QBW new type stainless steel sanitary diaphragm pump

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$50.00 - $5,000.00 / Set | 1 Set/Sets (Min. Order)
Circulating Pumps Positive displacement pumps DIAPHRAGM PUMPS Pneumatic Pump Stainless Stainless Pump
Maximum Head:
Maximum Flow Rate:
Support Express · Sea freight · Land freight · Air freight
Lead Time:
Quantity(Sets) 1 - 5 >5
Est. Time(days) 10 Negotiable
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Quick Details
Brand Name:
Meir Heng
Model Number:
Place of Origin:
Hubei, China
Diaphragm Pump
High Pressure
Standard or Nonstandard:
Reciprocating Pump
Casing material:
Stainless steel
Inlet/Outler diameter:
3/8 ~ 5inch
Quick-wear part:
Diaphragm, ball, etc
Flow rate range:
Material of diaphragm and ball:
F46, PTFE, NBR, Santoprene, EPDM, etc
Transfer oil, diesel, kerosene, etc
Supply Ability
Supply Ability:
200 Set/Sets per Month
Packaging & Delivery
Packaging Details
Plywood case
Shanghai, Ningbo, Shenzhen etc.
Lead Time :
Quantity(Sets) 1 - 5 >5
Est. Time(days) 10 To be negotiated


QBW new type stainless steel sanitary diaphragm pump



Brief introduction 


Hygienic pneumatic diaphragm pump QBW series has the advantages of no sealing, explosion-proof, low shear, easy maintenance, idling, light weight, self-priming and so on. It also has excellent hygienic performance and can satisfy food and beverage. , pharmaceuticals, etc., high-level health work requirements.


Working principle:

A flexible diaphragm is installed in each of the symmetrical working chambers of the hygienic diaphragm pump. The connecting rod connects the two diaphragms together. After the compressed air enters the valve chamber from the intake joint of the pump, the diaphragm in the two working chambers is pushed forward. Synchronized motion of diaphragm driven by connecting rod. At the same time, the gas in another working chamber is discharged from the back of its diaphragm to the outside of pump. When the piston reaches the end of the stroke, the valve mechanism automatically introduces compressed air into another working chamber, pushing the diaphragm pump to move backwards, thus forming a synchronous reciprocating motion of the two diaphragms. Two one-way ball valves are installed in each working chamber. The reciprocating motion of the diaphragm results in the change of the volume of the working chamber. The two one-way ball valves are opened and closed alternately, so that the liquid can be continuously inhaled and discharged.



1, using precision casting, the surface is smooth and tidy, and has a higher strength.

2. The valve ball is further ground by a special machine, which has high roundness and good sealing performance.

3. Accurately calculate the moving distance of the diaphragm, reduce the force of the diaphragm, and have a longer service life.

4, four bolt connection design, good sealing performance, the actual dry suction can reach 3-7.6 meters.

5, three-section upper and lower cover, flexible installation.

6. The integrated design of the diaphragm retaining block has excellent pressure resistance and high temperature resistance and is widely used in the filter press industry.

7. The diaphragm connecting rod is made of wear-resistant stainless steel, which has better corrosion resistance and longer life.


Product application:




Product details


Working Principle:

Double Diaphragms, pneumatic

Main applications:  

Chemical, Foodstuff,etc.


Air operated

Max.permissible fluid temperature:


Type of connection:

Flange, Thread, Quick Coupled.

Installation position:

Connect to compressor

Pump body mateiral:

CI, SS, AL, PP, PVDF, PTFE lined.

Diaphragm, ball, ball seat mateiral:

 F46, PTFE, NBR, Santoprene, EPDM, etc

Maximum drive rating: 


Maximum caliber:  


Maximum head:


Flow rate range: 



Performance data




More pictures





>>>View more diaphragm pump pictures, pls click it.




Q: How about delivery time?

A:1. It is about 3-7 working days if products are in stocks.
   2. If product are out of stock, The delivery time depends on the quantity.
Q: Could you provide samples?
A: Yes, of course. We will send samples to you against advance deposit, but the price of sample pump and the freight charge is paied by your side.
Q: How about product problem solution?
A: If you can’t solve the problem in your local, please send the product to us, we will repair it, then back  to you.


Q: What is your payment term?

A:T.T, Western union, etc.




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