenance in time.